66th Ave over Big Muddy Creek
GoodMorton County, North Dakota · NW Glen Ullin · Structure no. 000000030112120
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected September 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 118 ft
- 3 main spans
- Daily traffic
- 25
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
66th Ave over Big Muddy Creek is a prestressed concrete tee beam carrying 66th Ave over Big Muddy Creek in Morton County, North Dakota. It was built in 1985, so it is 40 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 25 vehicles a day, projected to reach 25 by 2038. The structure is 118 ft (36 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 66th Ave over Big Muddy Creek built?
It was built in 1985, making it 40 years old in 2025.
What condition is 66th Ave over Big Muddy Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.
How much traffic does 66th Ave over Big Muddy Creek carry?
About 25 vehicles per day (2018 count).
How long is 66th Ave over Big Muddy Creek?
The structure is 118 ft (36 m) long with a longest span of 34 ft (10.4 m) and a deck 32 ft wide.
Who owns 66th Ave over Big Muddy Creek?
It is owned by the County Highway Agency.