I-635 LBJ Express
Dallas- Fort Worth, TX, USA | Texas DOT
2014 | DBFOM | USD $1,100 million
Project Description
The LBJ Express (formerly the IH 635 Managed Lanes Project) relieved congestion north of Dallas on 13 miles of I-635 (LBJ Freeway) from just west of I-35E (near Luna Road) to just east of US 75 (near Greenville Ave.), and south on I-35E from I-635 to Loop 12. The project involved the reconstruction of the main lanes and frontage roads along I-635, the addition of six managed lanes (mostly subsurface) along I-635 from I-35E to US 75 and four managed lanes west and east of that stretch, and the addition of six elevated managed lanes along I-35E from Loop 12 to the I-35E/I-635 interchange.
Services
Design Management
Design Leadership and Coordination
Design Due Diligence and Compliance
Preparation of Alternative Technical Concepts (ATCs)
Role & Responsibilities
Mr. Mestre Rodriguez was appointed as the Bid Design Engineer supervising all aspects of the bid preliminary design and reporting to Ferrovial’s Bid Design Manager for the project. Mr. Mestre developed partial designs for different ATCs that were developed further in detail by the Lead Designers.
The most relevant ATC presented included a significant cut and cantilever design innovation to eliminate the need for a double tunnel structure. This resulted in less than a third of the cost of the original tunnel option, reduced traffic disruptions and accelerated construction completion. This design optimization resulted in the only bid price within the available TxDOT budget - $1 billion USD less than the closest competitor.
Project Information
Location: Fort Worth, Texas, USA
Owner: Texas Department of Transportation (TxDOT)
Delivery Method: DBFOM (Revenue-Risk P3)
Construction Cost: 2.6 billion USD
Award - Completion: June 2010 - September 2015
Consortium: LBJ Infrastructure Group
Developer: Cintra, Meridiam, Macquarie
DBJV: Ferrovial Construction, Webber
Lead Designers: Bridge farmer, Jansen & Spaans