No. 30th Street over Four Mile Creek
Poor Condition53 years old1,424 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | 300 Ft N Of Palo Parkway |
| Carries | No. 30th Street |
| Crosses | Four Mile Creek |
| Coordinates | 40.04471, -105.25377 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 9 (Excellent) |
| Superstructure | 4 (Poor) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 71.9 ft (21.9 m) |
| Max Span | 33.1 ft (10.1 m) |
| Deck Width | 54.1 ft (16.5 m) |
| Deck Area | 361.4 sq m |
| Main Spans | 2 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 1,424 (2023) |
| Truck Traffic | 5% |
| 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-30TH-0.5-FMC |