N3670 over Rock Creek
Poor Condition56 years old100 vehicles/day
Location
| State | Oklahoma |
| County | Bryan |
| Location | 4.5 W .3 S Jct Us69&70 |
| Carries | N3670 |
| Crosses | Rock Creek |
| Coordinates | 33.99424, -96.48284 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 4 (Poor) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 16.1 ft (4.9 m) |
| Deck Area | 44.6 sq m |
| Main Spans | 1 |
| Year Built | 1970 |
Traffic
| Avg Daily Traffic | 100 (2022) |
| Truck Traffic | 10% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 177280000000000 |