US Bridges

I-70 HWY EB (kta) over Ninemile Creek

Good

Leavenworth County, Kansas · 4.35 MI E K-32 · Structure no. 999907000520343

Built
1956
69 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
184 ft
3 main spans
Daily traffic
17,657
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-70 HWY EB (kta) over Ninemile Creek is a steel continuous stringer/multi-beam or girder carrying I-70 HWY EB (kta) over Ninemile Creek in Leavenworth County, Kansas. It was built in 1956, so it is 69 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 17,657 vehicles a day, roughly 19% of them trucks, projected to reach 22,862 by 2044. The structure is 184 ft (56.2 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-70 HWY EB (kta)
CrossesNinemile Creek
Location4.35 MI E K-32
RouteInterstate 70
CountyLeavenworth County
StateKansas
Coordinates39.03417, -95.11
Functional classRural 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating91.4 US tons
Inventory rating51.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length184 ft (56.2 m)
Longest span70 ft (21.3 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,657 (2023)
Projected traffic22,862 by 2044
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 HWY EB (kta) over Ninemile Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is I-70 HWY EB (kta) over Ninemile Creek 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 2024.

How much traffic does I-70 HWY EB (kta) over Ninemile Creek carry?

About 17,657 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is I-70 HWY EB (kta) over Ninemile Creek?

The structure is 184 ft (56.2 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.

Who owns I-70 HWY EB (kta) over Ninemile Creek?

It is owned by the State Toll Authority.