Coal Creek (Lower) & Rock Creek

The Urban Drainage and Flood Control District (UDFCD) performed a Major Drainageway and Planning Study and Flood Hazard Area Delineation services for Coal Creek and Rock Creek. The analysis covers a 54-square-mile area stretching from Colo. 128 in Superior to the northern limits of Erie. The purpose of the study was to analyze the floodplains along 40 stream-side miles of both creeks and create a comprehensive plan that provides recommended improvements to bridges and other structures in the drainageway.

• Coal Creek and Rock Creek Drainageway Master Plan – Due to an extremely large overall file size, this document has been broken into smaller files to aid in downloading.
  • Table of Contents and Executive Summary
  • Sections 1 through 5
    • Introduction
    • Study Area
    • Hydrologic Analysis
    • Hydraulic Analysis
    • Alternative Analysis
  • Sections 6 through 8
    • Recommended Plan
    • Conceptual Design of Selected Plan
    • References
  • Appendix A – Project Correspondence
  • Appendix B through I
    • Hydrologic Analysis
    • Hydraulic Analysis
    • Legal Description
    • Wetland and Riparian Inventory
    • Alternatives Analysis
    • Conceptual Design Information
    • Master Plan Maps
    • Master Plan Profiles