N3520 over Blue River
Good Condition18 years old100 vehicles/day
Location
| State | Oklahoma |
| County | Pontotoc |
| Location | 1 S & 5.9 E Of Roff |
| Carries | N3520 |
| Crosses | Blue River |
| Coordinates | 34.61123, -96.73947 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 107.6 ft (32.8 m) |
| Max Span | 105.0 ft (32 m) |
| Deck Width | 28.5 ft (8.7 m) |
| Deck Area | 285.4 sq m |
| Main Spans | 1 |
| Year Built | 2008 |
Traffic
| Avg Daily Traffic | 100 (2022) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 283720000000000 |