CHAPTER 350. - INFRASTRUCTURE ARTICLE 1. - STREETS AND SIDEWALKS Section 350-1. - Street classification requirements. (d) Intent. It is the intent of this Article to build streets that are integral components of community design. Streets shall be detailed to complement neighborhoods and commercial centers and shall be pedestrian in scale. Street Classifications. (1) For purposes of this Unified Development Ordinance, all of the public streets, roads and highways in the City except where otherwise noted, are classified as boulevard, primary, secondary, feeder, or local streets, as shown on the Streetscapes and Gateways Map of the appendix. (2) In addition, to the road classification certain streets are also designated on the Streetscapes and Gateways Map as storefront streets. Storefront streets are designed to provide access to local businesses for pedestrians and bicycles over vehicular through-put and as such buildings along such roadways are required to meet the provision of Section 230-29, Storefront Streets. (3) Street improvements. Streets, shall be constructed or improved to the standards as established in this UDO, or as otherwise required by the City Council. Relationship to State Road Construction Standards. (1) All state-maintained roads and intersections shall comply with the standards and specifications of the Georgia Department of Transportation (GDOT). All new roads and intersections which are to be state-maintained shall be constructed to meet those standards. (2) GDOT standards are based on the Federal Highway Administration Functional Classification System, which are separate from the street classification established by the City of Chamblee. (3) Work done within the State rights-of-way is subject to review and approval by both GDOT and the City of Chamblee. (4) All of the materials, methods of construction, and workmanship for the work covered in reference to street construction shall conform to the latest specifications of the Georgia Department of Transportation, "Design Policy Manual," latest edition. Exceptions may be made for pedestrian crosswalk and sidewalk materials, which may vary according to the overall design and character of the development. Streetscape requirements. (1) The dimensions of all streetscape elements, including landscaping, sidewalks, on-street parking, and lighting, are governed by Chapter 230, Standards Applying to All Districts, and Addendum 3.0, Streetscape Guidelines. (2) All streets shall be landscaped as provided in Section 230-26 Streetscape Design and Chapter 320, Article 3. Section 350-2. - Access management. Driveways. (1) Driveways and curb cuts shall meet the following criteria:
a. Interior driveway. Where 90-degree parking is utilized, all interior driveways shall be a minimum of 22 feet in width. If 45- or 60-degree angle parking is used, then interior driveways shall be at least 12 feet in width for one-way traffic and 22 feet in width for twoway traffic. Where parallel parking is utilized or there is no parking, interior driveways shall be a minimum of ten feet in width for one-way traffic and 20 feet in width for two-way traffic. b. All sidewalk paving materials shall be continued across any intervening driveway at the same prevailing grade and cross slope as on the adjacent sidewalk clear zone. A corresponding interior sign or painted bar on the driveway shall be provided adjacent to the sidewalk paving as it intersects the driveway which shall communicate that vehicles must stop or yield for the intervening sidewalk. c. Driveway widths shall be a maximum of 24 feet for two-way entrances or shared driveways, and 20 feet for one-way entrances, unless otherwise permitted by the City of Chamblee Public Works Department or state department of transportation. Residential driveways shall be limited to a maximum of 20 feet in width in the right of way. Apron may be flared up to an additional two feet on either side. d. Driveway curb cuts shall not be permitted on any street that is classified as a boulevard, primary, secondary, or feeder street when access may be provided from a side or rear local street located immediately adjacent to a contiguous property, with the exception of hotel patron drop-off drives. e. Driveways and drive aisles are not permitted between the sidewalk and a building and shall be perpendicular to any adjacent street. f. No more than one curb cut shall be permitted for each development, provided that properties with more than one street frontage may have one curb cut located on each street frontage. However, developments on properties with a single street frontage greater than 400 feet shall be permitted two curb cuts along one street frontage. g. A shared driveway serving two or more adjoining lots may be authorized by the Planning and Development Director based on the application of the following criteria: 1. The shared driveway is desired to improve traffic safety and operations. 2. The shared driveway is necessary in order to provide for reasonable use and development of property due to its size, shape, topography or hydrology. 3. The shared driveway has environmental benefits such as the minimization of impervious surface and the protection of mature vegetation in areas with environmental constraints, such as steep slopes, sub-surface rock, floodplain, and stream buffers or other similar characteristics that would be impacted with the construction of multiple driveways. 4. Ownership of the shared driveway can be established to provide for the perpetual maintenance and repair of the shared driveway in an equitable way that does not encumber the City of Chamblee. 5. Construction standards for the shared driveway will meet or exceed the standards of construction of Sections 350-2 and 350-5. h. All developments other than single-family detached dwellings shall have pedestrian walkways a minimum width of five feet connecting ground level parking to the public sidewalks and to all building entrances. (2) Minimum driveway spacing. All driveways along public streets, except for driveways serving individual driveway lots or single dwelling units, shall meet the following criteria: a. Minimum separation for driveways and streets:
