A.
Street classifications.
B.
Street grading and paving standards.
(2)
Materials. The base course and wearing surface of all streets shall
be constructed in accordance with the standards of this chapter, and
all materials used shall meet the latest Pennsylvania Department of
Transportation specifications. Additional base course depths may be
required as the Engineer may determine to be necessary for the type
of street that has been proposed.
(3)
Subsurface drains. Permanent underdrains of a size and slope to be
determined by the Engineer shall be installed on the upper or higher
side of all streets and in cut areas where they are necessary to prevent
the infiltration of water under the paved roadway. All underdrains
shall parallel the roadway as nearly as possible and shall be in accordance
with construction standard 1 in Appendix A.[3]
[3]
Editor's Note: Appendix A is on file in the Borough office.
(4)
Shoulders. Street shoulders shall be graded for the full width of
the right-of-way in accordance with this chapter and thoroughly compacted
by rolling all shoulders. Slopes shall be seeded to prevent erosion.
(5)
Utilities in streets. All utilities crossing streets shall be installed
in trenches backfilled and compacted with aggregate meeting PennDOT
specifications and approved by the Engineer, and all other utilities
within the right-of-way of streets shall be installed before paving
is completed.
(7)
Paving notch detail. New asphalt pavement shall meet existing asphalt
pavement in accordance with construction standard 2 in Appendix A.
(8)
Two-phase paving. When the bituminous paving of a development is
necessary prior to the completion of the construction activity and
heavy hauling within the development, a two-phase paving operation
may be utilized. The first phase of paving shall include the entire
pavement section excluding the final wearing course. A construction
seal, or one-half-inch scratch course, shall be applied at this time
for the purposes of skid resistance. The design wearing course depth
shall be applied at the time of the development's substantial completion,
as determined by the Borough Engineer in conjunction with the Borough
Manager. Prior to the final wearing course being applied, the existing
surface shall be properly swept clean and a tack coat shall be applied.
This operation shall be approved by the Borough Engineer.[5]
(9)
Curb ramps. The location and design of all curb ramps for access
by disabled persons shall be approved by the Engineer. Such approval
does not represent compliance with the Accessibility Guidelines of
the Americans with Disabilities Act. Curb cuts in straight curbs shall
be in accordance with construction standards 6, 7 and 8 in Appendix
A.[6]
[6]
Editor's Note: Appendix A is on file in the Borough office.
(10)
Curbing. In any construction where concrete curb is being installed
adjacent to bituminous wedge curbing, a concrete curb transition must
be applied to the end of the concrete curb to blend the concrete curb
into the bituminous wedge curb. Please refer to construction standard
10 in Appendix A.
C.
Street design criteria.
(1)
All street classifications. Geometric design shall be in accordance with AASHTO standards and the table in this Subsection C(1) unless otherwise approved by the Engineer.
|
Table C(1)
Street Design Standards
| |||||
|---|---|---|---|---|---|
|
Type
|
Arterial Street
|
Collector Streets
|
Minor Collector Street
|
Local Streets
| |
|
Design speed (mph)
|
50
|
35
|
25
|
25
| |
|
Right-of-way width, minimum (feet)
|
50
|
50
|
50
|
50
| |
|
Cartway paving width (feet)
|
*
|
28
|
24
|
24
| |
|
Maximum grade (minimum grade no less than 1% for all streets)
|
6%
|
8%
|
10%
|
10%
| |
|
Minimum angle for intersection
|
*
|
80°
|
80°
|
80°
| |
|
Minimum curb radius (feet)
|
50
|
25
|
25
|
25
| |
|
Grades for 25 feet before intersection
|
7%
|
7%
|
7%
|
7%
| |
|
Intersection sight distance (feet)
|
Per PennDOT Publication 70M
| ||||
|
Clear sight triangles
|
500
|
300
|
200
|
200
| |
|
Horizontal alignment (minimum radii of center line) (feet)
|
700
|
350
|
200
|
100
| |
|
Cross slope
|
*
|
2% minimum
6% maximum
|
2%
| ||
|
Vertical curves (feet)
|
150
|
100
|
100
|
50
| |
|
Reverse curves shall have a minimum tangent between them of
(feet)
|
300
|
300
|
300
|
150
| |
|
NOTES:
| ||
|---|---|---|
|
*
|
To be determined after consultation with the Planning Commission
and the Pennsylvania Department of Transportation.
| |
(a)
Clear sight triangle. No obstructions shall be located within
the right-of-way or lot which obscure visibility at the intersection
of two streets or of a street and a residential driveway. A clear
sight triangle, as defined by this chapter, shall be maintained free
of any obstructions. The sides of the clear sight triangle shall be
measured along the center line of the intersecting streets and shall
meet the minimum standards shown in Table C(1). The clear sight triangle
shall be shown on the final plat for recording if it is beyond the
boundary of the right-of-way.
(b)
Minimum sight distance. When a new street intersects an existing
street, the minimum sight distance at the intersection shall be provided
in accordance with the requirements of Table C(1).
(c)
Roadway design specification. The minimum allowable street grade
shall be 1%. The maximum allowable street grade shall be 10%. The
minimum allowable length of vertical curve shall be determined by
the guidelines set forth in the American Association of State Highway
and Transportation Officials (AASHTO) publication, A Policy on Geometric
Design of Highways and Streets (Green Book), most recent edition.
Use of the "lower range" tables is acceptable for calculating vertical
curve lengths.
(2)
Cul-de-sac. Culs-de-sac shall meet the minimum standards shown in
construction standard 4 in Appendix A[7] and the Borough Subdivision and Land Development Ordinance.
A cul-de-sac street shall be designed as the appropriate street for
the stem, and the bulb shall be designed as appropriate.
[7]
Editor's Note: Appendix A is on file in the Borough office.
(3)
Pavement markings. All stop bars, transverse markings and crosswalks
shall be cold plastic. All longitude lines shall be Traffic Zone Paint,
Type II Waterborne.
[1]
Editor's Note: Former § 190-15, Stormwater management, was amended 5-9-2011 by Ord. No. 811-11. As it was more effective to incorporate this large amendment into the Code as an article of this chapter rather than as a single section, the Borough agreed to the redesignation of the provisions as Art. V, Stormwater Management.
A.
General requirements.
(1)
Introduction.
(a)
These specifications cover the requirements for construction
of all of the Borough's waterline facilities. These specifications
are intended for and apply to all such projects whether directly constructed
by a contractor(s) under contract to the Borough or constructed by
a land developer who in turn employs a construction contractor(s).
(b)
Where the term "Borough" is used herein, it shall mean the Borough
of Zelienople, its employees, management or Board, as is appropriate
for each occurrence of use of the term. When necessary, the Borough
may call upon its engineering and/or legal consultants for advice
and direction.
[Amended 10-10-2011 by Ord. No. 814-11]
(2)
Inspection of construction work.
(a)
All work performed in connection with the extension, modification
or improvement of public water facilities within the Borough shall
be required to conform with all Borough rules and regulations and
shall be inspected during construction by an authorized representative
of the Borough.
(b)
All completed work shall be required to meet the approval of
the Borough and shall be changed, modified, replaced, removed or otherwise
corrected by the contractor to such extent as directed by the Borough.
(c)
The work will be periodically or continuously inspected during
its progress and, when completed, shall be inspected jointly by the
Borough and the contractor.
(d)
The contractor shall keep on site, and make available upon request
by the Borough, a surveyor's rod and level for the purpose of spot
checking elevations as the work progresses.
(e)
The contractor shall also keep and make available a three-hundred-foot
surveyor's tape for the purpose of spot checking distances and for
the purpose of the contractor providing offset measurements as the
work progresses.
(3)
Rights-of-way.
(a)
The alignments and locations of the proposed pipelines and appurtenances
shall be shown on the plans. No pipeline shall be relocated outside
of the street or other right-of-way within which it is shown without
obtaining the formal written approval for such change from the Borough.
(b)
Where a special pipeline right-of-way is obtained through private
property, the minimum permanent width for operation and maintenance
purposes shall be 20 feet; the width of the temporary right-of-way
through such private properties for initial pipeline installation
and construction purposes shall be 40 feet, 10 feet of which shall
be located adjacent to and on the outside of both limits of the permanent
right-of-way. The minimum distance between the center of any longitudinal
pipeline and the right-of-way limit line shall be five feet. All construction
activities shall be confined within the forty-foot-wide construction
right-of-way as much as possible.
(c)
The contractor shall, however, make his own arrangements for
office space, materials storage yards, change trailers, sanitary facilities,
utility services, debris disposal sites, and for ingress and egress
to any location along the pipeline project for which the contractor
desires or requires use and for which the Borough has been granted
no such right-of-way.
(d)
Proposed pipelines and appurtenances may also encroach upon
right-of-way occupied by pipelines or other facilities owned, operated
and/or maintained by other utility companies and/or governmental agencies.
It shall be the responsibility of the contractor to notify the appropriate
representatives of those agencies in advance of performing any work
therein and to conduct all construction activities in accordance with
the respective regulations appertaining thereto. The contractor shall
utilize the Pennsylvania One Call System as required by law.
(e)
The position of waterlines proposed to be constructed in connection
with land development projects shall be such that, regardless of the
sequencing of various utility line construction, gas, power, telephone,
water, storm sewer, sanitary sewers, etc., no pipeline shall be aligned
longitudinally along either the water or sanitary sewer lines any
closer than 10 feet. It is imperative that such minimum distance be
maintained along all sanitary sewer and waterlines to provide space
required for future maintenance and/or repairs.
(f)
The separation between sanitary sewer and waterline pipe(s)
shall be in accordance with the regulations of the Pennsylvania Department
of Environmental Protection.
(4)
Control of pipeline elevations and alignments.
(a)
The contractor shall confirm the elevation of all existing facilities
to which proposed facilities will connect as well as the profile of
the existing and/or finished (in the case of land development projects)
ground lines prior to commencement of construction, to confirm compatibility.
(b)
The contractor shall employ competent field survey personnel
as may be required to control grades and/or alignment of proposed
facilities and to assist the Borough by obtaining information during
construction progress, and for purposes of preparing as-built record
drawings.
