US Bridges

Rt Nn S over Barton Br

Fair

Ripley County, Missouri · S 1 T 24 N R 2 E · Structure no. 7140

Built
1959
66 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
90
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Nn S over Barton Br is a concrete continuous culvert carrying Rt Nn S over Barton Br in Ripley County, Missouri. It was built in 1959, so it is 66 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 90 vehicles a day, roughly 26% of them trucks, projected to reach 126 by 2044. The structure is 30 ft (9 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesRt Nn S
CrossesBarton Br
LocationS 1 T 24 N R 2 E
RouteState Highway 0NN
CountyRipley County
StateMissouri
Coordinates36.75531, -90.81182
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length30 ft (9 m)
Longest span14 ft (4.3 m)
Deck width35 ft (10.7 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2024)
Projected traffic126 by 2044
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 S over Barton Br built?

It was built in 1959, making it 66 years old in 2025.

What condition is Rt Nn S over Barton Br 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 December 2023.

How much traffic does Rt Nn S over Barton Br carry?

About 90 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is Rt Nn S over Barton Br?

The structure is 30 ft (9 m) long with a longest span of 14 ft (4.3 m) and a deck 35 ft wide.

Who owns Rt Nn S over Barton Br?

It is owned by the State Highway Agency.