Pierre-Fort Pierre Bridge Project
>>> There is currently one traffic alert applied to the Pierre-Fort Pierre Bridge. Click here to see the traffic alert.
Project Update
April 25, 2024:
With the change in season, crews are focused on remaining concrete formwork, the eastbound barrier rail and curb, and approach grading and paving on the Pierre side. Additionally, concrete removal and earthwork are underway on the Ft. Pierre side of the new structure.
To accommodate this work and the remaining (and quickly approaching) deck pours, two-way traffic in the existing eastbound lanes is now in effect.
Pictured below is the updated construction timeline for 2024. With the two-way traffic in the existing bridge’s eastbound lanes, a 10-foot width restriction necessitating a detour around the Oahe Dam is also now in effect. As the project continues into the summer, expect to see changing traffic patterns as the crew shifts to working on the new bridge’s eastbound lanes.
We remind all motorists, boaters, and pedestrians to stay vigilant throughout the entire construction zone, especially as we approach the warmer seasons!
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 (current) – Westbound lane construction and new bridge construction.
Phase Three – Eastbound lane construction.
Phase Four – Demolition of old bridge and construction of Pierre and Fort Pierre plazas.