Article 6 — Access and Right of Way Requirements and Street Improvement and Construction Requirements
Access
be arranged and designed so as to allow for the opening of future streets and to provide access to those areas not presently served by streets.
parcels of land. Every development shall be designed to facilitate access to adjoining properties which are developed or anticipated to be developed in a manner substantially similar to the subject property. Locations of interparcel access shall be as required by and subject to the approval of the City.
located shall provide vehicular access directly from a public street along the frontage or along any other property line which abuts a public street, except as provided in Section 6.1.5.
shall be constructed to the roadway construction standards of the City of Sugar Hill, as contained herein.
Streets.
Right-of-Way for all Project Public streets, existing and proposed, shall be dedicated in accordance with the street classifications as shown on the Long-Range Road Classification Map of the Comprehensive Plan.
Streets, whether existing or new, shall be constructed or improved under those circumstances and to the standards as established in these Regulations. Roadway improvements shall be in accordance with the street classifications as shown on the Long-Range Road Classification Map of the Comprehensive Plan, or the Zoning Ordinance, as applicable, or as otherwise required by the City Council.
Minimum Right-of-Way and Street Improvements.
Minimum widths for new construction (new streets or Project Access Improvements) shall be as shown on the following Table 6-A.
| Street Category | Minimum Right-of-Way () 1 | Minimum Roadway () 2 |
|---|---|---|
| PRINCIPAL ARTERIAL | 120' TO 150' | 6 THROUGH LANES |
| MAJOR ARTERIAL | 100' TO 120' | UNDIVIDED 67' |
| 100' DIVIDED 2 X 29' | ||
| 6 LANES | ||
| MINOR ARTERIAL | 80' TO 100' | 52' TO 67' |
| MAJOR COLLECTOR | 80' | 52' |
| MINOR COLLECTOR | 60 TO 80' | 28' |
| LOCAL STREET NONRESIDENTIAL | 60' () 3 | 32' |
| NONRESIDENTIAL CUL-DE-SAC | 60' RADIUS | 50' RADIUS |
| RESIDENTIAL - URBAN | 50' | 27' |
| RESIDENTIAL - URBAN CUL-DE-SAC | 50' RADIUS | 40' RADIUS |
| RESIDENTIAL - RURAL () 4 | 60' | 24' |
| RESIDENTIAL - RURAL CUL-DE-SAC () 4 | 60' RADIUS (4) | 40' RADIUS |
| RESIDENTIAL – CONSERVATION (5) | 44’ (5) | 22’ (5) |
| RESIDENTIAL – CONSERVATION CUL-DE-SAC (5) | 50’ RADIUS (5) | 40’ RADIUS (5) |
| FOOTNOTES: (1) The greater right-of-way width shall apply under circumstances as described in Section 6.3.2 (c.). (2) Roadway width dimensions are back-of-curb to back-of-curb except where noted. (3) Utility easement shall be provided in a location and size as required by the Gwinnett County Department of Public Utilities. (4) May be reduced to 50 feet if curb, gutter, and piped drainage system is provided. (5) Only allowed for new local streets in a single family residential subdivision under the Agricultural and Forest (AF) zoning classification. The first 300 feet upon entering from a street with a more restrictive category shall have a right-of-way width of at least 50 feet and pavement width of at least 24 feet. Sidewalk width may be reduced to four (4) feet and is only required on one side of the street as long as continuous accessibility is provided along the entire length of the street. |
City.
General Layout Requirements.
The arrangement, character, extent, width, grade, and location of all streets shall conform at a minimum to the Comprehensive Plan and these Regulations.
Local streets shall be so laid out that their use by through traffic will be discouraged.
Minor collectors shall be provided to channel through traffic movements within a development, where appropriate to the design and a major thoroughfare is not proposed by the Comprehensive Plan. Minor collectors also may be provided as central routes within large residential subdivisions, where appropriate to the design, based on project traffic demands exceeding 2000 trips per day (ADT).
Where a development borders on or contains a railroad right-of-way, or limited access highway right-of-way or major thoroughfare, a public street may be required to be constructed and dedicated within the development approximately parallel to and on each side of such right-of-way.
Half-streets (new boundary streets having one-half of the minimum required right-of-way or pavement width) shall not be allowed nor access to same be permitted should it exist.
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 City Manager. No development shall be designed so as to deny access to abutting properties.
Alleys shall not be provided except where the subdivider produces evidence satisfactory to the City Manager of the need for same. In the event the City Manager approves a design which proposes alleys, the alley shall be constructed as though it were a local street pursuant to the standards contained in these Regulations.
Traffic Control Devices
Street signs, traffic control signs, and devices such as striping and signalization, shall be provided through payment of fees to the Gwinnett County Department of Transportation for the installation thereof.
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 Gwinnett County Traffic Engineer. The posts and signs will be furnished and installed by the County at all street intersections. The developer (or homeowners association in the event an alternate signpost is chosen at a later date) shall pay the County's costs.
All traffic signals and signs shall conform to the Manual on Uniform Traffic Control Devices (no decorative traffic control devices will be allowed).
