US Bridges

SR 262 over Potholes Canal

Good

Grant County, Washington · 17.5 N JCT SR 26 · Structure no. 085905000000000

Built
1949
76 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
1,601
2023 count
Owner
Federal
Bureau of Reclamation

About this bridge

SR 262 over Potholes Canal is a concrete culvert carrying SR 262 over Potholes Canal in Grant County, Washington. It was built in 1949, so it is 76 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 1,601 vehicles a day, roughly 7% of them trucks, projected to reach 2,124 by 2039. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 31.7 mi (51 km).

CarriesSR 262
CrossesPotholes Canal
Location17.5 N JCT SR 26
RouteState Highway 262
Coordinates46.98274, -119.25849
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length25 ft (7.6 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,601 (2023)
Projected traffic2,124 by 2039
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Reclamation
Maintained byBureau of Reclamation
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$356,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 262 over Potholes Canal built?

It was built in 1949, making it 76 years old in 2025.

What condition is SR 262 over Potholes 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 February 2023.

How much traffic does SR 262 over Potholes Canal carry?

About 1,601 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SR 262 over Potholes Canal?

The structure is 25 ft (7.6 m) long with a longest span of 10 ft (3.2 m).

Who owns SR 262 over Potholes Canal?

It is owned by the Bureau of Reclamation.