US Bridges

Rt M S over Tarkio CR

Fair

Atchison County, Missouri · S 32 T 67 N R 38 W · Structure no. 5959

Built
1938
87 years old, rebuilt 1959
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
100
2024 count
Owner
State
State Highway Agency

About this bridge

Rt M S over Tarkio CR is a concrete continuous culvert carrying Rt M S over Tarkio CR in Atchison County, Missouri. It was built in 1938 and reconstructed in 1959, so it is 87 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.

It carries about 100 vehicles a day, roughly 14% of them trucks, projected to reach 130 by 2044. The structure is 23 ft (7 m) long and 81 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesRt M S
CrossesTarkio CR
LocationS 32 T 67 N R 38 W
RouteState Highway 0M
CountyAtchison County
StateMissouri
Coordinates40.57437, -95.22136
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width81 ft (24.7 m)
Roadway width79 ft (24.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic130 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 M S over Tarkio CR built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1959.

What condition is Rt M S over Tarkio 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 January 2024.

How much traffic does Rt M S over Tarkio CR carry?

About 100 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Rt M S over Tarkio CR?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 81 ft wide.

Who owns Rt M S over Tarkio CR?

It is owned by the State Highway Agency.