(5)
Traffic warning signs, barricades, lights and control.
(a)
Where pipelines and/or other facilities are constructed along
state highways and/or Borough streets, and where construction activities
may otherwise impede normal vehicular traffic patterns on said highways
or streets, the control of traffic shall be accomplished in accordance
with the details set forth in Publication 203 of the Pennsylvania
Department of Transportation, the title of which is "Work Zone Traffic
Control."
(b)
The position of work zone signs, erection of signs, sizes of
signs, details and configuration of signs, traffic channelizing, tapered
lengths/spacing, cones, drums, vertical panels, lighting devices,
arrow boards and all flagging conduct and activities shall conform
to the details described therein. The location and configuration of
traffic control methods shall conform to those graphically illustrated
on the appertaining Table 5 and Figures 5 through 23 shown in the
publication. The contractor shall submit a traffic control plan and
procedure (conforming to the above-referenced Publication 203) to
the Borough for approval, prior to commencing with field construction.
(6)
Exploratory excavations.
(a)
Some of the proposed pipelines and appurtenant structures are
somewhat flexible with respect to alignment. Therefore, in those existing
streets, roadways, berms or other areas expected to have a number
of underground utility lines, where there are large trees which may
be saved by realignment, and where the Borough so directs, the contractor
shall make appropriate exploratory excavations for the purpose of
locating said lines.
(b)
In all instances, the costs associated with exploratory excavations
shall be the responsibility of the contractor, and any realignment
of pipelines shall be approved by the Borough.
(7)
Existing utility lines — location, protection and hazards.
(a)
It is the responsibility of the contractor to obtain utility
information to properly complete the work in compliance with the specifications
and to contact the owners of the various utilities in the area prior
to starting and during performance of the work accordance with 73
P.S. § 180.
(b)
The contractor shall be completely and solely responsible for
any and all property damages, bodily injuries, financial losses and
interruption of service that result from or are attributable to his
construction activities and which affect waterlines, gas lines, electric
lines, telephone lines, drain lines, sanitary and storm sewer lines
and all appurtenances and service facilities connected thereto. Restoration
of all such disturbed facilities shall be accomplished immediately
after incurrence thereto.
(c)
Water, sewer, gas, power and telephone service to dwellings
or places of business shall be maintained with a minimum of interruption
throughout the construction of the contract work. No such service
shall be intentionally interrupted without the approval of the respective
utility company concerned and without first giving due warning to
the occupants of said dwelling or business establishment. At least
three working days' notice of an interruption in service shall be
given to the Borough so that the Borough may notify its customers.
(d)
In some areas it may be found that existing pipelines are in
a location where construction of the proposed work cannot reasonably
proceed until the utility has been relocated. The contractor shall
make all necessary subsurface investigations and shall locate such
utility mains far enough in advance of the trenching work so that
work progress is not unnecessarily interrupted.
(e)
Attention is directed to the fact that the proposed work could
be in close proximity to overhead power lines which transmit electric
current at high voltages and which, if disturbed or contacted during
construction, would be hazardous to construction personnel and/or
other persons. The contractor shall, therefore, properly protect such
wires, pole supports or other power line appurtenances to avoid disturbance
to those facilities and shall operate all machinery and conduct all
other construction activities in a manner which will assure protection
of all construction personnel and other persons against said hazards.
(f)
Work in the vicinity of the existing underground gas lines and
appurtenances is also hazardous because, under certain conditions,
such materials are flammable and/or explosive, and the contractor
shall avoid all temporary and permanent supports and other required
protection to prevent exposure of the same to construction personnel
and/or other persons. Where such lines are exposed during construction
and leakage is detected, construction work in those areas shall be
immediately suspended, the owner of the pipelines shall be immediately
advised of the condition, and the construction work shall not resume
until all repairs have been properly completed.
(g)
The construction activities required to be performed in the
conduct of the work may necessitate the interconnection, interception,
surveying, inspection, removal, replacement and repair of certain
existing manholes, sewer pipes and appurtenances. Said items are conveying
all wastes and runoff discharged to and infiltrating into the public
sewer system within the area served, which wastes may contain and/or
generate toxic, noxious oxygen-depleting or other liquid or gaseous
substances harmful to human beings.
(h)
The contractor shall also provide all personnel with all tools,
clothing and other devices necessary for such safe practice, including
appropriate waterproof clothing, respirators, protective glasses,
mechanical air-blowing equipment to pre-ventilate manholes and other
chambers, explosive atmosphere detectors, ladders, safety harnesses,
etc. No work shall be performed under any unsafe conditions and, if
same is detected at any time, the contractor shall, therefore, thoroughly
instruct all personnel involved in such work so that appropriate and
complete safety practices are observed at all times.
B.
General notes.
(1)
Shop drawings.
(a)
Prior to delivery to the job site, the contractor shall supply
to the Borough four copies of shop drawing details of all pipe and
appurtenances, including, but not limited to, pipe, valves, fittings,
hydrants, brass, boxes, manholes, frames and castings, steps, coatings,
etc.
(b)
Each shop drawing shall be stamped by the contractor and the
supplier. The supplier shall be an approved distributor of the manufactured
product and shall state such on the submittal.
(c)
No materials shall be incorporated in any waterlines or appurtenances
which have not received prior approval.
(d)
The Borough will review, make corrections on, and/or reject
submitted shop drawings and will return two copies to the contractor.
(2)
Preconstruction photos. Prior to any mobilization, one set of photos
of all proposed off-site construction shall be submitted to the Borough.
The photos shall be indexed with a date and location and in binder
format.
(3)
Restoration.
(a)
The contractor shall have no more than 1,000 lineal feet of
disturbed trench at one time.
(b)
All areas which are disturbed by construction operations, including
equipment and materials storage, and which are not occupied by pavement
or permanent structures, shall be seeded with grass seed or crown
vetch when slopes are greater than 3:1.
(c)
In lawns, gardens and in other improved areas (except for streets,
roadways and traveled ways), the top of the backfill material shall
be placed to an elevation approximately six inches below the finished
ground surface. The top six inches shall be topsoil that has been
screened of impurities prior to spreading. All excavated areas and
other areas where construction equipment and activities impose damage
to ground surfaces shall receive six inches of screened topsoil.
(d)
After the topsoil has been spread, all lawns shall be restored
by raking the area disturbed by construction. An application of an
approved fertilizer at a rate of 50 pounds per 1,000 square feet shall
be made. Said area then shall be completed with peat moss, mushroom
manure or other approved grass seed shall be sown. The contractor
shall be responsible for restoration of all settlements and for properly
preparing the topsoil, applying fertilizer and mulch and planting
the seed, but will not be responsible to water those restored areas.
(e)
All shrubbery which is removed temporarily to accommodate construction
shall be promptly replaced after backfilling is completed and shall
be fertilized and otherwise treated to ensure restoration to a condition
existing prior to construction.
(f)
Shrubbery which is not successfully removed and replaced shall
be placed by the contractor for the period of eighteen-month maintenance
bond.
(g)
The contractor shall furnish nursery-grown stock. The plant
shall be replaced in kind unless directed otherwise by the Borough.
All plantings which have died or which do not exhibit a healthy and
vigorous growth shall be replaced by the contractor.
(h)
Any surface irregularities shall be corrected to prevent formation
of low places where surface water may pool.
(4)
Seed mixture.
(a)
Temporary cover. Seed mixture for temporary cover shall consist
of 100% annual ryegrass. Seed shall be applied at the rate of 10 pounds
per 1,000 square yards unless noted otherwise.
(b)
Permanent cover (mowed areas). Seed mixture for permanent grass
cover shall consist of the following: perennial ryegrass mixture (20%
by weight), creeping red fescue (30% by weight) and Kentucky bluegrass
mixture (50% by weight). Seed shall be applied at a rate of 21 pounds
per 1,000 square yards.
(c)
Permanent cover (nonmowed areas). Seed mixture for permanent
grass cover shall consist of the following: tall fescue (70% by weight),
birdsfoot trefoil mixture (1/2 viking and 1/2 empire, norcen or leo,
20% by weight) and redtop (10% by weight). Seed shall be applied at
a rate of 10.5 pounds per 1,000 square yards.
(5)
Tunneling, boring and jacking.
(a)
The contractor shall comply with all applicable federal, state
and Borough ordinances, codes, statutes, rules and regulations and
affected jurisdictional bodies. For state highway areas, the contractor
shall comply with Pennsylvania Department of Transportation Publication
408 specifications.
(b)
Regardless of whether tunneling, jacking or boring is employed,
the contractor shall be responsible for construction of the various
pipelines true to line and grade and shall be held fully responsible
for protection against surface subsidence, damages or disturbances
to the satisfaction of the Borough.
(c)
The contractor shall be responsible for reimbursing all agencies
owning property where boring, jacking or tunneling is required for
any inspection and/or flagmen costs incurred and deemed necessary
by those agencies at any and all locations where work is performed
to ensure safe traffic conditions and safe conduct of work.
(d)
All sheeting, shoring, bracing, lining, etc., required for the
construction of tunnels, shafts, portals, etc., shall be furnished
and installed by the contractor. All work relative to the installation
of liners and carrier pipes by means of jacking, boring or tunneling
shall be performed in accordance with regulation set forth under Subpart
S, "Tunnels and Shafts, Caissons, Cofferdams and Compressed Air,"
published as a part of the Safety and Health Regulations for Construction
by the U.S. Department of Labor.
(e)
Where tunneling is employed, the tunnel line plate shall be
designed by the contractor for the particular diameter or shape elected.
The plate shall be designed and assembled in accordance with the manufacturer's
published recommendations for the material encountered in the tunnel
excavation.
(f)
Tunnels shall be carefully excavated by experienced tunnel workers
and shall be trimmed to such a size and shape as to allow the proper
placing of the pipelines to the proper alignment and grade. Caution
shall be exercised in excavating tunnels so that voids outside the
casing and disturbance of the surrounding material are kept to a minimum.
Large voids are to be filled immediately with grout.
(g)
The contractor shall excavate the tunnel and support the surrounding
earth so that no movement of the earth over or adjacent to the work
shall occur at any time. If due to unforeseen conditions or otherwise
any such movement does occur, the Borough may order the contractor
to stop any and all work except that which assists in making the tunnel
secure and in preventing further movement of the ground over or adjacent
to the work.
