US Bridges

Rt Aa E over Troublesome CR

Fair

Knox County, Missouri · S 5 T 62 N R 11 W · Structure no. 8145

Built
1961
64 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
179
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Aa E over Troublesome CR is a concrete continuous culvert carrying Rt Aa E over Troublesome CR in Knox County, Missouri. It was built in 1961, so it is 64 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 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 179 vehicles a day, roughly 11% of them trucks, projected to reach 260 by 2044. The structure is 21 ft (6.3 m) long and 28 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesRt Aa E
CrossesTroublesome CR
LocationS 5 T 62 N R 11 W
RouteState Highway 0AA
CountyKnox County
StateMissouri
Coordinates40.19717, -92.14179
Functional classRural Minor Collector

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 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating41.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic179 (2024)
Projected traffic260 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

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 Rt Aa E over Troublesome CR built?

It was built in 1961, making it 64 years old in 2025.

What condition is Rt Aa 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 Rt Aa E over Troublesome CR carry?

About 179 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt Aa E over Troublesome CR?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns Rt Aa E over Troublesome CR?

It is owned by the State Highway Agency.