Q130* Advanced Feasibility Study
The Harris County Flood Control District (HCFCD) initiated the Q130-00-00 Advanced Feasibility Study, which is funded from 2018 Bond Program. The objective of Q130-00-00 Advanced Feasibility Study is to conduct a detailed investigation of the existing flood hazards in the watershed and identify potential future drainage improvements aimed at reducing future flood risk throughout the watershed.
This detailed analysis resulted in a recommendation of a preferred alternative short-term solution to move forward in the Preliminary Engineering Report (PER) phase. The short-term recommendation included channel conveyance improvements, structure improvements from downstream of Crosby Eastgate Road, to upstream of US 90, and construction of two detention ponds containing approximately 30 million gallons of storage volume.
The preferred alternative solution would be improved to a long-term proposed solution, as additional funding becomes available, thereby providing incremental benefits to the watershed as more drainage improvements are constructed. The estimated total construction cost for the short-term preferred alternative, is approximately $17.4 million and the long-term solution cost is approximately $44.9 million. This is based on excavation quantities for basin and channel improvements, with a 20% contingency factor.
*Note: It is worth noting that the right-of-way (ROW) acquisition is an evolving progression and thus the proposed estimates on basin footprint areas and corresponding storage capacities are considered planning-level until tracts and parcels are officially acquired by HCFCD and the detailed design phase commences.