The design standards and requirements set forth in this article shall be observed as minimums by the subdivider in the design of each subdivision within Town of Rochester. The Planning Board shall require more restrictive standards where necessary to protect health, safety and welfare of the public, and where circumstances unique to the property so dictate. The Planning Board shall review all applications for subdivision with regard to the standards and regulations of this Code and any applicable local, county, state, or federal standards or regulations.
A. 
Those areas which are subject to such hazards of life, health or property as may arise from fire, flood or noise, or are considered to be uninhabitable for other reasons, may not be subdivided for building purposes unless the hazards have been eliminated or the plans show adequate safeguards correcting the hazards.
B. 
In addition, the Town may rely upon information contained in its Comprehensive Plan and, in determining and evaluating potential hazards use historical records, soil evaluations, engineering studies, expert opinions, established standards used by licensed insurance companies or in professional practice, and federal, state, or local policies.
C. 
All portions of a tract being subdivided shall be taken up in lots, streets, public lands, dedicated open space or other proposed uses, so that remnants and landlocked areas shall not be created. The layout of a subdivision shall also be planned with consideration to existing nearby developments or neighborhoods, so that the development is coordinated in terms of traffic movement, drainage, and other reasonable considerations.
D. 
In all subdivisions, care shall be taken to preserve natural features such as trees, watercourses, views, and historical features which will add attractiveness and value to the remainder of the land.
E. 
Damming, filling, relocating or other interference with the natural flow of surface water along any surface water drainage channel or natural watercourse shall not be permitted except with the approval of the Planning Board and, where appropriate, DEC.
F. 
Wherever possible, lot lines shall follow Town boundary lines rather than cross them, and reserve strips controlling access to lots, public rights-of-way, public lands or adjacent private lands are prohibited.
G. 
Subdivision of land located in the FEMA mapped 100-year floodplain or containing federal or New York State designated wetlands shall be required to adhere to any federal, state, or local regulations of those areas. The Planning Board shall require plat and deed notations and restrictions illustrating such regulations. Each lot fronting on a named stream depicted on United States Geological Survey maps shall include a setback of 100 feet in depth from the high water mark of such stream and include a plat notation indicating such setback. No principal structure shall be located within such setback. The Planning Board shall, however, be authorized to modify this requirement where necessary or to accommodate reasonable use of properties outside the floodplain, provided other mitigating measures such as deed covenants limiting clearing near the stream are employed to protect stream quality.
H. 
The subdivision shall avoid adverse impacts to existing groundwater users and/or surface waters. Elements related to wellhead protection areas, water uses, potential contaminant sources and related matters shall be included with the preliminary subdivision submission.
I. 
The Planning Board may appropriately modify the standards herein to accommodate solar and other energy efficient systems. No homeowner or property owner association shall prohibit solar energy systems. Covenants and restrictions connected with projects requiring subdivision approval shall be reviewed for purposes of ensuring there are no such prohibitions.
A. 
Design criteria. The following planning and design standards shall apply to all subdivisions.
(1) 
The proposed subdivision shall be designed to cause the least practicable disturbance to natural infiltration and percolation of precipitation to the groundwater table through planning of vegetation and land disturbance activities and avoiding the placement of impervious surfaces in locations having the greatest permeability where precipitation is most likely to infiltrate and recharge the groundwater.
(2) 
No clearing or earth disturbance (except for access for soil analysis for proposed sewage disposal systems and similar testing) shall be permitted on a site before the securing of preliminary subdivision approval.
(3) 
Stream valleys, swales, and other lowland areas may require adjoining buffer lands to be included in the conservation area.
(4) 
Because of their resource values, all woodlands exceeding one acre on any tract proposed for conservation subdivision shall be evaluated and shall be preserved and designated as conservation areas, to the maximum extent possible. Proposed site improvements shall be located, designed, and constructed to minimize the loss or degradation of woodland areas. Nothing herein shall prevent development of woodlands as a general principle if an entire site is wooded.
(5) 
Subdivisions shall be designed to preserve woodlands along roadways, property lines, streams, swales, stone fences and hedgerows. Such lines and the existing vegetation associated with them shall be preserved as buffers between adjacent properties and between areas being subdivided within a property. Preservation shall include ground, shrub, understory, and canopy vegetation.
(6) 
Areas comprising fields, pastures and meadows with fences, stone walls, tree copses, hedgerows and visually prominent places such as knolls and hilltops shall be maintained where practicable by employing compact clustered residential designs in locations such as at the far edge of open fields.
(7) 
All grading and earthmoving on slopes exceeding 15% grade shall be minimized. No site disturbance shall be allowed on slopes exceeding 25% grade, except grading for a portion of a driveway accessing a single-family dwelling when it can be demonstrated that no other routing that avoids slopes exceeding 25% is feasible. Exceptions may also be granted where structures are built into the slope to minimize total disturbance. When building on slopes, applicants should take advantage of topography by building multilevel structures with entrances on more than one level (e.g., walk-out basements, garages under buildings), rather than grading entire sites flat.
(8) 
Applicants shall, to the maximum extent practicable, protect significant natural areas known from official records to contain rare or endangered plants and animals, as well as other features of natural significance identified by the Town's Comprehensive Plan or by the applicant's existing resources and site analysis by incorporating them into proposed conservation areas.
