330-10.1Conformance with Zoning Resolution. Development Plans shall conform to all conditions of zoning as indicated on any applicable zoning resolutions pertaining to the property.

330-10.2Scale. Development Plans and other applicable plans shall be clearly and legibly drawn at an engineering scale convenient to illustrate the details of the project. Sheet size shall not exceed 42 inches by 36 inches. Plan and Profile sheets, if any, shall have a horizontal scale of no less than 100 feet to 1 inch and a vertical scale of no less than 10 feet to 1 inch.

330-10.3Project Boundary Data.

A.

Development Plans shall be based on the boundaries of a lot as recorded on a Final Subdivision Plat or on a certified boundary survey delineating the entirety of the property contained within the project and tied to a point of reference (tie point) with the same degree of accuracy as the boundary survey itself. The survey shall have an accuracy of no less than 1 in to 10,000 feet and shall meet all requirements of Georgia Law regarding the recording of maps and plats.

B.

Each Development Plan shall be drawn on, accompanied by, or referenced to a boundary survey which shall at least meet the requirements of Subsection 320-10.3A, above.

330-10.4List of what is required to be shown. Development Plans shall contain the following (on one or more sheets):

A.

Proposed name of development. If the project is located within a subdivision, the name of the subdivision, lot, and block number must also be shown.

B.

Name, address, email address, and telephone number of the owner of record, and of the developer (if not the owner).

C.

Name, address, email address, and telephone number of each professional firm associated with the Development Plans (engineer, landscape architect, etc.).

D.

Date of survey, north point, and graphic scale, source of datum, date of plan drawing, and space for revision dates.

E.

Proposed use of the site, including gross square footage for each different use type or building.

F.

Location, District, Land Lot(s) and Parcel(s) acreage or area in square feet, and density (if applicable).

G.

Location sketch locating the development in relation to the surrounding area with regard to well-known landmarks such as major thoroughfares or railroads. Sketches may be drawn in freehand and at a scale sufficient to show clearly the information required, but not less than 1 inch equal to 2,000 feet. U.S. Geological Survey maps may be used as a reference guide for the location sketch.

H.

Size and location of all buildings, building setback lines, minimum yard lines, and distances between buildings and from buildings to property lines; location of outdoor storage areas; parking and loading areas, driveways, curb cuts and designated fire lanes. Each building shall be identified with a number or letter.

I.

Boundary lines of the perimeter of the tract indicated by a heavy line giving lengths to the nearest one-hundredth of a foot and bearings to the nearest second. Bearing and distance to designated tie point.

J.

Directional flow arrows for street and lot drainage and minimum floor elevations for all structures.

K.

Contour lines based on sea level datum. These shall be drawn at intervals of not more than two feet and shall include the entire site and all abutting public streets. Contour lines shall be based on field surveys or photogrammetric methods from aerial photographs. The basis for the topographic contour shown shall be specified and dated.

L.

Natural features within the proposed development, including drainage channels, bodies of water, and other known significant features such as extensive exposed rock. On all water courses the direction of flow shall be indicated. The 100-year floodplain shall be outlined, and the source of the depicted floodplain information shall be indicated. The acreage or area in square feet within the floodplain shall be indicated.

M.

Man-made and cultural features existing within and adjacent to the proposed development including existing right-of-way measured from centerline, pavement widths, and names of jurisdiction lines; existing structures on the site and their disposition, Chattahoochee River Corridor information and Chattahoochee River Tributary Protection Areas (if applicable), and other significant information. Location and dimensions of existing bridges; water, sewer, and other existing utility lines and structures; culverts and other existing features shall be indicated.

N.

Street names, roadway and right-of-way lines and widths and sites reserved through covenants, easement, dedication or otherwise for public uses.

O.

Identify unit number, division, or stage of development, if any, as proposed by the developer.

P.

Show all adjoining property owners, subdivision names, lot numbers, lot lines and block letters, and zoning.

Q.

Show the location and number of parking spaces according to the size of the building on the plans. Show factors used in determining number of spaces as required in this UDO. Parking spaces for persons with disabilities shall be shown as required by the Official Code of Georgia and any other applicable state laws.

R.

Show the zoning district, rezoning and special use permit case number(s), date of approval, and conditions. Show Modification, Waiver, or Variance case number(s),date of approval, and conditions. .

S.

If buffers, other landscaping or screening treatments, or vegetation and landscaping stormwater BMP's are required, show the location, size, and type (natural or planted) on the plans conforming to the Tree Preservation/Replacement Plan or Buffer and Landscape Plan, as applicable.

T.

Location, height, and size of all freestanding signs to be erected on the site, and indication whether lighted or unlighted.

U.

Location of all known existing landfills and proposed on-site bury pits (State EPD Permit, and Gwinnett County Special Use Permit or other approval may be required).

V.

Such additional information as may be reasonably required to permit an adequate evaluation of the project.

W.

Certificate of Development Plans Approval.

Each Site Plan shall carry the following certificate printed or stamped thereon:

All requirements of the Gwinnett County Unified Development Ordinance (UDO) relative to the preparation and submission of a development plans having been fulfilled, and said application and all supporting plans and data having been reviewed for code compliance by all affected County Departments as required under their respective and applicable regulations, approval of this development plan is hereby granted and all other development plans associated with this project shall be subject to all further provisions of said UDO.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

330-20.1Conformance with Zoning Resolution Development Plans shall conform to all conditions of zoning as required by any applicable zoning resolutions pertaining to the property.

330-20.2Scale. Development Plans shall be clearly and legibly drawn at a scale of not less than 100 feet to 1 inch. Sheet size shall not exceed 48 inches by 36 inches. Plan and Profile sheets shall have a horizontal scale of no less than 100 feet to 1 inch and a vertical scale of no less than 10 feet to 1 inch.

330-20.3Certified Boundary Survey.

A.

