Here are the latest updates on nine transportation projects happening around the Conroe area.

Upcoming projects

1. I-45 high-occupancy vehicle extension

Project: Between FM 1488 and South Loop 336, I-45 will undergo a high-occupancy vehicle lane extension.

Update: This project was set to begin in the first quarter of 2025, according to an April 17 media update from the Texas Department of Transportation.
  • Timeline: first quarter 2025-fourth quarter 2025
  • Cost: $1.3 million
  • Funding sources: federal, state funds
2. Hwy. 75 improvements


Project: Hwy. 75 will undergo improvements such as underseal base repair and planing between South Loop 336 North and Gladstell Street.

Update: This project was set to begin in the first quarter of 2025, according to an April 17 media update from TxDOT.
  • Timeline: first quarter 2025-fourth quarter 2025
  • Cost: $3.3 million
  • Funding source: state funds
Ongoing projects

3. I-45 direct connector

Project: A direct connector will be installed along I-45 between Shenendoah Park Drive and Hwy. 242, connecting northbound I-45 with eastbound Hwy. 242.


Update: This project was 1% complete as of an April 17 media update from TxDOT.
  • Timeline: second quarter 2025-second quarter 2028
  • Cost: $42.63 million
  • Funding sources: federal, state funds
4. South Loop 336 lighting

Project: Along South Loop 336 between I-45 and Sgt. Ed Holcomb Boulevard, safety lights, conduits, conductors and other electrical services are underway.

Update: According to an April 17 media update from TxDOT, this project is 96% completed.
  • Timeline: December 2024-third quarter 2025
  • Cost: $518,164
  • Funding source: state funds
5. Hwy. 105 widening

Project: Between 10th Street and South Loop 336, Hwy. 105 is being widened from two to four lanes.


Update: According to an April 17 TxDOT media update, this project is 44% complete.
  • Timeline: March 2023-second quarter 2028
  • Cost: $52.7 million
  • Funding source: state funds
6. South Loop 336 widening

Project: South Loop 336 is being widened from two to four lanes with a continuous left-turn lane, between I-45 and Ladera Creek Trace.

Update: This project is 12% completed, according to an April media update from TxDOT.
  • Timeline: November 2024-third quarter 2027
  • Cost: $20.6 million
  • Funding source: state funds
7. Hwy. 105 reconstruction

Project: Hwy. 105 is being reconstructed and widened from two to four lanes between South Loop 336 and FM 1484.


Update: According to an April 17 media update from TxDOT, this project is 98% completed.
  • Timeline: February 2023-third quarter 2025
  • Cost: $90.81 million
  • Funding source: state funds
8. I-45 LED installation

Project: High mast LED poles are being installed along the mainlanes of I-45 between FM 830 and Shepard Hill Road.

Update: This project is 30% completed, according to an April 17 media update.
  • Timeline: February 2025-first quarter 2026
  • Cost: $1.45 million
  • Funding source: state funds
9. Hwy. 242 widening

Project: TxDOT is using an existing right of way on Hwy. 242 between FM 1488 and I-45 to widen lanes and restripe the intersections.


Update: According to an April 17 media update from TxDOT, the project is 54% complete.
  • Timeline: October 2023-fourth quarter 2026
  • Cost: $29.11 million
  • Funding sources: federal, state funds