(9) 
Where a plan will have an impact on an historic resource referenced in the Town Comprehensive Plan or identified by the Town Historic Preservation Commission, the developer may be required to mitigate that impact, to the maximum extent practicable, by modifying the design, relocating proposed lot lines, providing landscape buffers or using other approved means.
(10) 
When trails are intended for public or private use, they shall be protected by a permanent conservation easement on the properties on which they are located. The width of the protected area in which the trail is located should be a minimum of 10 feet. The land area permanently designated for trails for public use may be credited toward any open space requirement.
(11) 
Wherever feasible, the subdivider shall retain and reuse existing old farm roads and lanes rather than constructing new roads or driveways. Stone walls and hedgerows shall be employed in the development design where practicable. The subdivider should also avoid placing buildings in the middle of open fields. However, septic systems and leach fields should generally be located in open fields, when possible.
(12) 
Existing vegetation and topography should be used to buffer and screen new buildings if possible, unless they are designed and located close to the road in the manner historically found in the Town. Buildings should be sited in groups or tucked behind treelines or knolls rather than spreading them out across the landscape in a "sprawl" pattern. Clearing of vegetation at the edge of the road should be minimized, clearing only as much as is necessary to create a driveway entrance with adequate sight distance.
(13) 
Curves should be created in driveways to increase the screening of buildings. Buildings should be sited so they do not protrude above treetops and crestlines of hills as seen from public places and roads. Vegetation should be used as a backdrop to reduce the prominence of the structure. Wherever possible, views should be opened up by selective cutting of small trees and pruning lower branches of large trees, rather than by clearing large areas or removing mature trees.
B. 
Each new lot outside a conservation subdivision (see § 125-22) shall meet the minimum area, width, depth, and setback requirements set out in Chapter 140, Zoning, or shall have received approval from the Zoning Board of Appeals for an area variance.
C. 
Pedestrian interior walks or trails may be required, where necessary to assist circulation or provide access to community facilities and open space. Such walks or trails shall have a right-of-way width of not less than 10 feet and be all-weather-surfaced for not less than three feet in width.
D. 
Blocks shall not exceed 1,200 feet in length. Blocks shall be of sufficient width to permit two tiers of lots of appropriate depth, except where an interior street parallels a major street, or where it backs up to a railroad, creek, or other natural barrier or other unsubdivided area.
E. 
Where a subdivision adjoins a major highway (one which is designated and marked for two lanes or more and carries at least 1,000 vehicles per day), the greater dimension of the block shall front along said highway, and interior streets may be required to minimize the number of points of access. Such streets may be required whenever topographic conditions, traffic density or lack of proper sight distance dictate for reasons of health and safety. Any subdivision of five lots or more with frontages averaging less than 300 feet along the highway shall be subject to this requirement, if the Planning Board determines, after inspection, that safety demands restricting access.
F. 
No dead-end roads without proper turnarounds shall be permitted. Cul-de-sac streets shall not exceed 2,000 feet in length or six times the minimum lot width of the lots along said road, whichever is greater, measured from the center line of the continuous road providing the only access to the cul-de-sac or turnaround. Roads which terminate without connection to another roadway must be designed as culs-de-sac as further described herein. Cul-de-sac streets, permanently designed as such, shall not furnish access to more than 25 dwelling units. Cul-de-sac streets shall have, at the closed end, a turnaround with the right-of-way having an outside diameter of not less than 100 feet and shall be surfaced to a diameter of not less than 90 feet. An inside landscaped area of not more than 60 feet in diameter shall be encouraged. Drainage of culs-de-sac shall preferably be toward the open end. The Planning Board shall have authority to require the use of loop streets and other alternatives to culs-de-sac where such alternatives are available and preferable as a means of providing safe access to lots, making street connections or limiting environmental impacts. The Planning Board may also require turn-around or pulloff areas along the way for safety purposes in the case of long culs-de-sac.
G. 
All side lines of lots shall be at approximate right angles to straight street lines and radial to curved street lines, except where a variation to this rule will provide a safer layout.
H. 
If remnants of land exist after subdividing, they shall be incorporated in existing or proposed lots, unless designated as common area or dedicated to open space.
I. 
Either of the two sides of a corner lot may be designated as the front, provided the rear yard shall always be opposite the frontage so designated.
J. 
All lots shall front on the edge of a public or private road right-of-way (existing or proposed) and the right-of-way of the principal access to any subdivision shall be a minimum of 50 feet in width.
(1) 
Insufficient frontage with access via shared driveway. The Planning Board may grant a waiver from required lot frontage and other street requirements of this chapter upon written request and application by the developer to the Planning Board to permit a subdivision which would result in access to no more than two single-family dwellings or lots which do not have the required minimum lot frontage and are proposed to gain access from a shared driveway through the establishment of a right-of-way. The shared driveway shall be utilized by no more than a total of three single-family residential lots including the lot it has access over. The Planning Board shall review such application in the manner as prescribed under the Town of Rochester Code section § 140-10D(3) and no approval shall be granted unless a release has been given the Town and approved by the Town Board making clear that the Town is exempted from all responsibility for the maintenance of the same and the lot in question is not capable of being subdivided further or is so restricted. Evidence of satisfactory shared arrangements for ownership and maintenance of the drive shall also be provided in the form of deed covenants and a road maintenance agreement. See also § 125-29R hereof.
