July 20, 2021 - Harris County Commissioners Court authorized an additional $4,086,702 in engineering and related consulting services for a study of the feasility of constructing stormwater conveyance tunnels (Phase 2).
April 28, 2020 - Harris County Commissioners Court approved a $2.5 million agreement with an engineering firm to conduct Phase 2 of the feasibility study.
February 11, 2020 - Harris County Commissioners Court authorized negotiations with an engineering firm for engineering and related consulting services for Phase 2 of a feasibility study of constructing stormwater conveyance tunnels.
December 3, 2019 – Harris County Commissioners Court approved a request for qualifications from engineering consultants in connection with the second phase of a feasibility study on the use of large diameter deep tunnels to move stormwater.
September 30, 2019 – Final Report submitted to Department of Commerce, Economic Development Administration for review.
September 23, 2019 – Final Report delivered to HCFCD.
September 17, 2019 – Initial Project Criteria report completed.
August 22, 2019 – Preliminary Inverted Siphon Analysis completed.
August 16, 2019 - Preliminary Tunnel Cost Analysis completed.
August 16, 2019 – Preliminary Geotechnical Desktop Study completed.
August 15, 2019 - Preliminary Opinion of Tunneling Applicability completed.
June 25, 2019 – Houston Faulting Workshop held with local fault experts.
June 10, 2019 – Project Kickoff meeting with project consultant held.