Watershed Models and Floodplain Mapping

The District does not distribute watershed and/or floodplain models.

In 2011, the Upper Brushy Creek WCID (District) received a grant from the Texas Water Development Board to develop a Flood Protection Plan (FPP). The FPP identifies and prioritize existing creek flooding concerns and evaluate benefit analyses of each alternative of potential mitigation alternatives for the highest priority concerns. Download a study excerpt (10MB).

To accomplish the FPP goals, the District updated modeling for the Upper Brushy Watershed including:

• Development of improved watershed hydrologic (runoff prediction) models, consistent with current development and available recently improved topographic data; and
• Development of improved watershed hydraulic (flood elevation prediction) models, consistent with current development and available recently improved topographic data.

At the request of the City and County Floodplain Administrators, the FPP models were designed to form the basis for revised Federal Emergency Management Agency (FEMA) regulatory floodplain maps and were developed per Guidelines and Specifications for Flood Hazard Mapping Partners. The District leveraged financial support from FEMA and TWDB to further develop the models and initiate the Physical Map Revision (PMR) process. The models and supporting data were submitted to FEMA in 2016.

As the PMR process continued, the District role diminished. FEMA and the local communities Floodplain Administrators assumed their traditional roles associated with the Physical Map Revision (PMR) process. They completed the process and the maps became effective in December 2019.

The District do not have authority or purview over floodplain and does not maintain FEMA floodplain models. The District does not distribute watershed and/or floodplain models.

Who should I talk to if I have questions?

Property owners or other persons who have questions regarding the PMR or floodplain maps should consult their community’s Floodplain Administrator. This is the local official who keeps all of the community’s flood hazard maps and Flood Insurance Study (FIS) report, and who corresponds with FEMA at various stages of the revision process.

Additional information

To view floodmaps, please contact your local Floodplain Administrator, visit the FEMA website, or call the FEMA Map Information exchange toll free at 1-877-FEMA MAP (1-877-336-2627).