N3370 over Deep Fork River
PoorPosted for loadLincoln County, Oklahoma · 5.8N of Ross · Structure no. 014120000000000
- Built
- 1924
- 101 years old
- Condition
- Poor
- inspected June 2023
- Type
- Truss - Thru
- Steel
- Length
- 193 ft
- 1 main span
- Daily traffic
- 100
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
N3370 over Deep Fork River is a steel truss - thru carrying N3370 over Deep Fork River in Lincoln County, Oklahoma. It was built in 1924, so it is 101 years old, older 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. Its operating status is: posted for load restriction.
It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 193 ft (58.7 m) long and 16 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, 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 N3370 over Deep Fork River built?
It was built in 1924, making it 101 years old in 2025.
What condition is N3370 over Deep Fork River 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 June 2023.
How much traffic does N3370 over Deep Fork River carry?
About 100 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is N3370 over Deep Fork River?
The structure is 193 ft (58.7 m) long with a longest span of 110 ft (33.5 m) and a deck 16 ft wide.
Who owns N3370 over Deep Fork River?
It is owned by the County Highway Agency.