The Texas Department of Transportation’s (TxDOT) traditional method of building transportation projects is known as Design-Bid-Build where the project is designed and then put up for bid by contractors. The firm that provides the lowest reasonable bid is selected to construct the project. In addition, TxDOT has had two other forms of project procurement available. These contracting methods are awarded based on best-value (price, qualifications of firm and project approach) and combine various components of a project’s implementation into one contract. Design-Build contracts and Comprehensive Development Agreements allow for the expedited project delivery through the concurrent design and construction of a project.

Comprehensive Development Agreements (CDAs)

CDAs allow for design, construction, utility relocation and maintenance to occur simultaneously under a single contract and may include financial participation from the private sector and a long-term lease or operation of the facility. TxDOT has five such projects in operation or under construction but the broad authority to enter into additional CDAs expired in 2017.


Design-Build contracts allow for design, construction, utility relocation and maintenance to occur simultaneously under a single contract but do not include financial participation from the private sector, a long-term lease or operation of the facility. Learn more about Design-build Contracts and Comprehensive Development Agreements.

Alternative Delivery Projects (CDAs, DBs) (Executed)

Date Signed Project Developer/DB Contractor Project Type
06/30/17 SH 99 H&I Grand Parkway Infrastructure, LLC Design-Build
06/30/17 Southern Gateway Pegasus Link Constructors Design-Build
10/03/17 SH 249 Williams Brothers Construction Co. Design-Build
03/04/16 SH 288 Toll Lanes Project in Harris County Blueridge Transportation Group CDA Concession
09/28/15 US 181 Harbor Bridge Replacement Flatiron-Dragados USA, J.V. CDA Design-Build
05/15/15 SH 360 Project Lane - Abrams Joint Venture Design-Build
11/20/14 SH 183 Managed Lanes SouthGate Mobility Partners, LLC CDA Design-Build
08/29/14 SH 71 Toll Lanes Project McCarthy Building Companies, Inc. Design-Build
08/22/14 Loop 375 Border Highway West Extension Abrams – Kiewit Joint Venture CDA Design-Build
02/10/14 Energy Sector Roadway Repair Project ESR2P Builders, LLC Design-Build
12/05/13 Loop 1604 Western Extension Project Williams Brothers Construction Company, Inc. Design-Build
07/30/13 US 77 Austin-Bay, J.V. Design-Build
05/17/13 I-35E Managed Lanes AGL Constructors CDA Design-Build
03/22/13 SH 99/Grand Parkway Zachry-Odebrecht CDA Design-Build
03/01/13 North Tarrant Express / I-35W NTE Mobility Partners Segments 3, LLC CDA Concession
02/20/13 Horseshoe Project
Pegasus Link Constructors Design-Build
10/06/09 DFW Connector NorthGate Constructors, J.V. CDA Design-Build
09/04/09 LBJ-635 Corridor LBJ Infrastructure Group CDA Concession
06/23/09 North Tarrant Express NTE Mobility Partners CDA Concession
03/22/07 SH 130 (Seg. 5 & 6) SH 130 Concession Company, LLC CDA Concession