US Bridges

I-635 NB Highway over State Ave

Good

Wyandotte County, Kansas · I-635 · Structure no. 999963501050491

Built
1968
57 years old, rebuilt 2013
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
232 ft
3 main spans
Daily traffic
29,740
2023 count
Owner
State
State Highway Agency

About this bridge

I-635 NB Highway over State Ave is a steel continuous stringer/multi-beam or girder carrying I-635 NB Highway over State Ave in Wyandotte County, Kansas. It was built in 1968 and reconstructed in 2013, so it is 57 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 29,740 vehicles a day, roughly 10% of them trucks, projected to reach 32,860 by 2044. The structure is 232 ft (70.7 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-635 NB Highway
CrossesState Ave
LocationI-635
RouteInterstate 635
CountyWyandotte County
StateKansas
Coordinates39.11667, -94.68139
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length232 ft (70.7 m)
Longest span92 ft (28 m)
Deck width69 ft (20.9 m)
Roadway width66 ft (20.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,740 (2023)
Projected traffic32,860 by 2044
Trucks10%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-635 NB Highway over State Ave built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2013.

What condition is I-635 NB Highway over State Ave in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does I-635 NB Highway over State Ave carry?

About 29,740 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is I-635 NB Highway over State Ave?

The structure is 232 ft (70.7 m) long with a longest span of 92 ft (28 m) and a deck 69 ft wide.

Who owns I-635 NB Highway over State Ave?

It is owned by the State Highway Agency.