(2) 
Private road frontage application review. The Planning Board, in review of such site plan or subdivision which has or proposes lot frontage on or has access by a private road, shall refer such application to the Town Highway Superintendent for determination as to the condition of the private road and determination if such private road meets Town standards for private roadways. The Planning Board may impose conditions of approval stating the lot in question is not capable of being subdivided further or is so restricted, may impose restrictions on the issuance of building permits, may restrict the use of such parcels to single-family residential use, may require improvements be made to an existing private road, or any other conditions determined to be in the interest of health, safety, and welfare.
(3) 
At the discretion of the Town Superintendent of Highways, any residential use parcel which has frontage on two or more Town roads may be required to access the public road via the lesser-traveled roadway; similarly, any residential use parcel which has frontage on a private road and a Town road may be required to access the private road.
K. 
Monuments shall be placed at perimeter corners and the corner of each street, and markers set at the corner of each lot, consistent with surveyors' professional practice, to permanently and accurately define the metes and bounds of the block and lots created.
L. 
Where any portion of subdivision roadways or infrastructure is to be located in an adjoining municipality, the final subdivision plats cannot be signed until such infrastructure is complete and approved by the adjoining municipality.
A conservation subdivision is one where lots or dwelling units are clustered closer together on a tract with the specific objective of creating large usable sections of open space on the remainder of the property. Conservation subdivisions offer flexibility in design, facilitate the economical provision of streets and utilities and preserve open space. The following regulations shall apply to such development in the Town of Rochester:
A. 
The Town of Rochester Planning Board shall be authorized, simultaneously with the approval of plans under this chapter, to apply the provisions set forth in this section for the purpose of accommodating conservation subdivision projects. Section 278 of the Town Law, including but not limited to §§ 3(b), is hereby superseded so as to permit the increases in density and reductions in lot sizes and other changes in bulk requirements required to accommodate conservation subdivisions as provided herein. Conservation subdivisions shall be allowed anywhere within the Town of Rochester.
B. 
The Planning Board may authorize conservation subdivision, as a form of development, in those instances where conventional subdivisions or residential developments would cause significant loss of open space or otherwise result in significant negative environmental impacts, using the standards of §§ 125-22A above as a guide.
C. 
Conservation subdivisions shall ordinarily include at least five lots and 10 acres of contiguous land but the Planning Board may require conservation subdivision design practices to protect particularly valuable open spaces. The Planning Board shall have the authority to require the submission of an alternative sketch plan, for any subdivision of 10 lots or more, or any major subdivision, depicting how the property might be developed using this technique. This alternative sketch plan may be used to ascertain the best method of developing a given property. The Planning Board shall apply conservation design criteria from § 125-22A above to preserve vital open spaces identified in the Town Comprehensive Plan and related documents, while, at a minimum, maintaining the density allowed under the Town Zoning Law. No less than 40% of the gross acreage of any conservation subdivision shall be composed of open space.
D. 
The Planning Board shall be authorized to modify development standards as provided below and grant a density bonus of 25% where 50% or more of the tract is preserved as open space and conservation subdivision is proposed.
E. 
Single-family detached and two-family dwellings (at the same dwelling units per acre) shall be the preferred development employed in this concept. Multifamily dwellings may be considered upon presentation of the community need for such development.
F. 
Lot size.
(1) 
Development standards for streets, lot size, lot width, lot coverage and lot depth may be reduced, provided no dwelling structure (single-family or two-family) is located on less than:
(a) 
32,670 square feet of land without both central sewer and central water facilities.
(b) 
20,000 square feet of land where both central sewer and central water facilities are to be provided.
(2) 
A mix of lot sizes will be encouraged and up to 20% of the lots may consist of lots of 10 acres or more that shall be counted as open space for density calculation purposes if deed restricted from further subdivision. Such lots shall represent no more than 25% of the open space. Yard requirements may also be reduced, but in no instance to less than 20 feet for the front yard and 10 feet for the side and rear yards. Notwithstanding these yard requirements, however, all principal structures shall be separated by a distance of at least 40 feet. Also, no more than 35% of any given acre shall be covered with impervious surface in the form of access drives, parking areas or structures.
G. 
No individual parcel of common open space shall be less than one acre except as to roadway median strips, traffic islands, walkways, trails, courtyards, play areas, recreation facilities, and drainageways leading directly to streams, historic sites or unique natural features requiring common ownership protection. No more than 50% of the permanent open space may consist of wetlands, floodplains, slopes of 25% or more, water bodies and other undevelopable areas unless incorporated into the open space in such a manner as to make substantial practical use of these areas for trails, other active recreational uses (e.g., ballfields and golf courses) or similar development features, including use for stormwater and sewage treatment. Such determination shall, however, be solely in the discretion of the Planning Board. The Planning Board may also require open space linkages with adjoining properties, set-asides of active recreation area for residents and fronting of up to 50% of lots on open spaces. Open spaces within a property shall be contiguous with residential lots and linked to each other and public rights-of-way wherever possible to facilitate common use by the residents of the development.
H. 
