SH 121 Ml over Sanderson Gulch
Fair Condition50 years old42,000 vehicles/day
Location
| State | Colorado |
| County | Jefferson |
| Location | Just S. Of Jewell Ave. |
| Carries | SH 121 Ml |
| Crosses | Sanderson Gulch |
| Coordinates | 39.68109, -105.08131 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.7 ft (6.6 m) |
| Max Span | 10.5 ft (3.2 m) |
| Deck Width | 111.5 ft (34 m) |
| Deck Area | 224.4 sq m |
| Main Spans | 2 |
| Year Built | 1976 (reconstructed 1986) |
Traffic
| Avg Daily Traffic | 42,000 (2020) |
| Truck Traffic | 2% |
| Lanes On Bridge | 6 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | F-16-JJ |