C-30 Tributary P118-27-00 Conveyance Improvements

C-30 Tributary P118-27-00 Conveyance Improvements

Recent Action

September 24, 2019 – Harris County Commissioners Court authorized and initiated this project


Bond Project C-30 will construct channel conveyance improvements and construct a stormwater detention basin to reduce the risk of flooding by taking in excess stormwater during heavy rain events and then releasing it slowly back to the channel when the threat of flooding has passed.

As part of the preliminary engineering stage, the Flood Control District is evaluating various alternatives, including channel conveyance improvements and stormwater detention basins, to determine the optimal solution for reducing the risk of flooding in this area.

This project is part the Watershed-Wide Project Implementation Program for Halls Bayou.

This project is located near the intersection of Gulf Bank Rd and Airline Dr


Tributary P118-27-00 is located between Sweetwater Lane and Airline Drive. The exact project location is yet to be determined.


This project is currently in the PRELIMINARY ENGINEERING stage and is expected to wrap up in summer 2022. This stage of the project will result in a preliminary engineering report with a recommended project that can be taken to Harris County Commissioners Court for approval and then advanced to the DESIGN stage. The preliminary engineering report may identify needed right-of-way acquisition, utility relocation and a preliminary cost estimate.

Bond Project Listing

Bond Project C-30 is a potential “Partnership” project. Total allocation for this project is currently $12 million, of which approximately $10.8 million would be partnership funding, if granted, and $1.2 million would be local costs.

Additionally, the Flood Control District has been aggressively pursuing multiple grant opportunities, including a grant application to the Texas General Land Office (GLO) for Community Development Block Grant for Mitigation (CDBG-MIT) funding in October 2020 in the amount of about approximately $23.9 million for this project. While that specific application was not awarded, as of December 2021, Harris County is continuing to work with the GLO on a potential $750 million commitment of CDBG-MIT funding for flood risk reduction projects across Harris County.

Public Information Session

A series of projects in the Halls Bayou watershed are included in two separate applications for federal funding through the Community Development Block Grant for Mitigation (CDBG-MIT) Program. The projects included are Bond Project IDs: C-01, C-23, C-24, C-26, C-28, C-30 and C-41. A virtual Public Information Session to discuss these projects was held on:

Date: Wednesday, September 23, 2020
Time: 6:30 p.m. to 7:30 p.m.

The official public comment period for the CDBG-MIT applications will be open from October 3 – October 16, 2020. We encourage residents to learn more about the application process, submit a comment and view the meeting presentation and video: