Gauge completed a proof-of-concept study for a gravity flow inverted siphon stormwater tunnel and surface stormwater conveyance improvements for St. George Place Redevelopment Authority – TIRZ 1. The study determined that a gravity flow tunnel fed by a network of large box culverts was a promising solution deserving further study to reduce flood damages in a Low to Moderate Income (LMI) area west of Interstate 610 and north of Interstate 59.

Project ID
T-0100
Status
$140,000,000
Total Budget Appropriation
(To Date)

The second phase of the project was initiated with the support of partners from HCFCD and the City of Houston.

  • The study area is located in the Buffalo Bayou watershed, bounded on the north by Buffalo Bayou, on the east by IH-610, on the south by IH-69, and on the west by approximately Fondren Road.
  • This region has experienced high property loss and flood damage during several significant recent storm events.
  • The region is primarily served by underground drainage systems with very few open channels.
  • Gauge developed a complex hydrodynamic 2-Dimensional (2D) stormwater model for the inlet level, which will be developed for the entire study area for the 2, 10, 25, and 100-year events.
  • Multiple route alternatives, intake and outlet locations will be evaluated as part of the study.

Results from the HCFCD Phase 1 Tunnel study will be used as the foundation for this analysis.