US Bridges

Tharpe School RD over Clark CR

FairPosted for load

Wright County, Missouri · S 27 T 29 N R 14 W · Structure no. 22483

Built
1950
75 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

Tharpe School RD over Clark CR is a concrete continuous slab carrying Tharpe School RD over Clark CR in Wright County, Missouri. It was built in 1950, so it is 75 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 49 by 2043. The structure is 24 ft (7.3 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesTharpe School RD
CrossesClark CR
LocationS 27 T 29 N R 14 W
RouteCounty Highway 358
CountyWright County
StateMissouri
Coordinates37.16496, -92.45143
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating22.8 US tons
Inventory rating13.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length24 ft (7.3 m)
Longest span12 ft (3.7 m)
Deck width18 ft (5.6 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic49 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$174,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Tharpe School RD over Clark CR built?

It was built in 1950, making it 75 years old in 2025.

What condition is Tharpe School RD over Clark 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 December 2024.

How much traffic does Tharpe School RD over Clark CR carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Tharpe School RD over Clark CR?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m) and a deck 18 ft wide.

Who owns Tharpe School RD over Clark CR?

It is owned by the County Highway Agency.