US Bridges

280 ST over Lit Tarkio CR

Fair

Atchison County, Missouri · S 30 T 64 N R 39 W · Structure no. 24263

Built
1991
34 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
130 ft
3 main spans
Daily traffic
30
2024 count
Owner
County
County Highway Agency

About this bridge

280 ST over Lit Tarkio CR is a steel stringer/multi-beam or girder carrying 280 ST over Lit Tarkio CR in Atchison County, Missouri. It was built in 1991, so it is 34 years old, younger 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 35 by 2044. The structure is 130 ft (39.6 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries280 ST
CrossesLit Tarkio CR
LocationS 30 T 64 N R 39 W
RouteCounty Highway 471
CountyAtchison County
StateMissouri
Coordinates40.32115, -95.33834
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.5 US tons
Inventory rating36.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span58 ft (17.7 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2024)
Projected traffic35 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 280 ST over Lit Tarkio CR built?

It was built in 1991, making it 34 years old in 2025.

What condition is 280 ST over Lit 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 February 2024.

How much traffic does 280 ST over Lit Tarkio CR carry?

About 30 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 280 ST over Lit Tarkio CR?

The structure is 130 ft (39.6 m) long with a longest span of 58 ft (17.7 m) and a deck 25 ft wide.

Who owns 280 ST over Lit Tarkio CR?

It is owned by the County Highway Agency.