US Bridges

Pinto Ridge Road over Main Canal

Fair

Grant County, Washington · Pinto Ridge @ Main Canal · Structure no. 084684000000000

Built
1977
48 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
180 ft
2 main spans
Daily traffic
493
2024 count
Owner
County
County Highway Agency

About this bridge

Pinto Ridge Road over Main Canal is a prestressed concrete tee beam carrying Pinto Ridge Road over Main Canal in Grant County, Washington. It was built in 1977, so it is 48 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 493 vehicles a day, roughly 26% of them trucks, projected to reach 700 by 2041. The structure is 180 ft (54.9 m) long and 28 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesPinto Ridge Road
CrossesMain Canal
LocationPinto Ridge @ Main Canal
RouteCounty Highway 95025
CountyGrant County
StateWashington
Coordinates47.53286, -119.28957
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating55 US tons
Inventory rating35.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20 + Mod
Structure length180 ft (54.9 m)
Longest span89 ft (27.1 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic493 (2024)
Projected traffic700 by 2041
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$6.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pinto Ridge Road over Main Canal built?

It was built in 1977, making it 48 years old in 2025.

What condition is Pinto Ridge Road over Main Canal 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 November 2024.

How much traffic does Pinto Ridge Road over Main Canal carry?

About 493 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is Pinto Ridge Road over Main Canal?

The structure is 180 ft (54.9 m) long with a longest span of 89 ft (27.1 m) and a deck 28 ft wide.

Who owns Pinto Ridge Road over Main Canal?

It is owned by the County Highway Agency.