US Bridges

Mo 6 E over Locust CR

Fair

Sullivan County, Missouri · S 30 T 62 N R 20 W · Structure no. 3594

Built
1985
40 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
407 ft
7 main spans
Daily traffic
1,270
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over Locust CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 6 E over Locust CR in Sullivan County, Missouri. It was built in 1985, so it is 40 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 1,270 vehicles a day, roughly 21% of them trucks, projected to reach 2,223 by 2044. The structure is 407 ft (124.1 m) long and 41 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesMo 6 E
CrossesLocust CR
LocationS 30 T 62 N R 20 W
RouteState Highway 6
Coordinates40.14173, -93.18545
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.5 US tons
Inventory rating39.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length407 ft (124.1 m)
Longest span68 ft (20.7 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,270 (2024)
Projected traffic2,223 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 Locust CR built?

It was built in 1985, making it 40 years old in 2025.

What condition is Mo 6 E over Locust 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 August 2023.

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

About 1,270 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is Mo 6 E over Locust CR?

The structure is 407 ft (124.1 m) long with a longest span of 68 ft (20.7 m) and a deck 41 ft wide.

Who owns Mo 6 E over Locust CR?

It is owned by the State Highway Agency.