US Bridges

Mo 11 S over Bear CR Br

Fair

Adair County, Missouri · S 21 T 62 N R 15 W · Structure no. 4907

Built
1925
100 years old, rebuilt 1956
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
5,924
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 11 S over Bear CR Br is a concrete continuous culvert carrying Mo 11 S over Bear CR Br in Adair County, Missouri. It was built in 1925 and reconstructed in 1956, so it is 100 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 5,924 vehicles a day, roughly 7% of them trucks, projected to reach 7,701 by 2044. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesMo 11 S
CrossesBear CR Br
LocationS 21 T 62 N R 15 W
RouteState Highway 11
CountyAdair County
StateMissouri
Coordinates40.16458, -92.57214
Functional classUrban Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.3 US tons
Inventory rating52.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,924 (2024)
Projected traffic7,701 by 2044
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Mo 11 S over Bear CR Br built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1956.

What condition is Mo 11 S over Bear CR Br 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 December 2023.

How much traffic does Mo 11 S over Bear CR Br carry?

About 5,924 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Mo 11 S over Bear CR Br?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Mo 11 S over Bear CR Br?

It is owned by the State Highway Agency.