Table 350.1 Minimum separation for driveways and streets Posted Speed (MPH) Minimum Driveway Spacing 25 125 30 219 35 244 40 294 45 369 50 419 55 444 b. Spacing shall be measured from centerline to centerline of driveways or streets. Greater separation may be required for safe operation of intersections and right or left turning lanes. Whenever possible, proposed driveways along one side of a street shall coincide with existing or proposed driveways on the opposite side of such street. If offset driveways cannot be avoided, the same driveway spacing criteria as given in Table 350.1 should be provided. Spacing shall be measured from centerline to centerline. If the street involved is a divided facility and the driveways do not align with a median crossover, the driveway spacing would only apply to the adjacent driveway on the same side of the street as provided in Table 350.1. c. Maximum number of driveways serving a single project: one for each 400' of property frontage, or fraction thereof per street, along a Boulevard, Primary or Secondary Street. d. No new curb cut, driveway, or private street intersection shall be permitted on a street classified as a Feeder, Secondary, Primary or Boulevard without the approval of the Planning and Development Director, if it is within 50 feet of an existing driveway or street intersection. No-access easements along thoroughfares where driveways are discouraged. Land in private ownership adjacent to public rights-of-way which could control or are intended to control access to streets, alleys, or public lands shall not be permitted unless their control is given to the City under ownership, dedication or easement conditions approved by the City Attorney or acceptable to the Planning and Development Director, and the access to abutting properties is provided by an alley, see Subsection 300-12(d), Double frontage or reverse frontage lots. No development shall be designed so as to deny access to abutting properties. See Section 320-22 for landscape requirements within the no-access easement. Requirements for interparcel access. To the maximum extent possible, sidewalks and parking lots serving adjacent lots shall be interconnected to provide continuous driveway connections and
(d) pedestrian connections between adjoining lots and streets, except that this requirement shall not apply to lots zoned for single-family residential units. Where necessary, the City may require access easements be provided to ensure continuous access and egress routes connecting commercial, office, and multifamily lots. Gates and security arms shall be prohibited from crossing any public street or sidewalk. Section 350-3. - Requirements for new streets. Standards for New Streets. (1) All new streets proposed to be dedicated to the City shall be designed at least to the standards contained in this UDO in accordance with the category of said streets (see Section 230-26, Streetscape Design and Addendum 3.0, Streetscape Guidelines). (2) Proposed street layouts shall interconnect within a development and with adjoining development as often as possible. (3) Public or private streets longer than 150 feet shall be connected to a continuous street network. Culs-de-sac or hammerheads shall be allowed only where topographical and/or lot line configurations offer no practical alternatives for connections or through traffic. Maximum cul-desac length is 250 feet in length from the nearest intersection with a street providing through access (not a cul-de-sac). Minimum radius for culs-de-sac shall be 40 feet from back of curb, except for industrial or warehouse areas, where the minimum radius shall be 50 feet from back of curb. The minimum radius of the right-of-way for culs-de-sac shall be 10 feet greater than the radius from back of curb. (4) The following street specifications are provided for non-state-maintained public roads within the municipal limits of the city. In addition to the specifications, all the following designs shall provide a 90-foot minimum tangent between reverse curves on all streets. (5) Streets are encouraged to be designed with on-street parking. Table of Street Specifications for Non-State-Maintained Public Roads Street Type Minimum Right-of-Way Minimum pavement widths face to face of curb Boulevard or Primary 90 feet 44 feet Secondary 70 feet 32 feet Feeder 60 feet 26 feet Local street 50 feet 24 feet Narrow Street (private) See Subsection 350-3(4) 22 feet
Alley (private) NA 11 feet (one-way) or 14 feet with 4 ft. graded shoulder (two-way) Private Streets. (1) Private Streets Permitted. Private streets are prohibited except where necessary and subject to approval by the Planning and Development Director. The Planning and Development Director may impose conditions on the approval of private streets to ensure the health, safety and welfare of the general public and to mitigate potential problems with private streets. (2) General Provisions. a. It shall be unlawful for any person, firm or corporation to construct a new private street or alter an existing private street or to cause the same to be done without first obtaining a development permit for such construction or alteration from the Planning and Development Director. b. All private streets shall be constructed to the roadway base, paving and curbing standards required for public streets and contained herein. No permit for a private street shall be issued unless the proposed roadway improvements are in conformity with the standards and the provisions of this UDO. c. For setback purposes, front setbacks shall be measured as if the streets were public streets, or as approved by individual variances. d. All provisions of the UDO regarding roadways, water lines, sewer lines, stormwater facilities and their appurtenances, including the design, submittal of plans, required improvements, etc., shall apply to all developments with private streets approved pursuant to this Section. e. The subdivider/developer shall establish a mandatory property owners association, with bylaws and/or covenants which shall include the following: 1. Mandatory membership of all purchasers of lots therein and their successors. 2. Responsibility for maintenance, insurance and taxes. 3. Equitable sharing of the cost of maintenance. 4. Authority to place liens on the real property of members who fail to pay their dues or assessments. f. No final plat or development permit involving any private streets shall be approved unless said final plat or development permit conforms to the requirements of this section. (3) Street Names and Address Assignments for Private Streets. a. Proposed names and address assignments for private streets shall follow to the same rules as for public streets, Section 350-8. b. The subdivider of land involving a private street shall install street signs with the street name and designation "private," as approved by the Planning and Development Director. (4) Easements for Private Streets. a. Easements for private streets shall be designated on final plats as general purpose public access and utility easements, along with the name of said private street. Said easement shall at minimum be of the same width as that required for the right-of-way of a public street as shown on the Streetscape and Gateways Map for the type of public street (local,
