County Road 1 over Big Dry Creek
Fair Condition31 years old9,859 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | 0.3 Mi N Of Co RD 20.5 |
| Carries | County Road 1 |
| Crosses | Big Dry Creek |
| Coordinates | 40.14487, -105.05531 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 30.8 ft (9.4 m) |
| Max Span | 28.5 ft (8.7 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 103.4 sq m |
| Main Spans | 1 |
| Year Built | 1995 |
Traffic
| Avg Daily Traffic | 9,859 (2023) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 225 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | WEL001.0-020.5A |