SH 170 Ml over South Boulder Creek
Fair Condition96 years old388 vehicles/day
Location
| State | Colorado |
| County | Boulder |
| Location | 0.9 Mi W. Of El Dorado Sp |
| Carries | SH 170 Ml |
| Crosses | South Boulder Creek |
| Coordinates | 39.93080, -105.29149 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 41.0 ft (12.5 m) |
| Max Span | 37.1 ft (11.3 m) |
| Deck Width | 16.4 ft (5 m) |
| Deck Area | 62.5 sq m |
| Main Spans | 1 |
| Year Built | 1930 (reconstructed 1993) |
Traffic
| Avg Daily Traffic | 388 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Park/Forest Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | E-15-AH |