feeder, etc.) most closely resembling the proposed private street, except that private streets used exclusively for single-family attached dwellings shall be constructed on an easement with a minimum width of 40 feet. b. Easements for private streets shall not be included in any calculation of minimum lot size or density limitations established by this UDO. c. In the cases of private streets where roadway improvements are required, the general purpose public access and utility easement for a private street shall be drawn as its own discrete parcel to be dedicated to a mandatory private homeowners association (i.e., not shown to be a part of any lot). (5) Maintenance. a. The City shall not maintain, repair, resurface, rebuild, or otherwise improve streets, signs, drainage improvements, or any other appurtenances within general purpose public access and utility easements established for private streets. b. Permanent repairs to the streets shall be made by the homeowners associations or other entity having maintenance responsibility for the development. Driveways and sidewalks will be repaved, sodded or landscape areas will be graded, smoothed, reseeded or resodded where appropriate. c. A private maintenance covenant recorded with the Clerk of the Superior Court shall be required for any private street and other improvements within general purpose public access and utility easements established for private streets. The covenant shall set out the distribution of expenses, remedies for noncompliance with the terms of the agreement, rights to the use of easements, and other pertinent considerations. The covenant shall specifically include the following terms: 1. The covenant shall establish minimum annual assessments in an amount adequate to defray costs of ordinary maintenance and procedures for approval of additional needed assessments. The covenant shall also specify that the funds from such assessments will be held by a homeowners or property owners association in cases of a subdivision fronting on a private street. 2. The covenant shall specify that the property owners association shall be responsible for the maintenance and repair of the stormwater drainage system and all common areas within the development. 3. The covenant shall include a periodic maintenance schedule. 4. The covenant for maintenance shall be enforceable by any property owner served by the private street. 5. The covenant shall establish a formula for assessing maintenance and repair costs equitably to property owners served by the private street. 6. The covenant shall run with the land. 7. The Planning and Development Director may, at his or her discretion, as a condition of approving private streets, require a performance bond and/or maintenance bond be submitted by the subdivider and held by a homeowners or property owners association, or the Planning and Development Director may require that the subdivider pay an amount of money as recommended by the Planning and Development Director into an escrow account or other suitable account for the construction, maintenance and repair of private streets to be drawn from by the homeowners or property owners association as the needs may arise. (6) Specifications for final plats involving private streets. No final plat involving a private street shall be approved by the Department for recording unless and until it shall contain the following on the face of the plat:
a. Deed book and page reference to the recorded covenant required in Subsection 350-3(5), Maintenance, as listed above. b. "The City of Chamblee has no responsibility to build, improve, maintain, or otherwise service the private streets, drainage improvements, and other appurtenances contained within the general public purpose access and utility easement or easements for private streets shown on this plat." c. "Grant of Easement. The general purpose public access and utility easement(s) shown on this plat for private street(s) is hereby granted and said grant of rights shall be liberally construed to provide all necessary authority to the City, County, and to public or private utility companies serving the subdivision, for the installation and maintenance of utilities, including, but not limited to, electric lines, gas lines, telephone lines, water lines, sewer lines, cable television lines, and fiber optic cables, together with the right to trim interfering trees and brush, together with a perpetual right of ingress and egress for installation, maintenance, and replacement of such lines. Signature of Property Owner Date" d. "Certificate of Dedication. All water and sewer lines installed within the general purpose public access and utility easement(s) shown on this plat for private street(s) are hereby dedicated to DeKalb County." (7) Requirement for Purchaser's Acknowledgement of Private Street Responsibilities. Prior to the sale or as a condition of the closing of a real estate transaction involving any lot served by a private street in the City of Chamblee, the subdivider or seller of said lot shall execute a notarized purchaser's acknowledgement of private street construction and drainage maintenance responsibilities set forth below. A copy of the purchaser's acknowledgement shall be retained by the purchaser and shall be required to be submitted as a condition of a building permit for a principal building on said lot: "Purchaser's Acknowledgement of Private Street and Drainage Maintenance Responsibility. (I) (We) have read the Declaration of Covenant which pertains to the lot that is the subject of this real estate transaction (insert address or attach legal description). (I) (We) understand that the Declaration of Covenant applies to the lot that (I am) (we are) purchasing and requires (me) (us) to provide a specified percentage or amount of the financing for the construction and maintenance of any private street and drainage facilities serving the lot which (I am) (we are) purchasing, and that owners of other lots in this plat may sue and recover for those costs which this covenant requires (me) (us) to pay, plus their damages resulting from (my) (our) refusal to contribute, plus reasonable attorney's fees. (I) (we) further understand that the City of Chamblee has no obligation to assist with the maintenance and improvement of the private street, drainage facilities, and other appurtenances within the general purpose public access and utility easement for the private road serving the lot in question. I (we) understand that a copy of this purchaser's acknowledgement shall be required as a condition of the issuance of a building permit for a principal building on the lot (I am) (we are) purchasing. Purchaser Date Purchaser Date" Alleys.
