US Bridges

US 50 E over Blackwater Rvr

Fair

Johnson County, Missouri · S 19 T 47 N R 28 W · Structure no. 1003

Built
1965
60 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
99 ft
3 main spans
Daily traffic
9,903
2024 count
Owner
State
State Highway Agency

About this bridge

US 50 E over Blackwater Rvr is a concrete continuous slab carrying US 50 E over Blackwater Rvr in Johnson County, Missouri. It was built in 1965, so it is 60 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 9,903 vehicles a day, roughly 18% of them trucks, projected to reach 17,330 by 2044. The structure is 99 ft (30.2 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 50 E
CrossesBlackwater Rvr
LocationS 19 T 47 N R 28 W
RouteU.S. Route 50
Coordinates38.86673, -94.05602
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating28.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length99 ft (30.2 m)
Longest span37 ft (11.3 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,903 (2024)
Projected traffic17,330 by 2044
Trucks18%
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 Blackwater Rvr built?

It was built in 1965, making it 60 years old in 2025.

What condition is US 50 E over Blackwater Rvr 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 Blackwater Rvr carry?

About 9,903 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is US 50 E over Blackwater Rvr?

The structure is 99 ft (30.2 m) long with a longest span of 37 ft (11.3 m) and a deck 34 ft wide.

Who owns US 50 E over Blackwater Rvr?

It is owned by the State Highway Agency.