(h)
Where boring and jacking is employed, the casing pipe shall
at all times follow behind the boring auger at a distance no greater
than two feet. The method of auguring the entire hole and then pushing
the pipe will not be permitted.
(i)
Steel casing pipe shall be new, shall be visibly sound and round,
and shall be suitable for the service intended. All joints shall be
of metal and of leakproof construction, designed to carry the earth
load and any other pressures present. It shall be welded steel pipe
(full circumference welded joints) manufactured and tested in accordance
with the industry-wide accepted ASTM standards. The steel pipe shall
have a minimum yield strength of 35,000 pounds per square inch.
(j)
Minimum casing wall thickness shall be as follows:
|
Nominal Diameter of Casing
| ||
|---|---|---|
|
Uncoated and Unprotected
(inches)
|
Pipe in Inches
| |
|
0.250
|
10 and under
| |
|
0.250
|
12 and 14
| |
|
0.312
|
16
| |
|
0.312
|
18
| |
|
0.344
|
20 and 22
| |
|
0.375
|
24
| |
|
0.406
|
26
| |
|
0.438
|
28
| |
|
0.469
|
30
| |
|
0.500
|
32
| |
|
0.532
|
34 and 36
| |
(k)
The carrier pipe shall be adequately supported with stainless
steel casing spacers or approved equivalent. There shall be a maximum
of six feet of separation between casing spacers. Treated wood skids
are not permitted.
(l)
All boring and jacking shall be unclassified and no extra payment
will be made for rock, boulders, shale, timber, logs, old foundations,
masonry or other natural or artificial materials encountered in the
boring and/or jacking operations.[1]
(m)
When boring is employed, the contractor shall be responsible
for construction of the various crossings true to line and grade and
shall be held fully responsible for protecting against surface subsidence
damages or disturbances to adjacent property and facilities from his
construction operation and shall rectify to the satisfaction of the
Borough.
(n)
Should an obstruction or misalignment be encountered during
any boring or jacking so as to prevent continuation of operations,
the auger shall be removed and any excess pipe cut and capped. The
casing interior and any void spaces outside of the casing shall be
pressure-grouted, with a Borough-approved grout, completely to fill
all voids before establishing a new boring or jacking site.
(6)
Open excavation and backfill.
(a)
The limit of daily trench excavation shall be to a length of
pipe placement and backfilling that can be completed the same day.
(b)
All ductile iron pipe and reinforced concrete pipe may be installed
directly on exposed trench bottoms where no rock or other unyielding
material or where no soft unstable conditions exist.
(c)
Where the exposed trench bottom consists of rock or other unyielding
material, the trench shall be undercut a minimum of four inches and
the ductile iron or reinforced concrete pipe shall be installed on
six inches of a Borough-approved bedding material and at no additional
expense to the Borough.
(d)
When soft and/or unstable trench bottoms exist, the trench shall
be undercut and stabilized to the satisfaction of the Borough. Trench
bottoms shall be undercut at joints where pipe bells will occur to
assure that all pipe barrels are continuously supported for the entire
barrel length. If this method does not provide adequate pipe support,
as determined by the Borough, concrete caissons shall be installed
as required at no additional expense to the Borough.
(e)
All polyvinyl chloride pipe (PVC) shall, regardless of the character
of the exposed bottom, be installed on Borough-approved bedding material
of at least six inches. At the determination of the Borough, any of
the above methods for ductile iron or reinforced concrete pipe shall
apply to PVC pipe at no additional expense to the Borough.
(f)
The excavation material from the trench may be temporarily stored
along its alignment on rights-of-way obtained for construction purposes.
It may not, however, prohibit traffic flows along the streets and
roadways, access to private properties, or access to existing utility
lines by the respective utility companies. The excavated material
shall not obstruct or alter the flow of surface water runoff to drainage
facilities and ditches.
(g)
Along all pipelines, the backfill material placed above the
pipe zone shall be selected excavated material which shall be compacted
and placed in such a manner to avoid disturbance or displacement of
the pipe and other appurtenances. The backfill material shall be free
of bricks, concrete, trees, stumps, frozen or mucky material, excessive
amounts of rocks and other debris, and shall be mechanically compacted.
(h)
Backfill material placed in trenches located in an improved
area shall be one-hundred-percent stone backfill. "Improved areas"
are traveled ways, road shoulders and berms. The one-hundred-percent
stone backfill shall be placed in lifts not exceeding eight inches
in thickness and shall be thoroughly and mechanically compacted for
the full depth of the trench.
(i)
When the trench excavation is being backfilled, the disturbed
area shall be graded to final contours, and appropriate temporary
erosion and sediment pollution control measures/facilities shall be
installed.
(j)
All excess excavated material resulting from the construction
of the pipelines and appurtenances shall be disposed at a location
and in a manner determined by the contractor and at no additional
expense to the Borough.
(k)
The contractor shall schedule construction activities and provide
all required equipment, steel plates, cones, barricades and personnel
such that the backfilling of the trenches located along or crossing
streets, street berms, roadways, driveways or other traveled ways
results in resumption of normal traffic patterns immediately.
(7)
Compaction testing.
(a)
The contractor is informed that, in those areas where the excavated
material is utilized as backfill, the backfill shall achieve a density
of 95%, as determined by the Standard Method A, Proctor Test.
(b)
Tests will be performed in any area determined necessary by
the Borough. In the event that the placed backfill does not comply
with the ninety-five-percent density requirement, the work shall be
reexcavated, recompacted and retested at no additional expense to
the Borough.
(8)
Site safety.
(a)
Safety of the construction site shall be the sole responsibility
of the contractor.
(b)
All structure excavations and open trenches shall be constructed
in accordance with the rules and regulations set forth by the Occupational
Safety and Health Administration and the U.S. Department of Labor.
Methods of installation shall be compatible with assuring the protection
against disturbance and other personnel in accordance with the above-referenced
agencies.
(c)
Trenches at any and all locations where pedestrian or vehicular
traffic hazards would result shall not be left open during nonconstruction
hours, unless they are suitably covered with a steel plate which is
adequately anchored and reinforced to sustain pedestrian and/or vehicular
traffic loads which may be imposed. All excavations within road rights-of-way
shall be closed overnight and over weekends and marked with flashing
traffic markers.
(9)
Blasting. All blasting shall be performed in accordance with all
applicable federal, state and local laws, rules and regulations regarding
registration, transportation, storage, handling and otherwise using
explosives. Blasting permits are required to be obtained in advance
from the Borough.
C.
Site work and preparation.
(1)
Clearing and grubbing.
(a)
Certain work to be performed will require clearing. The contractor
shall cut, clear and remove all brush, sapling, scrub and other wild
growth along the route of the pipelines. No trees shall be cut, however,
without the specific approval and prior designation for cutting by
the Borough. It is the intent of these specifications to minimize
the removal of trees and, therefore, only those which will positively
prevent the application of reasonable construction methods and procedures
will be permitted to be removed.
(b)
Brush, scrub growth, stumps, saplings and tree limbs and trunks
so directed to be cut and removed shall be placed into piles and shall
be completely removed from the site of the work. No such debris shall
be included in any backfill and, as part of the cleanup work, shall
be required to be removed and transported away from the site.
(2)
Bedding and specially graded backfill material.
(a)
All pipeline bedding material, all material placed within the
pipe zone of trenches in which PVC pipe is constructed, and all material
placed above the trench bottom and below the concrete trench slab
(where trenches cross or are located within Borough streets or state
roads, shall be either pea gravel, two limestone or two gravel, complying
with the gradation and classification of the Pennsylvania Department
of Transportation.
(3)
Dewatering.
(a)
All excavation shall be dewatered thoroughly in advance of the
installation of any of the construction work; no facilities shall
be constructed in any excavation where water flows or is pooled or
where groundwater infiltration or surface water inflow is not immediately
removed.
(b)
Water which accumulates in the open trench shall be completely
removed by pumping before pipe placement and/or backfilling begins.
(c)
Where dewatering does occur, the contractor shall conduct those
operations in a manner which complies with regulations on the subject
of soil erosion and sedimentation control as promulgated by the Pennsylvania
Department of Environmental Protection. No such discharges shall be
permitted to erode or otherwise adversely affect any public or private
property, and all such discharges shall be trapped, settled, rough-filtered,
retained and/or checked (depending upon the clarity, turbidity, and
concentration of suspended solids) within such discharges allowable.
(4)
Dust and mud control on streets and other traveled ways.
(a)
Dust-control palliatives shall be utilized where and when necessary
to satisfactorily maintain roads, streets, berms and other traveled
ways for vehicular traffic. In addition, the accumulation of mud and/or
dirt from the excavation, backfill and trenching operations shall
be cleaned off the surfaces to properly maintain the roadway in a
condition satisfactory to the Borough.
(5)
Stream crossing.
(a)
Where water distribution system pipelines cross creeks or streams,
such crossing shall be accomplished by using ductile iron pipe encased
in a minimum of six inches of concrete all around the pipe, and fittings
conforming to the requirements of the appertaining sections of these
specifications.
(b)
The pipe shall be tied to eight inches of concrete blocks laid
on the trench bottom and shall be encased in concrete all around the
pipe. The concrete encasement shall be at least six inches thick.
The minimum depths of pipe, that the vertical distance between the
lowest elevation of the stream along the pipe alignment and the top
of the pipe, shall be three feet. Where rock is encountered within
the trench bottom, bedding material (as also specified herein) shall
be utilized.
(c)
The concrete encasement of the pipe shall extend between the
tops of the stream on creek banks or, where such banks are not evident,
a minimum distance of five feet each side beyond the normal stream
channel.
(d)
Waterline stream crossings shall extend from valve manhole to
valve manhole or valve and box. It may be required that valve manholes
be installed on each side of the stream crossing.
(e)
Backfill around the stream crossing shall consist of the excavated
material unless the same is deemed unsuitable by the Borough at the
time of excavation.
(f)
Disturbed bank areas shall be stabilized immediately upon completion
of the crossing.
