US Bridges

County Arterial over Potholes East Canal

GoodPosted for load

Franklin County, Washington · 0.80 E JCT 522 · Structure no. 083806000000000

Built
1954
71 years old, rebuilt 1967
Condition
Good
inspected November 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
943
2022 count
Owner
County
County Highway Agency

About this bridge

County Arterial over Potholes East Canal is a prestressed concrete box beam or girders - multiple carrying County Arterial over Potholes East Canal in Franklin County, Washington. It was built in 1954 and reconstructed in 1967, so it is 71 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. Its operating status is: posted for load restriction.

It carries about 943 vehicles a day, roughly 27% of them trucks, projected to reach 1,400 by 2042. The structure is 61 ft (18.6 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCounty Arterial
CrossesPotholes East Canal
Location0.80 E JCT 522
RouteCounty Highway 5060
Coordinates46.49068, -119.17849
Functional classRural Minor Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
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 rating16.8 US tons
Inventory rating12.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length61 ft (18.6 m)
Longest span61 ft (18.6 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic943 (2022)
Projected traffic1,400 by 2042
Trucks27%
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$2.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Arterial over Potholes East Canal built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1967.

What condition is County Arterial 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 Arterial over Potholes East Canal carry?

About 943 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is County Arterial over Potholes East Canal?

The structure is 61 ft (18.6 m) long with a longest span of 61 ft (18.6 m) and a deck 28 ft wide.

Who owns County Arterial over Potholes East Canal?

It is owned by the County Highway Agency.