US Bridges

Q RD NE over East Low Canal

Good

Grant County, Washington · Q NE .6 North of I-90 · Structure no. 085908000000000

Built
1992
33 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
144 ft
1 main span
Daily traffic
439
2023 count
Owner
County
County Highway Agency

About this bridge

Q RD NE over East Low Canal is a prestressed concrete tee beam carrying Q RD NE over East Low Canal in Grant County, Washington. It was built in 1992, so it is 33 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 439 vehicles a day, roughly 39% of them trucks, projected to reach 400 by 2040. The structure is 144 ft (43.9 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesQ RD NE
CrossesEast Low Canal
LocationQ NE .6 North of I-90
RouteCounty Highway 43590
Coordinates47.0978, -119.12931
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 inspectionDecember 2023
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 rating50.4 US tons
Inventory rating35.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length144 ft (43.9 m)
Longest span143 ft (43.6 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic439 (2023)
Projected traffic400 by 2040
Trucks39%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$5.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Q RD NE over East Low Canal built?

It was built in 1992, making it 33 years old in 2025.

What condition is Q RD NE over East Low 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 December 2023.

How much traffic does Q RD NE over East Low Canal carry?

About 439 vehicles per day (2023 count), of which roughly 39% are trucks.

How long is Q RD NE over East Low Canal?

The structure is 144 ft (43.9 m) long with a longest span of 143 ft (43.6 m) and a deck 30 ft wide.

Who owns Q RD NE over East Low Canal?

It is owned by the County Highway Agency.