US Bridges

SW 60 A. N.0-20.2 over Chikaskia River

FairPosted for load

Kingman County, Kansas · 0.8N 3.0E of Zenda · Structure no. 000480723006502

Built
1970
55 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
110 ft
4 main spans
Daily traffic
10
2021 count
Owner
County
County Highway Agency

About this bridge

SW 60 A. N.0-20.2 over Chikaskia River is a wood or timber stringer/multi-beam or girder carrying SW 60 A. N.0-20.2 over Chikaskia River in Kingman County, Kansas. It was built in 1970, so it is 55 years old, older 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 5 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, roughly 3% of them trucks, projected to reach 12 by 2043. The structure is 110 ft (33.5 m) long and 23 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSW 60 A. N.0-20.2
CrossesChikaskia River
Location0.8N 3.0E of Zenda
RouteCounty Highway 0
StateKansas
Coordinates37.45386, -98.22697
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating15.5 US tons
Inventory rating7.8 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length110 ft (33.5 m)
Longest span26 ft (7.8 m)
Deck width23 ft (7 m)
Roadway width23 ft (7 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2021)
Projected traffic12 by 2043
Trucks3%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$490,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 60 A. N.0-20.2 over Chikaskia River built?

It was built in 1970, making it 55 years old in 2025.

What condition is SW 60 A. N.0-20.2 over Chikaskia River 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 January 2023.

How much traffic does SW 60 A. N.0-20.2 over Chikaskia River carry?

About 10 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is SW 60 A. N.0-20.2 over Chikaskia River?

The structure is 110 ft (33.5 m) long with a longest span of 26 ft (7.8 m) and a deck 23 ft wide.

Who owns SW 60 A. N.0-20.2 over Chikaskia River?

It is owned by the County Highway Agency.