SH 21 over Crooked Creek
Fair Condition58 years old2,200 vehicles/day
Location
| State | Idaho |
| County | Custer |
| Location | 3.1 W. Stanley |
| Carries | SH 21 |
| Crosses | Crooked Creek |
| Coordinates | 44.23658, -114.99733 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 7 (Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Width | 40.0 ft (12.2 m) |
| Deck Area | 78.1 sq m |
| Main Spans | 2 |
| Year Built | 1968 |
Traffic
| Avg Daily Traffic | 2,200 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000012965 |