US Bridges

County Road over Potholes East Canal

PoorPosted for load

Franklin County, Washington · 1.38W JCT R 529 · Structure no. 084214000000000

Built
1954
71 years old
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
93 ft
3 main spans
Daily traffic
204
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 1954, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 204 vehicles a day, roughly 28% of them trucks, projected to reach 303 by 2042. The structure is 93 ft (28.3 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCounty Road
CrossesPotholes East Canal
Location1.38W JCT R 529
RouteCounty Highway 5200
Coordinates46.48211, -119.23771
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating24.7 US tons
Inventory rating14.7 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 15
Structure length93 ft (28.3 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic204 (2022)
Projected traffic303 by 2042
Trucks28%
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$3.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Potholes East Canal built?

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

What condition is County Road over Potholes East Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

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

About 204 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is County Road over Potholes East Canal?

The structure is 93 ft (28.3 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns County Road over Potholes East Canal?

It is owned by the County Highway Agency.