(d) (1) Alleys shall be required wherever topography or the presence of a street classified as a boulevard or primary street or other features makes vehicular access from the front of the lot impractical or unsafe. Where the alley serves as the primary means of vehicular access to the lot, it shall be dedicated as a public right-of-way and built to the standards required in this Chapter. (2) Alleys may be permitted as private streets providing secondary or service access and where the principal buildings have adequate access for emergency vehicles from a public street on their frontage. Private alleys may end in a turn-around. (3) All alleys dedicated to the public shall provide a continuous connection between one or more public streets. Alleys shall be paved and constructed to the same standards as the connecting public streets except that: a. The paved width of a one-way alley shall be not less than 11 feet; Two-way alleys shall be a minimum of 14 feet wide with 4-foot graded shoulders; b. Alleys shall be constructed with flush curbs; c. Buildings shall be set back at least 10 feet from the back of curb of an alley; d. All access to garages would be from alley when the lot frontage is less than 50 feet in width. Narrow Streets. (1) Narrow Streets shall be utilized as design alternative in a PUD, or in a single-family subdivision with more than 5 lots as a through street, to slow down vehicular traffic and encourage pedestrian activity. (2) Narrow Streets may be permitted as private streets. (3) All Narrow Streets dedicated to the public shall provide a continuous connection between two (2) or more public streets. Narrow Streets shall be paved and constructed to the same standards as the connecting public streets except that: a. The paved width of a narrow street shall be not less than twenty-two (22) feet, with two travel lanes, each having a minimum width of 11 feet; b. Optional to have parallel parking on either side or both sides where each parallel parking aisle adds 7 feet to street width; c. If parallel parking is used then provide bulb out at the intersection, see Addendum 1.0, Design Guidelines; d. Two-foot curb and gutter on each side of the street; e. Landscape zone of 5 feet on each side with street trees planted 40 feet on center, and streetlights constructed 80 feet on center; f. Sidewalks on both sides at 4 feet each; g. Utilities are underground in 10 feet easements on one or both sides, or as an alternative utilities can be in an easement located in alley; h. Curb radii for corners - minimum 15 feet. Section 350-4. - Street intersections. Angle of intersection. Intersections shall generally be at right angles and shall not be at an angle of less than 85 degrees unless approved by the City, nor less than 80 degrees unless the intersection
(d) (e) is signalized in which case the angle of the intersection may be reduced subject to the review and approval of the Traffic Engineer. Maximum grade. Street intersections should be designed with a flat grade wherever possible, but in no case should the grade exceed 2 percent in normal situations (or 4 percent in topographical hardship situations on local streets). Islands. Islands in street intersections shall conform to the design requirements of the standard drawings. In no case shall anything in an island extend more than three feet above the street grade within the right-of-way, except traffic regulatory devices and other infrastructure erected or approved by the City. No island shall be approved which contains less than 100 square feet. Intersection corner sight distance. See Section 230-7, Corner Visibility. Turning lanes at intersections. Left turning lanes shall be provided where required by DeKalb County, GDOT, or the City to meet traffic demand and safe operations. Right turning lanes may be required to meet traffic demands or safety concerns. When provided, turning lanes shall meet the following criteria: (1) Storage length. A minimum of 150 feet of storage length for turning lanes on any Primary or Secondary street shall be used. A minimum of 100 feet of storage length for turning lanes on all feeders shall be used. (2) Taper Length. The minimum taper length shall be 50 feet. (3) Left turning lanes from a street designated a boulevard or primary street shall be subject to longer storage lengths and tapers an as determined on a case-by-case basis. Section 350-5. - Street design standards. Street Grades and Design Speeds. (1) Minimum grade for all local and feeder streets shall be 1.5 percent. Minimum grades for all streets designated a boulevard, primary, or secondary shall conform to Georgia Department of Transportation. (2) Minimum grade of less than 1.5 percent on a local street may be approved by the City, based on adequate engineering designs, where at least 1.5 percent cannot reasonably be achieved due to topographical limitations imposed by the land. In such cases, a Record Drawing and such computations as necessary shall be provided after construction to establish that the street will drain in accordance with this UDO. Street sections where unacceptable pooling, excessive spread at catch basins, or other hazardous conditions occur shall be reconstructed or otherwise improved to eliminate such conditions. (3) Minimum vehicle design speeds and maximum grades allowable in the City of Chamblee by street classification shall conform to GDOT/DeKalb County DOT standards as appropriate. (4) Maximum grade on any cul-de-sac turnaround shall be six percent. Street paving standards. Street paving shall be subject to the specification provided by the City of Chamblee Planning and Development Department. Section 350-6. - Curbs and gutters. Curb and gutter required. All new streets and Project Access Improvements shall be provided with curb and gutter. All gutters shall drain smoothly with no areas of ponding.