Development Plans shall be based on a Certified Boundary Survey delineating the entirety of the property contained within the Subdivision and tied to a point of reference (tie point) with the same degree of accuracy as the boundary survey itself. The survey shall have an accuracy of no less than 1 in 10,000 feet and shall meet all requirements of Georgia Law regarding the recording of maps and plats.

B.

Development Plans shall be drawn on, accompanied by, or referenced to a Certified Boundary Survey which shall at least meet the requirements as described above.

330-20.4List of what is required to be shown. Development Plans shall contain the following:

A.

Proposed name of subdivision.

B.

Name, address, email address, and telephone number of the owner of record, and of the subdivider (if not the owner).

C.

Name, address, email address and telephone number of each professional firm associated with the Development Plans (engineer, surveyor, landscape architect, etc.).

D.

Date of survey, north point, and graphic scale, source of vertical datum, date of plat drawing, and space for revision dates.

E.

Proposed use of the site, such as single-family detached residences, duplexes, townhouses, office park, industrial subdivision, etc. For residential, indicate total number of dwelling units within plat.

F.

Location, District, Land Lot(s) and Parcel(s), acreage, and density (if applicable).

G.

Location sketch locating the subdivision in relation to the surrounding area with regard to well-known landmarks such as major thoroughfares or railroads. Sketches may be drawn in freehand and at a scale sufficient to show clearly the information required, but not less than 1 inch equal to 2,000 feet. U.S. Geological Survey maps may be used as a reference guide for the location sketch.

H.

Name of former subdivision, if any or all of the land in the Development Plans has been previously subdivided, showing boundaries of same.

I.

Boundary lines of the perimeter of the tract indicated by a heavy line giving lengths in feet and hundredths of a foot, and bearings in degrees, minutes, and seconds. Bearing and distance to designated tie point.

J.

Directional flow arrows for street drainage and individual lot drainage as well as minimum floor elevations for each lot. Each lot to be labeled as slab, basement, or slab/basement.

K.

Contour lines based on sea level datum. These shall be drawn at intervals of not more than 2 feet. Contour lines shall be based on field surveys or photogrammetric methods from aerial photographs. The basis for the topographic contour shown shall be specified and dated.

L.

Natural features within the proposed subdivision, including drainage channels, bodies of water, and other known significant features such as extensive exposed rock. On all water courses the direction of flow shall be indicated. The 100-year floodplain shall be outlined, and the source of the depicted floodplain information shall be indicated. For those lots containing floodplain, a Floodplain Lot Chart shall be provided showing the area (in square feet) of each lot lying inside and outside of the floodplain as though the land-disturbing activity were completed.

M.

Man-made and cultural features existing within and adjacent to the proposed subdivision including existing right-of-way measured from centerline, pavements widths, and names of existing and platted streets; all easements, city, and County jurisdiction lines; existing structures on the site and their disposition, Chattahoochee River Corridor information and limits of Chattahoochee River Tributary protection Area (if applicable), and other significant information. Location and dimensions of existing bridges; water, sewer, and other existing utility lines and structures; culverts and other existing features shall be indicated.

N.

Proposed layout including lot lines, lot numbers, and block letters; proposed street names, roadway, and right-of-way lines; and, sites reserved through covenants, easement, dedication, or otherwise for public uses. Lots shall be numbered in numerical order and blocks lettered alphabetically.

O.

The minimum building setback line from all streets. Streets shall be dimensioned to show right-of-way and roadway widths, central angles, intersection radii, and cul-de-sac roadway and right-of-way radii. Centerline curve data shall be provided for all roadway curves [radius, length, amount of super elevation (if any), point of curvature (P.C.), point of tangency (P.T.), etc.] if not shown separately on construction drawings.

P.

Identify unit number, division, or stage of development, if any, as proposed by the subdivider.

Q.

Existing zoning of the property. Rezoning, modification, waiver and variance case numbers, dates of approval and conditions (as applicable). Note minimum lot size and minimum building setback requirements, and other applicable zoning requirements. Show and dimension any required buffers, landscape strips, no-access easements, etc.

R.

All adjoining property owners, subdivision names, lot numbers and lot lines, block letters, and zoning.

S.

Location of all known existing or previously existing landfills.

T.

Proposed recreation area, common area, conservation space, if any, the area of each site and percent of site within the 100-year floodplain, proposed disposition of the site (public ownership, homeowners association, etc.). If these areas are required, provide calculation of the required and provided areas.

U.

Such additional information as may be reasonably required to permit an adequate evaluation of the subdivision.

V.

Certificate of Development Plans approval.

Development Plans shall carry the following certificate printed or stamped thereon:

All requirements of the Gwinnett County Unified Development Ordinance (UDO) relative to the preparation and submission of development plans having been fulfilled, and said application and all supporting plans and data having been reviewed for code compliance by all affected County Departments as required under their respective and applicable regulations, approval of these development plans is hereby granted, on this development plan and all other development plans associated with this subdivision, shall be subject to all further provisions of said UDO.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

330-30.1 Development Plans shall be accompanied by other plans showing the following information when same is not shown on, or evident from the Development Plans. The various plans may be combined where appropriate, and clarity can be maintained.

A.

Erosion, Sedimentation and Pollution Control Plan prepared in accordance with the requirements of this UDO. Erosion control measures may be shown on the Grading Plan, if allowed by the Department.

B.

Grading plan, prepared in accordance with the requirements of this UDO.

C.

Stormwater drainage construction data prepared in accordance with the requirements of this UDO and the Gwinnett County Storm Sewer Pipe Standards, including but not limited to:

1.

Location and size of all proposed drainage improvements, and all proposed drainage easements to be located outside street right-of-way lines.

2.

Profiles of all storm drainage pipes and slope of receiving channels. Hydraulic grade line is to be shown on all pipes (except roof drains) for the required design flow. On storm drainage profiles a pipe chart will be shown which will include: pipe numbers, pipe size, pipe material, pipe slope, pipe length, contributing drainage area, design flow, design storm frequency, runoff coefficient and velocity. On all pipes, the hydraulic grade line shall be shown.

