Stormwater Development

We advise all development within Aspen to utilize the resources provided. Here you will find documents pertaining to Stormwater Development within Aspen’s Municipal Code and Urban Runoff Management Plan. As an addition, we have included calculation worksheets, as well as, several best management practices that should be considered within your design.

Aspen's Urban Runoff Management Plan (URMP)

Introductory Documents of Plan

  1. Stormwater Management Guide Cover (PDF)
  2. Urban Runoff Management Plan (PDF)
  3. Urban Runoff Management Plan Introduction (PDF)
  4. Urban Runoff Management Plan Table of Contents (PDF)

URMP Chapters 

  1. Chapter 1 Permit Requirements (PDF)
  2. Chapter 2 Rainfall (PDF)
  3. Chapter 3 Runoff (PDF)
  4. Chapter 4 Streets (PDF)
  5. Chapter 5 Detention (PDF)
  6. Chapter 6 Floodplains (PDF)
  7. Chapter 7 Mudflow (PDF)
  8. Chapter 8 Water Quality (PDF)

URMP Appendixes

  1. Appendix A Submittal Checklists (including Maintenance Agreement) (PDF)
  2. Appendix B Equations and Examples (PDF)
  3. Appendix C UDFCD Worksheets (PDF)
  4. Appendix D Floodplain Documents (PDF)
  5. Appendix E Plant List (PDF)

Surface Drainage Master Plan

Associated Municipal Codes