US Bridges

Rt Nn E over Br of Benton CR

FairPosted for load

Crawford County, Missouri · S 5 T 36 N R 5 W · Structure no. 37271

Built
1932
93 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
20 ft
2 main spans
Daily traffic
66
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Nn E over Br of Benton CR is a concrete continuous slab carrying Rt Nn E over Br of Benton CR in Crawford 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. Its operating status is: posted for load restriction.

It carries about 66 vehicles a day, roughly 19% of them trucks, projected to reach 92 by 2044. The structure is 20 ft (6.2 m) long and 20 ft wide. If it were closed, the detour would be 9.3 mi (15 km).

Location

Open in Google Maps
CarriesRt Nn E
CrossesBr of Benton CR
LocationS 5 T 36 N R 5 W
RouteState Highway 0NN
CountyCrawford County
StateMissouri
Coordinates37.86586, -91.50661
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating8.9 US tons
Inventory rating6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length20 ft (6.2 m)
Longest span10 ft (3.1 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66 (2024)
Projected traffic92 by 2044
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.3 mi (15 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$304,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt Nn E over Br of Benton CR built?

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

What condition is Rt Nn E over Br of Benton 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 May 2024.

How much traffic does Rt Nn E over Br of Benton CR carry?

About 66 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is Rt Nn E over Br of Benton CR?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3.1 m) and a deck 20 ft wide.

Who owns Rt Nn E over Br of Benton CR?

It is owned by the State Highway Agency.