US Bridges

Mo 46 E over Lit Tarkio CR

Good

Atchison County, Missouri · S 19 T 64 N R 39 W · Structure no. 37068

Built
2023
2 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
153 ft
3 main spans
Daily traffic
566
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 46 E over Lit Tarkio CR is a steel continuous stringer/multi-beam or girder carrying Mo 46 E over Lit Tarkio CR in Atchison County, Missouri. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 566 vehicles a day, roughly 20% of them trucks, projected to reach 736 by 2044. The structure is 153 ft (46.5 m) long and 29 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesMo 46 E
CrossesLit Tarkio CR
LocationS 19 T 64 N R 39 W
RouteState Highway 46
CountyAtchison County
StateMissouri
Coordinates40.33581, -95.33904
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length153 ft (46.5 m)
Longest span55 ft (16.8 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic566 (2024)
Projected traffic736 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 46 E over Lit Tarkio CR built?

It was built in 2023, making it 2 years old in 2025.

What condition is Mo 46 E 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 June 2024.

How much traffic does Mo 46 E over Lit Tarkio CR carry?

About 566 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is Mo 46 E over Lit Tarkio CR?

The structure is 153 ft (46.5 m) long with a longest span of 55 ft (16.8 m) and a deck 29 ft wide.

Who owns Mo 46 E over Lit Tarkio CR?

It is owned by the State Highway Agency.