US Bridges

I-635 NB Highway over Douglas Avenue

Fair

Wyandotte County, Kansas · 1.87 Miles N I-35 · Structure no. 999963501050351

Built
1971
54 years old, rebuilt 2020
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
162 ft
3 main spans
Daily traffic
34,697
2023 count
Owner
State
State Highway Agency

About this bridge

I-635 NB Highway over Douglas Avenue is a concrete continuous slab carrying I-635 NB Highway over Douglas Avenue in Wyandotte County, Kansas. It was built in 1971 and reconstructed in 2020, so it is 54 years old, older 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 34,697 vehicles a day, roughly 9% of them trucks, projected to reach 37,581 by 2044. The structure is 162 ft (49.5 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-635 NB Highway
CrossesDouglas Avenue
Location1.87 Miles N I-35
RouteInterstate 635
CountyWyandotte County
StateKansas
Coordinates39.06583, -94.67917
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
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 rating75.9 US tons
Inventory rating46 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length162 ft (49.5 m)
Longest span64 ft (19.5 m)
Deck width64 ft (19.6 m)
Roadway width62 ft (18.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,697 (2023)
Projected traffic37,581 by 2044
Trucks9%
Lanes on structure3
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 Douglas Avenue built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2020.

What condition is I-635 NB Highway over Douglas Avenue 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 NB Highway over Douglas Avenue carry?

About 34,697 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I-635 NB Highway over Douglas Avenue?

The structure is 162 ft (49.5 m) long with a longest span of 64 ft (19.5 m) and a deck 64 ft wide.

Who owns I-635 NB Highway over Douglas Avenue?

It is owned by the State Highway Agency.