N4520 over Creek
Poor Condition87 years old100 vehicles/day
Location
| State | Oklahoma |
| County | Ottawa |
| Location | 2.5 NE 1 E Of Afton |
| Carries | N4520 |
| Crosses | Creek |
| Coordinates | 36.73950, -94.94534 |
Condition Ratings
| Overall Condition | Poor |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 2 (Critical) |
| Scour Critical | 2 — Bridge closed (monitoring) |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Width | 20.0 ft (6.1 m) |
| Deck Area | 55.5 sq m |
| Main Spans | 2 |
| Year Built | 1939 |
Traffic
| Avg Daily Traffic | 100 (2022) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 6 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 066140000000000 |