The open space resulting from conservation subdivision design shall be permanently protected through a conservation easement. The easement shall be titled to a homeowners' association (HOA), land trust, municipality (if accepted by the governing body) or other public entity and placed under such management as to ensure the perpetual maintenance of the open space in its generally existing condition. Such land may be used for any open space purpose approved by the Town Planning Board, including farming, active or passive recreational use and similar activities that will effectively preserve open spaces and the existing landscape character, prior to the sale of any lots or dwelling units within the subdivision. Private, deed-restricted ownership for use in open spaces or agriculture may also be approved at the discretion of the Planning Board. The Town Board must approve the form of all conservation easements and may require the Town be designated therein as a party with rights to enforce such agreement.
I. 
Membership in any HOA to which open space is to be dedicated shall be mandatory for each property owner within the subdivision and successive owners with voting of one vote per lot or unit. The subdivider shall have full responsibility for operation and management of the HOA until such time as 90% of the lots or units are sold. All restrictions on the ownership, use and maintenance of common open space shall be permanent and the HOA shall be responsible for liability insurance, local taxes, and maintenance of all open space, recreational facilities and other commonly held amenities. Each property owner must be required to pay their proportionate share of the HOA's cost and the HOA must be able to file liens on the lot/unit owner's property if levied assessments are not paid. The HOA must also have the ability to adjust the assessment to meet changing needs. Should requirements of federal or New York State law differ from these provisions, the higher standards shall apply.
J. 
Wells and sewage treatment systems of either an individual or central nature as defined herein may be located within or extend into open space areas provided that infrastructure associated with such systems shall not count toward open space requirements and further provided that subsurface sewage disposal methods are employed, all required isolation distances are observed and the ownership and maintenance responsibilities associated therewith are clearly defined in agreements submitted for approval as part of the subdivision application. No application shall be approved that does not provide lot buyers with both the legal authority and the responsibility, individually or collectively, to maintain all sewer and water facilities on a continuing basis.
K. 
The HOA shall be responsible for maintenance of all improvements including not only roads, utilities and recreation facilities, but also stormwater management improvements as required herein or by other Town or state regulations.
L. 
The following process shall be followed in preparing a conservation subdivision plan once the applicant or Planning Board has determined, from a sketch plan submission, that this is the form of development for the property in question. This process shall be in addition to normally applicable subdivision procedures.
(1) 
The applicant shall submit an existing resources and site analysis map giving a comprehensive analysis of existing conditions on the proposed development site. It shall include:
(a) 
Topography at contour intervals of no less than five feet. Slopes of 15% to 25% and exceeding 25% shall be clearly indicated.
(b) 
The location and delineation of ponds, streams, ditches, vernal pools, drains, and natural drainage swales, as well as the 100-year floodplains and designated wetlands.
(c) 
Vegetative cover conditions on the property according to general cover type including cultivated land, permanent grassland, meadow, pasture, old field, hedgerow, woodland and trees with a caliper in excess of 15 inches. The Planning Board may waive tree locational requirements within wetlands, floodplains, on slopes greater than 25%, and in other areas proposed to be conserved in their natural state.
(d) 
Soil series, types and phases, as mapped by the U.S. Department of Agriculture, Natural Resources Conservation Service.
(e) 
A viewshed analysis showing the location and extent of views into the property from public roads and from public parks, and public forests.
(f) 
Geologic formations on the proposed development parcel, including rock outcropping, cliffs, sinkholes, and fault lines, based on available published information or more detailed data obtained by the applicant.
(g) 
All existing man-made features, including but not limited to streets, driveways, farm roads, woods roads, trails, buildings, foundations, stone walls, wells, drainage fields, dumps, utilities, stormwater detention facilities and storage tanks.
(h) 
Locations of all historically significant sites or structures.
(2) 
After preparing the existing resources and site analysis map, applicants shall arrange for a site inspection of the property by the Planning Board and other Town officials. Based on the map and inspection, a four-step design process shall then be applied to determine the layout of proposed conservation areas, house sites, streets and lot lines, as described below:
(a) 
Proposed conservation areas shall be designated using the existing resources and site analysis map. Primary conservation areas shall be delineated comprising floodplains, wetlands and slopes over 25%. Secondary conservation areas shall also be delineated and prioritized for preservation.
(b) 
Tentative house sites shall be identified. They should generally be located not closer than 100 feet from primary conservation areas and 50 feet from secondary conservation areas, taking into consideration the potential negative impacts of residential development on such areas as well as the potential positive benefits of such locations to provide attractive views and visual settings for residences.
(c) 
Upon designating the house sites, a street plan shall be designed to provide vehicular access to each house, bearing a logical relationship to topographic conditions. Impacts of the street plan on proposed conservation areas shall be minimized. Street connections shall generally be encouraged to minimize the number of new culs-de-sac and facilitate access to and from homes in different parts of the tract.
(d) 
Upon completion of the preceding three steps, lot lines shall be drawn to delineate the boundaries of individual residential lots.
A. 
In the case of subdivisions of 25 or more lots, then not less than 10% of the gross area of the entire tract, exclusive of lakes or ponds, shall be reserved for common open space directly accessible from the lots to be created. Such open space shall be suitable for recreational use of the residents of the subdivision or the general community. The following and similar facilities shall meet this requirement: swimming pools, tennis courts, riding and cycling paths, playgrounds, community centers, and other open areas. Such areas as are designated for play lots, parks and other outdoor recreational facilities shall be of a size, shape and other physical characteristics so as to be free of health and safety hazards and suitable for the designated use. No portion of the 10% requirement shall be met with wetlands, slopes exceeding 15% in grade or other otherwise undevelopable areas. Sites so dedicated shall not be deemed to be accepted by the Town unless and until the Town Board has taken formal action to accept the same.