(g)
As shown on the construction drawings, riprap shall be installed
to prevent erosion of the slopes, stone shall be minimum of 35 pounds
durable rock, dumped or hand placed to a minimum depth of 10 inches.
Installation of riprap shall be per PADEP requirements and regulations.
D.
Waterline.
(1)
General. All pipe shall be transported, unloaded, handled and installed
in strict accordance with the recommendations of the pipe manufacturer.
(2)
Ductile iron pipe and fittings.
(a)
Ductile iron pipe furnished shall be designed in accordance
with ANSI Standard A-21.50 and manufactured in accordance with ANSI
Standard A-21.51.
[1]
Mechanical joint water-main fittings with accessories, three-inch
through thirty-six-inch, shall be produced in the United States of
ductile iron in accordance with and meet all applicable terms and
provisions of standards ANSI/AWWA C-153/A-21.53 (current revisions).
Ductile iron mechanical joint fittings, three-inch through twenty-four-inch,
shall be rated for three-hundred-fifty-pounds-per-square-inch working
pressure. All ductile iron mechanical joint fittings, thirty-inch
through thirty-six-inch, and all sizes of mechanical joint fittings
with flange branches, shall be rated for two-hundred-fifty-pounds-per-square-inch
working pressure.
[2]
Fittings are double cement-lined and seal-coated in accordance
with standards ANSI/AWWA C-104/A-21.4 and meet the requirements of
NSF-61.
[3]
Fittings shall have distinctly cast on them the pressure rating
and the nominal diameter of the openings.
[4]
All fittings and accessories shall be of domestic manufacture.
The approved fitting manufacturers are Clow Pipe, Tyler Pipe, Union
Foundry or an approved equivalent.
[5]
All fittings and pipe installed exposed in buildings or structures
shall be flanged joints conforming to ANSI A-21.15. Fittings shall
be furnished to conform with the changes in horizontal and vertical
alignment indicated on the plans.
(b)
Pipe shall be furnished in ASTM special thickness Class 52.
Fittings shall be a minimum three-hundred-fifty-pounds-per-square-inch
pressure classification.
(c)
Ductile iron pipe and fittings used for waterlines shall be
double cement lined, and lined and coated with a standard thickness
bituminous material in accordance with ANSI/AWWA C-104/A-21.4, "Cement-Mortar
Lining for Ductile Iron and Gray Iron Pipe and Fittings for Water."
(d)
Pipe having damaged lining or coating shall be replaced, as
determined by the Borough's representative in the field, at no additional
cost to the Borough.
(e)
Installation procedures for ductile iron mains and their appurtenances
for water service shall also be in general conformance to AWWA C-600,
or latest revision. Unless otherwise approved by the Borough, all
waterlines shall be installed at a depth of 4.0 to 4.5 feet of cover
over the top of the pipe.
(f)
All water mains, including those not designed to provide fire
protection, shall be sized after a hydraulic analysis based on flow
demands, pressure requirements and future requirements.
(g)
The minimum size of water mains for providing fire protection
and serving fire hydrants shall be six inches in diameter. Larger-sized
mains will be required if necessary to allow the withdrawal of the
required fire flow while maintaining the minimum residual pressure
of 20 psig.
(h)
Dead ends shall be minimized by looping all mains whenever practical.
Where dead-end lines are necessary the lines shall be provided with
the appropriate flushing devices.
(i)
Water mains shall be installed at least 10 feet horizontally
from any existing or proposed sanitary sewer. The distance shall be
measured edge to edge.
[2]
When an existing sewer line is encountered and the waterline
is proposed and the horizontal separation cannot be met, the waterline
shall be poly-wrapped and the joints shall be concrete-encased, three
feet on each side of the joint at each joint. Whenever water mains
cross building drains, storm drains or sanitary sewers, the water
main shall be laid at such an elevation that the bottom of the water
main is 18 inches above the top of the drain or sewer. Where less
than 18 inches of vertical separation exists, the sewer line shall
be encased in concrete, 10 feet on either side of the water main,
and relocated in accordance with construction standard 24 in Appendix
A.[3]
[3]
Editor's Note: Appendix A is on file in the Borough office.
(3)
Restraints. Restrained joint gaskets (field-loc) shall be required
in all areas where the waterline will be installed in fill and/or
inside all casings and/or on slopes that are 20% or greater. Where
tees, valves and plugs are provided for future extensions, fittings
shall be secured with the use of a ductile iron restraint gland. Restraint
glands shall be used on all fittings that require a thrust restraint;
therefore, restraint glands and concrete shall be used. Retainer glands
shall be made in the United States of America of ductile iron only.
(a)
Glands shall be manufactured of ductile iron conforming to ASTM
A-536-80. Restraining devices shall be of ductile iron heat-treated
to a minimum hardness of 370 BHN. Dimensions of the gland shall be
such that it can be used with the standardized mechanical joint bell
and tee-head bolts conforming to ANSI/AWWA A-21.11 and ANSI/AWWA C-153/A-21.53
of the latest revision. Twist-off nuts shall be used to ensure proper
actuating of the restraining devices.
(b)
The mechanical joint restraint device shall have a working pressure
of at least 350 pounds per square inch in sizes four-inch through
sixteen-inch and 250 pounds per square inch of sizes eighteen-inch
through forty-eight-inch and a minimum safety factor of 2:1.
(c)
Twist-off nuts shall be standard on all sizes. The same size
socket used to tighten the T-bolts on the four-inch through twenty-four-inch
sizes shall be used to tighten and shear the twist-off nuts in all
sizes.
|
Nominal Pipe Size
(inches)
|
Number of Wedges
| |
|---|---|---|
|
4
|
2
| |
|
6
|
3
| |
|
8
|
4
| |
|
10
|
4
| |
|
12
|
6
| |
|
14
|
8
| |
|
16
|
10
| |
|
18
|
10
| |
|
20
|
12
| |
|
24
|
14
| |
|
30
|
18
|
|
The restraint gland shall be EBBA iron or approved equal.
|
(d)
Joint restraint for Tyton joint pipe and fittings shall be U.S.
Pipe's field-loc 350 gaskets, or approved equivalent. The gaskets
shall be accordance with the performance requirements of ANSI/AWWA
C-111/A-21.11, rubber-gasket joints for ductile-iron pipe and fittings.
(e)
Field-loc gaskets shall not be used on Tyton joint plugs.
(f)
Thrust restraints.
[1]
Concrete blocks shall be cast-in-place in accordance with the
Borough Engineer's approval. Such blocks shall be required to be poured,
after installation of the adjacent piping at all fittings installed
along the pipeline.
[2]
The four-thousand-pounds-per-square-inch concrete shall be placed
such that it is supported against undisturbed earth along the excavated
trench wall and the trench bottom and shall be thoroughly worked and
vibrated to ensure complete contact with the walls of the fittings
being restrained.
[3]
No trench backfill shall be placed at the locations of the thrust
blocks until 24 hours after placement, and/or until the Borough has
inspected the installation. Refer to cast-in-place concrete specification
for minimum strength of concrete.
[4]
Where existing conditions do not allow for the use of thrust
blocking, restraint fittings only shall be permitted. All other applications
shall be thrust-blocked and restraint glands installed.
(g)
Anchoring and blocking.
[1]
All bends in excess of 10°, plugs, caps, tees and wye branches
along pipelines shall be adequately blocked or anchored to prevent
the lines from pulling apart under pressure. Blocking shall be placed
between undisturbed earth and the fittings to be anchored. Blocking
shall be placed so that the fitting joints are accessible for repair.
[2]
Tie rods, clamps, collars, restrained joints and anchoring fittings
may be substituted in lieu of blocking after having received the approval
of the Borough.
(h)
Concrete work. The contractor shall take all necessary precautions
to ensure that concrete placed during hot or cold weather is not damaged
by the extremities of temperature. To this end, the contractor shall
place the concrete in accordance with the applicable portions of ACI
Standards 305 and 306. No concrete will be accepted which is frozen
or damaged due to extremes in weather.
(4)
Polyethylene encasement for ductile iron pipe/fittings.
(a)
Polyethylene encasement (polyethylene film in tube or sheet
form) shall be required around all ductile fittings (D.I.) and/or
in areas where corrosive soils are present.
(b)
The polyethylene film shall have a minimum nominal thickness
of 0.008 inch and shall be manufactured of virgin polyethylene material
conforming to the latest requirements of ASTM D-1248, "Polyethylene
Plastics Molding and Extrusion Materials."
(5)
Detectable Mylar marking tape. A detectable Mylar marking tape shall
be installed over all waterlines by the contractor. It shall be inductively
locatable and conductively traceable using standard pipe- and/or cable-locating
devices. Care will be taken to ensure that the buried marking tape
is Mylar-encased aluminum foil. The detectable marking tape will bear
the words "Caution — Water Line Buried Below." The printing
will be under Mylar so as to be readable through the clear Mylar.
Maximum spacing between the continuous warning message shall be 16
inches to 36 inches. The tape shall be highly visible color, and the
tape will be color-coded in accordance with the American Public Works
Association and Utility Location Coordination Council Standards and
will be a minimum of three inches in width. The detectable marking
tape will be buried one to two feet below finish grade as is practical
for optimum detectability. The tape should be placed into backfill
and allowed to settle into place in the backfill. The tape shall be
specially designed for prolonged underground use and shall be easily
detectable with an electronic locator. The detectable Mylar marking
tape shall be brought to finished grade at all valve box locations,
unless directed otherwise by the Borough.
(6)
Fire hydrants.
(a)
Fire hydrants installed shall meet or exceed all applicable
requirements and tests of the latest revisions of ANSI/AWWA Standard
C-502. Fire hydrants shall meet all test requirements and be listed
by Underwriters Laboratories, Inc. A hydrant shall be installed complete
where shown on the drawings and as approved by the Borough. The installation
shall be in general accord with construction standard 26 in Appendix
A.[4] In addition, fire hydrants shall meet the following:
[1]
One anchor tee with a six-inch diameter branch.
[2]
One six-inch gate valve installed directly onto the anchor tee.
[3]
One six-inch-diameter anchor coupling, length as required, 12
inches' minimum separation between the valve and the hydrant. Where
anchor-coupling length exceeds 10 feet, restraint glands shall be
installed. All pipe shall be ductile iron pipe.
