US Bridges

Rt U S over Linn CR

Fair

Osage County, Missouri · S 18 T 43 N R 8 W · Structure no. 9450

Built
1900
125 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
1,574
2024 count
Owner
State
State Highway Agency

About this bridge

Rt U S over Linn CR is a concrete continuous culvert carrying Rt U S over Linn CR in Osage County, Missouri. It was built in 1900, so it is 125 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 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 1,574 vehicles a day, roughly 6% of them trucks, projected to reach 2,282 by 2044. The structure is 23 ft (7 m) long and 36 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesRt U S
CrossesLinn CR
LocationS 18 T 43 N R 8 W
RouteState Highway 0U
CountyOsage County
StateMissouri
Coordinates38.47884, -91.85953
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating26.8 US tons
Inventory rating15.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length23 ft (7 m)
Longest span9 ft (2.8 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,574 (2024)
Projected traffic2,282 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt U S over Linn CR built?

It was built in 1900, making it 125 years old in 2025.

What condition is Rt U S over Linn 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 2025.

How much traffic does Rt U S over Linn CR carry?

About 1,574 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Rt U S over Linn CR?

The structure is 23 ft (7 m) long with a longest span of 9 ft (2.8 m) and a deck 36 ft wide.

Who owns Rt U S over Linn CR?

It is owned by the State Highway Agency.