US Bridges

240 ST over Lit Tarkio CR

Good

Atchison County, Missouri · S 4 T 64 N R 39 W · Structure no. 28966

Built
2001
24 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
140 ft
3 main spans
Daily traffic
5
2024 count
Owner
County
County Highway Agency

About this bridge

240 ST over Lit Tarkio CR is a steel stringer/multi-beam or girder carrying 240 ST over Lit Tarkio CR in Atchison County, Missouri. It was built in 2001, so it is 24 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5 vehicles a day, roughly 10% of them trucks, projected to reach 6 by 2044. The structure is 140 ft (42.7 m) long and 25 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Carries240 ST
CrossesLit Tarkio CR
LocationS 4 T 64 N R 39 W
RouteCounty Highway 365
Coordinates40.37916, -95.29872
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.7 US tons
Inventory rating21.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length140 ft (42.7 m)
Longest span59 ft (18.1 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2024)
Projected traffic6 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 240 ST over Lit Tarkio CR built?

It was built in 2001, making it 24 years old in 2025.

What condition is 240 ST over Lit Tarkio CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does 240 ST over Lit Tarkio CR carry?

About 5 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 240 ST over Lit Tarkio CR?

The structure is 140 ft (42.7 m) long with a longest span of 59 ft (18.1 m) and a deck 25 ft wide.

Who owns 240 ST over Lit Tarkio CR?

It is owned by the County Highway Agency.