County Road 71 over North St. Vrain Creek
Fair Condition35 years old178 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | 30 Feet South Of US Highw |
| Carries | County Road 71 |
| Crosses | North St. Vrain Creek |
| Coordinates | 40.24778, -105.28958 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 8 (Very Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Wood or Timber |
| Design | Arch - Thru |
| Total Length | 76.1 ft (23.2 m) |
| Max Span | 66.9 ft (20.4 m) |
| Deck Width | 32.8 ft (10 m) |
| Deck Area | 232 sq m |
| Main Spans | 1 |
| Year Built | 1991 |
Traffic
| Avg Daily Traffic | 178 (2023) |
| Truck Traffic | 10% |
| 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-71-2.4-NSV1 |