Engineering: Roadway Projects

Below are compilations of transportation and building projects in which Collin County departments play a role. We've sorted these out in an effort to show residents what is currently happening with roadways throughout the county.

City Managed Projects
Project
Limits
Status
Coit Rd.
Vest Ln to Choate Pkwy
Construction: 0% Complete, Tentative Start of Construction: End January 2027
Coit Rd. Intersection Improvements
Coit Rd. at First Street, Prosper Trail and Frontier Parkway

Construction start: 26.8% Complete; End: September 2026

Dallas Pkwy
Lebanon Rd. to Panther Crk Pkwy.
Completed Feb 2026
Fairview Pkwy
Medical Dr. to Ridgeview Dr.
Completed Feb 2026
Frankford Rd.
SH289 (Preston Rd) to Coit Rd

Construction: 100% Complete; Ended: March 2026

Leonard Rd.
Foster Crossing to Collin County Outer Loop

Construction: 99% Complete; Tentative End of Construction: April 2026

Lucas Rd.
FM 2551 to Country Club Rd.
ROW/90% Design; Tentative Start of Construction: June 2026
McMillen Dr.
McCreary Rd. to Country Club Rd.

Construction: 55% Complete; Tentative End of Construction: Spring 2027

N. Greenville Ave
CR 850 to ISD Property Line

Construction: 40% Complete; Tentative End of Construction: September 2026

Wilmeth Rd.
Lake Forest Dr. to Hardin Blvd.
Substantially Complete March 2026
Project
Coit Rd.
Limits
Vest Ln to Choate Pkwy
Status
Construction: 0% Complete, Tentative Start of Construction: End January 2027
Project
Coit Rd. Intersection Improvements
Limits
Coit Rd. at First Street, Prosper Trail and Frontier Parkway
Status

Construction start: 26.8% Complete; End: September 2026

Project
Dallas Pkwy
Limits
Lebanon Rd. to Panther Crk Pkwy.
Status
Completed Feb 2026
Project
Fairview Pkwy
Limits
Medical Dr. to Ridgeview Dr.
Status
Completed Feb 2026
Project
Frankford Rd.
Limits
SH289 (Preston Rd) to Coit Rd
Status

Construction: 100% Complete; Ended: March 2026

Project
Leonard Rd.
Limits
Foster Crossing to Collin County Outer Loop
Status

Construction: 99% Complete; Tentative End of Construction: April 2026

Project
Lucas Rd.
Limits
FM 2551 to Country Club Rd.
Status
ROW/90% Design; Tentative Start of Construction: June 2026
Project
McMillen Dr.
Limits
McCreary Rd. to Country Club Rd.
Status

Construction: 55% Complete; Tentative End of Construction: Spring 2027

Project
N. Greenville Ave
Limits
CR 850 to ISD Property Line
Status

Construction: 40% Complete; Tentative End of Construction: September 2026

Project
Wilmeth Rd.
Limits
Lake Forest Dr. to Hardin Blvd.
Status
Substantially Complete March 2026
Collin County Managed Projects
Project
Limits
Status
CR 398

60% Design and ROW acquisition underway

CR 557
US 380 to SH 78

Design in Progress

FM 546 Phase I
CR 393 to US 380

90% Design; Tentative Start: Summer 2026

FM 546 Phase II
Airport Dr. to CR 393
County is managing the schematic for TxDOT.  Schematic is 95% complete.
Outer Loop - Second Service Roads
Collin County Line to Choate Pkwy
60% Design; Tentative Start of Construction: Mid 2026
Outer Loop Segment 1
US 75 to TX 121
Schematic Design 30% Complete
Outer Loop Segment 3
FM 2478 to US 75
Construction: Substantially Complete; Tentative End of Construction: April 2026
Outer Loop Segment 5
TX 121 to CR 655
Alignment Study Underway.  2nd Public Meeting to be held Q2 2026
Outer Loop Segments 2 &4
US 380 to Rockwall County Line
Schematic Design is in Progress
Outer Loop/US 75 Intersection
Intersection Study in Progress
Park Blvd
Parker Rd to Spring Creek Pkwy

Construction: 38.6% Complete, Tentative End of Construction: Late 2027

SE Mobility Study
Report Completed December 2024
Project
CR 398
Limits
Status

60% Design and ROW acquisition underway

Project
CR 557
Limits
US 380 to SH 78
Status

Design in Progress

Project
FM 546 Phase I
Limits
CR 393 to US 380
Status

90% Design; Tentative Start: Summer 2026

Project
FM 546 Phase II
Limits
Airport Dr. to CR 393
Status
County is managing the schematic for TxDOT.  Schematic is 95% complete.
Project
Outer Loop - Second Service Roads
Limits
Collin County Line to Choate Pkwy
Status
60% Design; Tentative Start of Construction: Mid 2026
Project
Outer Loop Segment 1
Limits
US 75 to TX 121
Status
Schematic Design 30% Complete
Project
Outer Loop Segment 3
Limits
FM 2478 to US 75
Status
Construction: Substantially Complete; Tentative End of Construction: April 2026
Project
Outer Loop Segment 5
Limits
TX 121 to CR 655
Status
Alignment Study Underway.  2nd Public Meeting to be held Q2 2026
Project
Outer Loop Segments 2 &4
Limits
US 380 to Rockwall County Line
Status
Schematic Design is in Progress
Project
Outer Loop/US 75 Intersection
Limits
Status
Intersection Study in Progress
Project
Park Blvd
Limits
Parker Rd to Spring Creek Pkwy
Status

Construction: 38.6% Complete, Tentative End of Construction: Late 2027

Project
SE Mobility Study
Limits
Status
Report Completed December 2024

For a comprehensive list of TxDOT projects and information, please click on links below: