August 23, 2022 – Harris County Commissioners Court approved a change in contract adding 12 calendar days with no change to the contract amount in support of this project.
June 28, 2022 – Harris County Commissioners Court acknowledged substantial completion of Phase 4 construction.
January 4, 2022 – Harris County Commissioners Court approved a Change in Contract No. 3 with an engineering firm adding 22 calendar days with no change to the contract amount in support of Phase 4 channel conveyance improvements.
January 7, 2020 – Harris County Commissioners Court awarded a $6.48 million contract for construction of this phase.