I-45 Central Walker County Project (Segment 2A & 2B)

The purpose of this project is to enhance freight mobility and address congestion along the I-45 corridor. There are two proposed segments within the Central Walker County Project that were studied by TxDOT. Segment 2A is a proposed 4.4 mile long project in the city limits of Huntsville from 0.3 miles north of SH 19 to 0.9 miles north of SH 30. Segment 2B is a proposed 4.7 mile long project in the city limits of Huntsville from SH 30 to 0.7 miles south of FM 1696.

Background

The existing I-45 facility consists of a four-lane divided controlled access freeway. There are two travel lanes in each direction, bounded by 10 foot outside and six foot inside shoulders. South of FM 1791, two-lane one-way frontage roads are positioned outside of the main lanes. North of FM 1791, two-lane two-way frontage roads are positioned outside of the main lanes.
The freeway within the project limits was constructed in the early 1960s.
Passenger and truck traffic has greatly increased during the last 60 years.
I-45 serves as the primary hurricane and disaster evacuation route for metro Houston and Galveston.

Segment 2A

Segment 2A is a proposed 4.4 mile long project in the city limits of Huntsville from 0.3 miles north of SH 19 to 0.9 miles north of SH 30. It would widen I-45 from four to six lanes and would include reconstruction and realignment of the main lanes and ramps; improving drainage structures and bridges; and improvements to frontage roads, crossroads adjacent to new ramps, and interchanges. The project also includes adding collector-distributor roads, which is a road that parallels and connects the main travel lanes and frontage roads.

The proposed Segment 2A project would require additional right of way of approximately 11.5 acres and would displace four commercial structures. This project began in October 2021 with a project cost of $210 million.

Segment 2B North and 2B South

Segment 2B North
The IH-45 Segment 2B North project is a proposed 2.3-mile-long improvement within the Huntsville city limits, with a proposed right of way width of 400 feet. The project would widen IH-45 from four to six lanes and include the reconstruction and realignment of the freeway main lanes and ramps. Improvements would also include construction of a new interchange north of the Texas Department of Criminal Justice Headquarters and upgrades to existing drainage structures and stormwater conveyance systems.

New frontage roads, ramps, and the interchange would be constructed as part of the project; however, these facilities would not open to traffic until completion of the IH-45 Segment 2B South project.

The project is currently anticipated to be let in Summer 2027, with construction expected to begin in Fall 2027.

Segment 2B South
The IH-45 Segment 2B South project is a proposed 4.7-mile-long improvement within the Huntsville city limits, with a proposed right of way width of 400 feet. The project would widen IH-45 from four to six lanes and include the reconstruction and realignment of the freeway main lanes and ramps.

Improvements would also include construction of a new interchange connecting westbound SH 75 near San Jacinto Street (west of IH-45) and Moffett Springs Road (east of IH-45). Additional improvements would include upgrades to drainage structures, bridges, frontage roads, and cross streets adjacent to the proposed ramps and interchanges.

To improve safety and reduce vehicle turning conflicts, a raised median would be constructed along SH 75 from Brookview Drive to FM 2821. The project would also include bicycle and pedestrian accommodations and improve traffic operations along approximately 1.4 miles of SH 75 west of IH-45.

The project is currently anticipated to be let in Winter 2029, with construction expected to begin in Spring 2029.

Get involved

Downloads

Segment 2A

Segment 2B North and 2B South

Email TxDOT Bryan District

call

979-778-9231

2591 N. Earl Rudder Freeway
Bryan, TX 77803-5190