All newly constructed streets having 4 or more lanes (including auxiliary lanes) and existing streets being widened with one or more additional lanes shall be striped or the payment of said striping costs shall be required from the Developer by the Gwinnett County Department of Transportation prior to the Approval of Development Conformance for the project. Striping shall be accomplished with paint meeting Georgia DOT standards conforming to the Manual on Uniform Traffic Control Devices.
Payment for materials and installation of street name and traffic control signs in new developments shall be required by the Gwinnett County Department of Transportation prior to the Approval of Development Conformance.
The installation of all street lighting fixtures within City right-of-way must be approved by the City or the Gwinnett County Department of Transportation prior to such installation.
Specifications.
Unless otherwise specifically set forth herein, 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 (Georgia DOT).
Subgrade Preparation for All Streets.
Regulations.
unstable material, such material shall be removed and replaced with suitable material and then thoroughly compacted as specified for fill or stabilized with stone or a geo-textile or geo-grid.
measurement). Moisture content shall be adjusted as necessary to compact material to 95% of maximum dry density except for the top 12" which shall be compacted to 100% of maximum dry density.
utilities have been installed within the right-of-way as appropriate, and the backfill in all such ditches thoroughly compacted, the subgrade shall be brought to the lines, grades, and typical roadway section shown on the plans.
tests at the rate of one per 150 feet of trench shall be provided to verify compaction.
approval of the City, a geo-textile or grid may be used to stabilized a subgrade that does not pass proofrolling.
a layer of stone (except crusher run) shall be laid as a traffic surface. This material shall not be used as a part of the base material. It may be worked into the subgrade, or it shall be removed before the base course is set up for paving.
paving is delayed. A break in the berm section is required when the curbing has not been constructed. After installation, drainage under the curb to side slopes is required, using minimum 4 inch diameter pipe sections.
Project Access Improvement Standards.
standards for new streets, in accordance with the street's category as shown on the Comprehensive Plan. The base course must pass roll testing prior to paving. If a delay in paving is reasonably expected by the Developer or the City, the base shall be primed with 0.25 gallon of R.C. 70 per square yard and cured for 78 days before paving.
and minor collector streets) and 1 1/2 inches of "E" or "F" topping shall be required.
New Local and Minor Collector Streets.
Where allowed (upgrading off-site substandard streets), Local Residential-Rural Streets do not require curb and gutter. The road base shall be extended 1 foot beyond the edge of pavement, and the shoulders shall extend 8 feet from the edge of pavement to a standard ditch section on each side (see Standard Drawings). Otherwise, the roadway shall comply with the standards for new residential subdivision streets, above.
The following standards shall apply to new local and minor collector streets in nonresidential subdivision and other nonresidential projects. The following types of base materials may be used:
The base course shall consist of at least 8 inches of graded aggregate base. After being thoroughly compacted and brought to proper section 2 inches of "B" binder shall be applied. If a delay in paving is reasonably expected by the Developer or the City, the base shall be primed with 0.25 gallon of R.C. 70 per square yard the same day it is compacted, and cured for 7 days prior to paving. The final 1 inch of type "E" or "F" wearing course shall be applied after 90% of the buildings on the street have been built, or prior to 18th month of the maintenance period (but after the 11th month), whichever occurs first.
Prior to applying wearing course, a tack coat shall be applied to the binder course at a rate of no less than 0.05 gallons per square yard. Type of tack shall be approved by the City prior to placement.
New Major Thoroughfares.
Gwinnett County, or Georgia DOT, or, if no design has been prepared, to the following standards as indicated by Table 6-B:
| STREET CATEGORY | BASE | BINDER | TOPPING |
|---|---|---|---|
| Principal Arterial | 10" GAB | 5"* | 1 1/2" E or F |
| Major Arterial | 10" GAB | 4" B | 1 1/2" E or F |
| Minor Arterial | 10" GAB | 3" B | 1 1/2" E or F |
| Major Collector | 10" GAB | 3" B | 1 1/2" E or F |
| Minor Collector | 8" GAB | 2" B | 1 1/2" E or F |
| *2 1/2" type "B" binder and 2 1/2" asphaltic concrete base. |
Curb and Gutter.
except in improvements to substandard streets, where swale ditches may be provided in lieu of curb and gutter. All gutters shall drain smoothly with no areas of ponding.
Industrial or commercial curbing shall meet the following requirements:
Principal Arterial and Major Arterial curbing shall meet the following requirements:
Underground Utilities.
installed and the ditches backfilled and thoroughly compacted before any pavement or base is installed.
be bored or other wise comply with Section 7.5, Street Cuts.
the roadway section.
Sidewalks.
Sidewalks shall be constructed in accordance with the Design Standards contained in this Subsection unless a Modification is granted by the City Manager.
Sidewalks shall be installed prior to the issuance of a Certificate of Occupancy or Final Plat approval in accordance with this Subsection unless a performance bond is posted. The cost of sidewalk installation may be set aside in escrow where proposed road improvements may impact the location of the sidewalk.
Article 7. Utilities and Easements.