N1780 over Willow Creek
GoodEllis County, Oklahoma · 2S 3E .5S of Shattuck · Structure no. 251570000000000
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 101 ft
- 1 main span
- Daily traffic
- 60
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
N1780 over Willow Creek is a prestressed concrete stringer/multi-beam or girder carrying N1780 over Willow Creek in Ellis County, Oklahoma. It was built in 1996, so it is 29 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 60 vehicles a day, roughly 15% of them trucks, projected to reach 96 by 2042. The structure is 101 ft (30.8 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N1780 over Willow Creek built?
It was built in 1996, making it 29 years old in 2025.
What condition is N1780 over Willow 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 2024.
How much traffic does N1780 over Willow Creek carry?
About 60 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is N1780 over Willow Creek?
The structure is 101 ft (30.8 m) long with a longest span of 100 ft (30.5 m) and a deck 29 ft wide.
Who owns N1780 over Willow Creek?
It is owned by the County Highway Agency.