US Bridges

20 Road NE over Crab Creek

FairPosted for load

Grant County, Washington · 20 NE 0.1 East of E NE · Structure no. 083145000000000

Built
1988
37 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
210 ft
3 main spans
Daily traffic
390
2019 count
Owner
County
County Highway Agency

About this bridge

20 Road NE over Crab Creek is a prestressed concrete tee beam carrying 20 Road NE over Crab Creek in Grant County, Washington. It was built in 1988, so it is 37 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. Its operating status is: posted for load restriction.

It carries about 390 vehicles a day, roughly 21% of them trucks, projected to reach 450 by 2041. The structure is 210 ft (64 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
Carries20 Road NE
CrossesCrab Creek
Location20 NE 0.1 East of E NE
RouteCounty Highway 94046
CountyGrant County
StateWashington
Coordinates47.38287, -119.38486
Functional classRural Minor 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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating28.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length210 ft (64 m)
Longest span70 ft (21.3 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2019)
Projected traffic450 by 2041
Trucks21%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 20 Road NE over Crab Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is 20 Road NE over Crab Creek 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 October 2023.

How much traffic does 20 Road NE over Crab Creek carry?

About 390 vehicles per day (2019 count), of which roughly 21% are trucks.

How long is 20 Road NE over Crab Creek?

The structure is 210 ft (64 m) long with a longest span of 70 ft (21.3 m) and a deck 30 ft wide.

Who owns 20 Road NE over Crab Creek?

It is owned by the County Highway Agency.