Coronavirus Update:

MHFD is going remote (temporarily). Public safety is MHFD’s primary concern. To ensure the wellbeing of our employees, MHFD staff will be working remotely for the foreseeable future. In doing so, we will live up to our social responsibility to prevent the COVID-19 from spreading further, while ensuring business continuity that supports our communities and the economies in which we operate. Wishing everyone health and safety during these unprecedented times.

Physical Map Revision: 8-Floodplain Study

8-Floodplain Study

From 2013 to 2014, Mile High Flood District (MHFD) and Federal Emergency Management Agency (FEMA) began a cooperative effort to get a number of locally developed Flood Hazard Area Delineation (FHAD) studies incorporated into the FEMA Flood Insurance Rate Maps (FIRMs).  A Risk Mapping Assessment and Planning (Risk MAP) project that used the Physical Map Revision (PMR) process would revise the FIRMs.  The FHADs had been produced to identify and update flood risk potential and floodplain boundaries.

The 8-Floodplain Study region consists of eight drainage basins that include the following streams:

  • Happy Canyon Creek
  • Badger Gulch
  • Green Acres Tributary
  • Lower Coal Creek (Downstream of Yale)
  • Lower Murphy Creek (Downstream of Alameda)
  • Senac Creek (Downstream of Aurora Reservoir)
  • Toll Gate Creek
  • Lower East Toll Gate Creek (Downstream of Hampden)
  • West Toll Gate Creek
  • Unnamed Creek
  • Cherry Creek (Downstream of Cherry Creek Dam)
  • Littles Creek
  • Marston Lake North Drainageway

Getting the FHAD information on the FIRMs help residents and business owners make informed decisions about personal safety and protecting financial assets. Having current flood mapping also allows community planners, local officials, engineers, builders and others to make determinations about where and how new structures, subdivisions, developments, and redevelopments should be built to reduce risk of flood damage.

Here is a list of materials that can help you learn more about the studies and their potential impact on your property. You can also view proposed flood mapping changes with this link.

Physical Map Revision: 8-Floodplain Study


Provides information on how FHADs are developed, how FHAD data gets incorporated into the FEMA FIRM, and how the revised FIRM affects property owners and local regulations.

Property Insurance Fact Sheet

Provides information about common insurance scenarios property owners may experience when a new FIRM becomes effective and how to reduce insurance rates.

Letter of Map Revision (LOMR) versus Appeal fact sheet

Provides information on these processes for changing preliminary FIRM information, and when to use a LOMR versus an Appeal process.

Renters Insurance Fact Sheet

Provides information about insurance options available for non-owner occupied structures when a new FIRM becomes effective and how to reduce insurance rates.

*Terms and Definitions

Estimate Project Timeline (subject to change)

8-Floodplain Study Timeline

Have more questions?

Your community Floodplain Administrator is the best source of information about flood risk.

Arapahoe County
Mr. Chuck Haskins

City of Aurora
Mr. Craig Perl

City of Centennial
Ms. Stacey Thompson

City and County of Denver
Mr. Jeremy Hamer

Douglas County
Ms. Janet Herman

City of Glendale
Mr. Josh Bertrand

City of Littleton
Ms. Carolyn Roan

City of Lone Tree
Mr. Jacob James

Town of Parker
Michael Grabczyk


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