US Bridges

SR 526 over Hardeson Road

Fair

Snohomish County, Washington · 2.9 E JCT SR 525 · Structure no. 0008446D0000000

Built
1969
56 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
163 ft
3 main spans
Daily traffic
34,774
2023 count
Owner
State
State Highway Agency

About this bridge

SR 526 over Hardeson Road is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 526 over Hardeson Road in Snohomish County, Washington. It was built in 1969, so it is 56 years old, older 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 34,774 vehicles a day, roughly 3% of them trucks, projected to reach 49,317 by 2039. The structure is 163 ft (49.8 m) long and 101 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesSR 526
CrossesHardeson Road
Location2.9 E JCT SR 525
RouteState Highway 526
CountySnohomish County
StateWashington
Coordinates47.92351, -122.24073
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length163 ft (49.8 m)
Longest span59 ft (18.1 m)
Deck width101 ft (30.8 m)
Roadway width98 ft (29.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,774 (2023)
Projected traffic49,317 by 2039
Trucks3%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 526 over Hardeson Road built?

It was built in 1969, making it 56 years old in 2025.

What condition is SR 526 over Hardeson Road 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 SR 526 over Hardeson Road carry?

About 34,774 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is SR 526 over Hardeson Road?

The structure is 163 ft (49.8 m) long with a longest span of 59 ft (18.1 m) and a deck 101 ft wide.

Who owns SR 526 over Hardeson Road?

It is owned by the State Highway Agency.