US Bridges

US 159 S over Lit Tarkio CR

Poor

Holt County, Missouri · S 4 T 60 N R 39 W · Structure no. 2232

Built
1970
55 years old
Condition
Poor
inspected November 2024
Type
Channel Beam
Concrete
Length
102 ft
3 main spans
Daily traffic
869
2024 count
Owner
State
State Highway Agency

About this bridge

US 159 S over Lit Tarkio CR is a concrete channel beam carrying US 159 S over Lit Tarkio CR in Holt County, Missouri. It was built in 1970, so it is 55 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 869 vehicles a day, roughly 21% of them trucks, projected to reach 1,173 by 2044. The structure is 102 ft (31.1 m) long and 37 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesUS 159 S
CrossesLit Tarkio CR
LocationS 4 T 60 N R 39 W
RouteU.S. Route 159
CountyHolt County
StateMissouri
Coordinates40.04238, -95.28036
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.6 US tons
Inventory rating33.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length102 ft (31.1 m)
Longest span34 ft (10.4 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic869 (2024)
Projected traffic1,173 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$775,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 159 S over Lit Tarkio CR built?

It was built in 1970, making it 55 years old in 2025.

What condition is US 159 S over Lit Tarkio CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does US 159 S over Lit Tarkio CR carry?

About 869 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is US 159 S over Lit Tarkio CR?

The structure is 102 ft (31.1 m) long with a longest span of 34 ft (10.4 m) and a deck 37 ft wide.

Who owns US 159 S over Lit Tarkio CR?

It is owned by the State Highway Agency.