US Bridges

County Road over Potholes East Canal

FairPosted for load

Franklin County, Washington · 2.67 W Glade N 901 · Structure no. 082107000000000

Built
1958
67 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
28 ft
1 main span
Daily traffic
165
2022 count
Owner
County
County Highway Agency

About this bridge

County Road over Potholes East Canal is a wood or timber stringer/multi-beam or girder carrying County Road over Potholes East Canal in Franklin County, Washington. It was built in 1958, so it is 67 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 165 vehicles a day, roughly 40% of them trucks, projected to reach 260 by 2042. The structure is 28 ft (8.5 m) long and 25 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesCounty Road
CrossesPotholes East Canal
Location2.67 W Glade N 901
RouteCounty Highway 6360
CountyFranklin County
StateWashington
Coordinates46.51964, -119.18758
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 protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.2 US tons
Inventory rating19 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length28 ft (8.5 m)
Longest span27 ft (8.2 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic165 (2022)
Projected traffic260 by 2042
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Potholes East Canal built?

It was built in 1958, making it 67 years old in 2025.

What condition is County Road over Potholes East 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 December 2022.

How much traffic does County Road over Potholes East Canal carry?

About 165 vehicles per day (2022 count), of which roughly 40% are trucks.

How long is County Road over Potholes East Canal?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 25 ft wide.

Who owns County Road over Potholes East Canal?

It is owned by the County Highway Agency.