Nd Highway over I-94/ND 31 Interchange
FairMorton County, North Dakota · Junction of Nd 31 & I-94 · Structure no. 0094127662
- Built
- 1964
- 61 years old, rebuilt 1987
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 221 ft
- 4 main spans
- Daily traffic
- 1,900
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Nd Highway over I-94/ND 31 Interchange is a steel continuous stringer/multi-beam or girder carrying Nd Highway over I-94/ND 31 Interchange in Morton County, North Dakota. It was built in 1964 and reconstructed in 1987, so it is 61 years old, older than the North Dakota average of 48.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 1,900 vehicles a day, roughly 8% of them trucks, projected to reach 2,280 by 2039. The structure is 221 ft (67.4 m) long and 43 ft wide. If it were closed, the detour would be 65.2 mi (105 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nd Highway over I-94/ND 31 Interchange built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1987.
What condition is Nd Highway over I-94/ND 31 Interchange in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.
How much traffic does Nd Highway over I-94/ND 31 Interchange carry?
About 1,900 vehicles per day (2019 count), of which roughly 8% are trucks.
How long is Nd Highway over I-94/ND 31 Interchange?
The structure is 221 ft (67.4 m) long with a longest span of 65 ft (19.8 m) and a deck 43 ft wide.
Who owns Nd Highway over I-94/ND 31 Interchange?
It is owned by the State Highway Agency.