Mo 11 S over Mussel Fk
PoorAdair County, Missouri · S 31 T 61 N R 17 W · Structure no. 5756
- Built
- 1933
- 92 years old
- Condition
- Poor
- inspected March 2023
- Type
- Truss - Thru
- Steel
- Length
- 197 ft
- 1 main span
- Daily traffic
- 323
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 11 S over Mussel Fk is a steel truss - thru carrying Mo 11 S over Mussel Fk in Adair County, Missouri. It was built in 1933, so it is 92 years old, older than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 323 vehicles a day, roughly 11% of them trucks, projected to reach 404 by 2044. The structure is 197 ft (60 m) long and 23 ft wide. If it were closed, the detour would be 34.2 mi (55 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 11 S over Mussel Fk built?
It was built in 1933, making it 92 years old in 2025.
What condition is Mo 11 S over Mussel Fk in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.
How much traffic does Mo 11 S over Mussel Fk carry?
About 323 vehicles per day (2024 count), of which roughly 11% are trucks.
How long is Mo 11 S over Mussel Fk?
The structure is 197 ft (60 m) long with a longest span of 100 ft (30.5 m) and a deck 23 ft wide.
Who owns Mo 11 S over Mussel Fk?
It is owned by the State Highway Agency.