US Bridges

K-30 HWY over Mill Creek Drainage

Good

Wabaunsee County, Kansas · 0.28 MI N I70/K30 JCT · Structure no. 999903000990881

Built
1995
30 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
1,077
2023 count
Owner
State
State Highway Agency

About this bridge

K-30 HWY over Mill Creek Drainage is a concrete culvert carrying K-30 HWY over Mill Creek Drainage in Wabaunsee County, Kansas. It was built in 1995, so it is 30 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 1,077 vehicles a day, roughly 7% of them trucks, projected to reach 1,238 by 2044. The structure is 31 ft (9.3 m) long and 91 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesK-30 HWY
CrossesMill Creek Drainage
Location0.28 MI N I70/K30 JCT
RouteState Highway 30
StateKansas
Coordinates39.06278, -96.03944
Functional classRural Major Collector

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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating81 US tons
Inventory rating49.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length31 ft (9.3 m)
Longest span14 ft (4.3 m)
Deck width91 ft (27.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,077 (2023)
Projected traffic1,238 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

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 K-30 HWY over Mill Creek Drainage built?

It was built in 1995, making it 30 years old in 2025.

What condition is K-30 HWY 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 June 2024.

How much traffic does K-30 HWY over Mill Creek Drainage carry?

About 1,077 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is K-30 HWY over Mill Creek Drainage?

The structure is 31 ft (9.3 m) long with a longest span of 14 ft (4.3 m) and a deck 91 ft wide.

Who owns K-30 HWY over Mill Creek Drainage?

It is owned by the State Highway Agency.