Technical Standards & Details

Jurisdiction

On and after September 11, 1979, the standards and details contained herein shall be applicable to all new improvements and alterations in existing improvements lying within the regulatory jurisdiction of the City of Wilmington.

The City of Wilmington maintains a set of standards and details to be used in the construction of infrastructure improvements. The materials, design and construction standards contained in the following web pages are established as the minimum standards for the City of Wilmington.

Variance or Modification

These standards and details have been compiled by the various technical agencies of the City of Wilmington and New Hanover County upon sufficient studies of the existing problems, improvement standards within other areas of the State, and applicable enabling legislation of the State, and have been determined to be reasonable improvement specifications and standards applicable to the City of Wilmington. All construction methods and material not specified within these pages shall conform with the current "North Carolina Department of Transportation Standard Specifications for Roads and Structures".

Minor deviations from the standards in the City's Technical Standards and Specifications Manual can be considered for approval through the Administrative Adjustment process. The process and review standards are specified in Section 18-604 of City Code.

Download the Application for Administrative Adjustment(PDF, 86KB).

Major deviations from the City's Technical Standards and Specifications Manual require approval. Information on the Design Adjustment Committee can be found in Section 18-603 of City Code and on the Design Adjustment Committee web page.

If you have any problems downloading or viewing the files, please contact Jonathan Rhyne.