[4]
Concrete blocking (as approved by the Borough).
[5]
One fire hydrant complying with AWWA Specification C-502, "Dry-Barrel
Fire Hydrant." It shall be the self-oiling, dry-bonnet type with O-ring
seal, the high-pressure type designed to operate under a live pressure
of 250 pounds per square inch, and "traffic" type to provide a break
flange and stem for protection against water loss if the hydrant barrel
is broken. It shall meet the following requirements:
[a]
Fire hydrants shall be rated for a working pressure
of 250 psig (1725 kPa) and subjected to a hydrostatic test at the
factory of at least 300 psig.
[b]
Fire hydrants shall be of the compression type,
opening against the pressure and closing with the pressure.
[c]
Fire hydrants shall have a minimum five-and-one-fourth-inch
main valve opening and a minimum inside lower/upper barrel diameter
(I.D.) of seven inches to assure maximum flow performance. Pressure
loss at 1,000 GPM shall not exceed the following values: four-inch
pumper nozzle 2.70 pounds per square inch; four-and-one-half-inch
pumper nozzle 2.50 pounds per square inch.
[d]
Fire hydrants shall be three-way in design, having
one four-and-one-fourth-inch steamer nozzle with national standard
threads and two two-and-one-half-inch hose nozzles with hose gauge
8-300 threads. Nozzles shall thread counterclockwise into hydrant
barrel utilizing O-ring seals. A suitable nozzle lock shall be in
place to prevent inadvertent nozzle removal.
[e]
The bonnet assembly shall provide an oil reservoir
and lubrication system that automatically circulates lubricant to
all stem threads and bearing surfaces each time the hydrant is operated.
This lubrication system shall be sealed from the waterway and any
external contaminants by use of O-ring seals. An anti-friction washer
shall be in place above the thrust collar to further minimize operating
torque. The oil reservoir shall be factory-filled with a low viscosity,
FDA-approved nontoxic oil lubricant which will remain fluid through
a temperature range of -60° F. to +150° F.
[f]
The operating nut shall be a one-piece design,
manufactured of ASTM B-584 bronze. It shall be pentagon/square in
shape, and the nut dimensions shall be as specified by the end-user.
The operating nut shall be affixed to the bonnet by means of an ASTM
B-584 bronze hold-down nut. The hold-down nut shall be threaded into
the bonnet in such a manner as to prevent accidental disengagement
during the opening cycle of the hydrant. The use of Allen-head set
screws as a means of retention is unacceptable. A resilient weather
seal shall be incorporated into the hold-down nut, for the purpose
of protecting the operating mechanism from the elements.
[g]
The direction of the opening shall be counterclockwise.
An arrow shall be cast on the bonnet flange to indicate the specified
opening direction.
[h]
The hydrant bonnet shall be attached to the upper
barrel by not less than eight bolts and nuts and sealed by an O-ring.
[i]
Hydrants shall be a "traffic-model" having upper
and lower barrels joined at the ground line by a separate and breakable
"swivel" flange providing 360° rotation of upper barrel for proper
nozzle facing. This flange shall employ not less than eight bolts.
The safety flange segments shall be located under the upper barrel
flange to prevent the segments from falling into the lower barrel
when the hydrant is struck. The pressure seal between the barrels
shall be an O-ring. The proper ground line shall be cast clearly on
the lower barrel and shall provide not less than 18 inches of clearance
from the center line of the lowest nozzle to the ground.
[j]
The operating stem shall consist of two pieces,
not less than one-and-one-fourth-inch diameter (excluding threaded
or machined areas) and shall be connected by a stainless steel safety
coupling. The safety coupling shall have an integral internal stop
to prevent the coupling from sliding down into the lower barrel when
the hydrant is struck. Screws, pins, bolts or fasteners used in conjunction
with the stem couplings shall also be stainless steel. The top of
the lower stem shall be recessed two inches below the face of the
safety flange to prevent water hammer in the event of a "drive over"
where a vehicle tire might accidentally depress the main valve.
[k]
The lower barrel shall be an integrally cast unit.
The use of threaded-on or mechanically attached flanges is deemed
unacceptable. The hydrant bury depth shall be clearly marked on the
hydrant lower barrel.
[l]
Composition of the main valve shall be a molded
rubber having a durometer hardness of 95 +/- 5 and shall be reversible
in design to provide a spare in place. Plastic (polyurethane) main
valves are unacceptable. The main valve shall have a cross section
not less than one inch.
[m]
Hydrants shall be equipped with two drain valves
which drain the barrel when the hydrant is closed and seal shut when
the hydrant is opened. These drain valves shall be an integral part
of the one-piece bronze upper valve plate. They shall operate without
the use of springs, toggles, tubes, levers or other intricate synchronizing
mechanisms.
[n]
The upper valve plate, seat ring and drain ring
(shoe bushing) must be ASTM B-584 bronze and work in conjunction to
form an all-bronze drainway. A minimum of two internal and two external
drain openings are required. Drains ported through an iron shoe must
be bronze-lined.
[o]
The bronze seat ring shall thread into a bronze
drain ring (or shoe bushing), providing a bronze-to-bronze connection.
Seat rings shall be O-ring pressure-sealed.
[p]
The shoe inlet size and connection type shall be
as specified (flanged, MJ, etc.), having ample blocking pads for sturdy
setting, and the MJ connection must have two strapping lugs to secure
the hydrant to piping. A minimum of six bolts and nuts is required
to fasten the shoe to the lower barrel.
[q]
The interior of the shoe, including the lower valve
plate and stem cap nut, shall have a protective coating that meets
the requirements of AWWA C-550. If a stem cap nut is utilized, it
must be locked in place by a stainless steel lock washer or similar
noncorrosive device that will prevent the cap nut from backing off
during normal use.
[r]
Hydrants shall be warranted by the manufacturer
against defects in materials or workmanship for a period of 10 years
from the date of manufacture.
[s]
Hydrants shall be Mueller Model A-423 or approved
equal.
[t]
Depth of bury shall be 4 1/2 feet.
[v]
Fire hydrants shall be located as shown or as directed
and in a manner to provide complete accessibility, and also in such
a manner that the possibility of damage from vehicle or injury to
pedestrians will be minimized. The arrangements and details of construction
shall conform to those shown on construction standard 26 in Appendix
A.[6]
[6]
Editor's Note: Appendix A is on file in the Borough office.
[w]
Fire hydrants shall be spaced to provide a minimum
of 500 feet radius of coverage from each fire hydrant or as deemed
necessary by the Borough.
[x]
Each hydrant shall be connected to the main with
a six-inch ductile branch controlled by an independent six-inch gate
valve, except as otherwise directed. Each hydrant lateral valve shall
be fastened to the main with a special adapter, special hydrant tee
or by suitable cable, harness or tie rods.
[y]
A stone and concrete foundation, at least six-inches-thick
and 18 inches square, shall be placed underneath the base of the hydrant.
This foundation shall be placed on a firm subbase and shall be level
so as to support the underbase of the hydrant. The hydrant base shall
be braced and blocked, as indicated in construction standard 26 in
Appendix A.[7] It is of utmost importance that solid bearing be obtained
from the blocking and that such blocking be completely adequate.
[7]
Editor's Note: Appendix A is on file in the Borough office.
[z]
The space around the slabs and above the base of
the hydrant to a height of at least 18 inches and a distance of at
least 12 inches from the hydrant around the entire circumference shall
be filled with broken stone or gravel absolutely clean, not less than
3/4 inch in size. Not less than 12 cubic feet of broken stone or gravel
shall in all cases extend at least six inches above the waste opening
in the hydrant.
[aa]
In locations where the hydrants are to be placed
in a sloping area, a clear area shall be provided in back of and along
the sides of the fire hydrants, and the earth shall be supported by
an adequate stone wall on all three sides.
[4]
Editor's Note: Appendix A is on file in the Borough office.
(b)
In general, all fire hydrants shall be set plumb with the pumper
nozzle facing the roadway and with the center of the lowest outlet
not less than 18 inches above the finished surrounding grade and the
operating nut not more than 48 inches above the finished surrounding
grade.
(c)
One hydrant wrench, as approved by the Borough, shall be furnished
to the Borough when less than five hydrants are installed. When five
or more hydrants are installed, two hydrant wrenches, as approved
by the Borough, shall be furnished. All wrenches supplied shall be
heavy-duty.
(7)
Resilient wedge gate valves — four-inch to twelve-inch.
(a)
The resilient seat gate valves shall fully comply with the latest
revision of AWWA C-509 and shall also be UL-listed and FM-approved.
The valves shall be tested and certified to ANSI/NSF 61.
(b)
The valve shall have a two-hundred-fifty-pound-force-per-square-inch-gauge
working pressure. Each valve shall be factory seat tested to 250 psig
and shell tested to 500 psig.
(c)
The valve type shall be NRS (nonrising stem).
(d)
The valve shall have an arrow cast on the operating nut showing
opening direction. The direction of opening shall be counterclockwise.
(e)
The NRS valves shall be provided with a two-inch square operating
nut. The bolt that attaches the operating nut to the stem shall be
recessed into the operating nut so as not to interfere with valve
wrench operation.
(g)
The valve stem shall be made of bronze ASTM B-132 alloy C-67600
bar stock material. The stem shall have at least one "anti-friction"
thrust washer above and below the stem collar to reduce operating
torque. The design of the NRS valve stem shall be such that, if excessive
input torque is applied, stem failure shall occur above the stuffing
box at such a point as to enable the operation of the valve with a
pipe wrench or other readily available tool. The stem material shall
provide a minimum seventy-thousand-pounds-per-square-inch tensile
strength with fifteen-percent elongation and yield strength of 30,000
pounds per square inch. Valves with two-piece stem collars do not
meet the requirements of AWWA C-509 and are unacceptable.
(h)
The NRS valves shall have a stuffing box that is O-ring sealed.
Two O-rings shall be placed above and one O-ring below the stem thrust
collar. The thrust collar shall be factory-lubricated. The thrust
collar and its lubrication shall be isolated by the O-rings from the
waterway and from outside contamination, providing permanent lubrication
for long-term ease of operation. Valves without a stuffing box are
unacceptable. Valves without at least three stem O-rings are also
unacceptable.
