- U.S. 380 Feasibility Study
The U.S. 380 Collin County Feasibility Study evaluated potential alignments that would increase capacity, relieve congestion, support economic growth and improve safety across rapidly growing Collin County. The study assessed projected travel demand, identified feasible routes, and determined the design and right-of-way needed to convert U.S. 380 into a freeway across the county.
The existing U.S. 380 corridor passes through seven communities and varies from four lanes to six lanes, with both at-grade and grade-separated intersections. The corridor was broken into five distinct sections to support development of freeway alignments and evaluate access to the McKinney National Airport, U.S. 75, north-south arterials, and Lavon Lake, a reservoir managed by the U.S. Army Corps of Engineers (USACE).
The team developed more than 100 alignment options and implemented a robust outreach process to engage stakeholders, elected officials and the public. The number of alignments was quickly reduced to five for more detailed study. The study team also identified potential environmental constraints, including utilities, equine therapy facilities, landfills, floodplains, public lands, historic resources, and community facilities. Access and capacity improvements would also impact numerous commercial properties, community facilities and major employers.
We facilitated three rounds of public meetings at multiple locations and conducted more than 150 meetings with agency partners, stakeholder cities, county leaders, residents, and business and property owners. The team addressed more than 18,000 comments, with only 4% of respondents in favor of the no-build alternative. Using ESRI ArcGIS pro, the team geocoded each respondent’s address and separated them by city, neighborhood and proximity to discern trends.
Our team is leading the project into the next phase, with two environmental impact statement (EIS) projects in the central portion of the county, including rapidly the developing area around the City of McKinney. They are advancing the recommended alternative and other reasonable alternatives through schematic design in support of completing the National Environmental Policy Act (NEPA) process in two years.
- Alternatives analysis
- Public involvement
- Electronic surveys
- USACE coordination
- Geographic information system (GIS) analysis
- Environmental services
- Traffic forecasting