US Bridges

CO RD NE 1050 over Blackwater Rvr

Fair

Johnson County, Missouri · S 36 T 48 N R 24 W · Structure no. 18386

Built
1900
125 years old, rebuilt 1986
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
252 ft
3 main spans
Daily traffic
145
2023 count
Owner
County
County Highway Agency

About this bridge

CO RD NE 1050 over Blackwater Rvr is a prestressed concrete stringer/multi-beam or girder carrying CO RD NE 1050 over Blackwater Rvr 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 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 145 vehicles a day, roughly 10% of them trucks, projected to reach 232 by 2043. The structure is 252 ft (76.8 m) long and 26 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesCO RD NE 1050
CrossesBlackwater Rvr
LocationS 36 T 48 N R 24 W
RouteCounty Highway 184
CountyJohnson County
StateMissouri
Coordinates38.91064, -93.50751
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating24.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length252 ft (76.8 m)
Longest span100 ft (30.5 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic145 (2023)
Projected traffic232 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD NE 1050 over Blackwater Rvr built?

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

What condition is CO RD NE 1050 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 November 2024.

How much traffic does CO RD NE 1050 over Blackwater Rvr carry?

About 145 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is CO RD NE 1050 over Blackwater Rvr?

The structure is 252 ft (76.8 m) long with a longest span of 100 ft (30.5 m) and a deck 26 ft wide.

Who owns CO RD NE 1050 over Blackwater Rvr?

It is owned by the County Highway Agency.