Texas, US
-
9.5
miles
-
$1.5B
construction value
-
2022-2027
project date
Scope of Work
The Ferrovial team, Alamo NEX Construction, was selected by the Texas Department of Transportation (TxDOT) as the contractor for the I-35 NEX Central project located in San Antonio. The project consists of the design, construction, and maintenance of 22 miles of improvements along I-35. Once complete, the project will improve safety and mobility on one of the busiest highways in North America.
Project Summary
The project consists of the design, construction, and maintenance of approximately 22 miles of non-tolled improvements along I-35, including a portion of I-410 North and Loop 1604. The project scope includes 22 miles of elevated structures, eight direct connectors in two major interchanges, and the reconstruction of more than 5.5 miles of mainlanes and frontage roads. The project also includes other improvements, such as at-grade widenings of the existing roadway, full project overlay, drainage infrastructure improvements, and replacing or modifying existing structures, including retaining walls and cross streets.
Unique Project Aspects
The I-35 NEX Central Project is situated in a densely populated urban area characterized by high traffic volumes and a very limited right-of-way (ROW). The project faces unique challenges, including the construction of elevated lanes in this confined space, the relocation of numerous existing utilities, and the need to maintain TxDOT’s roadway intelligent transportation systems (ITS) while minimizing disruptions for the traveling public on an interstate highway. The delivery of over 800 bridge spans, which includes more than 4,700 concrete beams, 1,300 columns, and six million square feet of bridge decks, presents a significant challenge, particularly as it is located over one of the busiest highways in North America.
Community Benefits
It is estimated that when the Central project is complete, travel time on the existing mainlanes between the Bexar County line and Loop 410 North will be cut in half from about 20 minutes to less than 10 minutes.
Key Figures
I-35 Northeast Expansion (NEX) Central Project-
Client
Texas Department of Transportation (TxDOT)
-
Location
San Antonio, TX
-
Completion date
Late 2027
-
Project size
Approximately 22 miles
-
Contract value
$1.5 Billion
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