US Bridges

Elliott Road over Elliott Creek

Good

Snohomish County, Washington · 1.5 E JCT SR9 · Structure no. 089043000000000

Built
2013
12 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
2,476
2019 count
Owner
County
County Highway Agency

About this bridge

Elliott Road over Elliott Creek is a concrete culvert carrying Elliott Road over Elliott Creek in Snohomish County, Washington. It was built in 2013, so it is 12 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,476 vehicles a day, roughly 10% of them trucks, projected to reach 5,000 by 2041. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesElliott Road
CrossesElliott Creek
Location1.5 E JCT SR9
RouteCounty Highway 20670
CountySnohomish County
StateWashington
Coordinates47.84333, -122.09058
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating61 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length28 ft (8.4 m)
Longest span28 ft (8.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,476 (2019)
Projected traffic5,000 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Elliott Road over Elliott Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Elliott Road over Elliott Creek 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 March 2023.

How much traffic does Elliott Road over Elliott Creek carry?

About 2,476 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Elliott Road over Elliott Creek?

The structure is 28 ft (8.4 m) long with a longest span of 28 ft (8.4 m).

Who owns Elliott Road over Elliott Creek?

It is owned by the County Highway Agency.