Special Maps

Standards Manuals

Standard Details

Std. Detail # Detail Description Revision Date PDF
1-04 Typical Road Rebuild 5/10/13 1-04(PDF, 67KB)
1-05 Pavement Repairs 5/09/13 1-05(PDF, 108KB)
1-07 Pipe Trench 5/03/13 1-07(PDF, 70KB)
1-14 Private Access Easement - Sheet 1 07/19/22 1-14.1(PDF, 88KB)
1-14 Private Access Easement - Sheet 2 05/06/22 1-14.2(PDF, 61KB)
1-17 Flared End Sxn and Dimension Table-Sheet 1 10/04/12 1-17.1(PDF, 41KB)
1-17 Flared End Sxn and Dimension Table-Sheet 2 1-17.2(PDF, 51KB)
1-18 Brick Sidewalk 9/17/12 1-18(PDF, 72KB)
2-01 Catch Basin 8/08/11 2-01(PDF, 78KB)
2-02 Drop Inlet 2-02(PDF, 188KB)
2-04 Subdrain 2-04(PDF, 46KB)
2-05 Storm Drain Interference Manhole 2-05(PDF, 55KB)
2-06 Trough Type Drop Inlet 2-06(PDF, 45KB)
2-10 Modified Catch Basin Pipes Over 24" 2-10(PDF, 43KB)
2-11 Slab Top for Modified Catch Basin 2-11(PDF, 68KB)
2-12 Modified Catch Basin Sidewalk & Curbing 2-12(PDF, 66KB)
2-13 Requirements for Corrugated Steel Pipe 2-13(PDF, 82KB)
2-15 Pipe Outlet Protection 2-15(PDF, 73KB)
2-16 Catch Basin Castings 2-16(PDF, 57KB)
2-17 Guidelines for Pipe Bedding-Storm Sewer 2-17(PDF, 57KB)
2-18 Pipe Connection-Metal to Concrete 2-18(PDF, 53KB)
2-19 Catch Basin Casting for 30" Hood & Grate 2-19(PDF, 68KB)
2-20 Catch Basin Grate for 30" Hood & Grate 2-20(PDF, 62KB)
2-21 Catch Basin Casting for 24" Hood & Grate 2-21(PDF, 59KB)
2-23 Precast Waffle Box 2-23(PDF, 77KB)
2-23a Precast Waffle Box-General Notes 08/11/20 2-23a(PDF, 68KB)
2-24 Precast Drainage Box-Solid 2-24(PDF, 88KB)
2-24a Precast Drainage Box-Solid-General Notes 08/11/20 2-24a(PDF, 63KB)
2-100 Concrete Pipe Collar 2-100(PDF, 52KB)
3-01.1 Non-Residential Collector Street (Section and Crown) 5/06/15 3-01.1(PDF, 66KB)
3-01.2 Residential Collector Street (Section and Crown) 5/06/15 3-01.2(PDF, 87KB)
3-01.3 Local Street with Vertical Curb (Section and Crown) 5/06/15 3-01.3(PDF, 74KB)
3-01.4 Local Street with Slope Curb (Section and Crown) 5/06/15 3-01.4(PDF, 75KB)
3-01.5 Local Street with Valley Curb (Section and Crown) 5/06/15 3-01.5(PDF, 73KB)
3-01.6 Minor Street with Vertical Curb (Section and Crown) 5/13/15 3-01.6(PDF, 71KB)
3-01.7 Minor Street with Slope Curb (Section and Crown) 5/13/15 3-01.7(PDF, 70KB)
3-01.8 Minor Street with Valley Curb (Section and Crown) 5/13/15 3-01.8(PDF, 69KB)
3-01.9 Alley with Header Curb (Section and Crown) 5/13/15 3-01.9(PDF, 63KB)
3-03.1 & 3-03.2 Residential Driveway Plan (Vertical Curb) 2/23/17 3-03.1-2(PDF, 161KB)
3-03.3 & 3-03.4 Commercial Driveway Plan (Vertical Curb) 2/23/17 3-03.3-4(PDF, 157KB)
3-04 Cul-De-Sac 11/15/21 3-04(PDF, 67KB)
3-05 Turnarounds 11/15/21 3-05(PDF, 63KB)
3-07 Curb Ramps-Flare 3-07(PDF, 69KB)
3-08 Curb Ramps-Adjacent to Plaza 3-08(PDF, 85KB)
3-09 Intersection Layout 3-09(PDF, 106KB)
3-10 Sidewalk 3/01/24 3-10(PDF, 166KB)
3-11 Curbing 3-11(PDF, 213KB)
3-12 Pavement Widening 6/11/19 3-12(PDF, 300KB)
3-13 Multi-Use Path 7/25/23 3-13(PDF, 106KB)
3-100 Reinforced Sidewalk 3-100(PDF, 64KB)
3-102 Brick Crosswalk 3-102(PDF, 83KB)
3-103 Brick Street-Typical Section 3-103(PDF, 114KB)
3-105 Typical Retaining Wall 3-105(PDF, 63KB)
8-02 Right Turn Bay 8-02(PDF, 43KB)
8-18 Driveway Right Turn Lane-With Curb 5/29/15 8-18(PDF, 42KB)
8-19 Driveway Right Turn Lane-No Curb 5/29/15 8-19(PDF, 48KB)
8-20 Left Turn Lane Widening 8-20(PDF, 48KB)
8-21 One-Way Driveways 8-21(PDF, 76KB)
8-22 Left Turn Lanes 8-22(PDF, 44KB)
9-04 Typical Street Lamp 03/16/20 9-04(PDF, 260KB)
9-05 Typical Street Lamp Base & Electrical Detail 08/09/21 9-05(PDF, 174KB)
11-01 Pavement Markings-Line Types 11-01(PDF, 64KB)
11-02 Pavement Markings-Offsets 11-02(PDF, 51KB)
11-03 Guidelines for Pavement Markings and Symbols 11-03(PDF, 55KB)
11-04 Pavement Markings-Non Signal Intersections-Sheet 1 2/05/15 11-04.1(PDF, 56KB)
11-04 Pavement Markings-Non Signal Intersections-Sheet 2 1/08/15 11-04.2(PDF, 54KB)
11-06 Pavement Markings-Signalized Intersections 11-06(PDF, 81KB)
11-07 Pavement Markings-Thru-Lane Drop at Intersection 11-07(PDF, 65KB)
11-08 Pavement Markings-Turn Lanes 11-08(PDF, 50KB)
11-09 Pavement Markings-Turn Lanes 11-09(PDF, 64KB)
11-10 Pavement Markings-Raised Pavement Markers 11-10(PDF, 74KB)
11-11 Pavement Markings-Crosswalks 11-11(PDF, 129KB)
11-12 Thermo Markings-50' Driveway-No Left Turn 11-12(PDF, 45KB)
11-13 Thermo Markings-50' Driveways-Sheet 1 11-13.1(PDF, 51KB)
11-13 Thermo Markings-50' Driveways-Sheet 2 11-13.2(PDF, 52KB)
11-14 Markings-Roundabout 11-14(PDF, 120KB)
14-02 Standard Manhole Ring and Cover 14-02(PDF, 51KB)
14-03 Standard Manhole Vented Section 14-03(PDF, 53KB)
14-04 Drop Inlet Castings 14-04(PDF, 66KB)
14-05 Monument Detail 14-05(PDF, 63KB)
14-10 Slip Resistant Manhole Step Detail 14-10(PDF, 39KB)
14-11 Precast Manhole 14-11(PDF, 56KB)
14-12 Precast Manhole Ring Extension 14-12(PDF, 45KB)
15-01 Monument Base 15-01(PDF, 65KB)
15-03 Street & Traffic Signs Reference 2/12/19 15-03(PDF, 89KB)
15-05 Standard Utility Location 06/25/24 15-05(PDF, 119KB)
15-07 Guidelines for Traffic Control 15-07(PDF, 84KB)
15-09 Tree Protection During Construction-Sheet 1 11/30/23 15-09.1(PDF, 123KB)
15-09 Tree Protection During Construction-Sheet 2 1/14/15 15-09.2(PDF, 96KB)
15-10 Typical Unpaved Parking Facility-Under 25 Stalls 15-10(PDF, 69KB)
15-11 Parking Facility Under 25 Stalls-Paved or Unpaved 15-11(PDF, 109KB)
15-12 Parking Facility Equal to or Over 25 Stalls 15-12(PDF, 122KB)
15-13 Parking Facility Design Notes 15-13(PDF, 66KB)
15-14 Landscape Notes 15-14(PDF, 59KB)
15-15 Tree Planting 07/25/23 15-15(PDF, 169KB)
15-16 Typical Pond Landscape 15-16(PDF, 81KB)
15-17 Residential Street Tree Standards 2/28/19 15-17(PDF, 100KB)
15-18.1 Horizontal Curve Data 05/16/19 15-18.1(PDF, 57KB)
15-18.2 Legend 05/16/19 15-18.2(PDF, 71KB)
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