3.

Profiles of all open channels and ditches including the design flow, normal depth, and velocity. On storm drainage profiles an open channel chart will be shown which will include: open channel numbers, conveyance size, lining material, length, channel slope, contributing drainage area, design flow, design storm frequency, runoff coefficient and velocity for the required design flow.

4.

Acreage of drainage areas and Hydrological study used in determining size of structures, including map of all contributing drainage basins and acreages.

D.

Sewage disposal plans prepared in accordance with the requirements of the current Water Main and Sanitary Sewer Design and Construction Standards and Specifications, including but not limited to:

1.

Sanitary Sewer Plans, including the profiles and other information as may be required by the Department of Planning and Development.

2.

For projects proposed to be served by on-site sewage disposal systems, location, and extent of septic tank, drain field and attendant structures, and other information required by the Environmental Health Section.

E.

Street widening and construction data prepared in accordance with the requirements of this UDO, including but not limited to:

1.

Centerline profiles and typical roadway sections of all proposed streets, as well as plans and profiles for all proposed major thoroughfares. Profiles (and plans, where required) shall be drawn on standard plan and profile sheet with plan section showing street layout, pavement and right-of-way width, curvature, and required drainage facilities. Typical roadway sections shall be provided for street widenings.

2.

Profiles covering roadways that are extensions of existing roadways shall include elevations at 50-foot intervals for such distance as may be adequate to provide continuity consistent with the standards required by this UDO for street improvements, but no less than 200 feet.

3.

All elevations shall be coordinated and sited into U.S. Coast and Geodetic Survey or Department of Transportation benchmarks where feasible or into reference monuments established by the Federal Emergency Management Agency.

F.

Utility Plans.

G.

Specimen Tree Survey.

H.

Specimen Tree Concept Plan, if applicable.

I.

Tree Preservation and/or Replacement Plan prepared in accordance with this UDO.

J.

Buffer and Landscape Plan. If any such areas exist within the site, the plan shall be prepared in accordance with the specifications and requirements contained within this UDO.

K.

Floodplain Management Plans if any floodplain areas are located on the property. Such data as is required by this UDO shall be submitted.

L.

Water System Plans prepared in accordance with the requirements of the Water Main and Sanitary Sewer Design and Construction Standards and Specifications, including but not limited to:

1.

Water Main Extension plans, if any, are to be designed in accordance with the current Water Main Specifications.

2.

Private Water System Plans, if any, indicating proposed devices, water main size and location, with fire hydrants, on the site. The distance and direction to all other fire hydrants within 500 feet of the site or buildings along existing streets or other access drives shall also be indicated.

M.

Street striping plan, showing striping in accordance with the Manual on Uniform Traffic Control Devices, for any street newly constructed to four or more lanes, and all newly constructed or widened major thoroughfares.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

330-40.1 Development Plans shall be accompanied by other plans showing the following information when same is not shown on, or evident from the Development Plans. The various plans may be combined where appropriate, and clarity can be maintained.

A.

Preliminary Plat prepared in accordance with this UDO.

B.

Erosion, Sedimentation and Pollution Control Plan prepared in accordance with the requirements of this UDO.

C.

Grading Plan prepared in accordance with the requirements of this UDO if grading is proposed beyond the street right-of-way.

D.

Stormwater drainage construction data prepared in accordance with the requirements of this UDO and the Gwinnett County Stormwater Management Manual, including but not limited to:

1.

Location and size of all proposed drainage structures, including stormwater management facilities, catch basins, grates, headwalls, pipes, and any extensions thereof, energy dissipators, improved channels, and all proposed drainage easements to be located outside street right-of-way lines.

2.

Profiles of all storm drainage pipes and slope of receiving channels. Hydraulic grade line is to be shown on all pipes (except roof drains) for the required design flow. On storm drainage profiles a pipe chart will be shown which will include pipe numbers, pipe size, pipe material, pipe slope, pipe length, contributing drainage area, design flow, design storm frequency, runoff coefficient and velocity. On all pipes, the hydraulic grade line shall be shown.

3.

Profiles of all open channels and ditches including the design flow, normal depth, and velocity. On storm drainage profiles an open channel chart will be shown which will include: open channel numbers, conveyance size, lining material, length, channel slope, contributing drainage area, design flow, design storm frequency, runoff coefficient and velocity for the required design flow.

4.

Hydrological study used in determining size of structures, including map of all contributing drainage basins and acreage.

E.

Sewage disposal plans prepared in accordance with the requirements of the current Water Main and Sanitary Sewer Design and Construction Standards and Specifications, including but not limited to:

1.

Sanitary Sewer Plans, including the profiles and other information as may be required by the Department of Water Resources.

2.

For projects proposed to be served by on-site sewage disposal systems, location, and extent of septic tank, drain field and attendant structures, and other information required by the Environmental Health Section.

F.

Construction data for new streets and street widenings, including:

1.

Centerline profiles and typical roadway sections of all proposed streets, as well as plans and profiles for all proposed major thoroughfares. Typical roadway sections shall be provided for street widenings.

2.

Profiles covering roadways that are extensions of existing roadways shall include elevations at 50-foot intervals for such distance as may be adequate to provide continuity consistent with the standards required by Chapter 900 for street improvements, but no less than 200 feet.

3.

All elevations shall be coordinated and tied into U.S. Coast and Geodetic Survey or Department of Transportation benchmarks where feasible, or into reference monuments established by the Federal Emergency Management Agency.

4.

Stub streets shall be profiled at least 200 feet onto adjoining property (no tree cutting).

G.

Utility Plans

H.

Specimen Tree Survey.

I.

Specimen Tree Concept Plan, if applicable.

J.

Tree Preservation and/or Replacement Plan prepared in accordance with this UDO.

