County Road 84s over South St. Vrain Creek
Fair Condition36 years old637 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | 0.1 Miles South Of State |
| Carries | County Road 84s |
| Crosses | South St. Vrain Creek |
| Coordinates | 40.21684, -105.27431 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Single/Spread |
| Total Length | 58.1 ft (17.7 m) |
| Max Span | 52.5 ft (16 m) |
| Deck Width | 38.1 ft (11.6 m) |
| Deck Area | 205.3 sq m |
| Main Spans | 1 |
| Year Built | 1990 |
Traffic
| Avg Daily Traffic | 637 (2023) |
| Truck Traffic | 6% |
| 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-84S-0.1-SSV1 |