US Bridges

SW Prairie Ridg RD over Br of Crooked Rvr

FairPosted for load

Caldwell County, Missouri · S 34 T 55 N R 29 W · Structure no. 23907

Built
1955
70 years old, rebuilt 1983
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

SW Prairie Ridg RD over Br of Crooked Rvr is a steel stringer/multi-beam or girder carrying SW Prairie Ridg RD over Br of Crooked Rvr in Caldwell County, Missouri. It was built in 1955 and reconstructed in 1983, so it is 70 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 23 by 2044. The structure is 30 ft (9.1 m) long and 14 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSW Prairie Ridg RD
CrossesBr of Crooked Rvr
LocationS 34 T 55 N R 29 W
RouteCounty Highway 442
CountyCaldwell County
StateMissouri
Coordinates39.53039, -94.13426
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadOther
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic23 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SW Prairie Ridg RD over Br of Crooked Rvr built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1983.

What condition is SW Prairie Ridg RD over Br of Crooked 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 October 2023.

How much traffic does SW Prairie Ridg RD over Br of Crooked Rvr carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SW Prairie Ridg RD over Br of Crooked Rvr?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 14 ft wide.

Who owns SW Prairie Ridg RD over Br of Crooked Rvr?

It is owned by the County Highway Agency.