US Bridges

US 50 E over Post Oak CR

Fair

Johnson County, Missouri · S 14 T 46 N R 26 W · Structure no. 4803

Built
1924
101 years old, rebuilt 1990
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
271 ft
3 main spans
Daily traffic
10,042
2024 count
Owner
State
State Highway Agency

About this bridge

US 50 E over Post Oak CR is a steel continuous stringer/multi-beam or girder carrying US 50 E over Post Oak CR in Johnson County, Missouri. It was built in 1924 and reconstructed in 1990, so it is 101 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.

It carries about 10,042 vehicles a day, roughly 11% of them trucks, projected to reach 17,574 by 2044. The structure is 271 ft (82.6 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS 50 E
CrossesPost Oak CR
LocationS 14 T 46 N R 26 W
RouteU.S. Route 50
CountyJohnson County
StateMissouri
Coordinates38.77575, -93.76318
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.6 US tons
Inventory rating28.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadH 20
Structure length271 ft (82.6 m)
Longest span90 ft (27.4 m)
Deck width39 ft (12 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,042 (2024)
Projected traffic17,574 by 2044
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 50 E over Post Oak CR built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1990.

What condition is US 50 E over 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 US 50 E over Post Oak CR carry?

About 10,042 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is US 50 E over Post Oak CR?

The structure is 271 ft (82.6 m) long with a longest span of 90 ft (27.4 m) and a deck 39 ft wide.

Who owns US 50 E over Post Oak CR?

It is owned by the State Highway Agency.