Strath Street over Left Hand Creek
Fair Condition56 years old92 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | 0.2 Mi N Of Niwot RD |
| Carries | Strath Street |
| Crosses | Left Hand Creek |
| Coordinates | 40.10458, -105.21169 |
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 | 28.9 ft (8.8 m) |
| Max Span | 14.1 ft (4.3 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 91.5 sq m |
| Main Spans | 2 |
| Year Built | 1970 |
Traffic
| Avg Daily Traffic | 92 (2023) |
| Truck Traffic | 17% |
| 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 | BC-O-OSK-9A |