IRR N4520 over Horse Creek
Fair Condition87 years old50 vehicles/day
Location
| State | Oklahoma |
| County | Ottawa |
| Location | 2.4 N. & 1.0 E. Of Afton |
| Carries | IRR N4520 |
| Crosses | Horse Creek |
| Coordinates | 36.73275, -94.94540 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 36.1 ft (11 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 93.5 sq m |
| Main Spans | 3 |
| Year Built | 1939 |
Traffic
| Avg Daily Traffic | 50 (2022) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 069610000000000 |