June 1

Projects & Studies

Armand Bayou Stormwater Conveyance Improvements

In September 2016, Harris County Commissioners Court approved an agreement with the Harris County Toll Road Authority to widen and deepen a segment of Armand Bayou from Sam Houston Tollway East to Spencer Highway in connection with a HCTRA project to expand the toll road. Channel improvements along this 2,300-foot section of Armand Bayou will mitigate for increased stormwater flows as a result of the road project.

HCTRA will fund the channel project, which will be managed by the Flood Control District. IDS Engineering Group Inc. is working with the Flood Control District as project design engineer. In December 2016, IDS began field surveys and geotechnical and environmental investigations in the project area:

  • Subsurface utility engineering and topographic surveys gather information about existing above- and below-ground utilities, fences, topography, vegetation and other factors important to project design.
  • Environmental site assessments concern species habitat, cultural resources, stream conditions and other factors.
  • Geotechnical investigations verify existing soil types. This work includes field explorations and soil borings on Flood Control District right of way adjacent to Armand Bayou. Boring equipment will be brought to the site, and can be fairly loud while in operation.

The firm Terracon has been contracted to conduct environmental site assessment and geotechnical investigations, while Halff Associates will perform subsurface utility engineering services. Both are authorized to act as the Flood Control District’s agents in this matter. Their work will be overseen by IDS, which will also perform the topographic survey.

Field surveys and geotechnical and environmental investigations will cover adjacent properties inside and outside of existing public easements, including portions of the public easement that may have been enclosed by private fences. The work helps the Flood Control District fully evaluate various alternatives for improving and maintaining our important drainage infrastructure. It is expected to take approximately 180 calendar days to complete.