B. 
If the Planning Board determines a suitable park or parks of adequate size cannot be properly located within a subdivision or is otherwise not practical, then the Board shall require, as a condition to approval of any such plan, a payment to the Town in an amount set from time to time by resolution of the Town Board, which amount shall be available for use by the Town for neighborhood park, playground or recreation purposes, including the acquisition of property.
A. 
Where a central water supply is available within 1,000 feet of the proposed residential development, the subdivider shall, if legally and practically feasible, construct a system of water mains tied to such system and provide a connection for each lot.
B. 
Plans and specifications for central water systems (i.e., extension of an existing system or a proposed new facility) shall be prepared by a professional engineer and shall conform to requirements of the Ulster County Department of Health and the local fire district(s). Suitable agreements shall also be established for the ownership and maintenance of such distribution system.
A. 
All residential lots shall contain suitable areas for on-site sewage disposal systems or be served by an approved central sewage disposal system. Plans and specifications for central systems, as required by the New York State Department of Environmental Conservation ("DEC"), shall be submitted with all preliminary subdivision plans and design standards shall meet DEC requirements. Formal approval of DEC shall be required prior to final plan approval.
B. 
When a central sewage disposal system is located within 1,000 feet of the proposed residential development, the subdivider shall, if legally and practically feasible, provide a system of collection lines to connect to said system. Regardless of this requirement, all subdivision and land developments shall be provided with an adequate sewage disposal system(s). Central sewage disposal systems shall also be required for all residential lots and nonresidential developments where on-site soil conditions are unsuitable for on-lot subsurface sewage disposal systems.
C. 
Where connection to a central sewage disposal system is not required, on-site systems shall be provided in accordance with criteria set forth by the Ulster County Department of Health. The applicant's professional engineer, subject to the approval of the Planning Board, shall determine the number and location of test pits and soil percolation tests necessary to determine the general suitability of soils throughout the subdivision for on-site subsurface sewage disposal, where the Ulster County Department of Health does not control.
D. 
Sanitary sewers shall not be used to carry stormwater.
Should any subdivider intend, through road construction or installation of other subdivision improvements, to make land changes by grading, filling, excavating or the removal of the natural topsoil or vegetative covering thereon in accordance with a subdivision plan submitted to the Town, the same shall only be approved and accomplished after the developer has submitted to the Town an Erosion and Sedimentation Control Plan. Erosion control measures shall be employed as necessary to prevent loss of soil from erosion and also to prevent resulting property damage, siltation and contamination of water courses or impoundments. Erosion control measures may include but are not limited to hay bales, silt fences or other provisions or combinations thereof.
A. 
Stormwater management. No application for major subdivision approval shall be reviewed until the Town of Rochester Planning Board has received a stormwater pollution prevention plan (SWPPP) prepared in accordance with the specifications of this local law and as required by New York State. All SWPPPs, except as noted above, shall provide for the following:
(1) 
A map depicting the total site area; all improvements; areas of disturbance; areas that will not be disturbed; existing vegetation; on-site and adjacent off-site surface water(s); wetlands and drainage patterns that could be affected by the construction activity; existing and final slopes; locations of off-site material, waste, borrow or equipment storage areas; and location(s) of the stormwater discharge(s);
(2) 
Description of the soil(s) present at the site and the source of this data;
(3) 
A construction phasing plan describing the intended sequence of construction activities, including clearing and grubbing, excavation and grading, utility and infrastructure installation and any other activity at the site that results in soil disturbance;
(4) 
A description of the pollution prevention measures that will be used to control litter, construction chemicals and construction debris from becoming a pollutant source in stormwater runoff;
(5) 
Temporary and permanent structural and vegetative measures to be used for soil stabilization, runoff control and sediment control for each stage of the project from initial land clearing and grubbing to project close-out;
(6) 
A site map/construction drawing(s) specifying the location(s), size(s) and length(s) of each erosion and sediment control practice;
(7) 
Dimensions, material specifications and installation details for all erosion and sediment control practices, including the sighting and sizing of any temporary sediment basins;
(8) 
An implementation schedule for staging temporary erosion and sediment control practices, including the timing of initial placement and duration that each practice should remain in place;
(9) 
A stormwater maintenance agreement to ensure continuous and effective operation of the erosion and sediment control practice;
(10) 
A delineation of SWPPP implementation responsibilities for each part of the site;
(11) 
A description and site map/construction drawing(s) showing the specific location(s) and size(s) of each post-construction stormwater management practice;
(12) 
Hydrologic and hydraulic analysis for all structural components of the stormwater management system for the applicable design storms;
(13) 
Comparison of post-development stormwater runoff conditions with pre-development conditions;
(14) 
Dimensions, material specifications and installation details for each post-construction stormwater management practice;
(15) 
Maintenance easements to ensure access to all stormwater management practices at the site for the purpose of inspection and repair. Easements shall be recorded on the plan and in a declaration of covenants and restrictions recorded in the Ulster County Clerk's office and shall remain in effect with transfer of title to the property;
(16) 
The SWPPP shall be prepared by a landscape architect, certified professional or professional engineer and must be signed by the professional preparing the plan, who shall certify that the design of all stormwater management practices fully meets the requirements of this chapter and § 140-22 of the Town of Rochester Zoning Law.
