US Bridges

Mo 11 S over Lit Walnut CR

Good

Adair County, Missouri · S 10 T 61 N R 17 W · Structure no. 33227

Built
2010
15 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
91 ft
1 main span
Daily traffic
419
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 11 S over Lit Walnut CR is a prestressed concrete box beam or girders - multiple carrying Mo 11 S over Lit Walnut CR in Adair County, Missouri. It was built in 2010, so it is 15 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 419 vehicles a day, roughly 16% of them trucks, projected to reach 524 by 2044. The structure is 91 ft (27.8 m) long and 26 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesMo 11 S
CrossesLit Walnut CR
LocationS 10 T 61 N R 17 W
RouteState Highway 11
Coordinates40.09572, -92.78958
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.4 US tons
Inventory rating39.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length91 ft (27.8 m)
Longest span90 ft (27.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic419 (2024)
Projected traffic524 by 2044
Trucks16%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 11 S over Lit Walnut CR built?

It was built in 2010, making it 15 years old in 2025.

What condition is Mo 11 S over Lit Walnut CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does Mo 11 S over Lit Walnut CR carry?

About 419 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is Mo 11 S over Lit Walnut CR?

The structure is 91 ft (27.8 m) long with a longest span of 90 ft (27.4 m) and a deck 26 ft wide.

Who owns Mo 11 S over Lit Walnut CR?

It is owned by the State Highway Agency.