N2990 over Walnut Creek
PoorMcClain County, Oklahoma · .5E1.5S1W.9S of Blanchard · Structure no. 216050000000000
- Built
- 1987
- 38 years old
- Condition
- Poor
- inspected May 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 91 ft
- 3 main spans
- Daily traffic
- 100
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
N2990 over Walnut Creek is a prestressed concrete tee beam carrying N2990 over Walnut Creek in McClain County, Oklahoma. It was built in 1987, so it is 38 years old, younger than the Oklahoma average of 47.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 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.
It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 91 ft (27.6 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 N2990 over Walnut Creek built?
It was built in 1987, making it 38 years old in 2025.
What condition is N2990 over Walnut Creek 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 May 2023.
How much traffic does N2990 over Walnut Creek carry?
About 100 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is N2990 over Walnut Creek?
The structure is 91 ft (27.6 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.
Who owns N2990 over Walnut Creek?
It is owned by the City or Municipal Highway Agency.