US Bridges

K-99 HWY over Rock Creek Drainage

Good

Pottawatomie County, Kansas · 0.12 MI N State (westmorl · Structure no. 999909900750571

Built
2005
20 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
877
2023 count
Owner
State
State Highway Agency

About this bridge

K-99 HWY over Rock Creek Drainage is a concrete continuous slab carrying K-99 HWY over Rock Creek Drainage in Pottawatomie County, Kansas. It was built in 2005, so it is 20 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 877 vehicles a day, roughly 20% of them trucks, projected to reach 913 by 2044. The structure is 101 ft (30.8 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesK-99 HWY
CrossesRock Creek Drainage
Location0.12 MI N State (westmorl
RouteState Highway 99
StateKansas
Coordinates39.39361, -96.4075
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 inspectionMay 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 geometry8: Equal to present desirable 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 rating95 US tons
Inventory rating57 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length101 ft (30.8 m)
Longest span39 ft (12 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic877 (2023)
Projected traffic913 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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-99 HWY over Rock Creek Drainage built?

It was built in 2005, making it 20 years old in 2025.

What condition is K-99 HWY over Rock 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 K-99 HWY over Rock Creek Drainage carry?

About 877 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is K-99 HWY over Rock Creek Drainage?

The structure is 101 ft (30.8 m) long with a longest span of 39 ft (12 m) and a deck 42 ft wide.

Who owns K-99 HWY over Rock Creek Drainage?

It is owned by the State Highway Agency.