[Ord. 2016-551 § 1
(part)]
The specifications and regulations which are mentioned by title
and date below are hereby adopted and declared to be a part of this
title when not in conflict with a specific statement contained herein.
[Ord. 2016-551 § 1
(part)]
The International Building Code, 2015 edition as published by
the International Code Council is hereby adopted by reference as the
building code for the City of Davenport.
[Ord. 2016-551 § 1
(part)]
The International Residential Code 2015 edition as published
by the International Code Council is hereby adopted by reference as
the residential building code for the City of Davenport.
[Ord. 2016-551 § 1
(part)]
The International Existing Building Code 2015 edition as published
by the International Code Council and as adopted and amended by the
State of Iowa LAC 661-301.7(103A) is hereby adopted by as the existing
building code for the City of Davenport.
[Ord. 2016-551 § 1
(part)]
The provisions of the International Residential Code for One-
and Two- Family Dwellings shall apply to the construction, alteration,
movement, enlargement, replacement, repair, use and occupancy of detached
one- and two- family dwellings and multiple single-family dwellings
(townhouses) not more than three stories in height with a separate
means of egress and their accessory structures.
The Provisions of the International Building Code and The International
Existing Building Code shall apply to all other buildings and structures
except as otherwise exempted in this code and as otherwise provided
for above under the International Residential Code for One- and Two-
Family Dwellings.
[Ord. 2016-551 § 1
(part)]
A. Chapters
1,
12,
13, 27, 28, 29, 30, 32, and 33 of the International Building Code, 2015 edition are deleted in their entirety and replaced by the codes and rules referenced by this Chapter and the Administrative Code contained in this Title as Chapter 15.08 and the Iowa Administrative Code.
B. Appendix chapters
C, I, of the International Building Code, 2015 edition are hereby adopted as part of this Chapter all other appendix chapters are deleted.
C. Delete all references to the International Plumbing Code and insert
in lieu thereof "State Plumbing Code."
D. Delete all references to the International Mechanical Code and insert
in lieu thereof "State Mechanical Code."
E. Delete all references to the International Fire Code and insert in
lieu thereof "Fire Code as adopted by the City of Davenport."
F. Delete all references to "National Fuel Gas Code" and insert in lieu
thereof "Fuel Gas Piping requirements of Iowa Administrative Code
641-25.3(105), Fuel gas piping." Fuel gas piping shall comply with
the State Plumbing Code.
[Amended 12-4-2019 by Ord. No. 2019-530]
1.
All permits and regulations for the construction, encroachment
and installation or maintenance within the public right-of-way and
upon dedicated storm, sewer and access easements and the installation
of public sidewalks, curb cuts, and drives are administered by the
Department of Construction and Engineering.
2.
See the Sign Ordinance of the City of Davenport for limitations
on the encroachment of signs onto public property.
3.
See Chapter 15.44 of the Davenport Municipal Code for development
for construction within a flood hazard area.
4.
See Iowa Administrative Code 641 Chapter 25 for the regulation
of plumbing, potable water supply, drain, waste and venting and hydronic
systems servicing buildings.
5.
See Iowa Administrative Code 641 Chapter 61 for the regulation
of heating, air-conditioning and mechanical systems for environmental
conditions and process within buildings.
6.
See Iowa Administrative Code 661 Chapter 504 and Chapter 15.16
of the Davenport Municipal Code for standards for electrical work.
[Ord. 2016-551 § 1
(part)]
A. Add a new paragraph to Section 1807.3 as follows:
All buildings or portions of buildings containing mechanical
installations and connected to underground utilities shall be supported
on a continuous, frost-free foundation capable of resisting the movement
of the slab-on-grade.
[4-13-2022 by Ord. No. 2022-183]
Editor's Note: History for the previously "Reserved" section
includes Ord. 2016-551 § 1
(part).
