SH 5

TxDOT District: Dallas is reconstructing and widening State Highway 5 in Melissa, Texas, from SH 121 to north of the Collin County Outer Loop. The project, identified in TDLR filings as CSJ: 0047-04-031, involves converting a two-lane rural highway into a four-lane urban roadway. The estimated cost for this new construction work is $44,707,948, spanning approximately 157,757 square feet of project area.

Project Scope and Design

CivilTech Engineering, Inc. serves as the design firm of record for this infrastructure improvement. The scope specifically targets the widening and reconstruction of the highway segment within Collin County. This project utilizes public funds and is located on public land, qualifying it as a Federally funded roadway project. The registered square footage of 157,757 sq ft results in a computed cost of $283 per square foot, a figure that reflects the complexity of urban highway expansion compared to standard building projects.

Construction was scheduled to begin in January 2023, with a planned completion date of September 2024. TDLR completed the plan review process in August 2022. Despite the scheduled completion date having passed, the TDLR status remains Review Complete, and the agency has not yet recorded a final inspection. This indicates that the current state of the site is not confirmed in the public record as finished. The scheduled build window of 609 days is significantly longer than the county median of 212 days for new construction filings, reflecting the scale of the highway work.

Regional Context and Comparisons

The estimated cost of $44,707,948 places this project in the top quarter of estimated costs for new construction filings in Collin County, where the median is $800,000. The $283 per square foot cost is above the county median of $120 per square foot. CivilTech Engineering, Inc. has six other TDLR-registered projects totaling $128,281,588, including work in Anna and Conroe. TxDOT District: Dallas has six other registered projects totaling $60,982,724, with locations in Addison, Dallas, and Grand Prairie.

Other registered projects in the immediate area include the GTP Building A and GTP Building B new constructions, as well as the Shop at Avery Pointe renovation. The surrounding ZIP code 75454 has a population of approximately 20,137, with a median household income of $135,556. The median owner-occupied home value in this Census area is $421,700. Collin County’s unemployment rate was 4.6 percent in June 2026, a figure that is higher than a year earlier.