US Bridges

I-635 Nto I-70 W over I-635 SB Highway

Fair

Wyandotte County, Kansas · I-635 / I-70 Interchange · Structure no. 999963501053021

Built
2004
21 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
370 ft
3 main spans
Daily traffic
8,200
2023 count
Owner
State
State Highway Agency

About this bridge

I-635 Nto I-70 W over I-635 SB Highway is a steel continuous stringer/multi-beam or girder carrying I-635 Nto I-70 W over I-635 SB Highway in Wyandotte County, Kansas. It was built in 2004, so it is 21 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 8,200 vehicles a day. The structure is 370 ft (112.8 m) long and 32 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-635 Nto I-70 W
CrossesI-635 SB Highway
LocationI-635 / I-70 Interchange
RouteState Highway 21
CountyWyandotte County
StateKansas
Coordinates39.10556, -94.68083
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating76.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length370 ft (112.8 m)
Longest span151 ft (46 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck63 ft (19.2 m)

Traffic and service

Average daily traffic8,200 (2023)
Projected traffic—
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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 Nto I-70 W over I-635 SB Highway built?

It was built in 2004, making it 21 years old in 2025.

What condition is I-635 Nto I-70 W over I-635 SB Highway 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 June 2023.

How much traffic does I-635 Nto I-70 W over I-635 SB Highway carry?

About 8,200 vehicles per day (2023 count).

How long is I-635 Nto I-70 W over I-635 SB Highway?

The structure is 370 ft (112.8 m) long with a longest span of 151 ft (46 m) and a deck 32 ft wide.

Who owns I-635 Nto I-70 W over I-635 SB Highway?

It is owned by the State Highway Agency.