Elevator shafts opening directly into a fire resistance rated
corridor or stairwell shall be protected by self-closing doors actuated
by smoke detection in accordance with International Building Code
section 716.5.9.3 ( Smoke-activated doors). Hoistway opening protection
shall not be required on the level of exit discharge.
[Ord. 2016-551 § 1
(part)]
A. Delete Chapter 33 of the 2015 International Building Code in its
entirety and replace as follows:
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Chapter 33
DEMOLITION PROCEDURES
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3314.1 Completion. All demolition work shall be completed within
30 days from the commencing date of demolition. An extension of time
may be granted by the building official.
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3314.2 Site work. A Construction Site Erosion and Sediment Control
(COSESCO) Demolition permit application must be obtained from the
Natural Resources Division of Public Works and submitted for review.
The fee for a COSESCO demolition permit is $75 per lot and is valid
for one year. By obtaining a COSESCO Demolition permit the contractor
agrees to meet the terms and specifications outlined in Section 13.38
of Davenport Municipal Code. And this section as follows:
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3314.2.1 Site clearing. The demolition site shall
be cleared of all debris associated with the structures being removed.
All mechanical groundwork shall be removed from the site of demolition.
Foundation walls may be used as solid fill and in all cases shall
be removed or collapsed so as to allow burial below grade. Basement
and on grade concrete slabs shall be removed or substantially pulverized
to allow adequate drainage.
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3314.2.2 Backfill and site finish. Demolition work
shall include site work as necessary to fill all excavations and to
create a smooth and even finish grade capable of supporting vegetation.
Materials and specifications for filling and final site work are as
follows: Only material that will not decompose in the ground shall
be used for filling all excavations to within one foot of the top
of the surrounding grade. The top one foot of fill material shall
be tillable soil, of which the formed aggregate does not exceed 1 1/2
inches. An earthen crown shall be provided at the center of the demolition
site to allow for proper site drainage. Final site work shall include
the spreading of a grass seed blend suitable for the site and able
to provide adequate ground cover and protection from erosion of soil.
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3314.2.3 Excavations. The top and bottom of cut
slopes shall be made no closer than two feet to the site boundaries.
All excavated sites with a difference in elevation from the adjoining
grade level of 30 inches or more shall be filled and graded to a maximum
slope of two horizontal to one vertical. Sloped sites exceeding 12'
vertical height shall be graded to a maximum slope of three horizontal
to one vertical or shall be held in place by permanent retaining walls
equipped with guardrails. The Building Official may require engineered
designs for any retaining system.
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3314.2.4 Utility abandonment. The demolition shall
not commence and no permit shall be granted prior to the abandonment
of the gas and electric and water service by the serving utility and
abandonment of the sewer service at the street, alley, or other location
as approved by the Department of Construction and Engineering. Care
must be exercised not to cut off any sewer or water service that may
serve another building or installation. A permit secured from the
Construction and Engineering Department will be required for the excavation
in a public way. The Building Official may waive this requirement.
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B. Add a new section to Chapter 33 as follows:
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SECTION 3315
MOVING OF BUILDINGS
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3315.1 Permit authorization. No permit for foundation work,
excavation, or site development shall be granted by the building official
for the relocation of a moved building and no permit for moving of
any structure shall be granted without the written approval of the
Director of the Transportation Department. Such written approval shall
designate the approved route, designate the time and duration of the
move along public streets and any other restrictions deemed necessary
by the Director of Transportation. Such approvals shall be subject
to review by any public utility having property along the proposed
route. The Director of Transportation shall also notify the fire chief
and police chief of the intended route and shall continue such notification
for the duration of the moving, indicating any change in the route
and any pause in the moving procedure.
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3315.2 Use of public right-of-way. No building or structure
shall be allowed to remain over night upon any street or public right-of-way,
nor shall any such moving restrict, at any time, access to any fire
hydrant or necessary emergency equipment.
