US Bridges

George South Road over West Canal Blk 78

Good

Grant County, Washington · Q SW 1.3 South of 3 · Structure no. 086061000000000

Built
1993
32 years old
Condition
Good
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
93 ft
1 main span
Daily traffic
831
2019 count
Owner
County
County Highway Agency

About this bridge

George South Road over West Canal Blk 78 is a prestressed concrete tee beam carrying George South Road over West Canal Blk 78 in Grant County, Washington. It was built in 1993, so it is 32 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 831 vehicles a day, roughly 25% of them trucks, projected to reach 980 by 2041. The structure is 93 ft (28.3 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesGeorge South Road
CrossesWest Canal Blk 78
LocationQ SW 1.3 South of 3
RouteCounty Highway 91035
Coordinates47.02719, -119.85574
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating38.9 US tons
Inventory rating25.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length93 ft (28.3 m)
Longest span92 ft (28 m)
Deck width35 ft (10.7 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic831 (2019)
Projected traffic980 by 2041
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was George South Road over West Canal Blk 78 built?

It was built in 1993, making it 32 years old in 2025.

What condition is George South Road over West Canal Blk 78 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 George South Road over West Canal Blk 78 carry?

About 831 vehicles per day (2019 count), of which roughly 25% are trucks.

How long is George South Road over West Canal Blk 78?

The structure is 93 ft (28.3 m) long with a longest span of 92 ft (28 m) and a deck 35 ft wide.

Who owns George South Road over West Canal Blk 78?

It is owned by the County Highway Agency.