The TxDOT Houston District is proposing to reconstruct and widen Interstate 45 (I-45) from Farm-to-Market Road (FM) 1764 to the Galveston Causeway in Galveston County, Texas. The proposed project will improve the existing roadway to enhance safety and mobility along the highway by reducing traffic congestion and improving the evacuation capability of the highway in instances of flooding and severe weather.

Current Conditions

Currently, I-45 is a six-lane, divided highway with frontage roads along both sides. The existing roadway consists of six main lanes, three in each direction, with 10-foot shoulders. There are four frontage lanes, two on each side of the highway, and drainage ditches running parallel to the roadway.

Proposed Improvements

• Reconstruction and widening of I-45 to include eight main lanes with two two-lane frontage roads
• Reconstruction of the I-45/SH 146/SH 6 Interchange at the Texas City Wye
• Construction of 6 detention ponds

The project originally required approximately 19.7 acres of additional right of way;  however, this has been updated to approximately 8.7 acres including 3 potential commercial displacements.

Next Steps

FM 1764 to FM 519 (Control Section Job Number: 0500-04-105)

• Anticipated Right of Way Acquisition – Summer 2018
• Plan Development and Detailed Design – To be finalized Summer 2019
• Anticipated Letting (Bid for Contract) – August 2019
• Anticipated Construction Start Date: Fall 2019

FM 519 to Texas City Wye (Control Section Job Number: 0500-04-104)

• Anticipated Right of Way Acquisition – Winter 2019
• Plan Development and Detailed Design – Currently in Progress
• Anticipated Letting (Bid for Contract) – September 2020
• Anticipated Construction Start Date: Winter 2020

From North of Texas City Wye to South of Texas City Wye (Control Section Job Number: 0500-04-103)

• Anticipated Right of Way Acquisition – Winter 2019
• Plan Development and Detailed Design – Currently in Progress
• Anticipated Letting (Bid for Contract) – August 2020
• Anticipated Construction Start Date: Fall 2020

From South of Texas City Wye to Galveston Causeway Bridge (Control Section Job Number: 0500-01-107)

• Anticipated Right of Way Acquisition – Winter 2019
• Plan Development and Detailed Design – Currently in Progress
• Anticipated Letting (Bid for Contract) – August 2020
• Anticipated Construction Start Date: Fall 2020

Downloads

• Public Hearing - Feb. 6, 2018
• Open House - June 13, 2017
• Project Location Map
• I-45 from FM 1764 to Delany Schematic
• I-45 from Delany to FM 519 Schematic
• I-45 from FM 519 to TCT Railroad Schematic
• I-45 from TCT Railroad to SH 6 Schematic
• I-45 Texas City Wye Schematic
• I-45 from Texas City Wye to the Causeway Schematic 
• I-45 Future Bayou Road Overpass Schematic

Contact

Reference the following project number: 0500-04-103, 0500-04-104, 0500-04-105, and 0500-01-107
TxDOT Houston District
(713) 802-5076
Email