(i)
The valve body, bonnet, stuffing box and disc shall be composed
of ASTM A-126 Class B gray iron or ASTM A-395 or A-536 ductile iron.
The body and bonnet size shall also adhere to the minimum wall thickness
as set forth in Table 2, § 4.3.1 of AWWA C-509. Wall thickness
less than those in Table 2 are not acceptable.
(j)
The valve disc and guide lugs must be fully (100%) encapsulated
in SBR ASTM D-2000 rubber material (or EPDM as a specified alternative).
The peel strength shall not be less than 75 pounds per inch. Guide
caps of an Acetal bearing material shall be placed over solid guide
lugs to prevent abrasion and to reduce the operating torque. Guide
lugs placed over bare metal are not acceptable.
(k)
The valves shall have all internal and external ferrous surfaces
coated with a fusion-bonded thermosetting powder epoxy coating of
ten-mils nominal thickness. The coating shall conform to AWWA C-550.
(l)
The valves shall be warranted by the manufacturer against defects
in materials or workmanship for a period of 10 years from the date
of manufacture. The NRS valves shall be Mueller A-2360 series or approved
equal.
(8)
There shall be a main-line gate valve installed immediately following
each fire hydrant assembly. Also, a main-line gate valve shall be
installed immediately prior to the main-line tee at all cul-de-sac
loops.
(9)
Valve boxes. Provide cast iron valve boxes of two-piece or Buffalo
Type for valves up to twelve-inch and of three piece for valves up
through twenty-inch buried in ground. Valve box design of adjustable
two-section screw-type telescoping column or three-section with separate
base column, inside diameter of 5 1/4 inches, and furnished with
a cover marked "WATER." Hot coat inside and out with tar or asphalt
compound.
(10)
Tapping sleeves.
(a)
A connection larger than one inch to the existing water main
is the contractor's responsibility. The Borough will be responsible
to make connections of 3/4 inch and one inch only.
(b)
Connection to the existing water main requires the approval
and direct observation of a Zelienople Borough representative. The
contractor shall schedule an inspection with the Borough 72 hours
in advance of the work being performed.
(d)
All tapping assemblies shall be pressure-tested and witnessed
by the Borough's representative prior to use to assure the integrity
of the connection. The tapping sleeves and valves shall be tested
at not less than four-hundred-pounds-per-square-inch hydrostatic pressure
and be suitable and guaranteed to stand a working pressure of 200
pounds per square inch.
(e)
All tapping sleeves shall be installed at a minimum of three
feet from pipe joints. The pipe coupon shall be given to the Borough's
representative. Provide minimum three-thousand-pounds-per-square-inch
concrete thrust restraints.
(11)
Resilient wedge tapping valves — two-inch to twelve-inch.
(a)
The resilient seat gate valves shall fully comply with the latest
revision of AWWA C-509 and shall also be UL-listed and FM-approved.
The valves shall be tested and certified to ANSI/NSF 61.
(b)
The valve shall have a two-hundred-fifty-pound-force-per-square-inch-gauge
working pressure. Each valve shall be factory seat tested to 250 psig
and shell tested to 500 psig.
(c)
The valve type shall be NRS (nonrising stem).
(d)
The valve shall have an arrow cast on the operating nut showing
opening direction. The direction of opening shall be counterclockwise.
(e)
The NRS valves shall be provided with a two-inch square operating
nut. The bolt that attaches the operating nut to the stem shall be
recessed into the operating nut so as not to interfere with valve
wrench operation.
(g)
The valve stem shall be made of bronze ASTM B-132 alloy C-67600
bar stock material. The stem shall have at least one "anti-friction"
thrust washer above and below the stem collar to reduce operating
torque. The design of the NRS valve stem shall be such that, if excessive
input torque is applied, stem failure shall occur above the stuffing
box at such a point as to enable the operation of the valve with a
pipe wrench or other readily available tool. The stem material shall
provide a minimum seventy-thousand-pounds-per-square-inch tensile
strength with fifteen-percent elongation and yield strength of 30,000
pounds per square inch. Valves with two-piece stem collars do not
meet the requirements of AWWA C-509 and are unacceptable.
(h)
The NRS valves shall have a stuffing box that is O-ring sealed.
Two O-rings shall be placed above and one O-ring below the stem thrust
collar. The thrust collar shall be factory-lubricated. The thrust
collar and its lubrication shall be isolated by the O-rings from the
waterway and from outside contamination, providing permanent lubrication
for long-term ease of operation. Valves without a stuffing box are
unacceptable. Valves without at least three stem O-rings are also
unacceptable.
(i)
The valve body, bonnet, stuffing box and disc shall be composed
of ASTM A-126 Class B grey iron or ASTM A-395 or A-536 ductile iron.
The body and bonnet size shall also adhere to the minimum wall thickness
as set forth in Table 2, § 4.3.1 of AWWA C-509. Wall thickness
less than those in Table 2 are not acceptable.
(j)
The valve disc and guide lugs must be fully (100%) encapsulated
in SBR ASTM D-2000 rubber material (or EPDM as a specified alternative).
The peel strength shall not be less than 75 pounds per inch. Guide
caps of an Acetal bearing material shall be placed over solid guide
lugs to prevent abrasion and to reduce the operating torque. Guide
lugs placed over bare metal are not acceptable.
(k)
The valves shall have all internal and external ferrous surfaces
coated with a fusion-bonded thermosetting powder epoxy coating of
ten-mils nominal thickness. The coating shall conform to AWWA C-550.
(l)
The valves shall have an inlet flange conforming to ANSI B-16.1
Class 125 for attachment to a tapping sleeve or cross. In addition,
the valve inlet flange shall have a machined projection or raised
face complying with MSS SP-60 for accurate alignment to the mating
recess in the tapping sleeve flange. The seat opening of the tapping
valves shall be at least 0.30 inch larger than the nominal pipe size
to permit full-size shell cutters.
(m)
The valves shall be warranted by the manufacturer against defects
in materials or workmanship for a period of 10 years from the date
of manufacture. The NRS valves shall be Mueller T-2360 series or approved
equal.
(12)
Blowoff assemblies. Blowoff connections shall be installed at
the ends of lines, on culs-de-sac and where directed by the Borough.
(13)
Copper loop.
(b)
The loop shall consist of a main-line tee with two two-inch
iron pipe threaded (I.P.T.) plugs. Two two-inch iron pipe threaded
to compression adaptors, Mueller H-15428 or approved equal.
(c)
Each service connection shall consist of the following (typical):
Two two-inch iron pipe threaded to compression adaptors, Mueller H-15428
or approved equal.
[1]
One two-inch-by-two-inch-by-three-fourths-inch female iron pipe
threaded brass tee meeting or exceeding ASTM B-584.
[2]
One three-fourths-inch pipe threaded to compression adaptor,
Mueller H-15428 or approved equal.
[3]
Ten feet of three-fourths-inch type-K copper.
[4]
One ball curb stop, Mueller B-25209 or approved equal.
[5]
One curb box, Tyler 94E.
[6]
One four-inch-by-four-inch-by-eight-foot Wolmanized® marking
stake.
(d)
The blowoff assembly shall be located at the property line closest
to the above-mentioned main-line tee. The blowoff assembly shall consist
of the following:
[1]
Three two-inch ball curb valves, Mueller B-25172 or approved
equal.
[2]
Four two-inch-by-one-foot red brass nipples meeting or exceeding
ASTM B-687.
[3]
One two-inch-by-two-inch-by-two-inch female iron pipe threaded
tee meeting or exceeding ASTM-584.
[4]
One two-inch ninety-degree red brass elbow with a one-eighth-inch-diameter
drain hole.
[5]
One two-inch red brass vertical nipple, with a minimum length
of three feet six inches.
[6]
One two-inch red brass coupling with female iron pipe thread
meeting or exceeding ASTM B-584.
[7]
One two-inch PVC, Schedule 40, male threaded plug.
[8]
Four valve boxes, Tyler 664-S or Bingham and Taylor 4905, size
No. 22.
(14)
End blowoff.
(a)
A typical end blowoff shall consist of the following:
[1]
One two-inch female iron pipe threaded plug.
[2]
Two two-inch-by-one-foot red brass nipples meeting or exceeding
ASTM B-687.
[3]
One ball curb valve, Mueller B-20283 or approved equal.
[5]
One two-inch red brass vertical nipple, with a minimum length
of three feet six inches.
[6]
One two-inch red brass coupling with female iron pipe thread
meeting or exceeding ASTM B-584.
[7]
One two-inch PVC Schedule 40 male threaded plug.
[8]
Two valve boxes, Tyler 664-S or Bingham and Taylor 4905, size
No. 22 or approved equal.
(15)
Copper service line fittings.
(a)
All underground service line valves and fittings shall be in
accordance with ANSI/AWWA C-800, "Underground Service Line Valves
and Fittings." The metal alloy shall be red brass of 85-5-5 content.
All underground fittings shall be of the conductive compression type;
flared fittings shall not be permitted.
(b)
Corporation stops: Ford Meter Box Co., FB1000G; Mueller Company,
or approved equal.
(c)
Curb stops: Ford Meter Box Co., Inc., Z41-333, or approved equal.
(d)
Curb boxes: arch pattern with a one-inch upper section for curb
stops one inch or less, or two-inch upper section with a two-inch
curb stop. Provide Ford, Mueller or equal.
(e)
Service saddle: Service saddles shall be Ford Meter Box Co.
Type FC-101 with stainless steel band and epoxy coating.
(16)
Service line repairs. Any existing service line requiring repairs
shall be replaced in full from the curb box to the structure for distances
up to and including 100 feet in length unless otherwise approved by
the Borough. The curb box and curb stop may also require replacement
at the time of repair, as deemed necessary by the Borough.
(17)
Inspection. All domestic service lines (residential), including
new installation, the repair/replacement or the relocation of an existing
domestic service line, shall be subjected to inspection by the Borough.
The domestic service line shall remain exposed until a site inspection
has been performed. Notify the Borough at least 24 hours in advance
of requested inspection.
