US Bridges

CO RD SW 800 over E Fk Post Oak CR

PoorPosted for load

Johnson County, Missouri · S 32 T 45 N R 26 W · Structure no. 22730

Built
1900
125 years old, rebuilt 1986
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
97 ft
1 main span
Daily traffic
45
2023 count
Owner
County
County Highway Agency

About this bridge

CO RD SW 800 over E Fk Post Oak CR is a steel stringer/multi-beam or girder carrying CO RD SW 800 over E Fk Post Oak CR in Johnson County, Missouri. It was built in 1900 and reconstructed in 1986, so it is 125 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. Its operating status is: posted for load restriction.

It carries about 45 vehicles a day, roughly 10% of them trucks, projected to reach 72 by 2043. The structure is 97 ft (29.6 m) long and 21 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCO RD SW 800
CrossesE Fk Post Oak CR
LocationS 32 T 45 N R 26 W
RouteCounty Highway 371
Coordinates38.64572, -93.81215
Functional classRural Local

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating19.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadOther
Structure length97 ft (29.6 m)
Longest span46 ft (14 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.2 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 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$483,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD SW 800 over E Fk Post Oak CR built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1986.

What condition is CO RD SW 800 over E Fk Post Oak 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 December 2024.

How much traffic does CO RD SW 800 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 800 over E Fk Post Oak CR?

The structure is 97 ft (29.6 m) long with a longest span of 46 ft (14 m) and a deck 21 ft wide.

Who owns CO RD SW 800 over E Fk Post Oak CR?

It is owned by the County Highway Agency.