Tunnel Dam RD over Niangua River
Poor Condition34 years old70 vehicles/day
Location
| State | Missouri |
| County | Camden |
| Location | S 23 T 37 N R 18 W |
| Carries | Tunnel Dam RD |
| Crosses | Niangua River |
| Coordinates | 37.93797, -92.87584 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 127.0 ft (38.7 m) |
| Max Span | 7.9 ft (2.4 m) |
| Deck Width | 15.4 ft (4.7 m) |
| Deck Area | 181.9 sq m |
| Main Spans | 15 |
| Year Built | 1992 |
Traffic
| Avg Daily Traffic | 70 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 17261 |