US Bridges

Owls Nest Trail over Lit Mussel CR

Fair

Adair County, Missouri · S 30 T 62 N R 17 W · Structure no. 18801

Built
1990
35 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
3 main spans
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

Owls Nest Trail over Lit Mussel CR is a steel stringer/multi-beam or girder carrying Owls Nest Trail over Lit Mussel CR in Adair County, Missouri. It was built in 1990, so it is 35 years old, younger 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 5 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 11 by 2044. The structure is 54 ft (16.5 m) long and 16 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesOwls Nest Trail
CrossesLit Mussel CR
LocationS 30 T 62 N R 17 W
RouteCounty Highway 200
CountyAdair County
StateMissouri
Coordinates40.15417, -92.84778
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating29.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length54 ft (16.5 m)
Longest span28 ft (8.5 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic11 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$283,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Owls Nest Trail over Lit Mussel CR built?

It was built in 1990, making it 35 years old in 2025.

What condition is Owls Nest Trail over Lit Mussel CR 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 February 2024.

How much traffic does Owls Nest Trail over Lit Mussel CR carry?

About 10 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Owls Nest Trail over Lit Mussel CR?

The structure is 54 ft (16.5 m) long with a longest span of 28 ft (8.5 m) and a deck 16 ft wide.

Who owns Owls Nest Trail over Lit Mussel CR?

It is owned by the County Highway Agency.