US Bridges

So. Frontage Rd. over West Canal

Poor

Grant County, Washington · West Canal @ George · Structure no. 080294000000000

Built
1950
75 years old
Condition
Poor
inspected January 2024
Type
Slab
Concrete
Length
102 ft
3 main spans
Daily traffic
687
2021 count
Owner
County
County Highway Agency

About this bridge

So. Frontage Rd. over West Canal is a concrete slab carrying So. Frontage Rd. over West Canal in Grant County, Washington. It was built in 1950, 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 poor condition with a lowest component rating of 3 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.

It carries about 687 vehicles a day, roughly 31% of them trucks, projected to reach 1,205 by 2043. The structure is 102 ft (31.1 m) long and 52 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSo. Frontage Rd.
CrossesWest Canal
LocationWest Canal @ George
RouteCounty Highway 16570
CountyGrant County
StateWashington
Coordinates47.08664, -119.85551
Functional classRural Minor Collector

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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating25.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length102 ft (31.1 m)
Longest span30 ft (9.1 m)
Deck width52 ft (15.8 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic687 (2021)
Projected traffic1,205 by 2043
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$2.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was So. Frontage Rd. over West Canal built?

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

What condition is So. Frontage Rd. over West 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 January 2024.

How much traffic does So. Frontage Rd. over West Canal carry?

About 687 vehicles per day (2021 count), of which roughly 31% are trucks.

How long is So. Frontage Rd. over West Canal?

The structure is 102 ft (31.1 m) long with a longest span of 30 ft (9.1 m) and a deck 52 ft wide.

Who owns So. Frontage Rd. over West Canal?

It is owned by the County Highway Agency.