US 36 Ml over Supply Ditch
Fair Condition54 years old15,000 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | In Lyons |
| Carries | US 36 Ml |
| Crosses | Supply Ditch |
| Coordinates | 40.21913, -105.26108 |
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 | 22.6 ft (6.9 m) |
| Max Span | 10.8 ft (3.3 m) |
| Deck Width | 91.2 ft (27.8 m) |
| Deck Area | 191.8 sq m |
| Main Spans | 2 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 15,000 (2020) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 325 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | D-15-BE |