Tutor Perini Corporation, a leading civil, building and specialty construction company, announced today that its subsidiary, Lunda Construction, has been awarded the Roberts Street Railroad Bridge Replacement Project over the Mississippi River. Furthermore, the project is situated in St. Paul, Minnesota. Moreover, this project is one of the many bridge overhaul projects that are taking place in the USA, with another one in Chicago already started.
Additionally, the project will replace a 113-year-old vertical lift 189-foot-long truss bridge with a new 215-foot-long rolling bascule truss span bridge. The scope of work includes replacement of the existing six steel approach bridges, rehabilitation of the existing concrete piers, and removal of the timber protection walls along both sides of the navigation channel. Also, it includes the installation of new steel pile protection wall along a new support pier, and a 38-foot-diameter sand-filled crash bumper for the new protection wall. Moreover, it will involve the construction of a concrete support platform for the new operations building.
However, the existing bridge structure will remain in service for both rail and marine traffic while construction of the new bridge is completed.
Morover, work is expected to commence in July 2026 with substantial completion anticipated in December 2029. Lastly, the undisclosed contract value will be reflected in the Company’s backlog for the second quarter of 2026.
Project Factsheet
Location: St. Paul, Ramsey County, Minnesota
Waterway: Mississippi River
Anticipated Completion: December 2029
Contractor: Lunda Construction (Subsidiary of Tutor Perini Corporation)
Project Value: $61.9 million
Specifications Comparison
- Existing Bridge Type: Vertical lift truss bridge
- New Bridge Type: Rolling bascule truss span bridge
- Existing Main Span Length: 189 feet
- New Main Span Length: 215 feet
- Existing Bridge Age: 113 years old
Scope of Work
- Approach Infrastructure: Full replacement of six existing steel approach bridges.
- Substructure Rehabilitation: Extensive repairs and rehabilitation of the existing concrete piers.
- Marine Protection Systems: Removal of the old timber protection walls along both sides of the river navigation channel.
- Steel Pile Walls: Installation of a new, robust steel pile protection wall alongside a new support pier.
- Crash Bumper: Installation of a heavy-duty 38-foot-diameter sand-filled crash bumper.
- Operations Facility: Construction of a dedicated concrete support platform to hold a new, modernized bridge operations building.
Traffic and Environmental Impact
- Continuous Operations: The existing bridge will remain completely operational for both rail and marine traffic throughout the entire construction window.
- Minimal Disruption: The replacement has been staged carefully to ensure that freight trains and river vessels experience minimal disruption while the new rolling bascule span is constructed and integrated.
Project Team
Primary Contractor: Lunda Construction Company (Subsidiary of Tutor Perini Corporation). The company will serve as the main heavy civil and marine engineering contractor responsible for the execution and bridge fabrication. Additionally, it will be responsible for demolition and site staging.
Parent Corporate Oversight: Tutor Perini Corporation (NYSE: TPC). The company will provide institutional backing and comprehensive project management. Moreover, it will provide frameworks and executive oversight.
Project Owner / Client: Class 1 Railroad Operator. While the specific private freight line operating this stretch of the St. Paul rail corridor handles the asset, the project is executed under a long-term collaboration with regional transit authorities to maintain zero operational downtime for municipal marine. Also, this would maintain the commercial rail traffic.
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