Harris County Flood Control District County-Wide Master Plan and On-Call Services, Houston, TX

Harris County Flood Control District County-Wide Master Plan and On-Call Services, Houston, TX

Harris County Flood Control

RPS has provided on-call drainage services to the Harris County Flood Control District for more than 15 years. More recent projects include assisting in the preparation of new master plans for the county’s 22 watersheds to determine flood reduction needs. The use of Geographic Information Systems (GIS) technology allow the plans to be “living documents” that can be electronically updated as necessary. The project scope includes plans for four watersheds – Buffalo, Clear Creek, Luce and White Oak bayous – totaling more than 300 square miles. Project objectives are accomplished through highly technical hydrologic and hydraulic analyses for major watersheds:

  • Used state-of-the-art computer software (HEC-GeoRAS, HEC-GeoHMS, ArcMap, Spatial Analyst, and 3-D Analyst) to prepare all technical analysis in the GIS environment
  • Developed sub-basins and catchments (200 acre + / -) using the LiDAR-based DEM and GIS software
  • Developed catchment flow paths and defined preliminary future channel alignments and right-of-way requirements in undeveloped areas
  • Determined level-of-service for existing channels using the new TSARP HEC-RAS models
  • Mapped floodplains for each frequency, determined flood-prone areas and developed strategies