(17) 
The applicant shall assure that all other applicable environmental permits have been or will be acquired for the land development activity prior to approval of the final stormwater design plan.
(18) 
Stormwater management practices shall be designed and constructed in accordance with the New York State Stormwater Management Design Manual, New York Standards and Specifications for Erosion and Sediment Control and § 140-22 of the Town of Rochester Zoning Law, provided that such practices shall maximize use of natural stormwater management methods (e.g., grass swales) and minimize use of dry above-ground stormwater detention facilities. Generally, applicants shall employ low-impact development techniques as provided for in the New York State Stormwater Management Design Manual. Infiltration practices shall be used whenever acceptable under DEC guidelines. Applicants shall provide deep test pits and percolation tests in support of this or demonstrate infiltration is not a viable practice for the site in question.
(19) 
No land development activity in conjunction with any subdivision shall cause an increase in turbidity that will result in substantial visible contrast to natural conditions in surface waters of the State of New York.
(20) 
GPS (global positioning system) reference data for stormwater outfalls and permanent structures built in accordance with New York State Stormwater Management Design Manual shall be required on all subdivision plans.
B. 
Stormwater management system maintenance.
(1) 
The stormwater maintenance agreement and management plan for any major subdivision shall contain an operation and maintenance plan prepared by the applicant and approved by the Town Engineer, which shall include the estimate of annual maintenance costs. The operation and maintenance plan shall establish responsibilities for the continued operation and maintenance of all common stormwater management improvements, which shall include all stormwater management improvements designed to serve more than a single lot or dwelling. All such facilities associated with the approved subdivision plan shall be owned and maintained by a homeowners' association (HOA) or such other entity as may be approved by the Town Board with the advice of the Attorney for the Town. The developer shall be responsible until no less than 90% of lots are sold. The HOA or other approved entity shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used to achieve compliance with the requirements of this chapter. Sediment shall, at a minimum, be removed from sediment traps or sediment ponds whenever their design capacity has been reduced by 50%.
(2) 
Prior to approval of any subdivision plan where common stormwater management improvements are required, the property owner, HOA or other approved entity shall sign and record a maintenance agreement covering all common stormwater management facilities. Such maintenance agreement shall be subject to the review and approval of the Planning Board and Town Attorney.
(3) 
Inspections.
(a) 
Stormwater detention and retention basins or facilities owned or managed by an HOA/developer shall be inspected by a registered professional engineer licensed in the State of New York on behalf of the applicant or responsible entity on the following basis:
[1] 
Annually for the first five years.
[2] 
Once every three years thereafter.
[3] 
During or immediately after the cessation of a 100-year or greater storm event.
(b) 
The professional engineer conducting the inspection shall be required to submit a written report to the HOA or other approved entity, with a copy to the Town of Rochester Building Department, within one month following completion of the inspection. The report will present documentation and include pictures regarding the condition of the facility and recommend necessary repairs, if needed. Any needed repairs shall be implemented by the HOA or other approved entity within three months of the report issuance date.
(4) 
No person shall allow, or cause to allow, stormwater discharges into the Town's separate storm sewer system that are not composed entirely of stormwater, discharges from firefighting, water from foundation drains, flows from natural sources and flows from other similar uncontaminated sources. The following connections are prohibited:
(a) 
Any drain or conveyance, whether on the surface or subsurface, which allows any nonstormwater discharge including sewage, process wastewater or wash water, to enter the separate storm sewer system and any connections to the storm drain system from indoor drains and sinks.
(b) 
Any drain or conveyance connected from a commercial or industrial land use, except as may be approved by the Planning Board as part of a mixed-use development plan.
(5) 
The Planning Board may require that a major subdivision plan include a set of best management practices (BMPs) from which the owner of any individual lot must choose in implementing stormwater management measures in conjunction with property development. Such BMPs shall be fully specified in the subdivision plans and imposed by restrictive deed covenant making reference to such plans. No person shall modify, remove, fill, landscape or alter any such on-lot stormwater management improvements or drainage easement, unless it is part of an approved maintenance program, without the written approval of the HOA or other approved entity.
(6) 
All requirements of the State of New York for stormwater pollution prevention plans (SWPPPs) and the Town of Rochester Zoning Law[1] are incorporated herein by reference and shall apply in addition to the above standards.
[1]
Editor's Note: See Ch. 140, Zoning.
A. 
The arrangement, character, extent, width, grade and location of all streets shall conform to the provisions found herein. Every subdivision shall have access to a public right-of-way. All streets and driveways shall conform to New York State Fire Code access requirements.
(1) 
In general, all streets shall be continuous and in alignment with existing streets and shall compose a convenient system to ensure circulation of vehicular and pedestrian traffic.
(2) 
Streets shall be logically related to the topography so as to produce usable lots and reasonable grades as required by this chapter.
(3) 
Dead-end streets shall be prohibited, except as stubs to permit future street extension into adjoining tracts, or when designed as culs-de-sac.
(4) 
The arrangement of streets in new subdivisions shall make provision for the extension of streets to adjoining property, including the grant of rights-of-way for these purposes.