(18)
Domestic water meter.
(a)
All domestic water meters (master meters only) are supplied
by the Borough and are included in the cost of the tapping fee/facility
fee. Under no circumstance shall water service be initiated prior
to the installation of the water meter. No meter shall be delivered
or install until all applicable tapping fees/facility fees have been
paid. The Borough requires a minimum of 48 hours' advance notice prior
to scheduling the meter installation.
(b)
The meter valve shall be located immediately inside of the structure.
The valve shall be of brass, meeting or exceeding ASTM B-584. The
valve shall be female iron pipe thread on the outlet side, with the
inlet side flared. The valve shall open counterclockwise.
(19)
Backflow preventor.
(a)
All domestic, fire line and irrigation services shall include
a backflow prevention device. All backflow devices shall be tested
upon initial installation, repair and/or replacement by a Pennsylvania
state-certified inspector. Test forms are available through the Borough.
(b)
Residential and multifamily services shall use a double-check
valve assembly. The double check valve shall be a Watts No. 007 or
an approved equal.
(c)
All other services require the use of a reduced pressure backflow
assembly (R.P.B.A.), as manufactured by Watts series 909 or an approved
equal.
(20)
Water meter pits and vaults.
(a)
For services that require more than one union or are ductile
iron and over 200 feet from the public right-of-way to the structure,
a meter pit or meter vault shall be required. The costs associated
with the meter pit/meter vault is the responsibility of the applicant
requesting service. The meter pit/meter vault shall not be located
within the public right-of-way.
(b)
All mobile homes shall have a meter pit, regardless of the length
of service and number of unions.
(c)
When a meter pit/meter vault is required and the size of the
domestic meter is 3/8 inch by 3/4 inch, full 3/4 inch or one inch,
an eighteen-inch diameter thermalcoil meter box is required. The meter
pit shall be manufactured by Mueller/McCullough or an approved equal.[10]
(d)
For services requiring a meter 1 1/2 inch or larger, a
meter vault shall be installed. The vault shall be sized by the applicant
requesting service.
(e)
The location of the remote meter-reading device shall be approved
by the Borough. A meter pit/meter vault with the meter-reading device
built into the lid shall be clear of all obstructions and remain accessible
at all times. It is the customers' responsibility to ensure access
to the device, including in inclement weather. If the device is inaccessible,
the customer will be notified and the obstruction removed within 48
hours.
(21)
Pressure and leakage tests — ductile iron pipe.
(a)
Water supply for pressure testing.
[1]
The contractor shall be responsible for providing the quantity
and quality of water necessary for proper pressure testing of pipe.
At the option of the Borough, the contractor shall reimburse the Borough
directly for all water used, at the current usage rate.
[2]
The contractor shall be responsible for coordinating and transporting
the supply of water from the Borough's existing distribution system
supply points to the various pressure test locations.
[3]
Water supply for waterline testing shall be potable water. Water
supply for gravity sanitary sewer, force mains or other nonpotable
waterlines, shall be free of sand, mud, solids, oil, acids and any
other deleterious material.
(b)
All pressure pipelines shall be tested by the contractor in
a manner satisfactory to and witnessed by the Borough. The contractor
shall furnish all equipment, apparatus, temporary blocking, pumps,
taps and gauges to conduct the following tests:
[1]
The section under test shall be filled with water and all air
expelled from the line and maintained full of water for a period of
not less than 24 hours.
[2]
The pressure and leakage tests shall be conducted concurrently,
and consist of raising the water pressure (based on the elevation
of the lowest point of the section under test and corrected to the
gauge elevation) to a pressure in pounds per square inch numerically
equal to 1.5 times the normal working pressure or 50 pounds greater
than the normal working pressure of the pipe, whichever is greater,
and maintaining such pressure for a period of two hours.
[3]
For all piping at the end of the test period, the section test
will be accepted if the total leakage is not greater than 10 gallons/inch
diameter/mile/24 hours. Leakage shall be defined as the quantity of
water that must be supplied into the newly laid pipe, or any valve
section thereof, to maintain pressure after the pipe has been filled
with water and the air in the pipeline has been expelled.
|
L =
|
S D ÷ P
133,200
|
|
Where:
| ||||
|---|---|---|---|---|
|
L
|
=
|
Allowable leakage in gallons per hour
| ||
|
D
|
=
|
Nominal diameter of pipe in inches
| ||
|
P
|
=
|
Average test pressure in pounds per square inch gauge
| ||
|
S
|
=
|
Length of pipe in feet
| ||
[4]
If the section fails to pass the pressure and leakage tests,
the contractor shall do everything necessary to locate, uncover and
repair or replace the defective pipe, fittings or joints; all at his
own expense and without extension of time for completion of the work.
Additional test and repairs shall be made until the section passes
the specified test.
[5]
All visible leaks are to be repaired regardless of whether or
not the pipe meets the test requirements.
[6]
All testing shall be made from valve to valve (maximum) throughout
the system to ensure the proper operation of each valve.
(22)
Disinfection.
(a)
All potable waterlines and piping shall be sterilized by the
use of chlorine or chlorine-compound tablets in such amounts as to
produce a concentration of 50 milligrams per liter. Chlorinated water
shall be retained in the pipe long enough to destroy all non-spore-forming
bacteria. This period shall be at least 24 hours and preferably longer,
as may be directed. After the chlorinated water has been retained
for the required time, disinfection shall conform to AWWA Standard
C-651, "Standard for Disinfecting Water Mains."
(b)
Following disinfection, all treated water shall be thoroughly
flushed from the pipe until the water through its entire length shall,
upon test, be proven bacteriologically safe. The waterline shall remain
off during this period.
(c)
Contractor shall be responsible for properly disposing of all
chlorinated water in accordance with all local, state and federal
regulations.
(d)
The following number of five-gram tablets shall be placed in
each 18 feet length of pipe:
|
Diameter Pipe
(inches)
|
Number of 5g Tablets per 18 feet Length of Pipe
| |
|---|---|---|
|
4
|
1
| |
|
6
|
1
| |
|
8
|
2
| |
|
10
|
3
| |
|
12
|
4
| |
|
16
|
6
|
(e)
The tablets shall be attached to the top of the inside of the
pipe by utilizing an adhesive material that is approved for contact
with potable water under the requirements of NSF Standard 61. Filling
of the completed pipeline with water shall be accomplished at a rate
which will assure a maximum velocity of one foot per second so that
the tablets do not become displaced. Retention time after filling
of the main, to accomplish disinfection, shall be a minimum of 24
hours. If the water temperature is less than 45° F., the water
shall remain in the pipe for at least 48 hours.
(f)
After the time of retention has been achieved, the water shall
be flushed from within the pipe until chlorine concentrations are
no higher than one part per million (ppm).
(g)
The Borough will employ a competent independent commercial testing
laboratory to perform bacteriological tests to assure the effectiveness
of the disinfection operations. At least one sample shall be obtained
from each end of the constructed pipelines and branches and such additional
samples as directed by the Borough. All sampling and analyses shall
be performed in accordance with the procedures set forth in standard
methods and in AWWA C-601.
(23)
Contractor not to operate existing valves and/or other existing
system appurtenances. The contractor shall schedule and coordinate
all construction activities and shall cooperate with the Borough's
operating personnel such that a minimum of interrupted service results.
The contractor shall not operate existing system valves, hydrants
or other appurtenances at any time, but when the same is needed to
facilitate and accommodate construction, the contractor shall request
such operation from the Borough. The contractor shall provide the
Borough with reasonable advance notice for such assistance, however.
(24)
Waterlines to be abandoned. All existing waterlines that are
designated to be abandoned shall be removed; capping or plugging the
existing line(s) shall not be permitted. All valves, fittings and
pipe shall be removed and disposed of at the contractor's expense.
(25)
Abandoning taps. When a domestic service line/tap or a testing
port two inches and smaller in diameter will be abandoned, the corporation
stop shall be removed from the water main. A plug shall be installed.
The plug shall be brass, with a square head and shall have AWWA tapered
threads. The plug shall be Mueller H-1003, or approved equal.
(26)
Abandoning service lines larger than two inches. When a service
line (fire, domestic or temporary) is abandoned, the service line
shall be disconnected at the water main. The main-line tee or the
tapping valve shall be plugged. A Class 350, mechanical joint plug
shall be installed with blocking and anchoring. The tapping valve
shall remain closed. Any fire hydrants removed from service shall
be returned to the Borough.
Sidewalks (concrete). All sidewalks shall be constructed in accordance with Chapter 232, Streets and Sidewalks, of the Borough's Code.
A.
General requirements. All driveways shall be located, designed, constructed,
and maintained in such a manner as not to interfere or be inconsistent
with the design, maintenance and drainage of the street.
B.
General location restrictions. Access driveways shall be permitted
at locations in which:
(1)
Sight distance is adequate to safely allow each permitted movement
to be made into or out of the access driveway.
(2)
The free movement of normal highway traffic is not impaired.
(3)
The driveway will not create a hazard.
(4)
The driveway will not create an area of undue traffic congestion
on the highway.
C.
Grade. Driveways shall be constructed to conform to the grade of
the finished shoulders. All descending or ascending grades of driveways
shall begin at the street right-of-way. No stormwater shall be permitted
to drain onto Borough roadways.
A.
All guide rails shall be constructed in accordance with current
PennDOT criteria.
A.
General conditions.
(1)
All street excavation within Borough rights-of-way or easements shall
require a road opening permit.
(2)
No street opening shall extend across more than half of the cartway
at a time. No street shall be closed at any time without prior approval
from the Borough.
(3)
Through-way traffic should be maintained whenever possible.
(4)
Access to driveways and/or buildings located within the work zone
shall be maintained at all times.
(5)
No more than 250 linear feet of excavation shall be opened at any
one time.
(6)
Traffic control shall be maintained in accordance with Pennsylvania
Department of Highways Publication 203. The permittee shall furnish
and maintain such signs, barricades, lights and flagpersons as may
be necessary to provide a safe and compliant work zone. The Borough
may require a separate traffic control plan under special circumstances.
(7)
Provisions shall be made to accommodate stormwater runoff at all
times. The work shall not be permitted to interfere with the normal
flow of surface or subsurface water.
