US Bridges

Mo 6 E over Mussel Fk CR

Fair

Sullivan County, Missouri · S 16 T 63 N R 18 W · Structure no. 5404

Built
1932
93 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
1,512
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over Mussel Fk CR is a concrete continuous culvert carrying Mo 6 E over Mussel Fk CR in Sullivan County, Missouri. It was built in 1932, so it is 93 years old, older 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 5 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 1,512 vehicles a day, roughly 22% of them trucks, projected to reach 2,646 by 2044. The structure is 26 ft (7.9 m) long and 38 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesMo 6 E
CrossesMussel Fk CR
LocationS 16 T 63 N R 18 W
RouteState Highway 6
CountySullivan County
StateMissouri
Coordinates40.26156, -92.93113
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99.2 US tons
Inventory rating59.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,512 (2024)
Projected traffic2,646 by 2044
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 Mussel Fk CR built?

It was built in 1932, making it 93 years old in 2025.

What condition is Mo 6 E over Mussel Fk 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 Mussel Fk CR carry?

About 1,512 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is Mo 6 E over Mussel Fk CR?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 38 ft wide.

Who owns Mo 6 E over Mussel Fk CR?

It is owned by the State Highway Agency.