US Bridges

County Road 171 over Wakenda CR

Fair

Carroll County, Missouri · S 31 T 53 N R 24 W · Structure no. 22301

Built
1989
36 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
193 ft
4 main spans
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

County Road 171 over Wakenda CR is a prestressed concrete continuous tee beam carrying County Road 171 over Wakenda CR in Carroll County, Missouri. It was built in 1989, so it is 36 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 28 by 2044. The structure is 193 ft (58.8 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Road 171
CrossesWakenda CR
LocationS 31 T 53 N R 24 W
RouteCounty Highway 349
CountyCarroll County
StateMissouri
Coordinates39.35602, -93.62419
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length193 ft (58.8 m)
Longest span50 ft (15.2 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic28 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 County Road 171 over Wakenda CR built?

It was built in 1989, making it 36 years old in 2025.

What condition is County Road 171 over Wakenda 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 November 2023.

How much traffic does County Road 171 over Wakenda CR carry?

About 25 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County Road 171 over Wakenda CR?

The structure is 193 ft (58.8 m) long with a longest span of 50 ft (15.2 m) and a deck 27 ft wide.

Who owns County Road 171 over Wakenda CR?

It is owned by the County Highway Agency.