US Bridges

Mo 6 E over Troublesome CR

Fair

Knox County, Missouri · S 21 T 62 N R 11 W · Structure no. 28984

Built
2002
23 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
44 ft
3 main spans
Daily traffic
1,592
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over Troublesome CR is a concrete continuous culvert carrying Mo 6 E over Troublesome CR in Knox County, Missouri. It was built in 2002, so it is 23 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 1,592 vehicles a day, roughly 19% of them trucks, projected to reach 3,025 by 2044. The structure is 44 ft (13.4 m) long and 44 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesMo 6 E
CrossesTroublesome CR
LocationS 21 T 62 N R 11 W
RouteState Highway 6
CountyKnox County
StateMissouri
Coordinates40.16796, -92.11665
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating103.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span15 ft (4.6 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,592 (2024)
Projected traffic3,025 by 2044
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Troublesome CR built?

It was built in 2002, making it 23 years old in 2025.

What condition is Mo 6 E over Troublesome 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 November 2023.

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

About 1,592 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is Mo 6 E over Troublesome CR?

The structure is 44 ft (13.4 m) long with a longest span of 15 ft (4.6 m) and a deck 44 ft wide.

Who owns Mo 6 E over Troublesome CR?

It is owned by the State Highway Agency.