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

Upcoming projects

1. 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: According to a May 1 media update from the Texas Department of Transportation, this project was set to begin in the first quarter of 2025.
  • Timeline: first quarter 2025-fourth quarter 2025
  • Cost: $3.3 million
  • Funding source: state funds
2. 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 is set to begin in the second quarter of 2025, according to a May 1 media update from TxDOT.
  • Timeline: second quarter 2025-fourth quarter 2025
  • Cost: $1.3 million
  • Funding sources: federal, state funds
Ongoing projects

3. Hwy. 105 widening

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


Update: According to a May 1 media update from TxDOT, this project is 41% completed.
  • Timeline: March 2023-second quarter 2028
  • Cost: $52.7 million
  • Funding source: state funds
4. South Loop 336 widening

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

Update: This project is 25% completed, according to a May 1 media update from TxDOT.
  • Timeline: November 2024-third quarter 2027
  • Cost: $20.6 million
  • Funding source: state funds
5. I-45 LED installation

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


Update: According to a May 1 media update from TxDOT, this project is 1% completed.
  • Timeline: February 2025-first quarter 2026
  • Cost: $1.45 million
  • Funding source: state funds