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Mobile River Bridge and Bayway Project advances toward construction

Artist's rendering of the proposed Mobile River Bridge and Bayway Project featuring a new six-lane cable-stayed bridge over the Mobile River connecting Interstate 10 between Mobile and Baldwin counties.
Artist's rendering of the proposed Mobile River Bridge and Bayway Project, which will add Interstate 10 capacity across the Mobile River and Mobile Bay while improving regional mobility and freight movement.
Jul 09, 2026

After decades of planning, the Mobile River Bridge and Bayway Project is moving forward with strong support from federal, state and local partners. The Alabama Department of Transportation (ALDOT), the Mobile Metropolitan Planning Organization (MPO) and the Eastern Shore Metropolitan Planning Organization announced today a revised project approach that positions construction to begin before the end of 2026, pending anticipated approval of a federal Transportation Infrastructure Finance and Innovation Act (TIFIA) loan.

The revised approach preserves the project’s primary goal of increasing I-10 capacity across Mobile Bay while reducing overall costs through a phased construction strategy.

“This project is essential to Alabama’s future and represents one of the most important infrastructure investments in our state’s history,” Gov. Kay Ivey said. “This transformative project will strengthen our economy, improve safety and ensure we are better prepared in times of emergency.”

A phased approach to move the project forward

Rather than constructing every component simultaneously, ALDOT has developed a two-phase plan designed to keep the project financially viable. This will also deliver meaningful traffic improvements sooner.

Phase One includes:

  • Construction of a new six-lane cable-stayed bridge.
  • Restriping the existing Bayway to provide six lanes of traffic across Mobile Bay.
  • Improvements to major interchanges, intersections and traffic flow throughout the corridor in Mobile and Baldwin counties.

Phase Two includes:

  • Construction of a new Bayway structure as additional funding becomes available, with future toll revenue helping finance the project.

Why the project changed

Since the project was first developed, construction costs have increased significantly because of several factors, including:

  • Nationwide construction inflation
  • Higher labor and material costs
  • Additional engineering and geotechnical challenges on the Bayway
  • Federal regulatory requirements

Updated engineering analysis determined that constructing an entirely new Bayway at the same time as the bridge would push project costs beyond a financially sustainable level. The revised phased approach allows construction to move forward while maintaining the project’s long-term vision. Phase One is currently estimated to cost approximately $3.2 billion.

Federal, state and local partnership

Project leaders credited months of coordination among ALDOT, the White House, the U.S. Department of Transportation, the Federal Highway Administration, Governor Ivey, Alabama’s congressional delegation and local officials for creating a viable path forward.

Recent federal actions increased flexibility in the use of funding, addressed regulatory requirements and supported financing mechanisms needed to advance construction.

Tolling information

No tolls will be collected until the new Mobile River Bridge opens, which is currently projected around 2031. Existing toll-free routes, including the Wallace Tunnel, Bankhead Tunnel, Causeway and Africatown Bridge, will remain free.

The proposed toll options for standard vehicles include:

  • $60 unlimited monthly commuter pass (about $1.36 per trip for daily commuters)
  • $3 per trip with an ALGO Pass
  • $7.70 per trip using a compatible interoperable transponder
  • Pay-by-plate billing for drivers without a transponder

ALGO transponders are expected to be available free of charge during the initial rollout.

A historic investment in Alabama’s transportation network

The Mobile River Bridge and Bayway Project is expected to be the largest transportation infrastructure project in Alabama history. Once complete, it will improve traffic flow along I-10, enhance freight movement through the Port of Mobile, strengthen regional connectivity and improve hurricane evacuation capabilities along one of the nation’s most important interstate corridors.

Mobile River Bridge and Bayway Fact Sheet July 2026.