US Bridges

Cunningham RD over Potholes East Canal

Good

Adams County, Washington · 00.00 MI W Othello · Structure no. 080103000000000

Built
1995
30 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
146 ft
1 main span
Daily traffic
3,513
2019 count
Owner
County
County Highway Agency

About this bridge

Cunningham RD over Potholes East Canal is a concrete continuous stringer/multi-beam or girder carrying Cunningham RD over Potholes East Canal in Adams County, Washington. It was built in 1995, so it is 30 years old, younger 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 3,513 vehicles a day, roughly 18% of them trucks, projected to reach 4,000 by 2040. The structure is 146 ft (44.5 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCunningham RD
CrossesPotholes East Canal
Location00.00 MI W Othello
RouteCounty Highway 12362
Coordinates46.82617, -119.18064
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating42.5 US tons
Inventory rating31.1 US tons

Structure

MaterialConcrete Continuous
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length146 ft (44.5 m)
Longest span145 ft (44.1 m)
Deck width46 ft (14 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,513 (2019)
Projected traffic4,000 by 2040
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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$5.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cunningham RD over Potholes East Canal built?

It was built in 1995, making it 30 years old in 2025.

What condition is Cunningham RD 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 2024.

How much traffic does Cunningham RD over Potholes East Canal carry?

About 3,513 vehicles per day (2019 count), of which roughly 18% are trucks.

How long is Cunningham RD over Potholes East Canal?

The structure is 146 ft (44.5 m) long with a longest span of 145 ft (44.1 m) and a deck 46 ft wide.

Who owns Cunningham RD over Potholes East Canal?

It is owned by the County Highway Agency.