Curbing. (1) Existing granite curbing shall be preserved and re-used except where new curbing is required by the public works department. When an existing street with granite curbing is improved, extended or rebuilt, the curbing for such street improvement, extension or reconstruction shall be granite curbing of a similar size and type as the granite curbing used on such existing street. (2) Otherwise, new curbing shall meet the following requirements: a. Concrete shall be Class "A" (as defined by Georgia Department of Transportation) and have a minimum strength of 3,000 PSI at 28 days. b. Typical minimum section shall be 6" 24" 12". c. See UDO Addendum 3(e) for Typical Curbing Details. d. Roll curbing as shown as Type I in UDO Addendum 3(e) may be permitted subject to approval of the Public Works Director. Construction methods. Curb and gutter shall be set true to line and grade, horizontal be field staked, and finished to the section shown on the plans. Along the Project Access Improvements of a road which the Department of Public Works has identified for resurfacing within one year of the new construction, the grade of the new gutter shall be placed 1" above the Project Access Improvement pavement grade in areas where drainage will not be adversely affected. (1) Line and grade shall be field staked for grades less than two percent and grades over 12 percent, and within 100 feet in both directions from all low points. (2) One-half inch expansion joints or pre-molded bituminous expansion joint material shall be provided at all structures and radius points and at intervals not to exceed 250 feet in the remainder of the curb and gutter. (3) Inferior workmanship or unprofessional construction methods resulting in unacceptable curb and gutter will be cause for rejection of the finished work. (4) Disturbed areas along all curbing shall be backfilled, stabilized and grassed. Section 350-7. - Sidewalks and bikeway construction standards. (d) (e) Pathways shall form a logical, safe and convenient system for pedestrian or bike access to all dwelling units and other buildings and facilities. Pathways shall be so located and safeguarded as to minimize contacts with automotive traffic. Pathways that are appropriately located, designed and constructed may be combined with other easements and used by emergency and service vehicles, but shall not be used by other automotive traffic. Public sidewalks shall be located along both sides of all streets and shall have minimum widths as specified in the street type dimensions table, see Section 230-26. Sidewalk construction standards. Sidewalks and curb ramps shall be constructed in all new development or redevelopment along all abutting or internal streets, existing or new, private or public. Sidewalks shall be constructed in accordance with the requirements of this Section. The Planning and Development Director is authorized to grant modifications upon specific application due to topographic or drainage difficulty as well as alternative design proposals after receiving recommendations from the Public Works Director. Whenever a discrepancy occurs between the design (see Section 230-26, Streetscape Design) and construction standards (this Section) of this UDO and any state or federal regulation, then the most restrictive shall apply. (1) Sidewalk installation and timing. Sidewalks shall be installed as follows:
(f) a. Residential subdivision projects. Sidewalks shall be installed on new internal streets (both sides including "eyebrow" turnarounds, culs-de-sac, and hammerheads) and on adjacent external streets prior to the recordation of the final plat, unless a performance bond is secured pursuant to Section 300-27. b. Nonresidential subdivision projects. Sidewalks shall be installed on new internal streets (both sides including cul-de-sac, hammerheads, and "eyebrow" turnarounds) and on adjacent external streets prior to the recordation of the final plat, unless a performance bond is secured pursuant to Section 300-27. c. Nonsubdivision projects. Sidewalks shall be installed on abutting streets (abutting side) prior to the issuance of a Certificate of Occupancy. d. Performance surety. Performance surety provided to the City shall include the cost of sidewalk curb and ramp construction not yet installed, per the requirements of Section 300-27, Guarantees and Sureties. The surety shall be in an amount acceptable to the City. e. Escrow alternative. The cost of sidewalk installation may be set aside in escrow with the Department of Public Works if proposed road improvements by the City may impact the location of a sidewalk. (2) Sidewalk site preparation and material standards. a. Cross slope. Sidewalks shall be constructed with a cross slope of 0.25 inch per foot. Sidewalks shall maintain