US Bridges

K-99 HWY over Rock CR & Pdstrn Pass

Good

Pottawatomie County, Kansas · 13.66 MI N US-24 HWY · Structure no. 999909900750561

Built
2005
20 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
205 ft
3 main spans
Daily traffic
1,272
2023 count
Owner
State
State Highway Agency

About this bridge

K-99 HWY over Rock CR & Pdstrn Pass is a steel continuous stringer/multi-beam or girder carrying K-99 HWY over Rock CR & Pdstrn Pass 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 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 1,272 vehicles a day, roughly 15% of them trucks, projected to reach 1,492 by 2044. The structure is 205 ft (62.5 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesK-99 HWY
CrossesRock CR & Pdstrn Pass
Location13.66 MI N US-24 HWY
RouteState Highway 99
StateKansas
Coordinates39.38417, -96.40667
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

MaterialSteel Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length205 ft (62.5 m)
Longest span94 ft (28.5 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,272 (2023)
Projected traffic1,492 by 2044
Trucks15%
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 K-99 HWY over Rock CR & Pdstrn Pass built?

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

What condition is K-99 HWY over Rock CR & Pdstrn Pass 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 CR & Pdstrn Pass carry?

About 1,272 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is K-99 HWY over Rock CR & Pdstrn Pass?

The structure is 205 ft (62.5 m) long with a longest span of 94 ft (28.5 m) and a deck 42 ft wide.

Who owns K-99 HWY over Rock CR & Pdstrn Pass?

It is owned by the State Highway Agency.