US Bridges

K99 HWY over Willow Creek

Good

Greenwood County, Kansas · 8.80 MI S K-58 · Structure no. 999909900370741

Built
2004
21 years old, rebuilt 2021
Condition
Good
inspected February 2023
Type
Slab
Prestressed Concrete Continuous
Length
236 ft
3 main spans
Daily traffic
995
2023 count
Owner
State
State Highway Agency

About this bridge

K99 HWY over Willow Creek is a prestressed concrete continuous slab carrying K99 HWY over Willow Creek in Greenwood County, Kansas. It was built in 2004 and reconstructed in 2021, so it is 21 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 995 vehicles a day, roughly 24% of them trucks, projected to reach 1,214 by 2044. The structure is 236 ft (71.9 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesK99 HWY
CrossesWillow Creek
Location8.80 MI S K-58
RouteState Highway 99
CountyGreenwood County
StateKansas
Coordinates38.01472, -96.14583
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than 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 rating72.8 US tons
Inventory rating41.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length236 ft (71.9 m)
Longest span92 ft (28 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic995 (2023)
Projected traffic1,214 by 2044
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 K99 HWY over Willow Creek built?

It was built in 2004, making it 21 years old in 2025. It was reconstructed in 2021.

What condition is K99 HWY over Willow 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 February 2023.

How much traffic does K99 HWY over Willow Creek carry?

About 995 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is K99 HWY over Willow Creek?

The structure is 236 ft (71.9 m) long with a longest span of 92 ft (28 m) and a deck 38 ft wide.

Who owns K99 HWY over Willow Creek?

It is owned by the State Highway Agency.