$1.8B Blatnik Bridge Project Breaks Ground, Opens Multiyear Bid Pipeline
State and federal officials broke ground Aug. 31 on the $1.8 billion John A. Blatnik Bridge replacement between Duluth, Minn., and Superior, Wis., ENR reports.
The design-build project will replace the existing span, a critical freight and commuter link carrying Interstate 535 over St. Louis Bay, with an 8,300-foot tied-arch bridge. Ames-Kraemer Joint Venture II is the design-build contractor, and Virginia-based Parsons Corp. is providing design and construction oversight after previously handling preliminary engineering for the replacement. Construction is set to start in early 2027 and finish in 2031.
Market Impact
The current bridge, which opened in 1961, carries more than 33,000 vehicles daily and was originally designed for 154,000-pound loads. As of 2019, it can only carry 80,000 pounds, according to the Wisconsin DOT. Minnesota Sen. Amy Klobuchar noted at the groundbreaking that nearly $4 billion worth of goods cross the bridge annually, underscoring its role as a freight corridor tying the two states together.
Funding is split between the two states and the federal government: each state has committed $400 million, with $1 billion coming from federal sources, according to Wisconsin officials. Klobuchar said the project is expected to require roughly 1.5 to 1.75 million labor hours over the construction period. Minnesota Gov. Tim Walz emphasized worker safety at the event, calling the work “dangerous” and “hard” and pledging that safety commitments would remain a top priority throughout construction.
What It Means for Subcontractors
- Heavy-civil, structural steel, and marine construction trades should expect subcontract packages tied to the tied-arch superstructure and bay-crossing foundation work to open as construction mobilizes starting early 2027.
- With 1.5 to 1.75 million labor hours projected over the four-year build, ironworkers, crane operators, and skilled trades in the Duluth-Superior region should anticipate sustained multiyear demand rather than a short-term surge.
- Firms working under Ames-Kraemer Joint Venture II or Parsons Corp. on oversight and design should monitor Minnesota DOT and Wisconsin DOT project pages for subcontract bid packages as the design-build process advances toward the 2027 start date.
- Traffic management and safety-compliance contractors should prepare for extended detour and worksite safety protocols, given Gov. Tim Walz’s public emphasis on worker safety during the multiyear closure period affecting a corridor carrying over 33,000 vehicles daily.
- Companies interested in scope beyond the primary structure, such as approach roadway or utility relocation work, should track Minnesota DOT announcements through 2027 as the $1.8 billion project scope gets broken into contract packages.
