US Bridges

County Arterial over Potholes East Canal

GoodPosted for load

Franklin County, Washington · 1.35E JCT R 901 · Structure no. 080503000000000

Built
1956
69 years old, rebuilt 1978
Condition
Good
inspected November 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
315
2022 count
Owner
County
County Highway Agency

About this bridge

County Arterial over Potholes East Canal is a prestressed concrete stringer/multi-beam or girder carrying County Arterial over Potholes East Canal in Franklin County, Washington. It was built in 1956 and reconstructed in 1978, so it is 69 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 315 vehicles a day, roughly 25% of them trucks, projected to reach 510 by 2042. The structure is 26 ft (7.9 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Arterial
CrossesPotholes East Canal
Location1.35E JCT R 901
RouteCounty Highway 6700
CountyFranklin County
StateWashington
Coordinates46.5472, -119.10384
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating11.8 US tons
Inventory rating11 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic315 (2022)
Projected traffic510 by 2042
Trucks25%
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$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Arterial over Potholes East Canal built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1978.

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 315 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is County Arterial over Potholes East Canal?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 30 ft wide.

Who owns County Arterial over Potholes East Canal?

It is owned by the County Highway Agency.