US Bridges

W Kettle Riv Road over Kettle River

Fair

Ferry County, Washington · 09.5 N/W SR 21 · Structure no. 083710000000000

Built
1950
75 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
213 ft
3 main spans
Daily traffic
235
2019 count
Owner
County
County Highway Agency

About this bridge

W Kettle Riv Road over Kettle River is a steel continuous stringer/multi-beam or girder carrying W Kettle Riv Road over Kettle River in Ferry County, Washington. It was built in 1950, so it is 75 years old, older than the Washington average of 49.8 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.

It carries about 235 vehicles a day, roughly 15% of them trucks, projected to reach 350 by 2039. The structure is 213 ft (64.9 m) long and 22 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesW Kettle Riv Road
CrossesKettle River
Location09.5 N/W SR 21
RouteCounty Highway 5010
CountyFerry County
StateWashington
Coordinates48.93805, -118.75134
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.4 US tons
Inventory rating19.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length213 ft (64.9 m)
Longest span120 ft (36.6 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic235 (2019)
Projected traffic350 by 2039
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$8.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was W Kettle Riv Road over Kettle River built?

It was built in 1950, making it 75 years old in 2025.

What condition is W Kettle Riv Road over Kettle 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 July 2023.

How much traffic does W Kettle Riv Road over Kettle River carry?

About 235 vehicles per day (2019 count), of which roughly 15% are trucks.

How long is W Kettle Riv Road over Kettle River?

The structure is 213 ft (64.9 m) long with a longest span of 120 ft (36.6 m) and a deck 22 ft wide.

Who owns W Kettle Riv Road over Kettle River?

It is owned by the County Highway Agency.