Throughout the development of a project, features of a building or site are likely to change as the developer has changes throughout the construction process. These drawings are necessary for any changes to maintain an accurate record of the building as it exists at the time of completion and sign-off.
When are As-Built Drawings Required?
As-built drawings are required for:
- Water and/or sanitary sewer service connections
- Doghouse manhole for service connections
- Irrigation system connections
- Water main extensions
- Fire lines (sprinkler lines)
- Fire hydrants (including relocations of existing hydrants)
- Sewer main extensions
- Sewer outfalls
- Pump stations and force mains
- Industrial use sewers
- Storm drainage conveyance systems within the right of way or private property
- Stormwater Control Measures (see Section 8.6)
- New streets (including horizontal & vertical design data)
- Extensions of existing streets
- Other improvements that require permits
Approved as-built drawings are required prior to the installation of water meters and sewer connections and prior to issuance of the certificate of occupancy.
As-built Review Process
The consultant shall submit the as-built drawings submittal package through the Development Services
Center online portal (http://dsc.durhamnc.gov/238/2495/As-built-Drawing-Engineering-submittalp?activeLiveTab=widgets). Plans are turned-around within 10 business days. Comments are provided as redlines on the plans.
The first submittal shall consist of:
- As-built Drawing Submittal Checklist
- Fee = $100 base fee x # of phases + 4% technology surcharge
- Electronic submittal:
- As-built drawings
- Recorded plats of right of ways and easements
- Engineering Certification for Water Extension Form
- Engineering Certification for Sewer Extension Form
- Request for Certificate of Compliance or Infrastructure Acceptance Inspection Form
Include the As-built Drawing Submittal Checklist with all submittals. Include previously redlined plans on resubmittals. The Developer shall submit as-builts to the Stormwater Services Division for the Stormwater Control Measures with the SCM As-built Drawings Submittal Checklist in accordance with Reference Guide for Development: Section 8.6 As-built Certification Requirements for SCMs in the City of Durham. See the Video Inspections page for information on the submittal of the video inspection of utilities and certified report of video inspection (CCTV requirements).
As-built Drawings Checklist
Show and label all constructed improvements as noted below:
- Make plans 24”x36” size per approved construction drawings.
- Provide a cover sheet with a vicinity or site plan map.
- Correct the construction drawings to the as-built condition. The corrections shall be legible.
- Remove "Proposed" from all locations unless applicable.
- Scale horizontal distances within 5-feet and vertical distances within 6-inches. Redraw items to correct locations, if actual location differs by more than this.
- Differentiate new construction from existing infrastructure.
- Show as-built of on and off-site sidewalk and curb cuts.
- Show and label all abandoned water, sewer, storm, etc.
- Label all installed pipe sizes, pipe materials and pipe locations (inverts or top elevations).
- Show on plan view:
- water connections as dashed lines
- sanitary sewer connections as solid lines
- For subdivisions, reference water meter and sanitary sewer service cleanout locations to the nearest property lines to the nearest 0.1-feet. For non-subdivision or commercial, tie down to two physical features.
- If water-only project: locate connections by station from nearest mainline valve or hydrant valve (example: WM 2+00). Label 0+00 at the valve where stationing begins with an arrow indicating the direction that stations run. Stations should generally run in the same direction for each street.
- If sanitary sewer-only or water and sanitary sewer project: locate services with distance from property corner or from station from nearest downstream manhole (example: W S 1+80).
- Show on plan view distances between all water line valves, tees, bends, etc. (example: 500-feet valve to tee).
- Provide for water mains a separate enlarged detailed sketch on the plan view above all intersecting water mains and fire hydrants showing as-built distances between valves, hydrants, crosses, tees, etc.
- Tie down all FDC, PIV and BFPs.
- Show and label if gate valve is in a manhole.
- Show rim elevations to air release valves.
- Show and tie down grease outlets and interceptor to dumpsters.
- Show on plan view and profile view as-built stations for all sanitary sewer and storm drainage manholes (example: MH Sta. 3+01.59).
- Show on plan and profile view as-built manhole-to-manhole distances for sanitary sewer and storm drainage manholes (example: 301.59 MH to MH). Measure distances in the field from center of manhole cover to center of manhole cover.
- Show on profile view as-built manhole rim elevations. (example: RIM 810.10).
- Show as-built ground elevations to all outfalls.
- Show all water mains conflicts with as-built dimensions.
- If a reverse tap was approved for the project, provide a 3-D dimensioned enlarged sketch.
Electronic Submittal Requirements
A “Frequently Asked Questions” section and an “Example Project File” of the as-builts digital submittals are available on the City’s Digital Submittal Information page (https://durhamnc.gov/997/Digital-SubmittalInformation).