US Bridges

County Road over Eltopia Branch Canal

FairPosted for load

Franklin County, Washington · 1.1 S Ironwood 636 · Structure no. 083234000000000

Built
1965
60 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
46 ft
2 main spans
Daily traffic
272
2023 count
Owner
County
County Highway Agency

About this bridge

County Road over Eltopia Branch Canal is a wood or timber stringer/multi-beam or girder carrying County Road over Eltopia Branch Canal in Franklin County, Washington. It was built in 1965, so it is 60 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. Its operating status is: posted for load restriction.

It carries about 272 vehicles a day, roughly 40% of them trucks, projected to reach 510 by 2040. The structure is 46 ft (14 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Road
CrossesEltopia Branch Canal
Location1.1 S Ironwood 636
RouteCounty Highway 6150
CountyFranklin County
StateWashington
Coordinates46.50191, -119.11098
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating16.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 15
Structure length46 ft (14 m)
Longest span24 ft (7.3 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic272 (2023)
Projected traffic510 by 2040
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Eltopia Branch Canal built?

It was built in 1965, making it 60 years old in 2025.

What condition is County Road over Eltopia Branch Canal 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 November 2023.

How much traffic does County Road over Eltopia Branch Canal carry?

About 272 vehicles per day (2023 count), of which roughly 40% are trucks.

How long is County Road over Eltopia Branch Canal?

The structure is 46 ft (14 m) long with a longest span of 24 ft (7.3 m) and a deck 25 ft wide.

Who owns County Road over Eltopia Branch Canal?

It is owned by the County Highway Agency.