Hydrology & Hydraulics

As one of the most experienced Hydrology and Hydraulics firms in Texas, we know that managing flood plains is more critical than ever. We’ve served as the primary consultant for numerous Hydrology and Hydraulics projects to protect communities and improve the quality of life for Texans. 


  • Harris County Flood Control District (HCFCD) since 1980 

  • $20 million flood diversion channel at Clear Lake, Texas for the HCFCD and Army Corps of Engineers 

  • $10 million drainage improvement program on East and West Bouldin creeks for the City of Austin 

  • $30 million storm water detention basin for Mud Gully in Harris County 



  • Master drainage plans

  • Regional detention studies

  • Flood studies

  • FEMA mapping

  • Conditional Letter of Map Revision (CLOMR)

  • Letter of Map Revision (LOMR)

  • Physical Map Revision (PMR)

  • Impact and mitigation analysis

  • Inundation tool/structural inventory

  • National Pollutant Discharge Elimination NPDES Compliance

  • Major outfall locating with hand-held GPS and GIS support

  • Outfall drainage delineation with LIDAR and GIS technology

  • Storm sewer systems

  • Open channel drainage systems

  • Pump stations

  • Detention sites



  • Clear Creek Watershed

  • SWEC Detention Facility, Pearland

  • Whispering Lakes Detention Facility, League City

  • Mary’s Creek Detention Facility, Pearland

Covington Woods Drainage

Covington Woods Drainage

The City of Sugar Land retained Dannenbaum to evaluate the entire drainage system of Covington Woods Subdivision and to make specific recommendations regarding frequent street ponding and sheet flow conditions. This project involves a combination of channel improvements, storm sewer and inlets that are proposed to address street flooding. Due to the construction costs, a phasing plan was recommended.

West Marys Creek

West Marys Creek

Dannenbaum investigated the feasibility of a regional detention site on Mary's Creek in the City Pearland. This project was a regional detention pond with approximately 765-acre-feet of storage. Additional work included a 20,000 GPM pump station, channel improvements, and design of a reconfigurable weir.

Whispering Lakes Detention Facility

Whispering Lakes Detention Facility

Clear Creek Watershed

Clear Creek Watershed

This project involved a comprehensive storm water management plan and environmental assessment (EA) for the Clear Creek Watershed encompassing approximately 260 square miles of drainage area and 50 miles of network channels.

©2021 by Dannenbaum Engineering Corp.

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