K.

Buffer and Landscape Plan. If any such areas exist within the subdivision, the plan shall be prepared in accordance with the specifications under this Chapter, and the requirements.

L.

Floodplain Management Plans. If any floodplain areas are located on the property, such data as is required by this UDO shall be submitted.

M.

Water System Plans prepared in accordance with the requirements of the Water Main and Sanitary Sewer Design and Construction Standards and Specifications, including but not limited to:

1.

Water Main Extension plans, if any, are to be designed in accordance with the current Water Main Specifications.

2.

Private Water System Plans, if any, indicating proposed devices, water main size and location, with fire hydrants, on the site. The distance and direction to all other fire hydrants within 500 feet of the site or buildings along existing streets or other access drives shall also be indicated.

N.

Street striping plan, showing striping in accordance with the Manual on Uniform Traffic Control Devices, for any street newly constructed to four or more lanes, and all newly constructed or widened major thoroughfares.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

330-50.1

A.

Plat Specifications Size. The Preliminary Plat for a subdivision development shall be clearly and legibly drawn at a scale of not less than 100 feet to 1 inch. Sheet size shall not exceed 48 inches by 36 inches, provided, however, a scale of 200 feet to 1 inch may be used to avoid sheets in excess of 48 inches by 36 inches. The Director may approve other scales and sheet sizes as deemed appropriate.

B.

List of what is required to be shown. The Preliminary Plat shall contain the following:

1.

Total acreage.

2.

Proposed total number of lots and minimum lot size.

3.

Size and location of adjoining existing streets or access drives and proposed rights-of-way, roadways, access drives, and adjoining sidewalks.

4.

Topography with contour intervals no greater than 10 feet.

5.

Proposed method of sewage disposal (expressed as a note).

6.

Boundary lines of the overall property showing bearings and distances along all lines and the bearings and distance to an existing street intersection or other recognized permanent landmark. The source of said boundary information shall be indicated.

7.

All contiguous property under the ownership or control of the developer, except those lands of a dissimilar zoning category specifically approved to be excluded by the Department. Areas not planned at the time of the submittal shall be shown as "Future Development".

8.

Authorization statement on the Preliminary Plat to read as follows:

I hereby submit this Preliminary Plat as authorized agent/owner of all property shown thereon and certify that all contiguous property under my ownership or control is included within the boundaries of this Preliminary Plat, as required by the Unified Development Ordinance.

9.

Location sketch (vicinity map).

10.

Location and size (in acres) of lakes, ponds, wetlands and floodplains and the source of the information.

11.

Required recreation areas and other public areas to be dedicated to the public or held in common ownership by a homeowner association or other similar entity.

12.

Existing zoning of the property and adjoining properties.

13.

Land lot and district.

14.

Subdivider's name, local and permanent (if different) address, email address, and phone number.

15.

Name, address, email address, and phone number of company or person who prepared plan.

16.

Boundaries of the Chattahoochee River Corridor and Chattahoochee River Tributary Protection Areas, if applicable to the property.

17.

General development data, such as minimum lot size, floor area, and all relevant conditions of zoning.

18.

Location of public utilities.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

330-60.1 Plan Requirements

A.

Plans shall meet minimum requirements. Plans shall be prepared to meet the minimum requirements as contained in Section 400-30.2 and Section 400-30.3 of this UDO or through the use of more stringent, alternative design criteria which conform to sound conservation and engineering practices. In addition, plans shall also comply with the data requirements of Chapter 320 of this UDO. Conformance with the minimum requirements may be attained through the use of design criteria in the current issue of the "Manual for Erosion and Sediment Control in Georgia", published by the Georgia Soil and Water Conservation Commission as a guide; or through the use of alternate design criteria which conform to sound conservation and engineering practices. The "Manual for Erosion and Sediment Control in Georgia" is hereby incorporated by reference into this UDO. The plan for the land-disturbing activity shall consider the interrelationship of the soil types, geological and hydrological characteristics, topography, watershed, vegetation, proposed permanent structures including roadways, constructed waterways, sediment control and stormwater management facilities, local ordinances or regulations and state laws.

B.

Data required for plan. Data shall include all information required from the appropriate Erosion, Sedimentation, and Pollution Control Plan review checklist established by the Georgia Soil and Water Conservation Commission as of January 1 of the year in which the land-disturbing activity was permitted. The following data shall be required to be provided on all plans:

1.

Narrative or notes required by this Chapter shall be located on the plan in general notes or in erosion and sediment control notes.

2.

Description of existing land use at the project site and description of the proposed project.

3.

Name, address, email address, and phone number of the property owner.

4.

Name and phone number of the 24-hour local contact person who is responsible for erosion and sedimentation controls.

5.

Size of the project, or the phase under construction, in acres.

6.

Activity schedule, including initial installation and final removal of all best management practices, shall indicate the anticipated start and completion dates for the project.

7.

The following statement in bold letters shall be printed on the plan: "The Installation of Erosion and Sedimentation Control Measures And Practices Shall Occur Prior To Or Concurrent With Land-Disturbing Activities ONLY AFTER THE REQUIRED PRE-CONSTRUCTION SITE MEETING WITH DEVELOPMENT INSPECTORS."

8.

Stormwater and sedimentation management systems, storage capacity, hydrologic study, and calculations, including off-site drainage areas. Vegetative plan for all temporary and permanent vegetative practices, including species, planting dates, and seeding, fertilizer, lime, and mulching rates. The vegetation plan shall show options for year-round seeding.

9.

Detail drawings for all structural practices. Specifications shall follow the guidelines set forth in the Manual for Erosion and Sediment Control in Georgia.

10.

Maintenance statement shall be printed on the plan as follows: "Erosion and sedimentation control measures shall be maintained at all times. If full implementation of the approved plan does not provide for effective erosion and sediment control, additional erosion and sediment control measures shall be implemented to control or treat the sediment source."

