US Bridges

Mo 11 S over Steer CR

Good

Adair County, Missouri · S 4 T 62 N R 14 W · Structure no. 36534

Built
2021
4 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
750
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 11 S over Steer CR is a prestressed concrete tee beam carrying Mo 11 S over Steer CR in Adair County, Missouri. It was built in 2021, so it is 4 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 750 vehicles a day, roughly 23% of them trucks, projected to reach 938 by 2044. The structure is 84 ft (25.6 m) long and 29 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

Location

Open in Google Maps
CarriesMo 11 S
CrossesSteer CR
LocationS 4 T 62 N R 14 W
RouteState Highway 11
CountyAdair County
StateMissouri
Coordinates40.20998, -92.47846
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.2 US tons
Inventory rating39.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length84 ft (25.6 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2024)
Projected traffic938 by 2044
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 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 Steer CR built?

It was built in 2021, making it 4 years old in 2025.

What condition is Mo 11 S over Steer 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 Steer CR carry?

About 750 vehicles per day (2024 count), of which roughly 23% are trucks.

How long is Mo 11 S over Steer CR?

The structure is 84 ft (25.6 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns Mo 11 S over Steer CR?

It is owned by the State Highway Agency.