Duck Creek Letter of Map Revision

OWNER

City of Richardson

ADDITIONAL INFORMATION

Service: Floodplain Management

Duck Creek Letter of Map Revision

Richardson
Texas

Duck Creek, and one of its major tributaries, are the primary channels running through the city of Richardson. Duck Creek is a major tributary of the East Fork of the Trinity River. Walter P Moore was tasked with updating the creek’s existing floodplain map. A complete hydrologic and hydraulic analysis of the Duck Creek watershed in support of a revision to the Flood Insurance Rate Map to reflect channel modifications, bridge crossing additions and updates, and development in the watershed was performed. The 1% and 2% storms, and floodway were re-delineated to reflect the updated conditions. The analysis was submitted to FEMA for review.