US Bridges

I70 HWY Nl-Sl over Mill Creek Drainage

Good

Wabaunsee County, Kansas · 1.31 MI E K138 · Structure no. 999907000990221

Built
1941
84 years old, rebuilt 1962
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
10,761
2023 count
Owner
State
State Highway Agency

About this bridge

I70 HWY Nl-Sl over Mill Creek Drainage is a concrete culvert carrying I70 HWY Nl-Sl over Mill Creek Drainage in Wabaunsee County, Kansas. It was built in 1941 and reconstructed in 1962, so it is 84 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 10,761 vehicles a day, roughly 16% of them trucks, projected to reach 13,660 by 2044. The structure is 21 ft (6.4 m) long and 153 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI70 HWY Nl-Sl
CrossesMill Creek Drainage
Location1.31 MI E K138
RouteInterstate 70
CountyWabaunsee County
StateKansas
Coordinates39.05806, -96.165
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating12.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width153 ft (46.7 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,761 (2023)
Projected traffic13,660 by 2044
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 I70 HWY Nl-Sl over Mill Creek Drainage built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1962.

What condition is I70 HWY Nl-Sl over Mill Creek Drainage 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 May 2023.

How much traffic does I70 HWY Nl-Sl over Mill Creek Drainage carry?

About 10,761 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is I70 HWY Nl-Sl over Mill Creek Drainage?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 153 ft wide.

Who owns I70 HWY Nl-Sl over Mill Creek Drainage?

It is owned by the State Highway Agency.