US Bridges

S-S Ramp over S-E Ramp

Good

Snohomish County, Washington · 3.2 N JCT SR 523 · Structure no. 0014326B0000000

Built
1995
30 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
308 ft
3 main spans
Daily traffic
6,627
2023 count
Owner
State
State Highway Agency

About this bridge

S-S Ramp over S-E Ramp is a prestressed concrete continuous box beam or girders - multiple carrying S-S Ramp over S-E Ramp in Snohomish County, Washington. It was built in 1995, so it is 30 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,627 vehicles a day, roughly 5% of them trucks, projected to reach 10,143 by 2039. The structure is 308 ft (93.9 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-S Ramp
CrossesS-E Ramp
Location3.2 N JCT SR 523
RouteInterstate 5
Coordinates47.784, -122.31744
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length308 ft (93.9 m)
Longest span132 ft (40.2 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,627 (2023)
Projected traffic10,143 by 2039
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$7.6 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-S Ramp over S-E Ramp built?

It was built in 1995, making it 30 years old in 2025.

What condition is S-S Ramp over S-E Ramp 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 October 2024.

How much traffic does S-S Ramp over S-E Ramp carry?

About 6,627 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-S Ramp over S-E Ramp?

The structure is 308 ft (93.9 m) long with a longest span of 132 ft (40.2 m) and a deck 45 ft wide.

Who owns S-S Ramp over S-E Ramp?

It is owned by the State Highway Agency.