SH 121 Ml over Ralston Creek
Good Condition30 years old41,000 vehicles/day
Location
| State | Colorado |
| County | Jefferson |
| Location | Just N. Of Ralston RD |
| Carries | SH 121 Ml |
| Crosses | Ralston Creek |
| Coordinates | 39.80425, -105.07673 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 248.0 ft (75.6 m) |
| Max Span | 98.1 ft (29.9 m) |
| Deck Width | 119.1 ft (36.3 m) |
| Deck Area | 2744.3 sq m |
| Main Spans | 3 |
| Year Built | 1996 |
Traffic
| Avg Daily Traffic | 41,000 (2020) |
| Truck Traffic | 2% |
| Lanes On Bridge | 7 |
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 | E-16-PT |