US Bridges

County RD 150 over Walnut CR

FairPosted for load

Cedar County, Missouri · S 22 T 36 N R 28 W · Structure no. 12482

Built
1910
115 years old, rebuilt 1986
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 150 over Walnut CR is a steel stringer/multi-beam or girder carrying County RD 150 over Walnut CR in Cedar County, Missouri. It was built in 1910 and reconstructed in 1986, so it is 115 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. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, roughly 10% of them trucks, projected to reach 250 by 2043. The structure is 48 ft (14.6 m) long and 25 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCounty RD 150
CrossesWalnut CR
LocationS 22 T 36 N R 28 W
RouteCounty Highway 11
CountyCedar County
StateMissouri
Coordinates37.877, -94.00276
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.8 US tons
Inventory rating13.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length48 ft (14.6 m)
Longest span46 ft (14 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic250 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 150 over Walnut CR built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1986.

What condition is County RD 150 over Walnut 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 County RD 150 over Walnut CR carry?

About 200 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 150 over Walnut CR?

The structure is 48 ft (14.6 m) long with a longest span of 46 ft (14 m) and a deck 25 ft wide.

Who owns County RD 150 over Walnut CR?

It is owned by the County Highway Agency.