US Bridges

Is 435 N over Prairie CR

Fair

Platte County, Missouri · S 7 T 52 N R 34 W · Structure no. 2821

Built
1984
41 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
187 ft
3 main spans
Daily traffic
7,800
2024 count
Owner
State
State Highway Agency

About this bridge

Is 435 N over Prairie CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Is 435 N over Prairie CR in Platte County, Missouri. It was built in 1984, so it is 41 years old, younger 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 7,800 vehicles a day, roughly 17% of them trucks, projected to reach 15,990 by 2044. The structure is 187 ft (57 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIs 435 N
CrossesPrairie CR
LocationS 7 T 52 N R 34 W
RouteInterstate 435
Coordinates39.33099, -94.75403
Functional classUrban Principal Arterial - Interstate

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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.3 US tons
Inventory rating46.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length187 ft (57 m)
Longest span63 ft (19.1 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,800 (2024)
Projected traffic15,990 by 2044
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Is 435 N over Prairie CR built?

It was built in 1984, making it 41 years old in 2025.

What condition is Is 435 N over Prairie 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 October 2024.

How much traffic does Is 435 N over Prairie CR carry?

About 7,800 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is Is 435 N over Prairie CR?

The structure is 187 ft (57 m) long with a longest span of 63 ft (19.1 m) and a deck 41 ft wide.

Who owns Is 435 N over Prairie CR?

It is owned by the State Highway Agency.