C-23 Tributary P118-08-00 Conveyance Improvements

C-23 Tributary P118-08-00 Conveyance Improvements

Recent Action

August 10, 2021 – Harris County Commissioners Court authorized the Flood Control District to apply for a Texas Waters Development Board grant in support of this project

May 19, 2020 – Harris County Commissioners Court approved updates to project details in the 2018 Bond Program List. Update corrects precinct details from Precinct 1, 2, & 4, to Precinct 1 only.

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


This project intends to reduce flooding risks by improving the capacity of Tributary P118-08-00 to convey stormwater during rain events as well as constructing stormwater detention basin(s). Once complete, the preliminary engineering report will identify and evaluate potential flood risk reduction projects for the area. The project may include right-of-way acquisition, design and construction along the tributary.

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

This project is located near the intersection of Tidwell Rd and N Wayside Dr


Tributary P118-08-00 is located south of Tidwell Road. The exact project location is yet to be determined.


This project is currently in the PRELIMINARY ENGINEERING stage. This stage of the project will result in a preliminary engineering report with a recommended project that can be taken to the 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-23 is a potential “Partnership” project. Total allocation for this project is currently $25 million on the Bond Project List, of which approximately $22.5 million would be partnership funding, if granted, and $2.5 million would be local costs.

The Flood Control District applied to the Texas General Land Office for a Community Development Block Grant for Mitigation (CDBG-MIT) grant in October 2020 in the amount of approximately $15.6 million.

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: