US Bridges

Lone Ranch Road over Kettle River

Fair

Ferry County, Washington · 0.04M E of SR21 · Structure no. 080862000000000

Built
1964
61 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
233 ft
3 main spans
Daily traffic
77
2022 count
Owner
County
County Highway Agency

About this bridge

Lone Ranch Road over Kettle River is a steel continuous stringer/multi-beam or girder carrying Lone Ranch Road over Kettle River in Ferry County, Washington. It was built in 1964, so it is 61 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 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 77 vehicles a day, roughly 10% of them trucks, projected to reach 125 by 2042. The structure is 233 ft (71 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLone Ranch Road
CrossesKettle River
Location0.04M E of SR21
RouteCounty Highway 6660
CountyFerry County
StateWashington
Coordinates48.97574, -118.52622
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length233 ft (71 m)
Longest span90 ft (27.4 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77 (2022)
Projected traffic125 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$8.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lone Ranch Road over Kettle River built?

It was built in 1964, making it 61 years old in 2025.

What condition is Lone Ranch 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 June 2024.

How much traffic does Lone Ranch Road over Kettle River carry?

About 77 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Lone Ranch Road over Kettle River?

The structure is 233 ft (71 m) long with a longest span of 90 ft (27.4 m) and a deck 31 ft wide.

Who owns Lone Ranch Road over Kettle River?

It is owned by the County Highway Agency.