US Bridges

NE 40th LN over Trib of Clear CR

Fair

Barton County, Missouri · S 15 T 33 N R 30 W · Structure no. 30797

Built
2004
21 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

NE 40th LN over Trib of Clear CR is a concrete slab carrying NE 40th LN over Trib of Clear CR in Barton County, Missouri. It was built in 2004, so it is 21 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 49 by 2043. The structure is 30 ft (9.1 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNE 40th LN
CrossesTrib of Clear CR
LocationS 15 T 33 N R 30 W
RouteCounty Highway 52
Coordinates37.61362, -94.22077
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionMarch 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating46.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic49 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 NE 40th LN over Trib of Clear CR built?

It was built in 2004, making it 21 years old in 2025.

What condition is NE 40th LN over Trib of Clear 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 March 2023.

How much traffic does NE 40th LN over Trib of Clear CR carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NE 40th LN over Trib of Clear CR?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 27 ft wide.

Who owns NE 40th LN over Trib of Clear CR?

It is owned by the County Highway Agency.