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Arapahoe County
Stormwater Management Manual
The Arapahoe County Stormwater Management Manual was adopted by the Board of County Commissioners in January 2007. The Stormwater Management Manual provides requirements for the planning, design, construction, and operation of stormwater facilities within the unincorporated areas of Arapahoe County.

 

Complete Manual 6.2 MB
Table of Contents 99k
Chapter 1 - General Provisions 72k
Chapter 2 - Stormwater Management Policy & Principles 65k
Chapter 3 - Stormwater Management and Development 102k
Chapter 4 - Drainage Report and Construction Drawing Submittal Requirements 157k
Chapter 5 - Floodplain 139k
Chapter 6 - Hydrology 324k
Chapter 7 - Street Drainage 316k
Chapter 8 - Inlets 395k
Chapter 9 - Storm Sewers 248k
Chapter 10 - Conduit Outlet Structures 218k
Chapter 11 - Culverts and Bridges 97k
Chapter 12 - Open Channel Design 423k
Chapter 13 - Storage 1.3 MB
Chapter 14 - Stormwater Quality 2.2 MB
SEMSWA and Use of the Arapahoe County Stormwater Manual 24k


Additional Resources Referenced

Standard Details *
 3.8 MB
Design Checklist *
 104k
Standard Maintenance Agreement (Word)
 42k
Example Drawings and Checklists for Permanent Water Quality Facilities * 24k
Operations and Maintenance (O&M) Manual Template * 24k


* Under final development - please contact SEMSWA at 303-858-8844 for more information.
76 Inverness Dr. E. Englewood, CO 80112 - Phone:  303-858-8844 - Fax: - Email: semswamain@semswa.org