C.

Additional plan preparation and data requirements. Maps, drawings, and supportive computations shall bear the signature and seal of the certified design professional. Persons involved in land development design, review, permitting, construction, monitoring, or inspections or any land-disturbing activity shall meet the education and training certification requirements, dependent on his or her level of involvement with the process, as developed by the Georgia Soil and Water Conservation Commission and in consultation with the Environmental Protection Division (EPD) of the Department of Natural Resources and the stakeholder advisory board created pursuant to O.C.G.A. § 12-7-20. The certified plans shall contain the following:

1.

Graphic scale and north point or arrow indicating magnetic north.

2.

Vicinity map indicating the location of the project and existing streets.

3.

Boundary line survey information.

4.

Delineation of disturbed areas within the project boundary.

5.

Existing and planned contours, with contour lines drawn with an interval in accordance with the following table:

6.

Adjacent areas and features such as streams, lakes, residential areas, etc., which might be affected shall be indicated on the plan.

7.

Proposed structures or additions to existing structures and paved areas.

8.

Delineate the 25-foot horizontal buffer adjacent to state waters and the specified width of buffers in areas required by the Metropolitan River Protection Act.

9.

Delineate the specified horizontal buffer along designated trout streams, where applicable.

10.

Location of the erosion and sedimentation control measures and practices, using the uniform coding symbols from the "Manual for Erosion and Sediment Control in Georgia," Chapter 6.

D.

Property owner responsibility for maintenance. Maintenance of all soil erosion and sedimentation control measures and practices, whether temporary or permanent, shall be at all times the responsibility of the property owner. Section 330-70. Grading Plan.

330-70.1Compliance with contour line and grade required. Grading shall be done in accordance with the contour lines and grades shown on the approved Grading Plan.

330-70.2Contour interval of 2 feet required. Grading plans shall show existing and proposed contour lines at an interval of no more than 2 feet. Grading plans shall outline the areas that are required to remain undisturbed (i.e., Tree Protection Areas, buffer, etc.) and shall indicate protective fencing or staking to be placed surrounding such areas.

330-70.3Consistent with Metropolitan River Protection Act. If the property is within the jurisdiction of the Metropolitan River Protection Act, the grading shall be consistent with the Chattahoochee River Corridor Certificate approved for the project.

330-70.4 Embankment layering shall be consistent with the Gwinnett Stormwater Management Manual.

330-70.5Maximum Slopes.

A.

The maximum slopes for cut or fill shall be 2:1 (two feet of horizontal run for each foot of rise or fall), except for the following:

1)

For earthen dam embankments

2)

For rock cuts

3)

Where certified by a professional engineer

4)

As discussed below.

B.

Earthen embankments shall be 3:1 maximum unless a modification application is approved. The intent of the earthen dam embankment slope regulation is to provide for public safety, soil stability, and dam maintenance considerations. The depth of cut referred to herein shall be the maximum cut or fill that shall be allowed to occur in any one section of cut or fill. The slope of cut or fill shall be uniform throughout for each section of cut or fill unless benching is approved by the County.

C.

Maximum slopes shall otherwise be consistent with the Gwinnett County Stormwater Management Manual.

330-70.6 Special conditions for soil with low shearing resistance and cohesion shall be required as specified in the Gwinnett County Stormwater Management Manual.

330-70.7 Grading plan for building pad locations for residential subdivisions.

A.

A grading plan showing building pad locations shall be submitted for residential subdivisions zoned for a lot size of less than 12,000 square feet or a density of 4 units per acre or more unless a modification application is approved.

B.

Lot must be graded to ensure adequate lot-to-lot drainage. Granting a modification will not nullify the intent of this UDO when the layout has a minimum lot area of 14,520 square feet and a minimum lot width of 90 feet. The grading plan may be used as a construction document prior to approval of the Final Plat or as a guidance document for individual lot grading after approval of the Final Plat.

C.

The grading plan must include the minimum floor elevations, drainage flow arrows and a designation of slab, basement, or slab/basement for each lot.

330-70.8 Grading for roads and improved ditches shall be shown.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

All utility construction plans within County right-of-way shall be reviewed and approved by the Department before construction begins. Street cuts shall not be allowed unless deemed absolutely necessary due to the presence of rock, the need to tap into an existing line beneath the road surface, or other circumstances which makes boring impossible or infeasible.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

330-90.1Specimen Tree Survey. The specimen tree survey shall be to scale and prepared, certified, or sealed by a certified arborist, registered forester, or authorized registered professional.

A.

The Specimen Tree Survey P shall be prepared on a closed boundary survey of the property and at minimum the following items shall be shown:

1.

Parcel identification number(s).

2.

Project name.

3.

Property owner's name and contact information.

4.

Developer's name, company name, address, phone, and email address.

5.

Designer's name, company name, address, phone, and email address.

6.

Specimen trees located and labeled with tree identification number, diameter, genus and/or common name.

7.

Specimen tree stands located and labeled with their tree identification number, diameter, genus and/or common name.

8.

Existing structures and their location.

9.

Abandoned and existing wells and their location.

10.

Any notes required by this UDO.

B.

In chart format, provide specimen tree identification number, genus or common name, size (dbh); and condition description. as listed in Section 630-70.3.A.2).

330-90.2Specimen Tree Concept Plan. If specimen trees are identified, a Specimen Tree Concept Plan shall be prepared by a qualified professional and submitted with development plans.

A.

The Specimen Tree Concept Plan shall be prepared on a closed boundary survey of the property. In addition to items listed in Section 330-20.1., the following shall be shown:

1.

Dripline or critical root zone of each specimen tree (whichever is greater) and tree save areas.

2.

Building footprint.

3.

Driveways.

4.

Parking Lot(s).

5.

Utility lines and easements (both existing and proposed).

6.

Limits of disturbance.

7.

Proposed stormwater management areas.

8.

