170 ST over Rock CR
Good Condition25 years old15 vehicles/day
Location
| State | Missouri |
| County | Atchison |
| Location | S 31 T 66 N R 40 W |
| Carries | 170 ST |
| Crosses | Rock CR |
| Coordinates | 40.48136, -95.47790 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 90.9 ft (27.7 m) |
| Max Span | 88.9 ft (27.1 m) |
| Deck Width | 25.3 ft (7.7 m) |
| Deck Area | 213.3 sq m |
| Main Spans | 1 |
| Year Built | 2001 |
Traffic
| Avg Daily Traffic | 15 (2024) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28961 |