US Highway 81 over Turtle River
FairGrand Forks County, North Dakota · 1 North of Manvel · Structure no. 0081164184
- Built
- 2002
- 23 years old
- Condition
- Fair
- inspected May 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 117 ft
- 3 main spans
- Daily traffic
- 2,125
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 81 over Turtle River is a prestressed concrete continuous box beam or girders - single or spread carrying US Highway 81 over Turtle River in Grand Forks County, North Dakota. It was built in 2002, so it is 23 years old, younger 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 5 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 2,125 vehicles a day, roughly 16% of them trucks, projected to reach 2,765 by 2039. The structure is 117 ft (35.7 m) long and 43 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 8 Very Good | No problems noted. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US Highway 81 over Turtle River built?
It was built in 2002, making it 23 years old in 2025.
What condition is US Highway 81 over Turtle River 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 May 2024.
How much traffic does US Highway 81 over Turtle River carry?
About 2,125 vehicles per day (2019 count), of which roughly 16% are trucks.
How long is US Highway 81 over Turtle River?
The structure is 117 ft (35.7 m) long with a longest span of 38 ft (11.6 m) and a deck 43 ft wide.
Who owns US Highway 81 over Turtle River?
It is owned by the State Highway Agency.