(8)
Future maintenance of any area disturbed as a result of the installation
shall be the responsibility of the permittee during the first two
years after completion.
B.
Pavement cuts. Open cutting of any road surface is not permitted
unless authorized by the Borough Engineer.
(1)
Cuts in the bituminous surface shall be a neat straight line the
entire length and width of the trench using a concrete saw. Cuts through
cement concrete shall be made to a sufficient depth to enable the
removal of the concrete in a clear straight break.
(2)
All excavated material should be stored in such a manner as to not
interrupt pedestrian or automobile traffic. Pedestrian crosswalks
and sidewalks shall be kept clear at all times. Loose material shall
be promptly cleaned from the streets and sidewalks using appropriate
measures.
(3)
Special backfill requirements may be set by the Borough Engineer.
Backfill requirements will be determined at the time of application.
(4)
Restoration of asphalt pavement.
(a)
Temporary pavement shall consist of the appropriate compacted
backfill material and topped with not less than eight inches of cold
patch. The temporary pavement shall be replaced with the permanent
repair immediately upon suitable weather conditions or the work is
completed.
A.
Monuments. All developments shall be required to place at least two
new monuments. All new monumentation shall be located in open space
areas with clear views to the atmosphere for GPS uses. The monuments
shall be a Berntsen sectional rod monument three-eighths-inch diameter
or equal so as to accept a Zelienople Borough monument cap and bench
mark access cover in accordance with construction standard 9 in Appendix
A.[1] Monuments shall be accompanied by a letter of certification
from a professional land surveyor.
[1]
Editor's Note: Appendix A is on file in the Borough office.
B.
Markers. Markers shall be iron pins or pipes at least 1/2 inch in
diameter and not less than 20 inches in length, and markers shall
be located on all point of curves and point of tangent or roadway.
Markers must be stable in all three dimensions.
C.
Detection. Monuments and markers shall be detectable with conventional
ferrous metal or magnetic locators.
D.
Submission requirements. No private or public improvements shall be accepted by the Borough until all required monuments have been set and as-built drawings have been submitted and certified by a professional land surveyor, three paper copies (24 inches by 36 inches) and one Mylar copy. All as-built drawings shall be submitted electronically in accordance with the digital submission requirements [§ 190-22D(1)].
(1)
Digital submission requirements. All as-built drawings submitted
digitally shall meet the following standards:
(a)
Data integrity. All data submitted shall be in compliance with
the "Manual of Practice for Professional Land Surveyors in the Commonwealth
of Pennsylvania."
(b)
Data layering. Digital submissions shall have all layers clearly
and separately represented. With all digital submissions, a document
shall be included outlining the following.
[1]
A list of all layers used with a description of what those layers
represent.
[2]
A list of all point files and break lines with a description
of any abbreviations.
[3]
Coordinate system. All as-built drawings must be in Pennsylvania
State plane projection, PA South Zone, NAD83 datum. Units shall be
in U.S. feet.
[4]
Format. All as-built drawings must be submitted in AutoCAD drawing
(.dwg) or AutoCAD interchange (.dxf) format on either three-and-one-half-inch
floppy disk or CD-ROM.
(2)
Coordinate system. All drawings must be in Pennsylvania State plane
projection, PA South Zone, NAD83 datum. Units shall be in U.S. feet.
(3)
As-built drawings. As-built drawings shall include, but need not
be limited to the following items.
(a)
All stormwater management facility(ies) as-built requirements
are referenced in § 190-15G(4)(r).
(c)
The professional land surveyor's certificate shall read as follows:
|
I, ____________________ a registered professional surveyor of
the Commonwealth of Pennsylvania do hereby certify that this plan
is prepared from a field survey made on this _____ day of _______________,
20___ and it represents the location of structures, driveways, parking
areas, landscaping, monuments, markers, roads, easements, property
boundaries, waterlines, sanitary sewer lines, stormwater facilities
and elevations of the stormwater detention basin and its associated
facilities as shown thereon by me for the owners or agents.
| ||
|---|---|---|
|
(SEAL)
| ||
|
Registration No.
| ||
|
Date
| ||
(d)
As-built drawings should also include items identified in § 190-22D(1).
A.
All installations, locations and materials shall comply with Borough
and PennDOT standards.
(1)
Traffic/regulatory sign details and procedures.
(a)
Stop signs.
(b)
Speed limit signs (25 miles per hour, unless noted).
(c)
No-outlet signs.
(d)
Yield signs.
(e)
Weight, size and load restrictions.
(f)
Turning restrictions.
(g)
Stopping, standing and parking restrictions.
(h)
Hazardous grade speed limits.
(i)
No-passing zones.
(j)
No turns on red restrictions.
(k)
Removal of traffic hazards.
(l)
School zones and school zone speed limits.
(m)
Special speeds on bridges or elevated structures.
(n)
Creation of one-way streets.
(o)
Private drives.
B.
All traffic control signs (other than street name signs) must use
the following specifications:
(1)
One sign per post.
(2)
Must use lap splice U-channel breakaway system or other system approved
by Engineer.
(3)
Ten-foot-long galvanized steel posts.
(4)
Three-foot countersink posts, minimum four inches exposed, maximum
six inches exposed.
(5)
Breakaway hardware.
(6)
Theftproof nuts and bolts.
(7)
All traffic control signs must be at least seven feet to the bottom
of the sign and two feet to five feet behind the curb but not behind
sidewalk, if a sidewalk is installed.
(8)
Signs, when not at an intersection, should be placed between lots,
on lot lines.
(9)
Arrows indicate flow of traffic.
C.
Street name signs.
(2)
The standard Zelienople Borough street sign will have the following
specifications:
(a)
The street name shall appear on street name signs in capital
letters four inches high.
(b)
Prefixes such as "north" shall be abbreviated to "N."
(c)
Suffixes such as "drive" shall be abbreviated to "DR."
(d)
Prefixes and suffixes shall be four inches high.
(e)
The street name sign shall have 3M, or equal, white reflective
lettering on 3M 7725-58, or equal, green background.
(f)
Signs shall be mounted on nine-inch-wide extruded aluminum blanks
pre-drilled to accept vandalproof hardware.
(g)
Required length of sign shall be determined by the road name.
(h)
Post brackets and cross brackets for mounting the signs must
have a twelve-inch-long slot for securing the signs and also be drilled
to accept vandalproof hardware.
(i)
The vandalproof hardware shall consist of bolts with a twelve-point
socket head.
(j)
Sign post shall be galvanized, 10 feet by 2.375-inch O.D. by
two-inch I.D. round posts.
(4)
Developers may install "custom made" street name signs. The specifications
shall be as follows:
(a)
Letter height must be six inches minimum for uppercase letters
and 4 1/2 inches for lowercase.
(b)
Letter width must be one inch minimum.
(c)
Letter stroke width must be 3/4 inch minimum.
(d)
Letter color must be white reflective material.
(e)
The background color must be contrasting from that of the letters.
|
*
|
Note: All "custom made" street name signs shall be the responsibility
of the respective homeowners' association or private entity and shall
be identified in its documents. In the event that a custom made sign,
for any reason, may need to be replaced, it shall be replaced in a
reasonable amount of time or the Borough may replace it with a standard
Zelienople Borough sign. If custom made signs are utilized, a street
sign agreement shall be in place prior to Borough acceptance of the
streets.
|
(5)
Type of installation required.
(a)
Four-way signs shall be installed at all intersections where
at least one of the connecting roads are through ways that lead to
another street. If one of the streets has no outlet, then only a two-way
sign shall be required.
(b)
Two-way signs shall be installed at intersections where none
of the streets are through ways that lead to another street.
(6)
Private drives. For streets that are private, they may be noted as
such with a "Private Drive" sign at the entrance to each street. The
specification shall be as follows:
(a)
"Private Drive" street signs conform to the following:[2]
[1]
Letter height must be five inches minimum for uppercase letters
and four inches for lowercase.
[2]
Letter width must be 1 1/2 inches minimum.
[3]
The background color must be contrasting from that of the letters.
|
*
|
NOTE: All "Private Drive" street signs shall be the responsibility
of the respective homeowners' association or private entity and shall
be identified in its documents. Additionally, the Borough may at its
discretion install and maintain "Private Drive" signs.
|
D.
The developer shall install one "No Street Parking by Zelienople
Borough Ordinance" sign at the entrance(s) to every plan.
(1)
Specifications. The sign must be installed within the first 100 feet
of the entrance(s) to every development on the right-hand side of
the street.
E.
Final approval.
(1)
All identification and traffic warning and regulatory signage must
be installed prior to the Borough issuing any building permits.
(2)
Bonds shall not be released for the streets until all signage installations
receive final approval from the Borough Engineering Department.
(3)
When all signs have been installed, the developer must request the
project manager to review the installations. The project manager will
give written acceptance/denial. (A copy must go to the plan file and
project manager.)
(4)
All developers must purchase and install all signs. The Borough will
not order, pay for, receive, store or install any signs, posts, etc.,
for the developer.
|
*
|
Note: All PennDOT Publications can be obtained from:
| |
|---|---|---|
|
Pennsylvania Department of Transportation
Publication Sales Store
P.O. Box 2028
Harrisburg, PA 17105-2028
|
All streetlighting shall be installed in compliance with Borough
standards for work in Borough rights-of-way. A streetlighting agreement
between the Borough and the association or private entity shall be
provided prior to road occupancy permit issuance.
The maximum allowable slope on an embankment shall be two horizontal
to one vertical (ratio). All embankments steeper than 2:1 shall require
a retaining system.
A.
Zelienople Borough operates a comprehensive traffic management network.
Specific types of devices should be of the type approved by the Borough.
(1)
Submittals.
(a)
All traffic signal drawings shall be submitted for approval
and shall consist of cover sheet, permit drawing, construction drawing
and tabulation sheets.
(b)
All equipment submittals and shop drawings shall be submitted
to Zelienople Borough for approval.
(c)
Format. All as-built drawings must be submitted in AutoCAD drawing
(.dwg) or Auto CAD interchange (.dxf) format on either a three-and-one-half-inch
floppy disk or CD-ROM.
