I-94 Interchange (Exit 161) Reconstruction

NDDOT broke ground on the I-94 Interchange (Exit 161) Reconstruction project in spring of 2024, with construction expected to run through the summer of 2026. The interchange reconstruction project is designed to support growth in this area of Bismarck and relieve what has become an increasingly congested corridor along Centennial Road/Bismarck Expressway and I-94. NDDOT has worked closely with the City of Bismarck, local business owners, and the general public to find a traffic solution that would benefit the entire community. The modified single-point urban interchange (SPUI) selected for this project will efficiently move large volumes of traffic by converging traffic under one set of traffic signals. Use this page to stay updated on project developments, traffic impacts, and important safety information related to this project.

Project Updates

• Work on the interchange's east side ramps is underway.
• Concrete work continues on Miriam Avenue just east of Centennial Road/Bismarck Expressway.
• Traffic is now using the new bridge. Old bridge demolition set for late September.

Traffic Impacts

• Centennial Road/Bismarck Expressway
  • Reduced to one lane in each direction across the new bridge from Trenton Drive to Miriam Avenue.
  • Pedestrians can access the new bridge sidewalks. Temporary barriers are in place near Miriam Avenue to safely guide foot traffic from the existing walkways.
• Miriam Ave.
  • A portion of Miriam Avenue is closed east of Centennial Road/Bismarck Expressway. Detour provided via Revere and Hancock Drive.
• Westbound I-94
  • All Centennial Road/Bismarck Expressway traffic enter using new NW on-ramp. Exit using the temporary NE off-ramp.
  • Reduced to one lane.
• Eastbound I-94
  • Exit using new SW off-ramp (loop off-ramp is now closed for construction). Enter using existing SE on-ramp.
  • Reduced to one lane.