Engineering Standards

The City of Delaware’s Engineering Standards are maintained by the City Engineer and included on this page. The Engineering Standards and are comprised of standard construction drawings, the Infrastructure Design Manual, general notes, plan notes, supplemental specifications, and design & construction policies.

In general, the City follows the City of Columbus Construction and Material Specifications as indicated in the general notes. Where applicable, Ohio Department of Transportation Construction and Material Specifications may be used for city capital improvement projects and land development projects affecting the state highway system.

Update Notices

City Code Section 903.01 provides that "the City Manager shall have the authority to adopt and periodically update standard construction specifications and regulations for all public improvements and connections thereto, and all developments in the City or under City jurisdiction".

When updates to the Engineering Standards are issued, a notice will be posted below with an explanation of the changes being issued. To sign up for email notifications when updates are issued, email engineeringservices@delawareohio.net and request to be added to the Engineering Standards update email distribution list.

Engineering Standards Update - September 25, 2025

Standard Construction Drawings

Visit the separate Standard Construction Drawings page.

Infrastructure Design Manual

Entire Infrastructure Design Manual(PDF, 20MB)
Access individual chapters and appendices below.

Chapters

Chapter Title Date
1 Introduction & Adoption(PDF, 96KB) 12/31/2018
2 Abbreviations(PDF, 98KB) 12/31/2018
3 Engineering Plan Review Process(PDF, 122KB) 12/31/2018
4 Engineering Plan Format & Content(PDF, 146KB) 12/31/2018
5 Record Plan and Digital Submissions(PDF, 120KB) 12/31/2018
6 Survey Standards(PDF, 110KB) 12/31/2018
7 Roadway Design(PDF, 172KB) 12/31/2018
8 Traffic Impact Study Standards(PDF, 150KB) 12/31/2018
9 Access Management Guidelines(PDF, 149KB) 12/31/2018
10 Bike and Pedestrian Path Guidelines(PDF, 612KB) 12/31/2018
11 Traffic Signals(PDF, 2MB) 12/31/2018
12 Street Lighting(PDF, 667KB) 9/22/2025
13 Fiber Optic Conduit and Cable(PDF, 113KB) 12/31/2018
14 Street Tree Planting(PDF, 87KB) 12/31/2018
15 Stormwater Management(PDF, 2MB) 12/31/2018
16 Stormwater Quality(PDF, 4MB) 7/10/2023
17 Erosion Control/Water Quality(PDF, 100KB) 12/31/2018
18 Water and Sewer Service Policy(PDF, 118KB) 12/31/2018
19 Water Distribution Design(PDF, 159KB) 12/31/2018
20 Sanitary Sewer Design(PDF, 132KB) 12/31/2018

Appendices

Appendix Title Date
A Plan Review and Construction Inspection Fees Form(PDF, 173KB) 12/31/2018
B Design Exception Request Form(PDF, 209KB) 12/31/2018
C Storm Sewer Utility Rate Calculation Sheet(PDF, 185KB) 12/31/2018
D Standard Layers for DXF Files(PDF, 194KB) 12/31/2018
E Ladder Truck Turning Performance Analysis(PDF, 987KB) 12/31/2018
F Airport Proximity to Stormwater Basin Criteria(PDF, 7MB) 12/31/2018
G Stormwater Best Management Practices O&M Agreement(PDF, 179KB) 12/31/2018

Plan Notes

Supplemental Specifications

The following are City of Delaware Supplemental Specifications

Design & Construction Policies

Contact Us

Engineering
440 East William Street
Delaware, OH 43015
740-203-1810
Email

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