US Bridges

I-70 WB HWY (kta over Rock Quarry Access Road

Fair

Wyandotte County, Kansas · 0.45 Miles W I-635 SB · Structure no. 999907001051583

Built
1971
54 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
162 ft
3 main spans
Daily traffic
44,750
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-70 WB HWY (kta over Rock Quarry Access Road is a concrete continuous slab carrying I-70 WB HWY (kta over Rock Quarry Access Road in Wyandotte County, Kansas. It was built in 1971, 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 44,750 vehicles a day, roughly 8% of them trucks, projected to reach 57,940 by 2044. The structure is 162 ft (49.5 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-70 WB HWY (kta
CrossesRock Quarry Access Road
Location0.45 Miles W I-635 SB
RouteInterstate 70
CountyWyandotte County
StateKansas
Coordinates39.10528, -94.6875
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.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 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 width58 ft (17.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,750 (2023)
Projected traffic57,940 by 2044
Trucks8%
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 Toll Authority
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-70 WB HWY (kta over Rock Quarry Access Road built?

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

What condition is I-70 WB HWY (kta over Rock Quarry Access Road 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-70 WB HWY (kta over Rock Quarry Access Road carry?

About 44,750 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is I-70 WB HWY (kta over Rock Quarry Access Road?

The structure is 162 ft (49.5 m) long with a longest span of 64 ft (19.5 m) and a deck 58 ft wide.

Who owns I-70 WB HWY (kta over Rock Quarry Access Road?

It is owned by the State Toll Authority and maintained by the State Highway Agency.