US Bridges

Plattsburg RD over Br of Camp CR

FairPosted for load

Clay County, Missouri · S 6 T 53 N R 31 W · Structure no. 13575

Built
1970
55 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
690
2024 count
Owner
County
County Highway Agency

About this bridge

Plattsburg RD over Br of Camp CR is a concrete slab carrying Plattsburg RD over Br of Camp CR in Clay County, Missouri. It was built in 1970, so it is 55 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. Its operating status is: posted for load restriction.

It carries about 690 vehicles a day, roughly 10% of them trucks, projected to reach 1,070 by 2044. The structure is 24 ft (7.3 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesPlattsburg RD
CrossesBr of Camp CR
LocationS 6 T 53 N R 31 W
RouteCounty Highway 42
CountyClay County
StateMissouri
Coordinates39.43265, -94.42116
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.7 US tons
Inventory rating8.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic690 (2024)
Projected traffic1,070 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$379,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Plattsburg RD over Br of Camp CR built?

It was built in 1970, making it 55 years old in 2025.

What condition is Plattsburg RD over Br of Camp 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 January 2024.

How much traffic does Plattsburg RD over Br of Camp CR carry?

About 690 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Plattsburg RD over Br of Camp CR?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 20 ft wide.

Who owns Plattsburg RD over Br of Camp CR?

It is owned by the County Highway Agency.