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3315.3 Notification. Every person receiving a permit to move
a building shall, within one day after the building reaches its destination,
report that fact to the Director of Transportation. The Director of
Transportation shall thereupon inspect the streets, alleys or public
ground over which the house or building has been moved and shall ascertain
the condition of same. If the moving has caused any damage to said
public right-of-way, repairs shall be made and all costs shall be
assessed against the party having been granted the permit for the
moving of the building or structure.
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[Ord. 2016-551 § 1
(part)]
A. Chapter
1 of the International Residential Code 2015 edition is deleted and replaced by the codes and rules referenced by this Chapter and the Administrative Code contained in this Title as Chapter 15.08 and the Iowa Administrative Code.
B. Part IV, Part V, Part VI, (fuel gas code) Part VII, Part VIII, of
the 2015 International Residential are deleted in their entirety and
replaced by applicable Chapters of this Title.
C. Appendix Chapter H, of the 2015 International Residential Code is
hereby adopted as part of this Chapter all other appendix chapters
are deleted.
D. Delete all references to the International Plumbing Code and insert
in lieu thereof "State Plumbing Code."
E. Delete all references to the International Mechanical Code and insert
in lieu thereof "State Mechanical Code."
F. Delete all references to the International Fire Code and insert in
lieu thereof "Fire Code as adopted by the City of Davenport."
G. Delete all references to National Fuel Gas Code and insert in lieu
thereof "Fuel Gas Piping requirements of Iowa Administrative Code
641-25.3(105) Fuel gas piping. Fuel gas piping shall comply with the
State Plumbing Code.
[Ord. 2016-551 § 1
(part)]
A. Table R301.2(1) is amended by adding the following information:
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Table R301.2(1) Climatic and Geographic Criteria
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Ground Snow Load
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Wind Design
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Seismic Design Categoryf
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Subject to Damage From
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Speedd
(mph)
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Topographic Effectsk
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Special Wind Regionl
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Wind-borne Debris Zonem
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Weatheringa
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Frost line Depthb
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Termitec
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|---|
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Ps = 30 psf, except that calculations for additional drift loads
shall use a ground snow load p9 = 25 psf
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115
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YES
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YES
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NO
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A
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SEVERE
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42 inches
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Moderate to Heavy
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Winter Design Tempe
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Ice Barrier Underlayment Requiredh
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Flood Hazardsg
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Air Freezing Indexi
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Mean Annual Tempj
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|---|
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-4° F
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YES
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Initial NFIP 4-14-1978 FIRM #170582 4-5-2010
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2000
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50.5° F.
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B. Delete Paragraph R302.13 in its entirety.
C. Delete Paragraph R310.1 and insert in lieu thereof the following
new section:
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R310.1 "Emergency Escape and Rescue Required." Basements, habitable
attics and every sleeping room shall have at least one operable emergency
rescue opening. Such opening shall open directly into a public street,
public alley, yard or court. Where basements contain one or more sleeping
rooms, emergency egress and rescue openings shall be required in each
sleeping room, but shall not be required in adjoining areas of the
basement when so provided. Where emergency escape and rescue openings
are provided, they shall have a sill height of not more than 44 inches
(1118 mm) above an adjacent permanent interior standing surface. The
adjacent permanent interior standing surface shall be no less than
36 inches wide and 18 inches deep and no more than 24 inches high.
Where a door opening having a threshold below the adjacent ground
elevation serves as an emergency escape and rescue opening and is
provided with a bulkhead enclosure, the bulkhead enclosure shall comply
with section R310.3. The net clear opening dimension required by this
section shall be obtained by the normal operation of the emergency
escape and rescue opening from the inside. Emergency escape and rescue
openings with a finished sill height below the adjacent ground elevation
shall be provided with a window well in accordance with section R310.2.
Emergency escape and rescue openings shall open directly into a public
way, or to a yard or court that opens to a public way.
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EXCEPTION: Basements used only to house mechanical equipment
and not exceeding total floor areas of 200 square feet
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D. Delete Paragraph R313.1 "Townhouse automatic fire sprinkler systems."
E. Delete Paragraph R313.2 "One and two family dwellings automatic fire
systems" in its entirety.
