FM 3351 from I-10 to SH 46
Skip to main content

FM 3351 from I-10 to SH 46

The Texas Department of Transportation is proposing the expansion of FM 3351 between I-10 and SH 46, in Fair Oaks Ranch and San Antonio, which covers portions of Kendall, Bexar, and Comal counties.

Expansion of FM 3351 within the project limits is listed in the Alamo Area Metropolitan Planning Organization’s (MPO) Metropolitan Transportation Plan (MTP) “Mobility 2040” as a critical piece in the transportation network. Capacity improvements would help relieve congestion and access issues along the project limits.

The FM 3351 Project Team is currently identifying potential concepts for FM 3351. The proposed number of travel lanes will be determined as the project is developed. The proposed FM 3351 project will also involve the completion of various environmental studies and consideration of bicycle and pedestrian accommodations. The proposed typical section will ultimately be based on traffic, safety, and local access needs, while avoiding and minimizing environmental impacts.

Anticipated project schedule

Development of project engineering schematics and environmental studies began in April 2018 and is anticipated to take approximately 24 months.

Public involvement

Your input is a key part of project development. Public involvement opportunities will be provided throughout this process.

Project updates

For project updates, please email your name and contact information to Please include “Updates on FM 3351” in the subject line. You may also opt-in to receive email updates here: Click Here to Opt-in.