US Bridges

US 50 E over Trib Blackwater Rv

Fair

Johnson County, Missouri · S 14 T 46 N R 27 W · Structure no. 8518

Built
1924
101 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
17,553
2024 count
Owner
State
State Highway Agency

About this bridge

US 50 E over Trib Blackwater Rv is a concrete culvert carrying US 50 E over Trib Blackwater Rv in Johnson County, Missouri. It was built in 1924, 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 17,553 vehicles a day, roughly 11% of them trucks, projected to reach 30,718 by 2044. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS 50 E
CrossesTrib Blackwater Rv
LocationS 14 T 46 N R 27 W
RouteU.S. Route 50
CountyJohnson County
StateMissouri
Coordinates38.78381, -93.86351
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating15.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length24 ft (7.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,553 (2024)
Projected traffic30,718 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$306,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 50 E over Trib Blackwater Rv built?

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

What condition is US 50 E over Trib Blackwater Rv 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 Trib Blackwater Rv carry?

About 17,553 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is US 50 E over Trib Blackwater Rv?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m).

Who owns US 50 E over Trib Blackwater Rv?

It is owned by the State Highway Agency.