Is 49 N over Mna RR
FairVernon County, Missouri · S 14 T 35 N R 31 W · Structure no. 2431
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 190 ft
- 3 main spans
- Daily traffic
- 7,738
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 49 N over Mna RR is a steel continuous stringer/multi-beam or girder carrying Is 49 N over Mna RR in Vernon County, Missouri. It was built in 1975, so it is 50 years old, older than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 7,738 vehicles a day, roughly 46% of them trucks, projected to reach 13,542 by 2044. The structure is 190 ft (57.9 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 49 N over Mna RR built?
It was built in 1975, making it 50 years old in 2025.
What condition is Is 49 N over Mna RR in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.
How much traffic does Is 49 N over Mna RR carry?
About 7,738 vehicles per day (2024 count), of which roughly 46% are trucks.
How long is Is 49 N over Mna RR?
The structure is 190 ft (57.9 m) long with a longest span of 75 ft (22.9 m) and a deck 42 ft wide.
Who owns Is 49 N over Mna RR?
It is owned by the State Highway Agency.