US Bridges

SR 9 over Harvey Ck RD / Harvey Ck

Good

Snohomish County, Washington · 1.4 N JCT SR 530 · Structure no. 0017267A0000000

Built
2008
17 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
180 ft
1 main span
Daily traffic
8,041
2023 count
Owner
State
State Highway Agency

About this bridge

SR 9 over Harvey Ck RD / Harvey Ck is a prestressed concrete stringer/multi-beam or girder carrying SR 9 over Harvey Ck RD / Harvey Ck in Snohomish County, Washington. It was built in 2008, so it is 17 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 8,041 vehicles a day, roughly 6% of them trucks, projected to reach 10,499 by 2039. The structure is 180 ft (54.9 m) long and 43 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesSR 9
CrossesHarvey Ck RD / Harvey Ck
Location1.4 N JCT SR 530
RouteState Highway 9
Coordinates48.21712, -122.13701
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating99 US tons
Inventory rating59 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length180 ft (54.9 m)
Longest span175 ft (53.3 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,041 (2023)
Projected traffic10,499 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 9 over Harvey Ck RD / Harvey Ck built?

It was built in 2008, making it 17 years old in 2025.

What condition is SR 9 over Harvey Ck RD / Harvey Ck 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 August 2024.

How much traffic does SR 9 over Harvey Ck RD / Harvey Ck carry?

About 8,041 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SR 9 over Harvey Ck RD / Harvey Ck?

The structure is 180 ft (54.9 m) long with a longest span of 175 ft (53.3 m) and a deck 43 ft wide.

Who owns SR 9 over Harvey Ck RD / Harvey Ck?

It is owned by the State Highway Agency.