Pierre-Fort Pierre Bridge Project

Photo of road construction warning light.

The westbound outside lane over the Pierre-Fort Pierre Bridge is currently closed from the start of the bridge in Pierre through the U.S. Highway 14/83 intersection in Fort Pierre as crews work to reconstruct the intersection in preparation for the new bridge.  

Project Update

May 25, 2023: Crews have continued working on the Pierre-side abutment mechanically stabilizing earth (MSE) lower retaining wall. After setting the wall panels, the crew augmented the panels’ stability by attaching reinforcing metal streps to the back. The straps are then laid across the ground and covered with additional soil and rocks, which not only strengthen the structure, but also allow for easy compaction and quick drainage.

The crews have also been hard at work with the installation of girders as well. All six girder lines have been installed at bent seven and five have been installed through bent six. The crews are gearing up to install the final girder line at bent six and from there will continue driving progress forward to bent five.

Public Safety Information

A historic bridge project is in progress in the Pierre-Fort Pierre, South Dakota, area. 

While the John C. Waldron Memorial Bridge still stands, it’s critical that the structure be replaced. The bridge was opened in 1962 and is showing signs of deterioration, which can cause a variety of issues. The current structure carries U.S. Highways 14 and 83, along with S.D. Highway 34. The structure is a crossing point over the Missouri River between Fort Pierre and Pierre.

In 2016, the South Dakota Department of Transportation (SDDOT) performed a bridge replacement study, with intentions of gathering more information to justify a structure replacement. After years of studying and planning, the SDDOT decided to move forward with building a completely new bridge. Construction of the new bridge began in November of 2020.

The new structure is being constructed just 10 feet north of the existing John C. Waldron Memorial Bridge. The new bridge will have updated features for functionality, user enjoyment, and aesthetics. The new bridge is anticipated to be open for traffic in the summer of 2024. Total project completion is anticipated for summer 2025.

Phase One – Underwater substructure construction and beginning roadway approach work.

Phase Two – Westbound lane construction and signal work.

Phase Three – Eastbound lane construction.

Phase Four – Demolition of old bridge and construction of Pierre and Fort Pierre plazas.