Existing and proposed topography.

B.

Provide the percentage of disturbance for each specimen tree when critical root zone is partially disturbed.

C.

In chart format, provide information that states if a tree is to be removed or preserved/protected; state the tree density unit credit for each specimen tree; and provide a column for assigned recompense in the event the tree is removed or the critical root zone disturbance is greater than 30 percent.

D.

Trails and Greenways. In the case of trails and greenways that are not located on public access easements or public or private utility easements show the proposed trail or greenway, show the trail or greenway limits of clearing and a 25-foot corridor on either side of the trail or greenway limits of clearing with any specimen tree identified within that trail or greenway corridor.

E.

For Limited Land Disturbance Permits, a tree survey is required for the area within the land disturbance and 50 feet beyond the limits of the disturbance line.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

330-100.1 List of plan requirements for Limited Land Disturbance:

A.

Tree Thinning, Timber Harvesting, or Removal of Trees for Disease or Insect Infestation shall meet plan requirements as described in this UDO and shall contain the following information:

1.

Owners name, address, email address, and telephone number;

2.

Consultant's name, address, email address and telephone number;

3.

Contractor's name, address, email address, and telephone number;

4.

Twenty-Four (24) Hour Emergency Contact;

5.

Location/Vicinity Map;

6.

District, Land Lot(s), Parcel number(s);

7.

Scale;

8.

North Arrow;

9.

Closed property boundary showing bearings and distances of all property lines;

10.

Zoning;

11.

Zoning case numbers, approval date, and all conditions;

12.

Zoning of adjacent parcels;

13.

Total acreage of property;

14.

Total acreage of disturbed area;

15.

Tree protection areas;

16.

Tree protection fence;

17.

Silt fence;

18.

Street Name(s);

19.

Location of:

a.

Streams;

b.

Stream Buffers (State Waters)(Gwinnett County);

c.

Impervious Surface Setback;

d.

Topography;

e.

100-year floodplain;

f.

Wetlands.

20.

Limits of land disturbance, and;

21.

Approximate locations of:

a.

Logging decks;

b.

Haul roads;

c.

Stream crossings;

d.

Historical features such as cemeteries.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

330-110.1 Tree Preservation and/or Replacement Plans shall be prepared and certified by an authorized registered professional, registered forester, or certified arborist in accordance with the specifications for such plans contained in this UDO.

330-110.2 The Tree Preservation and/or Replacement Plan shall be shown on a site plan and included with the permit application for a Development Permit and shall be, drawn to the same scale as the other development plans in the set. Specific sections of the Tree Preservation and/or Replacement Plan may be shown at a larger scale for detail purposes provided the overall plan is at the same scale as the other development plans in the set. The Tree Preservation and/or Replacement Plan may be combined with the Buffer and Landscape Plan for the project provided it remains legible.

330-110.3 The Tree Preservation and/or Replacement Plan shall provide sufficient information and detail to clearly demonstrate that all applicable requirements and standards of this UDO will be fully satisfied.

330-110.4The Tree Preservation and/or Replacement Plan shall, at a minimum, contain the following:

A.

Project name, land district, land lot, parcel, north arrow, and scale.

B.

Developer's name, address, email address, and telephone number.

C.

The name, address, email address, and telephone number of the authorized registered professional, registered forester, or certified arborist.

D.

Delineation of overhead power lines and transmission lines.

E.

Delineation of all minimum yard areas, buffers, and landscape areas as required by this UDO or conditions of zoning, special use or variance approval.

F.

Total acreage of the site and total acreage exclusive of all zoning buffer areas.

G.

Delineation of all areas located within a 100-year flood plain.

H.

Existing trees to be retained in Tree Protection Areas:

1.

Trunk location and size (to the nearest inch in diameter at 4.5 feet above the ground), of individual trees proposed to remain for credit toward meeting the minimum Tree Density Standard on the property.

2.

Groups of three or more trees whose driplines combine into a single Tree Protection Area may be outlined as a group and their number, by diameter, shown in the Summary Table.

3.

If the number and size of all existing trees to remain on the site exceeds the required tree density standard for the entire site, only those trees required to meet the minimum Tree Density Standard must be shown.

4.

All Tree Protection Areas are to be outlined and labeled.

I.

Tree Protection Measures:

1.

A detail or description of the protective tree fencing to be installed, and the location of such measures, which at a minimum shall follow the dripline of all trees to be retained along adjoining areas of clearing, grading, or other construction activity.

2.

Measures to be taken to avoid soil sedimentation intrusion into Tree Protection Areas, and the location of such devices.

3.

Proposed location of temporary construction activities such as equipment or worker parking, materials storage, burn holes, equipment washdown areas, and entrance pads.

4.

Proposed type and location of any tree save area signs or other pertinent signage.

J.

If replacement trees are proposed to be planted in order for the property to achieve the required Tree Density Standard, the replacement trees shall be shown and their spacing and caliper identified, to the extent needed to achieve the minimum requirements. Trees grouped together in tree planting areas may be listed on the Summary Table by total number in the grouping, by size.

K.

A Summary Table of the number of existing trees to remain by diameter to the nearest inch at 4.5 feet above the ground for preserved trees and for new trees to be planted by caliper at 6 inches above the ground for replaced trees, shall be shown along with calculations showing the tree density achieved for the site. Additional credits shall be noted where applicable.

L.

Tree Canopy Calculations. (See Chapter 630)

M.

The plan sheet which shows the grading plan, including existing and proposed contour lines, shall indicate the dripline location of all Tree Protection Areas through the use of shading on the plans. The exact location of each tree is not desired to be shown, only the limits of the Tree Protection Area and any other areas which are not to be disturbed.

N.

