US Bridges

Rs 359 NW 170 Ave over Silver Creek

Fair

Kingman County, Kansas · 5.5N of Cunningham · Structure no. 000000000480240

Built
1981
44 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
110 ft
4 main spans
Daily traffic
450
2021 count
Owner
County
County Highway Agency

About this bridge

Rs 359 NW 170 Ave over Silver Creek is a steel stringer/multi-beam or girder carrying Rs 359 NW 170 Ave over Silver Creek in Kingman County, Kansas. It was built in 1981, so it is 44 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.

It carries about 450 vehicles a day, roughly 10% of them trucks, projected to reach 505 by 2043. The structure is 110 ft (33.5 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRs 359 NW 170 Ave
CrossesSilver Creek
Location5.5N of Cunningham
RouteCounty Highway 359
CountyKingman County
StateKansas
Coordinates37.72554, -98.42847
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating76.2 US tons
Inventory rating45.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length110 ft (33.5 m)
Longest span27 ft (8.3 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic450 (2021)
Projected traffic505 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 359 NW 170 Ave over Silver Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Rs 359 NW 170 Ave over Silver 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 January 2023.

How much traffic does Rs 359 NW 170 Ave over Silver Creek carry?

About 450 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Rs 359 NW 170 Ave over Silver Creek?

The structure is 110 ft (33.5 m) long with a longest span of 27 ft (8.3 m) and a deck 29 ft wide.

Who owns Rs 359 NW 170 Ave over Silver Creek?

It is owned by the County Highway Agency.