US Bridges

County Road over Potholes East Canal

Good

Franklin County, Washington · 0.77W Sagemoor 908 · Structure no. 079675000000000

Built
1953
72 years old, rebuilt 1993
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
32 ft
1 main span
Daily traffic
313
2023 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 1953 and reconstructed in 1993, so it is 72 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 313 vehicles a day, roughly 26% of them trucks, projected to reach 650 by 2043. The structure is 32 ft (9.8 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Road
CrossesPotholes East Canal
Location0.77W Sagemoor 908
RouteCounty Highway 9350
CountyFranklin County
StateWashington
Coordinates46.38779, -119.24184
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating66 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width26 ft (8 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic313 (2023)
Projected traffic650 by 2043
Trucks26%
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$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Potholes East Canal built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1993.

What condition is County Road over Potholes East Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

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

About 313 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is County Road over Potholes East Canal?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 26 ft wide.

Who owns County Road over Potholes East Canal?

It is owned by the County Highway Agency.