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Drainage Assessment Modeling Phases I & II | City of Temple

Temple, TX

Project Summary: Phase I encompassed  Bird Creek and Friars Creek watersheds. This project provided regional stream and regional pond models, recommended regional detention pond locations and sizing, identified projects to mitigate structural and property flooding along creeks, identified projects to mitigate roadway crossings at creeks, update National Flood Insurance Program (NFIP) Flood Insurance Rate Maps (FIRM) and proposed solutions to address inaccessible streams and creeks for city maintenance.  In addition, KPA and city staff selected focus areas of concern related to properties flooding outside of creek flood plains.

Phase II of the project includes four additional stormwater runoff watersheds in Temple, Texas. The four watersheds comprise approximately 31 square miles of the study area and extend to the Extraterritorial Jurisdiction (ETJ). Work included regional detention pond models and recommendations for locations and approximate volumes, identifying projects to mitigate roadway crossing overtopping at creeks, and updating National Flood Insurance Program (NFIP) Flood Insurance Rate Maps (FIRM). Final deliverables included current (2019) and future (2030) anticipated hydrologic and hydraulic flood plain models in HEC-HMS and HEC-RAS formats, letter of map revisions (LOMR) for each watershed as approved by Federal Emergency Management Agency (FEMA), updated watershed boundary map for each of the studied watersheds and opinions of probable costs (OPC) for mitigations projects based on limited, high-level preliminary engineering within a 10-year implementation window for budgeting purposes.

Project Summary: Preliminary Design