US Bridges

SR 262 over Generator Bypass Chute

Fair

Grant County, Washington · 17.5 N JCT SR 26 · Structure no. 085906000000000

Built
1989
36 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
99 ft
1 main span
Daily traffic
1,601
2023 count
Owner
Federal
Bureau of Reclamation

About this bridge

SR 262 over Generator Bypass Chute is a prestressed concrete stringer/multi-beam or girder carrying SR 262 over Generator Bypass Chute in Grant County, Washington. It was built in 1989, so it is 36 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,601 vehicles a day, roughly 7% of them trucks, projected to reach 2,124 by 2039. The structure is 99 ft (30.3 m) long and 37 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

Location

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CarriesSR 262
CrossesGenerator Bypass Chute
Location17.5 N JCT SR 26
RouteState Highway 262
CountyGrant County
StateWashington
Coordinates46.98272, -119.25804
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating89 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length99 ft (30.3 m)
Longest span98 ft (29.9 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 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 closed34.2 mi (55 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$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 262 over Generator Bypass Chute built?

It was built in 1989, making it 36 years old in 2025.

What condition is SR 262 over Generator Bypass Chute in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does SR 262 over Generator Bypass Chute carry?

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

How long is SR 262 over Generator Bypass Chute?

The structure is 99 ft (30.3 m) long with a longest span of 98 ft (29.9 m) and a deck 37 ft wide.

Who owns SR 262 over Generator Bypass Chute?

It is owned by the Bureau of Reclamation.