Title
Notice/Advertisement Title: Stormwater Drainage Manual Regulation
Contact Name: Douglas Holz
Contact Telephone Number: (614) 645-2793
Contact Email Address: DPU_Private_Development@columbus.gov
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OFFICIAL NOTICE
STORMWATER DRAINAGE MANUAL REGULATION
FINAL ADOPTION
Pursuant to Columbus City Code 1145.11 and 1145.81, the Department of Public Utilities hereby provides notice that the Director has adopted the Stormwater Drainage Manual regulation. The Manual provides the stormwater design standards for development or redevelopment of public and private property. This regulation replaces the previous Stormwater Drainage Manual, which was previously updated in 2024.
The following changes were made from the previous regulation:
1. Preface - Legacy Plans - Clarified expired plans above and beyond the expected year change in this section.
2. Introduction - Clarified variance application requirements and added standardized forms and checklists for all types of variances.
3. Section 1.4 - Clarified “floodplains” applies to 100-year flood events.
4. Section 2.3.2.2 - Clarified “trench” dams requirement.
5. Section 2.3.2.5 -Added storm sewer abandonment requirements.
6. Section 3.1 - Sediment Management - Clarified timing and restrictions of fountains and aerators in sediment trapping facilities.
7. Section 3.1 - Accessibility - Clarified stormwater control practice accessibility requirements for inspections.
8. Section 8 - Incorporated the “Regulation for Control of Stormwater Pollution from Land Disturbance” manual into new section of the Manual.
9. Appendix A - Added of Manning’s coefficient and velocity to storm sewer calculations.
10. Applicability Table, 3.1, 3.2, 3.3, 3.4.1, 3.5.1, 3.5.3, 4.2.2, 4.3.1, 4.3.2, 6, 7.1.5, and Appendix E - Removed Appendix E and 7.1.5, adopted Ohio EPA Stormwater Pollution Prevention Plan (SWP3) template within text of the Manual, and provided clarification between the Stormwater Management Report and the SWP3 throughout the sections listed.
11. Appendix C - Added numbering to notes in Exhibit A and revised contact information for inspections.
12. Appendix E - Shifted Type A Variance application form from Appendix F up to Appendix E.
13. Appendix F - Added Type I Variance application form.
14. Appendix G - Added Type II Variance application form.
15. Appendix H - Added Type III Variance application form.
Pursuant to Columbus City Code 121.05, this regulation will be effective 10 days after this publication. The revised Stormwater Drainage Manual may be found online at http://www.columbus.gov/stormwater/.