US Bridges

SR 9 over Pedestrain Trail

Fair

Snohomish County, Washington · 1.8 N JCT SR 528 · Structure no. 0005492A0000000

Built
1957
68 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
243 ft
3 main spans
Daily traffic
16,274
2023 count
Owner
State
State Highway Agency

About this bridge

SR 9 over Pedestrain Trail is a concrete continuous box beam or girders - multiple carrying SR 9 over Pedestrain Trail in Snohomish County, Washington. It was built in 1957, so it is 68 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 16,274 vehicles a day, roughly 8% of them trucks, projected to reach 23,593 by 2039. The structure is 243 ft (74.1 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesSR 9
CrossesPedestrain Trail
Location1.8 N JCT SR 528
RouteState Highway 9
CountySnohomish County
StateWashington
Coordinates48.07981, -122.11144
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length243 ft (74.1 m)
Longest span91 ft (27.7 m)
Deck width34 ft (10.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,274 (2023)
Projected traffic23,593 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

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$4.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 9 over Pedestrain Trail built?

It was built in 1957, making it 68 years old in 2025.

What condition is SR 9 over Pedestrain Trail 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 April 2023.

How much traffic does SR 9 over Pedestrain Trail carry?

About 16,274 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR 9 over Pedestrain Trail?

The structure is 243 ft (74.1 m) long with a longest span of 91 ft (27.7 m) and a deck 34 ft wide.

Who owns SR 9 over Pedestrain Trail?

It is owned by the State Highway Agency.