(5) 
Streets shall be laid out to intersect at ninety-degree angles. Where not possible, the minimum adjustment required may be approved provided that in no event shall any street intersect another at less than 75°. Intersections of more than two streets shall be avoided. Where this proves impossible, such intersections shall be designed with care for safety, and suitable curbs, barriers, signs and other devices as may be required. Streets entering opposite sides of another street shall be offset a minimum of 125 feet. Where impossible to create such offsets, such streets shall be laid out directly opposite one another utilizing stop signs or signals.
(6) 
Street and driveway intersections with arterial streets shall not be so numerous, nor so close to each other, as to impede the flow of traffic.
(7) 
Clear sight triangles (see illustration) shall be provided at all street intersections. No structure or vision-obstructing object other than utility poles, street lights, street signs, or traffic signs shall be permitted that obscures vision in these triangles above the height of 36 inches and below 10 feet measured from the centerline grade of intersecting streets. Such triangles shall be established at 75 feet from the point of intersection of the centerlines.
(8) 
Whenever, in connection with a major subdivision, the principal access (whether public or private) to such subdivision, by virtue of bridge weight limits of less than 10 tons or other comparable limitations, would restrict access to the property by emergency vehicles or school buses, the subdivider shall so indicate in writing on the final plans to be recorded and shall provide for notification to prospective lot buyers through deed covenant provisions which shall be approved by the Planning Board as to form.
(9) 
Lots located on an existing street or right-of-way not meeting these street standards may be further subdivided only if such existing street or right-of-way is improved to the maximum extent practicable to meet current standards, as shall be determined by the Town of Rochester Highway Superintendent. Lots located on streets or rights-of-way that cannot be improved to meet current standards shall be limited to a maximum of 10 lots or one lot per five acres, whichever shall be less. Such lots may also be subdivided under § 125-29S hereof.
B. 
Alleys may be permitted, but in no case shall an alley provide the only means of access to a lot. Alleys are required on the rear of all commercial and industrial lots, if no other provisions are made for adequate service access or for parking. Alleys shall be limited in length to 800 feet per block.
C. 
Profiles.
(1) 
No street grade shall be less than 1% or exceed the following, with due allowances for reasonable vertical curves:
Type of Street or Way
Maximum Grade
Major traffic streets
8% (10% for up to 250 feet*)
Collector streets
10% (12% for up to 250 feet*)
Minor streets
12% (14% for up to 250 feet*)
*
With approval of Town Highway Superintendent
(2) 
Streets shall have a grade not to exceed 2% for a distance within 50 feet of the street right-of-way line of any intersecting street.
D. 
Cross section: The cross-section gradients of streets shall be not less than 2%.
E. 
Vertical and horizontal visibility (measured 3.5 feet eye level to tail lights 1.5 feet above ground level) shall be no less than the following:
Type of Street or Way
Minimum Visibility Distance
(feet)
Major highways
500
Collector streets
300
Minor streets
250
Streets shorter than 500 feet
150
F. 
The minimum right-of-way widths for streets are as follows:
Type of Street or Way
Minimum Right-of-Way Width
(feet)
Major streets
60
Collector streets
50
Minor streets
50
Alleys
25 (also maximum of 25)
G. 
Culs-de-sac shall have a right-of-way with an outside diameter of not less than 100 feet and shall be surfaced to a diameter of not less than 90 feet (see also § 125-22F). A hammerhead alternate design may be utilized with the approval of the Town Highway Superintendent.
H. 
The entire width of the travel way of each street in a proposed subdivision shall be graded and suitably prepared for installation of paving and drainage structures, in accordance with the appropriate standards for the class of street. The subgrade shall be free of sod, vegetative matter, or other similar material. Where poor subsurface drainage conditions exist, adequate drainage shall be installed. The subgrade construction shall conform to minimum standards of the Town road specifications.
I. 
Width of pavement.
(1) 
The width of pavement required shall vary, depending upon the character of the development served and the amount of traffic expected to utilize the street. The following are minimum street pavement widths:
Type of Street
Minimum Shoulder Width
(feet)
Minimum Clearance Beyond Shoulder
(feet)
Minimum Pavement Width
(feet)
Major streets
4
2
24
Collector streets
3
2
20
Minor streets
3
2
18
(2) 
The Planning Board may modify these standards as may be required to accommodate sidewalks and bike paths in densely populated areas or projects where connections to existing sidewalks, bike paths or trails are practical.
J. 
Unless otherwise specified herein, pavement construction shall be in accordance with specifications and standards contained in the Town road specifications, except that private roads not intended for dedication to the Town of Rochester do not require macadam pavement.
(1) 
Street shoulders shall be constructed with materials as specified by the Town road specifications. The entire shoulder area shall be uniformly and thoroughly compacted by rolling and must be level with the top of the road paving, or as directed by the Town Engineer.
(2) 
Embankments at the sides of streets and cross-sections of drainage ditches shall not exceed a maximum stope of three feet horizontally to one foot vertically in a cut or fill section. In special cases, the Town Engineer may require more rigid standards.
K. 
In commercial or multifamily subdivisions or any other case where other similar intensive uses exist or are anticipated, curbs may be required, if such construction is deemed necessary for public safety by the Planning Board, based on consultation with the Town Engineer and shall be constructed according to good engineering practice.
L. 
