US Bridges

Shorewood Drive over I-90

Fair

King County, Washington · 5.0 E JCT I-5 · Structure no. 0013299A0000000

Built
1989
36 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
205 ft
3 main spans
Daily traffic
16,800
2002 count
Owner
State
State Highway Agency

About this bridge

Shorewood Drive over I-90 is a concrete continuous box beam or girders - multiple carrying Shorewood Drive over I-90 in King County, Washington. It was built in 1989, so it is 36 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 5 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 16,800 vehicles a day, roughly 2% of them trucks, projected to reach 22,643 by 2032. The structure is 205 ft (62.5 m) long and 105 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesShorewood Drive
CrossesI-90
Location5.0 E JCT I-5
RouteCity Street 0
CountyKing County
StateWashington
Coordinates47.58186, -122.21939
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating79 US tons
Inventory rating47 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length205 ft (62.5 m)
Longest span77 ft (23.5 m)
Deck width105 ft (32 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,800 (2002)
Projected traffic22,643 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.9 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Shorewood Drive over I-90 built?

It was built in 1989, making it 36 years old in 2025.

What condition is Shorewood Drive over I-90 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 March 2024.

How much traffic does Shorewood Drive over I-90 carry?

About 16,800 vehicles per day (2002 count), of which roughly 2% are trucks.

How long is Shorewood Drive over I-90?

The structure is 205 ft (62.5 m) long with a longest span of 77 ft (23.5 m) and a deck 105 ft wide.

Who owns Shorewood Drive over I-90?

It is owned by the State Highway Agency.