The location of all easements.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

330-120.1 A Buffer and Landscape Plan shall be prepared for any project wherein buffer areas or other landscaping areas, or treatment are required and when conditions of zoning, special use or variance approval, or other regulations of Gwinnett County require them, and shall be approved prior to issuance of a development permit. While the plan shall cover, at a minimum, the required buffer and landscape areas, it may be combined with the Tree Preservation and/or Replacement Plan into a general landscaping plan for the entire project at the developer's option provided it remains legible.

330-120.2 The Buffer and Landscape Plan shall be shown on a site plan or boundary survey and included in the Development Plans and drawn to the same scale as the other development plans in the set or at a larger scale for detail purposes.

330-120.3The Buffer and Landscape Plan shall, at a minimum, contain the following:

A.

Project name and land district, land lot, parcel acreage, north arrow, and scale.

B.

Developer's name, address, email address, and telephone number.

C.

The name, address, email address and telephone number of the authorized registered professional, registered forester, or certified arborist responsible for preparation of the plan.

D.

Boundary lines of each buffer or other landscape area, appropriately labeled.

E.

Delineation of undisturbed buffer areas along the dripline of the trees or groups of trees contained therein, and any other areas wherein trees are proposed to be retained to meet County requirements. These areas shall be treated in accordance with Tree Protection Area requirements contained in this UDO and labeled as such.

F.

Protective barriers and signage as required by this UDO shall be shown as to location and detailed.

G.

Delineation of overhead power lines and overhead transmission lines.

H.

General location of all proposed trees, shrubs, vines, groundcovers, mulching, and other features proposed within the buffer/landscape area. The layout of the vegetation and landscaping required for the proposed stormwater management facilities as well as the plant names are to be shown.

I.

Within areas involving or adjacent to landform changes, existing and finish grade topographic lines at an interval of no more than 2 feet may be required.

J.

For new plant materials to be installed, a plant material list including but not limited to:

1.

Common and botanical names of all proposed plants.

2.

Plant quantities.

3.

Size and condition of plants. (Example: 2-inch caliper, 6 feet height, balled and burlapped).

4.

Spacing.

5.

Remarks as necessary to ensure proper plant selection upon installation. (Example: specimen, multi-trunked).

K.

The location of easements.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

330-130.1 An application for a development project with any Area of Special Flood Hazard or Area of Future-conditions Flood Hazard located on site shall include a floodplain management/flood damage plan. This plan shall include the following items:

A.

Site plan drawn to scale, which includes but is not limited to:

1.

Existing and proposed elevations of the area in question and the nature, location, and dimension of existing and/or proposed structures, earthen fill placement, amount and location of excavation material, and storage of materials or equipment;

2.

For all proposed structures, spot ground elevations at the building corners and 20-foot or smaller intervals along the foundation footprint, or one foot contour elevations throughout the building site;

3.

Proposed locations of water supply, sanitary sewer, and utilities;

4.

Proposed locations of drainage and stormwater management facilities;

5.

Proposed grading plan;

6.

Base flood elevations and future-conditions flood elevations;

7.

Boundaries of the base flood floodplain and future-conditions floodplain;

8.

Location of the floodway, if applicable; and

9.

Certification of the above by a licensed professional engineer or surveyor.

B.

Building and foundation design detail, including but not limited to:

1.

Design plans certified by a licensed professional engineer or architect for all proposed structure(s).

2.

Elevation in relation to mean sea level (or highest adjacent grade) of the lowest floor, including basement, of all proposed structures;

3.

Certification that any proposed non-residential floodproofed structure meets the criteria in Chapter 700.

4.

For enclosures below the base flood elevation, location and total net area of flood openings as required in Chapter 700.

C.

Hard copies and digital files of computer models, copy of work maps, comparison of pre- and post-development conditions base flood elevations, future-conditions flood elevations, flood protection elevations, Special Flood Hazard Areas and regulatory floodways, flood profiles and all other computations and other information similar to that presented in the FIS;

D.

The approved floodplain management/flood damage prevention plan shall contain certification by the applicant that all development activities will be done according to the plan or previously approved revisions. Any and all development permits and/or use and occupancy certificates or permits may be revoked at any time if the construction and development activities are not in accordance with approved plans.

E.

All residential lots in a proposed subdivision shall have sufficient buildable area outside of the future conditions floodplain such that encroachments into the future-conditions floodplain for residential structures will not be required.

F.

All preliminary plats and site development plans will provide the elevations of proposed structures in accordance with this Chapter.

G.

All preliminary plats and site development plans shall be consistent with the need to minimize flood damage.

H.

All construction plans for land development shall show public utilities and facilities such as water, sanitary sewer, gas, and electrical systems located and constructed to minimize or eliminate infiltration of flood waters, and discharges from the systems into flood waters.

I.

All construction plans for land development include adequate drainage and stormwater management facilities per the requirements of Chapter 800 to reduce potential exposure to flood hazards.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)

330-140.1House Location Plan.

A.

Size and description. House Location Plans shall be drawn to scale and may be shown on a certified boundary survey of the lot or any other drawing showing the information required below. The Department may accept a House Location Plan drawn to the same scale as shown on the Final Plat where sufficient detail can be shown to support an adequate review and approval. The House Location Plan may be combined with a Residential Drainage Plan (RDP) if a RDP is required for the lot.

B.

May be drawn by an individual. It is not the intent of the Department that the House Location Plan be prepared by an authorized registered professional but may be done by the individual proposing the improvements on the lot. It is the intent, however, to receive a drawing with sufficient readability and accuracy to ensure that the proposed improvements will be constructed on the lot in conformance with the requirements of this UDO, or other regulations as applicable.

C.

List of what is to be shown. House Location Plans shall show the following, as applicable:

1.

Boundary lines of the lot, giving distances to the nearest one-tenth of a foot and bearing to the nearest minute.

2.

Location and names of all abutting streets or other rights-of-way.

3.

Minimum required front, side and rear building setback lines with dimensions, and notation of the existing zoning on the property.

4.

All easements, public water, sewer, or storm drainage facilities traversing or located on the property, septic tank, and septic tank drain field.

