US Bridges

I-435 Southbound over Missouri River

Fair

Wyandotte County, Kansas · 1.84 MI NE of K5 · Structure no. 999943501052351

Built
1984
41 years old
Condition
Fair
inspected August 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
3,281 ft
5 main spans
Daily traffic
19,350
2023 count
Owner
State
State Highway Agency

About this bridge

I-435 Southbound over Missouri River is a steel continuous girder and floorbeam system carrying I-435 Southbound over Missouri River in Wyandotte County, Kansas. It was built in 1984, so it is 41 years old, younger than the Kansas average of 52.8 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 19,350 vehicles a day, roughly 10% of them trucks, projected to reach 26,580 by 2044. The structure is 3,281 ft (1,000 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-435 Southbound
CrossesMissouri River
Location1.84 MI NE of K5
RouteInterstate 435
CountyWyandotte County
StateKansas
Coordinates39.19167, -94.77028
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.9 US tons
Inventory rating43 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5 (+4 approach)
Design loadHS 20 + Mod
Structure length3,281 ft (1,000 m)
Longest span425 ft (129.5 m)
Deck width58 ft (17.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,350 (2023)
Projected traffic26,580 by 2044
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I-435 Southbound over Missouri River built?

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

What condition is I-435 Southbound over Missouri River 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 August 2024.

How much traffic does I-435 Southbound over Missouri River carry?

About 19,350 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is I-435 Southbound over Missouri River?

The structure is 3,281 ft (1,000 m) long with a longest span of 425 ft (129.5 m) and a deck 58 ft wide.

Who owns I-435 Southbound over Missouri River?

It is owned by the State Highway Agency.