US Bridges

SR 28 over West Canal

Good

Grant County, Washington · 0.9 E JCT SR 281 · Structure no. 000000LV0000000

Built
1950
75 years old, rebuilt 1988
Condition
Good
inspected February 2023
Type
Tee Beam
Concrete Continuous
Length
115 ft
3 main spans
Daily traffic
8,758
2023 count
Owner
State
State Highway Agency

About this bridge

SR 28 over West Canal is a concrete continuous tee beam carrying SR 28 over West Canal in Grant County, Washington. It was built in 1950 and reconstructed in 1988, so it is 75 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 8,758 vehicles a day, roughly 8% of them trucks, projected to reach 10,412 by 2039. The structure is 115 ft (35.1 m) long and 48 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 28
CrossesWest Canal
Location0.9 E JCT SR 281
RouteState Highway 28
CountyGrant County
StateWashington
Coordinates47.23403, -119.83502
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating30.8 US tons
Inventory rating23.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span41 ft (12.5 m)
Deck width48 ft (14.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,758 (2023)
Projected traffic10,412 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 28 over West Canal built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1988.

What condition is SR 28 over West 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 28 over West Canal carry?

About 8,758 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR 28 over West Canal?

The structure is 115 ft (35.1 m) long with a longest span of 41 ft (12.5 m) and a deck 48 ft wide.

Who owns SR 28 over West Canal?

It is owned by the State Highway Agency.