County Road 80 over North St. Vrain Creek
Fair Condition38 years old268 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | 20 Feet South Of US High |
| Carries | County Road 80 |
| Crosses | North St. Vrain Creek |
| Coordinates | 40.24291, -105.31374 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Single/Spread |
| Total Length | 61.0 ft (18.6 m) |
| Max Span | 54.1 ft (16.5 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 174.8 sq m |
| Main Spans | 1 |
| Year Built | 1988 |
Traffic
| Avg Daily Traffic | 268 (2023) |
| Truck Traffic | 18% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | BC-80-0.1-NSV1 |