Where the grade of the street is above or below the grade of the adjacent land, walls or slopes shall be constructed in a manner satisfactory to the Planning Board, and shall be sufficient to support the street or the adjacent land, as the case may be. Where the grade of the street is three feet or more above the grade of the adjacent land, guards shall be built to protect travel, if required by the Town Engineer.
M. 
All streets, including culs-de-sac and alleys, shall be constructed as shown on the preliminary and final plan approved by the Planning Board and in conformity with the Town road specifications, except as provided herein. Approval of the Town Highway Superintendent shall also be required for all road plans, regardless whether they are proposed for dedication or not. Where such chapter does not provide a clear standard, the Town may rely upon the standards promulgated by the New York State Department of Transportation for local streets.
N. 
Two-way street name signs of a design approved by the Planning Board will be installed at each street intersection by the subdivider at his own expense. Streets that are extensions of, or obviously in alignment with, existing streets shall bear the name of existing streets. Street names shall not be repeated within the Town and shall be subject to Planning Board and Ulster County approval.
O. 
Street lighting is the responsibility of the applicant to provide, and the lot owners to maintain and operate. The Planning Board may determine when and if street lighting is necessary, evaluating need on the basis of safety considerations and commonly accepted standards of lighting. Whether or not street lights are initially installed, the developer shall be responsible for providing utility easements for future street lighting installation, upon consultation with the public service utility company involved.
P. 
Shade trees and other natural buffers along any proposed street right-of-way shall be retained to the maximum extent possible and cuts and fills which would necessitate removing such cover shall be minimized. Wide swath cuts or removal of natural vegetation shall not be permitted without compelling safety reasons.
Q. 
No driveway, street or drainage facility or structure shall be constructed or altered within a state right-of-way, and no drainage facility of the New York State Department of Transportation or County of Ulster shall be altered or connected onto without first obtaining a permit from the New York State Department of Transportation or County of Ulster. No driveway, local road or drainage facility or structure shall be constructed or altered within a Town right-of-way, and no drainage facility of the Town of Rochester shall be altered or connected onto without first obtaining a permit from the Town of Rochester Highway Superintendent.
R. 
Driveways.
(1) 
Individual driveways serving only one single family each shall not be subject to street improvement requirements of this chapter or to Town road specification; however, they shall be subject to the New York State Fire Code access requirements.
(2) 
Shared driveways shall be permitted provided the shared driveway shall be utilized by no more than a total of three single-family residential lots including the lot it has access over and meet the specific standards of § 125-22J hereof, and further provided that the Town of Rochester is given satisfactory evidence, in the from of deed covenants and a road maintenance agreement, that the private status of said road is permanent and that the following construction standards are met:
Type of Street or Way
Minimum Right-of-Way Width
(feet)
Minimum right-of-way
50
Minimum pavement width
16
Minimum shoulder width
2
(3) 
Pavement may consist of any all-weather surface satisfactory to the Town Engineer (if one shall be appointed) and Town Highway Superintendent. All drainage plans shall also be subject to approval of the Town Engineer (if one shall be appointed) and Town Highway Superintendent.
S. 
Private roads may be permitted pursuant to the following standards:
(1) 
The design and location shall be approved by the Town Engineer (if one shall be appointed) and Town Highway Superintendent.
(2) 
They shall meet town road specifications for minor streets except road surface may consist of any all-weather surface satisfactory to the Town Engineer (if one shall be appointed) and Town Highway Superintendent.
(3) 
They shall meet all provisions of the New York State Uniform Fire Prevention and Building Code and provide for safe access for emergency personnel. The Fire District Chief shall be referred the plans to make recommendations to the Planning Board.
(4) 
Should the private road be a dead-end street, a cul-de-sac shall be required.
(5) 
All drainage plans shall also be subject to approval of the Town Engineer (if one shall be appointed) and Town Highway Superintendent and/or the New York State DEC. The Planning Board may require a stormwater maintenance agreement.
(6) 
Utility access shall be provided and easements established for the maintenance of these utilities.
(7) 
A road maintenance agreement (RMA) approved by the Town Board, with advice of the Attorney for the Town, shall be required making clear that the Town is exempted from all responsibility for the maintenance of the same. Evidence of satisfactory shared arrangements for ownership and maintenance of the drive shall also be provided. The Planning Board may require the creation of a homeowners' association. Plat notations indicating the RMA shall be included on the final plan.
(8) 
Nothing contained herein shall be construed in any way to require the Town of Rochester to accept dedication of any street. These regulations are intended, rather, to set standards of construction for private roads and a proposed dedication of any such streets shall be subject to the specific dedication requirements of the Town road specifications.
T. 
Subdivisions, or expansions of subdivision, that result in total of 25 or more dwelling units shall provide off-street school and transit bus stopping and parking areas, including areas for student waiting and parent parking, sufficient to accommodate the needs of the subdivision, unless the Planning Board shall determine existing facilities suffice for this purpose. The applicant shall provide an evaluation of such needs, together with a site plan and proposed design standards to be applied, for review and approval by the Planning Board. Such area shall also be used to locate all mailboxes associated with such subdivisions. Location and design shall be subject to U.S. Postal Service standards, as well as review and approval by the Planning Board. No individual on-lot mailboxes shall be permitted in these circumstances. The Planning Board may require such provisions in the case of smaller subdivisions upon determining through findings such a need will exist.