US Bridges

County Road over Potholes East Canal

Good

Franklin County, Washington · 0.52N JCT R 600 · Structure no. 079688000000000

Built
1957
68 years old
Condition
Good
inspected November 2022
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
71 ft
3 main spans
Daily traffic
88
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 1957, so it is 68 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 88 vehicles a day, roughly 39% of them trucks, projected to reach 260 by 2042. The structure is 71 ft (21.6 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
Location0.52N JCT R 600
RouteCounty Highway 5250
CountyFranklin County
StateWashington
Coordinates46.46723, -119.13204
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating29.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 15
Structure length71 ft (21.6 m)
Longest span26 ft (7.9 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88 (2022)
Projected traffic260 by 2042
Trucks39%
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$2.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Potholes East Canal built?

It was built in 1957, making it 68 years old in 2025.

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 2022.

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

About 88 vehicles per day (2022 count), of which roughly 39% are trucks.

How long is County Road over Potholes East Canal?

The structure is 71 ft (21.6 m) long with a longest span of 26 ft (7.9 m) and a deck 25 ft wide.

Who owns County Road over Potholes East Canal?

It is owned by the County Highway Agency.