Rapid growth and a significant increase in vehicular traffic in the northern part of Bexar County, particularly along Blanco Road in San Antonio, necessitated the Alamo Regional Mobility Authority to initiate a major program to expand the corridor.
STV performed design services for the 11-mile expansion project that transformed the existing two-lane rural collector into a four-lane urban collector with medians, left-turn lanes and bike lanes.
The project’s second phase encompassed 3.2 miles of Blanco Road, which was designed to provide added capacity, operational improvements and necessary drainage improvements all within the existing 110-foot typical right-of-way.
Located within the Edwards Aquifer Recharge Zone, the project site presented several engineering challenges given its proximity to Joint Base San Antonio Camp Bullis Military Training Reservation, known as Camp Bullis, and a 24-inch high-pressure gas line. Tackling these challenges head on, STV’s team delivered this award-winning project within budget and on schedule. STV also provided a traffic control plan and coordinated closely with Camp Bullis to minimize disruption to the reservation.
80%
costs covered by Texas Department of Transportation
3,600
square miles served by the Edwards Aquifer
11
mile expansion
