US Bridges

US 50 W over Robinson Br

Fair

Johnson County, Missouri · S 22 T 47 N R 29 W · Structure no. 4672

Built
1922
103 years old, rebuilt 1951
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
8,106
2024 count
Owner
State
State Highway Agency

About this bridge

US 50 W over Robinson Br is a concrete continuous culvert carrying US 50 W over Robinson Br in Johnson County, Missouri. It was built in 1922 and reconstructed in 1951, so it is 103 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 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 8,106 vehicles a day, roughly 11% of them trucks, projected to reach 14,186 by 2044. The structure is 28 ft (8.4 m) long and 48 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS 50 W
CrossesRobinson Br
LocationS 22 T 47 N R 29 W
RouteU.S. Route 50
CountyJohnson County
StateMissouri
Coordinates38.86945, -94.10228
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length28 ft (8.4 m)
Longest span12 ft (3.7 m)
Deck width48 ft (14.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,106 (2024)
Projected traffic14,186 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 W over Robinson Br built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1951.

What condition is US 50 W over Robinson Br 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 W over Robinson Br carry?

About 8,106 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is US 50 W over Robinson Br?

The structure is 28 ft (8.4 m) long with a longest span of 12 ft (3.7 m) and a deck 48 ft wide.

Who owns US 50 W over Robinson Br?

It is owned by the State Highway Agency.