N4230 over Timber Creek
Good Condition28 years old100 vehicles/day
Location
| State | Oklahoma |
| County | Nowata |
| Location | 1 M E Sh-28+4.3 S Us-60 |
| Carries | N4230 |
| Crosses | Timber Creek |
| Coordinates | 36.63604, -95.46754 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 66.9 ft (20.4 m) |
| Max Span | 65.0 ft (19.8 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 173.4 sq m |
| Main Spans | 1 |
| Year Built | 1998 |
Traffic
| Avg Daily Traffic | 100 (2022) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 252410000000000 |