South Duncan Bypas over U.S. 81 under
GoodStephens County, Oklahoma · 7.2 N S.H. 53 · Structure no. 301350000000000
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 420 ft
- 3 main spans
- Daily traffic
- 1,570
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
South Duncan Bypas over U.S. 81 under is a steel stringer/multi-beam or girder carrying South Duncan Bypas over U.S. 81 under in Stephens County, Oklahoma. It was built in 2018, so it is 7 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 1,570 vehicles a day, projected to reach 1,600 by 2042. The structure is 420 ft (128 m) long and 41 ft wide.
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 | 9 Excellent | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was South Duncan Bypas over U.S. 81 under built?
It was built in 2018, making it 7 years old in 2025.
What condition is South Duncan Bypas over U.S. 81 under 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 May 2024.
How much traffic does South Duncan Bypas over U.S. 81 under carry?
About 1,570 vehicles per day (2022 count).
How long is South Duncan Bypas over U.S. 81 under?
The structure is 420 ft (128 m) long with a longest span of 180 ft (54.9 m) and a deck 41 ft wide.
Who owns South Duncan Bypas over U.S. 81 under?
It is owned by the State Highway Agency.