US Bridges

220 ST over Lit Tarkio CR

Good

Atchison County, Missouri · S 27 T 34 N R 39 W · Structure no. 31124

Built
2005
20 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
149 ft
3 main spans
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

220 ST over Lit Tarkio CR is a prestressed concrete continuous stringer/multi-beam or girder carrying 220 ST over Lit Tarkio CR in Atchison County, Missouri. It was built in 2005, so it is 20 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 149 ft (45.4 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries220 ST
CrossesLit Tarkio CR
LocationS 27 T 34 N R 39 W
RouteCounty Highway 346
Coordinates40.40801, -95.27558
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.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.4 US tons
Inventory rating47.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length149 ft (45.4 m)
Longest span55 ft (16.8 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 220 ST over Lit Tarkio CR built?

It was built in 2005, making it 20 years old in 2025.

What condition is 220 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 220 ST over Lit Tarkio CR carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 220 ST over Lit Tarkio CR?

The structure is 149 ft (45.4 m) long with a longest span of 55 ft (16.8 m) and a deck 25 ft wide.

Who owns 220 ST over Lit Tarkio CR?

It is owned by the County Highway Agency.