US Bridges

Minor N.6-21.9 over Kitten Creek

FairPosted for load

Riley County, Kansas · 1.8N of Keats · Structure no. 000810887604029

Built
1987
38 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
10
2004 count
Owner
County
County Highway Agency

About this bridge

Minor N.6-21.9 over Kitten Creek is a steel stringer/multi-beam or girder carrying Minor N.6-21.9 over Kitten Creek in Riley County, Kansas. It was built in 1987, so it is 38 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 10 by 2044. The structure is 45 ft (13.7 m) long and 17 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesMinor N.6-21.9
CrossesKitten Creek
Location1.8N of Keats
RouteCounty Highway 8111
CountyRiley County
StateKansas
Coordinates39.24833, -96.70959
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating35.5 US tons
Inventory rating21.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span43 ft (13.1 m)
Deck width17 ft (5.2 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2004)
Projected traffic10 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$175,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Minor N.6-21.9 over Kitten Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Minor N.6-21.9 over Kitten Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.

How much traffic does Minor N.6-21.9 over Kitten Creek carry?

About 10 vehicles per day (2004 count).

How long is Minor N.6-21.9 over Kitten Creek?

The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13.1 m) and a deck 17 ft wide.

Who owns Minor N.6-21.9 over Kitten Creek?

It is owned by the County Highway Agency.