170 ST over Mid Tarkio CR
Good Condition30 years old15 vehicles/day
Location
| State | Missouri |
| County | Atchison |
| Location | S 31 T 66 N R 37 W |
| Carries | 170 ST |
| Crosses | Mid Tarkio CR |
| Coordinates | 40.48079, -95.36398 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 121.1 ft (36.9 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 22.6 ft (6.9 m) |
| Deck Area | 254.6 sq m |
| Main Spans | 3 |
| Year Built | 1996 |
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 | 16541 |