Bridge, utilities work to impact Bismarck-Mandan motorists
Commuters Brace for Construction Delays in Bismarck-Mandan
Orange cones lined up along Main Avenue and the steady blink of arrow boards near Airport Road greeted early drivers this weekend. Starting Saturday, Aug. 24, lane reductions began at Main Avenue and Airport Road for utility upgrades expected to last about two months, according to reporting by The Bismarck Tribune that cites city and utility notices.
More changes arrive Monday, Aug. 26, on the Interstate 94 bridge over the Missouri River, where traffic will shift to accommodate rehabilitation work, according to the Tribune’s summary of North Dakota Department of Transportation updates. State officials say access to nearby businesses and riverfront destinations will remain open during construction.
Navigating the Gridlock: What to Know
Here’s what’s confirmed as projects get underway, per The Bismarck Tribune and public notices from the North Dakota Department of Transportation (NDDOT):
- Main Avenue at Airport Road: Lane reductions started Aug. 24 for utility work. The upgrades are expected to span roughly two months; exact durations can vary by weather, so check ahead.
- I-94 Missouri River bridge (Grant Marsh Bridge area): Traffic shifts begin Aug. 26 to stage bridge rehabilitation. Ramps and business access points are planned to remain open during the work, according to NDDOT notices summarized by the Tribune.
If you’re heading east–west across town, consider planning around rush hours or using parallel arterials such as Century Avenue or Bismarck Expressway where it fits your trip. For crossing the river, Memorial Bridge via Bismarck Expressway can be an alternative if I-94 is backed up—just leave extra time and watch for changing lane patterns. Officials continue to advise slower speeds in work zones and patience around flaggers and crews, per NDDOT guidance.
Why This Matters to You
Daily routines will feel tighter while these projects are active. Expect slower travel on Main Avenue near Airport Road and potential bottlenecks approaching the I-94 river crossing during the morning and late-afternoon commutes, according to the Tribune’s coverage of agency updates.
For nearby businesses and neighborhoods, the work zones may shuffle how you get in and out of lots. NDDOT’s notices, as reported by the Tribune, emphasize maintaining access to businesses during the bridge staging; still, entrances may be shifted or narrowed at times. If you have appointments on either side of the river—or a kid to pick up across town—building in a 10–15 minute buffer can keep the day on track.
Local Voices and Expert Insights
Transportation officials frame the timing as necessary upkeep to extend the life of key infrastructure and reduce the need for longer closures later, according to The Bismarck Tribune summary of NDDOT statements. Utility work at Main and Airport Road is part of scheduled upgrades intended to modernize service and minimize future disruptions, the Tribune reports.
If your business sits along these corridors, the agencies say crews will maintain access during construction phases; exact driveway configurations may change, so posting a quick note on your website or social pages can help customers find the easiest entrance on a given day, based on NDDOT’s standard work-zone practices and the Tribune’s reporting.
What Should Commuters Do?
- Check live conditions before you leave: NDDOT’s traveler map posts lane closures and traffic shifts.
- Sign up for alerts: NDDOT and the City of Bismarck share construction updates on their websites and social channels.
- Give yourself cushion time and a plan B: If I-94 slows, Memorial Bridge (Bismarck Expressway) can be an alternate river crossing; within Bismarck, Century Avenue and Divide Avenue can help you skirt Main Avenue pinch points.
Useful links:
- North Dakota Department of Transportation traveler information — live maps and closures: https://travel.dot.nd.gov (check ahead if the map is under maintenance)
- NDDOT updates and news releases: https://www.dot.nd.gov/
- City of Bismarck announcements: https://www.bismarcknd.gov/
- City of Mandan updates: https://www.cityofmandan.com/
- Coverage and updates from The Bismarck Tribune: https://www.bismarcktribune.com
What to Watch
Weather can shift timelines; watch for NDDOT to update phase dates and lane setups week to week. The Main/Airport utility work is slated for roughly two months, and the I-94 bridge staging that begins Aug. 26 is expected to continue into the fall, according to the Tribune’s summary of agency notices. Expect additional lane changes as crews move between phases; check the traveler map before the morning and evening peaks.



