Repairs to Tributary K117-00-00

Repairs to Tributary K117-00-00
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Recent Action

May 25, 2021 – Harris County Commissioners Court approved advertising this project for construction contract bidding.

April 13, 2021 – Harris County Commissioners Court authorized an agreement in the amount of $62,830 with an engineering firm for materials engineering and testing services in support of this project.

February 9, 2021 – Harris County Commissioners Court approved negotiations for engineering services in support of this project.

PROJECT DESCRIPTION

This maintenance project will construct a concrete drop structure and stilling basin on the K117-00-00 channel where a concrete-lined channel section running down the middle of Briarcreek Boulevard transitions to an earthen channel downstream (north) of Old Ranch Road. This channel flows onto property owned by the Flood Control District.

The purpose of the drop structure and stilling basin is to reduce the stormwater’s energy at this transition point. Concrete projections that are part of the drop structure, also known as a “baffle,” as well as the stilling basin at the foot of the drop structure, help to slow the stormwater and reduce erosion on the earthen channel.

A repair project was originally planned after the Tax Day Storm of 2016, but a more permanent repair was designed following the subsequent Hurricane Harvey storm of 2017 and later rain events.

This project site is adjacent to another future Flood Control District project, described here.

Example of a “baffle” drop structure on a channel in the San Jacinto River watershed