this cross slope at driveway crossings or transition the sidewalk to a driveway with ramps and detectable warnings. b. Material. Class "B" (as defined by Georgia Department of Transportation) with a minimum strength of 2,200 PSI at 28 days. c. Final stabilization. Disturbed areas resulting from sidewalk construction shall be backfilled, stabilized, and grassed or landscaped. (3) Sidewalk curb ramp construction standards. Intersection radius curb ramps shall be provided at street intersections. Straight ramps may be provided at intersections of curbed driveways and at streets without sidewalks. Curb ramps shall meet the requirements of DeKalb County. (4) Damage repair. Damage to sidewalks and ramps caused by construction or development activity shall be repaired at no cost to the County within 30 days or prior to issuance of a Certificate of Occupancy, whichever is earlier. Bikeway construction standards. All bicycle routes and lanes, multi-use paths, and greenways shall be designed and developed as follows: (1) Bicycle lanes within the right-of-way. Bicycle lanes, where provided, shall be a minimum of four feet in width and placed between the outside lane of a roadway and the curb or shoulder. When on-street parking is permitted, the bicycle lane shall be between the parking lane and the outer lane of moving vehicles. Lanes shall be delineated with appropriate markings, as required by the Manual on Uniform Traffic Control Devices. Bikeways and bicycle lanes must be preapproved by the City and meet the requirements of the latest edition of the AASHTO "Guide for the Development of Bicycle Facilities," and the latest edition of the NACTO "Urban Bikeway Design Guide." (2) Multi-use paths. Multi-use paths, where provided, shall comply with the provisions of this Section and shall meet the following requirements: a. Width. Multi-use trails and paths shall be a minimum of 10 feet in width. b. Material and construction details. 1. A multi-use path that is constructed in a floodplain, adjacent to a stream, or adjacent to undisturbed land shall be either asphalt or concrete. 2. In all other cases, a multi-use path shall be concrete.
c. Multi-use paths shall be designed to minimize direct auto-pedestrian and/or auto-conflicts by such means as sidewalks, striping and signs. d. Multi-use paths shall be connected to crosswalks at intersections where applicable. e. Multi-use paths shall be in substantial conformity with the provisions of Addendum 1.0, Design Guidelines. (3) Greenways. Greenway paths, where provided shall comply with the provisions of this Section and shall meet the following requirements: a. Width. Greenway paths shall be a minimum of 12 feet in width. b. Material and construction details. 1. A greenway path that is constructed in a floodplain, adjacent to a stream, or adjacent to undisturbed land shall be either asphalt or concrete. 2. In all other cases, a greenway path shall be concrete. c. Greenways shall be designed to minimize direct auto-pedestrian and/or auto-bicycle interaction by such means as sidewalks, striping and signs. d. Greenways shall be connected to crosswalks at intersections where applicable. Section 350-8. - Traffic control devices. Traffic control signs. The installation of street signs, traffic control signs, and devices such as striping and signalization, shall be coordinated with the Public Work Director, and provided through payment of fees to the appropriate agency. Street name signs. Street name signs shall have a green background with white legends mounted on channelized posts. Alternate post material shall be subject to the review and approval of the Planning and Development Director or his/her designee. The posts and signs will be furnished and installed by the City at all street intersections. The developer (or homeowners association, in the event an alternate signpost is chosen at a later date) shall install the signs prior to the recordation of the final plat and shall pay the City's costs. Traffic signals and signs. All traffic signals and signs shall conform to the Manual on Uniform Traffic Control Devices (no decorative traffic control devices will be allowed). Section 350-9. - Traffic calming devices. Traffic Calming Devices shall be compatible with standards outlined in the Georgia Department of Transportation Pedestrian and Streetscape Guide. Subdivision streets shall be designed in accordance with the above so as to encourage and maintain maximum operating speeds of no more than 25 mph.. The maximum length of roadway section between speed control points shall be 500 feet. The traffic-calming plan is subject to review and approval by the Planning and Development Department. The Planning and Development Director may grant modifications. Sections 350-10 350-15. - Reserved.
