Southeast and East Denver Metro PMR

Maps Will Be Effective 02/17/2017

Urban Drainage and Flood Control District (UDFCD) works with the Federal Emergency Management Agency (FEMA), the Colorado Water Conservation Board (CWCB) and local governments to get 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 uses the Physical Map Revision (PMR) process revises the FIRMs. The FHADs were produced to identify and update flood risk potential and floodplain boundaries in what is being referred to as the Southeast and East Denver Metro area.

The Southeast and East Denver Metro Area consists of six drainage basins that include the following streams:

Cottonwood Creek (upstream of Peoria Street) (2011)

East Toll Gate Creek (Upper) (2010) – Upstream of East Hampden Avenue;
First Creek (Upstream of East 38th Avenue and North Picadilly Road) (2011)

Piney Creek and Antelope Creek (2011);
Upper Second Creek (Upstream of Denver International Airport) (2011); and
Willow Creek (2010) – to East Lincoln Avenue

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.

The Letter of Final Determination (LFD) for the Southeast and East Denver Metro Physical Map Revision was issued on August 17, 2016. These updated FIRM maps will become effective on 02/17/2017, and will be used by lenders and insurance agencies to determine potential mandatory flood insurance requirements.

Pending Flood Insurance Rate Maps (FIRMs) for the Southeast and East Denver Metro PMR project are available from FEMA’s Map Service Center (MSC) at

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: Southeast and East Denver Metro

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.

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.

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


Have more questions?

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

Adams County
Mr. Greg Labrie
Arapahoe County
Mr. Chuck Haskins
City of Aurora
Mr. Craig Perl


City of Centennial
Ms. Stacey Thompson
Douglas County
Mr. Brad Robenstein
City of Greenwood Village
Ms. Ann Woods


City of Lone Tree
Mr. Greg Weeks