N 81st ST (cr 31) over Left Hand Creek
Good Condition34 years old182 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | 0.1 M N Of Oxford RD (26) |
| Carries | N 81st ST (cr 31) |
| Crosses | Left Hand Creek |
| Coordinates | 40.11850, -105.16660 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Single/Spread |
| Total Length | 56.1 ft (17.1 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 177.8 sq m |
| Main Spans | 1 |
| Year Built | 1992 |
Traffic
| Avg Daily Traffic | 182 (2022) |
| Truck Traffic | 23% |
| 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-31-8.6-LT1 |