I-94 Interchange (Exit 161) Reconstruction

Estimated Project Cost: <div class="field field--name-field-project-cost field--type-string field--label-hidden field__item">$40-$50 Million
Estimated Completion: <div class="field field--name-field-estimated-completion-date field--type-string field--label-hidden field__item">Summer 2026

About The Project

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

I-94 Impacts	I-94 is reduced to one lane in both directions as bridge work continues. Nightly lane closures are in place from 10 p.m. to 6 a.m. with traffic rerouted across Centennial Road/Bismarck Expressway and back onto the interstate via the off and on ramps. Follow posted detour signs.
Centennial Road/Bismarck Expressway Impacts	Traffic is reduced to one lane in both directions as crews replace medians and install temporary traffic signals at Miriam Avenue and Trenton Drive to maintain traffic flow during construction. Pedestrian access along the corridor will remain available, though routes may change.