US Bridges

CO RD SW 500 over E Fk Post Oak CR

Fair

Johnson County, Missouri · S 16 T 45 N R 26 W · Structure no. 23127

Built
1991
34 years old
Condition
Fair
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
110 ft
3 main spans
Daily traffic
45
2023 count
Owner
County
County Highway Agency

About this bridge

CO RD SW 500 over E Fk Post Oak CR is a prestressed concrete tee beam carrying CO RD SW 500 over E Fk Post Oak CR in Johnson County, Missouri. It was built in 1991, so it is 34 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 45 vehicles a day, roughly 10% of them trucks, projected to reach 72 by 2043. The structure is 110 ft (33.5 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCO RD SW 500
CrossesE Fk Post Oak CR
LocationS 16 T 45 N R 26 W
RouteCounty Highway 391
Coordinates38.6892, -93.79378
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating32.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span40 ft (12.2 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2023)
Projected traffic72 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 CO RD SW 500 over E Fk Post Oak CR built?

It was built in 1991, making it 34 years old in 2025.

What condition is CO RD SW 500 over E Fk Post Oak 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 CO RD SW 500 over E Fk Post Oak CR carry?

About 45 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is CO RD SW 500 over E Fk Post Oak CR?

The structure is 110 ft (33.5 m) long with a longest span of 40 ft (12.2 m) and a deck 26 ft wide.

Who owns CO RD SW 500 over E Fk Post Oak CR?

It is owned by the County Highway Agency.