Muir Trail over Br of Mussel Fk
PoorPosted for loadAdair County, Missouri · S 29 T 62 N R 17 W · Structure no. 31483
- Built
- 1982
- 43 years old
- Condition
- Poor
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 36 ft
- 2 main spans
- Daily traffic
- 10
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Muir Trail over Br of Mussel Fk is a wood or timber stringer/multi-beam or girder carrying Muir Trail over Br of Mussel Fk in Adair County, Missouri. It was built in 1982, so it is 43 years old, younger 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. Its operating status is: posted for load restriction.
It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 11 by 2044. The structure is 36 ft (11 m) long and 16 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Muir Trail over Br of Mussel Fk built?
It was built in 1982, making it 43 years old in 2025.
What condition is Muir Trail over Br of 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 February 2024.
How much traffic does Muir Trail over Br of Mussel Fk carry?
About 10 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is Muir Trail over Br of Mussel Fk?
The structure is 36 ft (11 m) long with a longest span of 20 ft (6.1 m) and a deck 16 ft wide.
Who owns Muir Trail over Br of Mussel Fk?
It is owned by the County Highway Agency.