ARTICLE 2. - DRAINAGE SYSTEM Section 350-16. - Culverts and pipe collection system guidelines. Storm drainage profile drawing. (1) No main line storm pipe shall be less than 15 inches diameter; (roof laterals and landscape drainage are exempted from this requirement); (2) No pipe shall have a slope greater than 12 percent; (3) If a drop in a structure is greater than five feet, a reinforced base shall be provided for that structure; (4) No Corrugated Metal Pipe (CMP) shall be used in any publicly maintained road right-of-way; (5) No outfall pipe shall have a slope greater than one percent. Maximum allowable velocity for storm sewer exit pipe is ten feet per second when flowing full or half-full, based on Manning's Formula. Energy dissipater is required for exit velocity in excess of five feet per second; (6) Open channel design must show the grade of the flow line of the channel and include a typical ditch section that provides a non-erodible velocity at design flows. Channel slopes less than one percent may be grassed; for channel shapes greater than 12 but less than three percent the designer must demonstrate calculated velocity at or less than five feet per second including a channel lining for design to accommodate the design philosophy; channel slopes over three percent must be approved by the city; (7) Crown elevations must be matched at each junction structure or the upstream crown must be higher than the downstream crown. Stormwater easements specifications are provided in subsection 340-39(7). Section 350-17. - Walls. See Subsection 340-39(5) for limitations for installing retaining walls as a part of structural stormwater systems. Sections 350-18 350-23. - Reserved. ARTICLE 3. - PUBLIC UTILITIES INSTALLATION Section 350-24. - Installation of public utilities administrative requirements. Installation of public utilities shall meet the requirements of DeKalb County Code of Ordinances and corresponding administrative requirements. Section 350-25. - Underground electric and communication utilities. Utilities, including telephone, electric power and cable television in both public and private rights-ofway, shall be placed underground for all new developments with total floor areas 20,000 s.f. or over,
(d) except when extreme conditions of underlying rock or other conditions prevent this requirement from being met or as provided in paragraph below, and only as approved by the Planning and Development Director. A City fund, known as the "The City of Chamblee Utility Conversion Fund" is hereby created. The purpose of said fund is to accent deposits as described in paragraph below, along with other funds or grants apportioned by the Mayor and City Council, and the use of such funds shall be restricted for the sole purpose of offsetting the cost of projects undertaken by the City that bury or relocate power lines from streets and sidewalks. In cases where the expense to bury overhead utilities for new developments described in paragraph, above, is deemed to be unreasonably costly due to the complexity of the work, the developer may request approval from the Planning and Development Director of a fee-in-lieu arrangement with the project developers, whereby the developer shall make a contribution toward the City's Utility Conversion Fund in lieu of requiring burial of the utilities. Such fee-in-lieu arrangement shall be based on a cost per linear foot of such underground relocation of utilities established by the Mayor and City Council, and it may be adjusted from time to time by City Ordinance. The developer shall have the choice of burying of utilities, or paying to the City the fee-in-lieu of such utility burying work, prior to any certificate of occupancy being issued for structures in any phase abutting the right-ofway within which the overhead utilities are situated. In all residential or commercial condominium developments: (1) Individual systems for water, sewer, and HVAC shall be required for each unit. (2) Individual metering shall be provided for all utilities. (3) Easements for utility lines shall be provided in the common ownership area where lateral service connections shall take place. Sections 350-26 350-49. - Reserved. ARTICLE 4. - STREET LIGHTING AND OTHER FURNITURE Section 350-50. - Authority and responsibility. Except as otherwise provided for in Section 350-51, the responsibility for providing street lighting and other furniture for public streets, sidewalks and multi-use trails in the City rests with the Mayor and City Council. No lighting of the streets, sidewalks or multi-use trails in City is permitted unless provided for by the Mayor and City Council. Section 350-51. - Applicability. Street and pedestrian lighting and street furniture shall be provided by the developer in new developments which propose the construction of a new street to be dedicated to the City or which propose lot access to existing City streets. Section 350-52. - Procedures.
Installation of street and pedestrian lights. The installation and operation of lighting fixtures located within the rights-of-way of any public street, road, highway, sidewalk or alley in the unincorporated areas of the City or fixed to any pole, lamppost, standard or other supporting device which is located within such rights-of-way, will comply the following procedures: (1) Plans and specifications for the proposed installation showing compliance with the standards in this Section shall be submitted to the Planning and Development Director for approval. No installations will be made without this approval. (2) Roadway or street lighting luminaries or fixtures installed within the public rights-of-way as "security lights" or for the purpose of lighting areas other than the public streets shall require the approval of the Planning and Development Director thereof before installation of such lights. (3) Fixtures for illuminating areas adjoining the public streets, roads, and the like, such as parking areas and driveways, shall be mounted in such a manner as to ensure that the light pattern is kept off the public roadway. When street or roadway lighting luminaries are to be used for security lighting, they will be mounted on the side of the pole that is opposite from the public street and will be mounted to ensure that the lateral light distribution pattern is parallel to the street and the vertical light distribution at the initial light source is perpendicular to the street. (4) If lighting fixtures of a type other than those in the classification of street or roadway luminaries are to be used or if the proposed lighting is to be installed outside of public rights-of-way, the plans and specifications submitted will be sufficiently detailed to clearly show that such shall be installed and operated in such a manner to prevent glare from being a hazard to or interfering with the normal use of the public rights-of-way. Street lights for new subdivisions. (1) Prior to the approval of a Final Plat, the developer shall submit and prepare a street light design drawn on the approved Preliminary Plat based upon the requirements of this UDO. The design shall be forwarded to the appropriate power provider and the developer shall pay the power provider the appropriate cost for materials and installation. Proof of payment to the power provider shall be required. (2) All fixtures and poles shall meet the specification requirements of the City pursuant to the specification in Section 350-54 and all maintenance shall be the responsibility of the power provider. The City, in addition to other requirements, may require a light to be located at street intersections within the development. (3) Upon acceptance of the street light installation by the City, the power provider shall submit monthly bills to the Planning and Development Director for payment. The City shall assign a special assessment to each property abutting a street with street lights for payment of the monthly utility costs in accordance with the provisions of this Article 4 of the UDO. Street Light Request Process for Existing Public Streets. This policy follows the standard City process for citizen response to provide uniformity and ensure responsiveness and accountability. (1) Requests for new street lights and/or changes in existing street lights on existing streets must be made in writing to the Public Works Director. Requests should include the primary concern and an individual contact person for follow up. Requests will be logged into the City's tracking system and included on the list of street light requests. (2) When an organized group is active, i.e., homeowners association (HOA), civic association or other, the request shall be submitted by that entity. If no formal group exists, the request may be made by an individual or group of individuals. (3) Requests for street light changes may include, but are not limited to, the following: a. Additional/fewer lights; b. Rearrangement of lights; c. Refurbishing of lights.
