North Dakota's highways run long and straight, and the towns can be a lot of miles apart. Out there, the mile marker isn't a nice-to-have — it's often the only way to say where you are. Here's how the mileposts work across the state, and how to see yours plus live NDDOT alerts in real time.
How North Dakota numbers its highways
North Dakota's mileposts count up from the west and south edges of the state. On I-94 the numbers start at 0 at the Montana line and climb east; on I-29 they start at the South Dakota line and rise toward Canada. US and state routes follow the same pattern. Mile marker data for every North Dakota highway is bundled into MileCheck and works offline — which matters on the stretches where cell coverage thins out.
The corridors people actually drive
- I-94 crosses roughly 350 miles from the Montana line through Dickinson and Bismarck to Fargo.
- I-29 runs the Red River Valley north–south through Fargo and Grand Forks to the Canadian border.
- US-2 crosses the north of the state through Minot and Devils Lake; US-83 runs north–south through Bismarck and Minot; US-85 serves the oil-patch country in the west.
Where mile markers matter most: the empty stretches
Between towns on I-94 or US-2 there can be very little to point at — no landmarks, no exits for miles, just prairie. When you call for a tow or report a crash, the milepost is the reference everyone uses, from dispatch to the plow driver. Knowing your exact mile marker turns "somewhere west of Bismarck" into a location someone can actually drive to.
Ground blizzards and gated interstates
North Dakota is one of the few states that physically closes its interstates. When a ground blizzard — high wind driving existing snow across the flats — takes visibility to zero, NDDOT drops gates across the on-ramps and the interstate shuts by mile range. Driving around a gate is illegal and genuinely dangerous. Those closures are announced by milepost, so knowing your mileposts, and seeing the alert before you're at the gate, can save you a night parked in a Bismarck truck stop instead of a ditch.
Live NDDOT alerts, in one place
MileCheck pulls live road alerts straight from NDDOT: closures, crashes, construction, and winter conditions, tied to the mile marker and direction so you can see what's ahead of you on your route before you commit to the next hundred miles of prairie.
Everyday and emergency
Whether you're watching a winter system roll in over I-94, reporting a breakdown between exits, or telling a friend which approach you're on, the mile marker is the location North Dakota's roads run on. MileCheck shows yours in real time, down to a tenth of a mile, even where the cell signal drops — and it works on CarPlay and Android Auto for the long drives.
Keep reading
Nearby state guides: Minnesota · Montana · South Dakota
Essentials: What to tell 911 on the highway · How to find your mile marker · Browse the live mile marker map · All 50 states