F. Delete Section R322, "Flood Resistant Construction," in its entirety.
Note: Chapter 15.44 of the Davenport Municipal Code for development
or construction within a flood hazard area.
[Amended 12-4-2019 by Ord. No. 2019-530]
G. Delete Section R323 in its entirety. (FEMA regulations apply for
storm shelter)
H. Delete Section R326 in its entirety and insert in lieu thereof the
following new section:
R326 "Swimming Pools, Spas and Hot Tubs." The design and construction
of pools and spas shall comply with the International Swimming Pool
and Spa Code Chapter 305 entitled "Barrier Requirements."
H.1. Section 305.4 Modified. Delete all reference to windows.
[Ord. 2016-551 § 1
(part)]
A. Delete table R403.1(1) table 403.1(2) and table 403.1(3), and replace
with the following table R403.1.
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Table R403.1
Concrete, Precast or Masonry Footings and Foundation
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Number of Floors Supported by the Foundation
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Thickness of Foundation Walls
(inches)
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Minimum Width Footing
(inches)
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Thickness of Footing
(inches)
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Minimum Depth of Foundation Below Natural Surface of Ground
or Finish Grade (whichever is lower) (inches)
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1
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8
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16
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8
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42
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2
|
8
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16
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8
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42
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3
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10
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18
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12
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42
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Note:
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1.
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Foundations may support a roof in addition to the stipulated
number of floors. Foundations supporting roofs only shall be as required
for supporting 1 floor.
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2.
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Footings shall be continuous and contain a minimum of 2, 1/2
inch reinforcement bars, and shall have a minimum compressive strength
of 2,500 pounds per square inch at 28 days.
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3.
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A 1 story wood frame building used for private garage, and accessory
to a single family residential use and not exceeding 720 square feet
in floor area may be constructed on a floating slab-on-grade provided
the following conditions are met: A concrete perimeter grade-beam,
12 inches deep and 12 inches wide and reinforced with 2, 1/2 inch
reinforcement bars shall be installed to support the exterior walls.
A minimum four-inch thick concrete floor slab reinforced with wire
mesh or fiber mesh shall be installed within the perimeter beam and
shall be formed to allow a continuous pour consisting of the required
grade beam and floor.
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4.
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Buildings or portions of buildings containing mechanical installations
and connected to underground utilities shall be supported on a continuous,
frost-free foundation capable of resisting the movement of the slab-on-grade.
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5.
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Cast-in-place concrete foundation walls shall be concrete having
a minimum compressive strength at 28 days of not less than 3,000 pounds
per square inch. The minimum thickness of a wall shall be 7 1/2
inches.
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Walls shall be reinforced with no less than 3, 1/2 inch diameter
deformed ASTM A615 grade 40 steel bars placed horizontally at the
center of the wall, with one bar located near the top, one bar located
near the bottom, and one bar located near mid-height of the wall.
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B. Delete Paragraph R403.1 "General" in its entirety and replace in
lieu thereof the following:
All exterior walls shall be supported on continuous solid or
fully grouted masonry or concrete footings which shall be of sufficient
design to accommodate all loads according to Section R301 of the 2015
International Residential Code. Footings shall be supported on undisturbed
natural soil or engineered fill.
C. Amend Section R403 by adding the following paragraph(s):
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R403.1.1(2) Deck Footings. Deck footings NOT supporting a roof
or over head structure may be a minimum 12 inches in diameter and
42 inches below finished grade.
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R403.1.1(3) Covered Deck and Room Addition Footings. All covered
decks, screened porches; three season rooms, four season rooms, room
additions, and similar structures, shall be supported on foundations
compliant with Table R403.1 or conforming to one of the following
methods:
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1.
Pier footings designed by a design professional.
2.
Twelve inch wide reinforced trench footing 42 inches in depth.
3.
Spread footings 42 inches in depth with a minimum eight inch
masonry wall or concrete foundation wall as per Figure 404.1.3.1(A).
