US 380 Improvement McKinney
PROJECT WEBSITE: https://www.txdot.gov/projects/hearings-meetings/dallas/2023/us380-project-1005…
All dates below are specific to the schedule of the Environmental Review and Permitting processes for this project.
ENVIRONMENTAL REVIEW AND PERMITTING STATUS
COMPLETE
COMPLETION DATE OF ENVIRONMENTAL REVIEW AND PERMITTING
ENVIRONMENTAL REVIEW AND PERMITTING PROCESSES
COMPLETED
SECTOR
Surface Transportation
CATEGORY
Project Category
DOT Projects
LEAD AGENCY
Texas
Description:
US 380 is proposed to be an eight-lane, access-controlled freeway with one-way frontage roads on each side within an anticipated right-of-way width of between 330 to 350 feet depending on location. (Frontage roads may be eliminated, and the primary travel lanes may be depressed/lowered or elevated (on bridge/viaduct) to minimize impacts on sensitive resources). The freeway facility would also include ramps, direct connector roadways, frontage roads, and arterial roadways to support connectivity to the existing roadway network. Grade-separated interchanges would be constructed at major crossroads including US 75/ SH 5 (possible multi-level interchange), existing US 380 (both project termini), and other major local connectors as determined needed and feasible. The typical freeway section would consist of: 4 12-foot-wide travel lanes in each direction, 12 foot-wide turn lanes, 10 foot-wide inside shoulders (4 foot-wide may be considered in some locations), and 10 foot-wide outside shoulders. Ramps would be 14 feet-wide with 2 foot-wide inside shoulders and 6 foot-wide outside shoulders, with curb & gutter. Bridges/overpasses along the main lanes would have a desirable vertical clearance of 18.5 feet (minimum of 16.5 feet); vertical clearance over railroads would be 23.5 feet. Ramps, direct connector roadways, frontage roads, and arterial roadway improvements would follow similar design criteria. Median barriers would be included. As the study advances, the following decisions will be made based on location and to minimize impacts if appropriate: bridge/structure type, type/location of permanent/temporary easements, minimum ROW width (compressed sections), locations of depressed/lowered roadway sections, lighting/signage/ITS.