This is a partnership project with the City of Baytown to improve storm sewer systems, make channel conveyance improvements and construct stormwater detention basins along Hull Gully, HCFCD Unit # Q103-00-00, in the Danubina/East James Area. Hull Gully is a tributary of Cedar Bayou.
The purpose of this project is to reduce the risk of flooding in the Danubina and East James Area of Baytown. The watershed and project area has experienced significant flooding, including during Hurricane Harvey in 2017. In four days during Hurricane Harvey, the City of Baytown received approximately 40 inches of rain and more than 3,500 homes in the watershed were impacted. A master drainage study was then completed for the City of Baytown in 2020 with the goal of identifying opportunities to reduce flood risk.
The study used Atlas 14 rainfall data to evaluate flood risk for various ACE (Annual Chance Events) and recommended improvements with the goal of reaching a 5-year channel capacity along the storm sewer pipe on Hunnicutt Street. As a result of the study, the City of Baytown has prioritized the systems identified by the study as a high priority project.
This project consists of two phases. Both phases (phase 1 and phase 2) will take place concurrently, with the intention of the Preliminary Engineering stage for Phase 2 running simultaneously with the Design stage of Phase 1.
Phase 1, which is currently in the Design stage consists of the proposed East James Area storm sewer improvements. In the master drainage study for the City of Baytown, recommendations included the replacement of approximately 4,135 feet of storm sewer pipe along Hunnicutt Street. For the East James area, the master drainage study recommended a parallel trunkline with the same size as the existing line. The Design stage of Phase 1 will further evaluate channel improvements, mitigation requirements and required right-of-way.
Phase 2, which is currently in the Preliminary Engineering stage, consists of Hull Gully (Q103-00-00) channel conveyance improvements. As part of this project, stormwater detention basins for mitigation will be constructed at multiple locations. The specific sites will be shared with the community once finalized during the Preliminary Engineering stage.