County HWY over Big Coulee
PoorClosed to trafficBenson County, North Dakota · 3 South of US 2 · Structure no. 000000003129101
- Built
- 1955
- 70 years old
- Condition
- Poor
- inspected August 2020
- Type
- Slab
- Concrete Continuous
- Length
- 50 ft
- 2 main spans
- Daily traffic
- 200
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
County HWY over Big Coulee is a concrete continuous slab carrying County HWY over Big Coulee in Benson County, North Dakota. It was built in 1955, so it is 70 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.
It carries about 200 vehicles a day, roughly 5% of them trucks, projected to reach 250 by 2038. The structure is 50 ft (15.2 m) long and 33 ft wide. If it were closed, the detour would be 49.1 mi (79 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County HWY over Big Coulee built?
It was built in 1955, making it 70 years old in 2025.
What condition is County HWY over Big Coulee in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2020.
How much traffic does County HWY over Big Coulee carry?
About 200 vehicles per day (2018 count), of which roughly 5% are trucks.
How long is County HWY over Big Coulee?
The structure is 50 ft (15.2 m) long with a longest span of 24 ft (7.3 m) and a deck 33 ft wide.
Who owns County HWY over Big Coulee?
It is owned by the County Highway Agency.