US Bridges

I670 WB Highway over US69(7th St) 4 Ramps

Good

Wyandotte County, Kansas · 0.29 MI E Mill St. · Structure no. 999967001052411

Built
1990
35 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,498 ft
15 main spans
Daily traffic
34,400
2023 count
Owner
State
State Highway Agency

About this bridge

I670 WB Highway over US69(7th St) 4 Ramps is a steel continuous stringer/multi-beam or girder carrying I670 WB Highway over US69(7th St) 4 Ramps in Wyandotte County, Kansas. It was built in 1990, so it is 35 years old, younger 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 34,400 vehicles a day, roughly 10% of them trucks, projected to reach 42,814 by 2044. The structure is 1,498 ft (456.7 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI670 WB Highway
CrossesUS69(7th St) 4 Ramps
Location0.29 MI E Mill St.
RouteInterstate 670
StateKansas
Coordinates39.09417, -94.62667
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.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating58.3 US tons
Inventory rating34.9 US tons

Structure

MaterialSteel Continuous
DeckNot applicable
Main spans15
Design loadHS 20 + Mod
Structure length1,498 ft (456.7 m)
Longest span265 ft (80.8 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,400 (2023)
Projected traffic42,814 by 2044
Trucks10%
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 I670 WB Highway over US69(7th St) 4 Ramps built?

It was built in 1990, making it 35 years old in 2025.

What condition is I670 WB Highway over US69(7th St) 4 Ramps 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 July 2023.

How much traffic does I670 WB Highway over US69(7th St) 4 Ramps carry?

About 34,400 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is I670 WB Highway over US69(7th St) 4 Ramps?

The structure is 1,498 ft (456.7 m) long with a longest span of 265 ft (80.8 m) and a deck 59 ft wide.

Who owns I670 WB Highway over US69(7th St) 4 Ramps?

It is owned by the State Highway Agency.