55th Street over Empson Ditch
Fair Condition30 years old9,146 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | 250 Ft N Of Penn. Ave. |
| Carries | 55th Street |
| Crosses | Empson Ditch |
| Coordinates | 40.00727, -105.22528 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Single/Spread |
| Total Length | 48.9 ft (14.9 m) |
| Max Span | 44.0 ft (13.4 m) |
| Deck Width | 55.1 ft (16.8 m) |
| Deck Area | 250.3 sq m |
| Main Spans | 1 |
| Year Built | 1996 |
Traffic
| Avg Daily Traffic | 9,146 (2023) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 225 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | BOLD-08-0.49-1A |