5.

Subdivision name, lot designation, land lot, district, and parcel number.

6.

North arrow and scale.

7.

Limit of the 100-year floodplain and any applicable buffers or special building setback lines.

8.

If the lot is located within the Chattahoochee River Corridor, the location of each area by vulnerability category and calculations of impervious surface and clearance by category, or other such data in accordance with the Certificate for the subdivision approved under the Metropolitan River Protection Act. Show also any buffer or setback required by the Metropolitan River Protection Act.

9.

All other applicable requirements of this UDO and conditions of zoning approval.

10.

Name, address, email address, and telephone number of the owner and the person who prepared the HLP.

D.

Certificate of Occupancy. If a lot is located in the Chattahoochee River Corridor, a Certificate of Occupancy shall not be issued for the structure or other improvements until conformance to the provisions or other requirements of the House Location Plan have been field verified by a survey prepared by a registered land surveyor and submitted to the Department.

330-140.2Residential Drainage Plan (RDP).

A.

Certified boundary survey required. Prior to issuance of a Building Permit, Residential Drainage Plans shall be drawn to scale on a certified boundary survey of the lot and prepared by an authorized registered professional and be approved by the Department of Planning and Development. The Residential Drainage Plan may be combined with a House Location Plan (HLP) if an HLP is required for the lot. The requirements contained herein shall also apply to lots which formerly required SPED (Site Plan - Engineering Division) approval.

B.

A list of what is required to be shown. Residential Drainage Plans shall show the following, as applicable:

1.

Boundary lines of the lot, giving distances to the nearest one-tenth of a foot and bearings to the nearest minute.

2.

Location and names of all abutting streets or other rights-of-way.

3.

The outline of all buildings, driveways, parking areas, swimming pools, recreational courts, patios, accessory structures, and other improvements existing or proposed on the property, and dimensions of buildings and distances between all structures and the nearest property lines as required to locate the major improvements on the lot.

4.

All easements, public water or sewer facilities traversing or located on the property, and septic tank drain field.

5.

Subdivision name, lot designation, land lot, and district.

6.

North arrow and scale.

7.

Contour lines based on sea level datum. These shall be drawn at intervals of not more than two feet and shall be based on a field survey. Proposed grading of the lot shall be shown along with the finished floor elevation of the lowest habitable floor of the house.

8.

Stormwater features, including swales, pipes, stormwater management facilities and other structures, all drainage easements (DE), and directions of flow.

9.

Floodplain features, including the limits of the flood hazard area, 100-year flood high water elevation, origin of the floodplain data, and any proposed modifications to the floodplain limits.

10.

Sedimentation and erosion control measures to be taken or placed on the lot during construction.

11.

Names, address, email address, and telephone number of the owner and person who prepared the RDP.

12.

Seal, registration number, and date of expiration of the authorized registered professional who prepared the drainage improvements or modifications shown on the RDP.

330-140.3Residential Drainage Study (RDS).

A.

A Residential Drainage Study (RDS) shall be conducted by the developer's or builder's authorized registered professional prior to issuance of a Certificate of Occupancy on those lots so noted on the Final Plat. The requirements for a RDS contained herein shall also apply to lots that formerly required SSED (Site Study - Engineering Division) approval. The grading and construction of the lot shall be field verified by the developer's or builder's authorized registered professional as being in conformance with grading plans and stormwater management studies approved for the subdivision. A Certificate of Occupancy shall not be issued for the structure until a written certification has been received from the developer's or the builder's authorized registered professional stating that the provisions or improvements required by the Residential Drainage Plan or as a result of the Residential Drainage Study have been field verified.

330-140.4Certificate - Department approval. If an RDP or RDS is required because a stream or floodplain is on or adjacent to the lot, the notation on the development plans and plat shall be "RDP" or "RDS" as appropriate.

330-140.5Swimming Pool Location Plan.

A.

A Swimming Pool Location Plan is required for residential lots in order to obtain a building permit for a swimming pool. Its purpose is to ensure that the rear yard location and accessory structure setback requirements are met and that easements are kept free of encroachments.

B.

Size and description. Swimming Pool Location Plans shall be drawn to scale and may be shown on a certified boundary survey of the lot or any other drawing showing the information required below. The Department may accept a Swimming Pool Location Plan drawn to the same scale as shown on the Final Plat where sufficient detail can be shown to support an adequate review and approval.

C.

May be drawn by an individual. It is not the intent of the Department that the Swimming Pool Location Plan be prepared by an authorized registered professional but may be done by the individual proposing the pool on the lot. It is the intent, however, to receive a drawing with sufficient readability and accuracy to ensure that the proposed improvements will be constructed on the lot in conformance with the requirements of this UDO, or other regulations as applicable.

D.

List of what is required to be shown:

1.

Boundary lines of the lot with distances.

2.

Location and names of all abutting streets or other street rights-of-way.

3.

Minimum required front building setback lines with dimensions.

4.

Minimum required 5-foot accessory structure setback from side and rear property lines.

5.

Self-closing and self-latching gate equipped with a locking device.

6.

Pump, equipment structures and decking.

7.

Septic tank and drain field (if applicable).

8.

Height, type, and location of required pool fencing.

9.

The approximate outline of all buildings, driveways, swimming pools, recreational courts, patios, accessory structures, and other improvements, existing or proposed, on the property, and dimensions of buildings and distances between all structures and the nearest property lines.

10.

Location and dimensions of any water, sewer, drainage or other easements, stormwater management facilities, septic tank, and septic tank drain field located on the lot.

11.

Subdivision name, lot, and block designation.

12.

North arrow and scale.

13.

The 100-year floodplain limits, any applicable stream buffers, or other special building setback lines.

14.

Names, address, email address, and telephone number of the owner and person who prepared the plan.

15.

Any other applicable requirements of this UDO or conditions of zoning approval.

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 33), 9-26-2023)