US Bridges

Mo 6 E over Hog Br

Fair

Adair County, Missouri · S 29 T 62 N R 13 W · Structure no. 4013

Built
1993
32 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
3,360
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over Hog Br is a concrete continuous culvert carrying Mo 6 E over Hog Br in Adair County, Missouri. It was built in 1993, so it is 32 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 3,360 vehicles a day, roughly 27% of them trucks, projected to reach 5,880 by 2044. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 26.1 mi (42 km).

Location

Open in Google Maps
CarriesMo 6 E
CrossesHog Br
LocationS 29 T 62 N R 13 W
RouteState Highway 6
CountyAdair County
StateMissouri
Coordinates40.14598, -92.37508
Functional classRural Principal Arterial - Other

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 rating106.2 US tons
Inventory rating63.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,360 (2024)
Projected traffic5,880 by 2044
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 Hog Br built?

It was built in 1993, making it 32 years old in 2025.

What condition is Mo 6 E over Hog 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 6 E over Hog Br carry?

About 3,360 vehicles per day (2024 count), of which roughly 27% are trucks.

How long is Mo 6 E over Hog Br?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).

Who owns Mo 6 E over Hog Br?

It is owned by the State Highway Agency.