(d) (4) Upon receipt of the street light request, a field inspection may be conducted by City staff to determine the existing lighting conditions including number of street lights, locations, spacing, fixture types, poles, and any other pertinent information. An inspection may take place at night hours if deemed necessary. (5) Findings are documented and the results are presented to the Planning and Development Director for direction. As directed by the Planning and Development Director, the Director shall notify the identified contact person of the findings and recommendations. (6) If installation is recommended, the community shall circulate a petition to the impacted neighboring property owners. The impacted neighboring property owners are defined as any property owner that has all or a portion of their property within a 250-foot radius of a requested street light modification. The requestor must obtain approval of at least 65% of the property owners petitioned unless a single light is requested, at which point 100% of the property owners must be in favor of the additional street light. All properties in the impacted area must be contacted. If a property owner does not respond, it will be counted as a no vote. If a safety problem can be documented, the Director will recommend to the Planning and Development Director to waive the petition process. (7) Once the petition is verified, a map shall be drawn of the area showing any existing street lighting. (8) Contact shall be made by City staff with the power utility provider and a meeting shall take place, if necessary, to discuss various options. The power utility provider shall later supply their recommendations and estimated costs, including installation and monthly billings, to City staff. (9) The map shall be updated to show proposed lighting and submitted to the Planning and Development Director with all supporting documentation for review. The street light request will be implemented at the direction of the Planning and Development Director. Appeal of decisions. Should the Planning and Development Director thereof disapprove the request to install or operate lighting fixtures within any public right-of-way, he shall communicate the disapproval in writing to the party requesting the same. The written communication shall include the specific reasons for disapproval. Any appeal of a light or lighting system decision would follow the procedures outlined in Section 280-15. Section 350-53. - Standards of installation and operation. The American Standard Practice for Roadway Lighting, as sponsored by the Illuminating Engineering Society and approved by the American Standards Association on July 11, 1973, is hereby adopted as the standard, except as noted in Subsection of this Section, for installation and operation of street and roadway lighting in the City of Chamblee. Lighting fixtures installed within the public rights-of-way to be operated for the purpose of street illumination shall comply with these standards. The minimum average horizontal foot-candle illumination level by roadway classification shall be as set forth in the table below. Minimum Average Horizontal Foot-candle Illumination Level Roadway Classification Commercial Area Intermediate Area Residential Area Secondary, Primary or Boulevard 2.0 1.2 0.9
Feeder 1.2 0.9 0.6 Local 0.9 0.6 0.2 The uniformity of illumination shall be such that the point of lowest illumination shall have at least one-third of the average horizontal foot-candle required illumination level, except that on local streets it may be not less than one-sixth of such average. Section 350-54. - Fixture specifications. The following specifications are required for all street and pedestrian lighting and all other street furniture, unless a similar fixture is approved by the Planning and Development Director, as required to be installed in accordance with the UDO and the City's Smart Park Design Manual: (1) Trash Receptacle: a. Manufacturer: Victor Stanley, Inc. b. Type: Model S-424, 36 Gallon. c. Color: Powder-coated black metal. (2) Bench: a. Manufacturer: DuMor, Inc. b. Type: Bench Series 57 or 91. c. Color: Powder-coated black metal with wood plastic seat with back, or approved equal. (3) Pedestrian Light: a. Manufacturer: Holophane, or approved alternative. b. Type: Granville fixture with Grand post. Fixture shall be full cut-off. Poles to be round, nondecorative, tapered aluminum. c. Light: LED; 3000 Kelvin; 76 Watts. d. Color: Powder-coated black metal. (4) Street Light: a. Manufacturer: Holophane, or approved alternative. b. Type: Memphis Series standard teardrop with Boston Harbour crossarm. Fixture shall be full cut-off. Poles to be round, non-decorative, tapered aluminum. c. Light: LED; 3000 Kelvin; 76 Watts. d. Color: Powder-coated black metal.