US 36 Ml over Four Mile Canyon Creek
Fair Condition69 years old16,000 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | 28th ST In Boulder |
| Carries | US 36 Ml |
| Crosses | Four Mile Canyon Creek |
| Coordinates | 40.04659, -105.25860 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 92.8 ft (28.3 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 43.0 ft (13.1 m) |
| Deck Area | 370.7 sq m |
| Main Spans | 3 |
| Year Built | 1957 (reconstructed 2016) |
Traffic
| Avg Daily Traffic | 16,000 (2020) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | D-15-B |