US Bridges

Mo 6 E over Steer CR

Fair

Adair County, Missouri · S 4 T 62 N R 15 W · Structure no. 4111

Built
1995
30 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
37 ft
3 main spans
Daily traffic
13,826
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over Steer CR is a concrete continuous culvert carrying Mo 6 E over Steer CR in Adair County, Missouri. It was built in 1995, so it is 30 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 6 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 13,826 vehicles a day, roughly 9% of them trucks, projected to reach 17,974 by 2044. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMo 6 E
CrossesSteer CR
LocationS 4 T 62 N R 15 W
RouteState Highway 6
CountyAdair County
StateMissouri
Coordinates40.20647, -92.57763
Functional classUrban Other Principal 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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating72.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length37 ft (11.3 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 traffic13,826 (2024)
Projected traffic17,974 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

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 6 E over Steer CR built?

It was built in 1995, making it 30 years old in 2025.

What condition is Mo 6 E over Steer 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 December 2023.

How much traffic does Mo 6 E over Steer CR carry?

About 13,826 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Mo 6 E over Steer CR?

The structure is 37 ft (11.3 m) long with a longest span of 12 ft (3.7 m).

Who owns Mo 6 E over Steer CR?

It is owned by the State Highway Agency.