The Grand Parkway is a 180-mile scenic highway featuring four lanes, two in each direction, and intermittent access roads, that will traverse seven counties and encircle the Houston region.
SH 99 segments F-1, F-2 and G are approximately 38 miles long and run through Harris and Montgomery Counties. This part of the project consists of more than 120 bridges, intermittent frontage roads, and comprehensive utility infrastructure.
In 2011, the Texas Department of Transportation (TxDOT) began the procurement process for a design-build contractor for this project. Cardno was engaged by TxDOT’s Houston District to provide subsurface utility engineering services for Segment F2 of the SH 99 (Grand Parkway) project.
Our experienced team undertook a range of services, including providing designating (ASCE Quality Level B) of over 140,000 linear feet of existing utilities and 130 test holes (ASCE Quality Level A) on the 13-mile segment in northwest Houston that runs from just east of SH 249 (Tomball Parkway) to Interstate Highway 45 near the intersection with the Hardy Toll Road.
TxDOT required the project to be completed within a very tight four-month schedule, to ensure the subsurface utility engineering deliverables could be included in the Request for Detailed Proposal (RFDP) to design-build teams bidding on the project.
To meet this schedule, Cardno dedicated two, two-man subsurface utility engineering crews to the project full time until the designating (ASCE Quality Level B) was complete. Locating (ASCE Quality Level A) test hole work on the project was also challenging, with over 130 test hole locations needing to be completed within a couple months.
Cardno drew from our national resource pool, bringing in extra vacuum excavation trucks and personnel from other offices to run three vacuum excavation crews concurrently on the project. All fieldwork was completed within our target timeframe, plan quality reviews were completed and the subsurface utility engineering deliverables were provided to TxDOT on schedule.