US 287 Ml over Highland Ditch
Fair Condition27 years old23,000 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | 2.1 Mi No Of Jct SH 66 |
| Carries | US 287 Ml |
| Crosses | Highland Ditch |
| Coordinates | 40.23407, -105.10208 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 31.8 ft (9.7 m) |
| Max Span | 15.4 ft (4.7 m) |
| Deck Width | 176.8 ft (53.9 m) |
| Deck Area | 522.8 sq m |
| Main Spans | 2 |
| Year Built | 1999 |
Traffic
| Avg Daily Traffic | 23,000 (2020) |
| Truck Traffic | 2% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | D-16-BC |