N1670 over Sweetwater Creek
GoodRoger Mills County, Oklahoma · 5. W 1.7 N of Sweetwater · Structure no. 217940000000000
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected April 2023
- Type
- Culvert
- Concrete
- Length
- 32 ft
- 3 main spans
- Daily traffic
- 100
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
N1670 over Sweetwater Creek is a concrete culvert carrying N1670 over Sweetwater Creek in Roger Mills County, Oklahoma. It was built in 1988, so it is 37 years old, younger than the Oklahoma average of 47.8 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 32 ft (9.8 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N1670 over Sweetwater Creek built?
It was built in 1988, making it 37 years old in 2025.
What condition is N1670 over Sweetwater 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 April 2023.
How much traffic does N1670 over Sweetwater Creek carry?
About 100 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is N1670 over Sweetwater Creek?
The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 44 ft wide.
Who owns N1670 over Sweetwater Creek?
It is owned by the County Highway Agency.