Alternative Delivery projects
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Alternative Delivery projects


TxDOT has two forms of project procurement available.

These contracting methods are awarded based on a best-value approach (price, qualifications of firm and project approach) and combine various components of a project’s implementation into one contract. Design-Build (DB) Contracts and Comprehensive Development Agreements (CDAs) allow for the expedited project delivery through the concurrent design and construction of a project.

Comprehensive Development Agreements

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. CDAs can be Concessions or DBs. TxDOT has five such projects in operation or under construction but the broad authority to enter into additional CDAs expired in 2017.


DB 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.



TxDOT's 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. For Design-Build projects, the firm that provides the best-value bid (based on evaluation of cost, qualification of firms and project approach) is selected to design and construct the project.

Future projects

TxDOT continues to analyze projects to determine which would be most suitable for the design-build delivery method. A quarterly report illustrates TxDOT’s planned procurements for the next five to ten years.

Projects in pre-procurement

Projects in procurement

Executed projects

(CDAs & DBs)
Date signed Project Developer/DB contractor Project type
02/24/22 Southeast Connector South-Point Constructors Design-Build
09/17/21 I-35E Phase 2 Lone Star Constructors Design-Build
07/22/21 I-35 Northeast Expansion Central Alamo NEX Construction, LLC Design-Build
08/10/20 Oak Hill Parkway Colorado River Constructors Design-Build
08/22/19 I-2/I-69C Interchanges Dragados-Pulice J.V. Design-Build
08/22/19 I-635 LBJ East Pegasus Link Constructors Design-Build
10/03/17 SH 249 Extension Williams Brothers Construction Co. Design-Build
06/30/17 SH 99 Grand Parkway Segments H, I-1 and I-2 Grand Parkway Infrastructure, LLC Design-Build
06/30/17 Southern Gateway Pegasus Link Constructors Design-Build
03/04/16 SH 288 Toll Lanes Project in Harris County | (Project Sheet) Blueridge Transportation Group CDA Concession
09/28/15 US 181 Harbor Bridge Replacement | (Project Sheet) Flatiron-Dragados USA, J.V. CDA Design-Build
05/15/15 SH 360 Project | (Project Sheet) Lane - Abrams Joint Venture Design-Build
11/20/14 Midtown Express - SH 183 Managed Lanes | (Project Sheet) SouthGate Mobility Partners, LLC CDA Design-Build
08/29/14 SH 71 Express Toll Lanes | (Project Sheet) McCarthy Building Companies, Inc. Design-Build
08/22/14 Loop 375 Border Highway West Extension | (Project Sheet) Abrams – Kiewit Joint Venture CDA Design-Build
02/10/14 Energy Sector Roadway Repair Project | (Project Sheet) ESR2P Builders, LLC Design-Build
12/05/13 Loop 1604 Western Extension Project | (Project Sheet) Williams Brothers Construction Company, Inc. Design-Build
07/30/13 US 77 Upgrade from Kingsville to Driscoll | (Project Sheet) 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 Segments F-1, F-2, and G 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 Express 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