US Bridges

K99 HWY over Kansas River Drainage

Good

Pottawatomie County, Kansas · 0.02 MI N US24 · Structure no. 999909900750321

Built
1934
91 years old, rebuilt 1997
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
2,493
2023 count
Owner
State
State Highway Agency

About this bridge

K99 HWY over Kansas River Drainage is a concrete culvert carrying K99 HWY over Kansas River Drainage in Pottawatomie County, Kansas. It was built in 1934 and reconstructed in 1997, so it is 91 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 2,493 vehicles a day, roughly 8% of them trucks, projected to reach 2,810 by 2044. The structure is 25 ft (7.6 m) long and 109 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

CarriesK99 HWY
CrossesKansas River Drainage
Location0.02 MI N US24
RouteState Highway 99
StateKansas
Coordinates39.21028, -96.30528
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width109 ft (33.3 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,493 (2023)
Projected traffic2,810 by 2044
Trucks8%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.9 mi (69 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 Kansas River Drainage built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1997.

What condition is K99 HWY over Kansas River 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 K99 HWY over Kansas River Drainage carry?

About 2,493 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is K99 HWY over Kansas River Drainage?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 109 ft wide.

Who owns K99 HWY over Kansas River Drainage?

It is owned by the State Highway Agency.