US Bridges

Rt Nn E over Malden CR

Fair

Buchanan County, Missouri · S 4 T 56 N R 33 W · Structure no. 6030

Built
1941
84 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
519
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Nn E over Malden CR is a concrete culvert carrying Rt Nn E over Malden CR in Buchanan County, Missouri. It was built in 1941, so it is 84 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 519 vehicles a day, roughly 10% of them trucks, projected to reach 675 by 2044. The structure is 20 ft (6.1 m) long and 34 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesRt Nn E
CrossesMalden CR
LocationS 4 T 56 N R 33 W
RouteState Highway 0NN
Coordinates39.68896, -94.60714
Functional classRural Major 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 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating104.2 US tons
Inventory rating62.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic519 (2024)
Projected traffic675 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Nn E over Malden CR built?

It was built in 1941, making it 84 years old in 2025.

What condition is Rt Nn E over Malden 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 2024.

How much traffic does Rt Nn E over Malden CR carry?

About 519 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt Nn E over Malden CR?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 34 ft wide.

Who owns Rt Nn E over Malden CR?

It is owned by the State Highway Agency.