US Bridges

I-5 S-E Ramp over I-5 Ramps Railroad

Fair

King County, Washington · 7.1 N JCT SR 900 · Structure no. 0007565E0000000

Built
1965
60 years old, rebuilt 1989
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
947 ft
9 main spans
Daily traffic
30,627
2012 count
Owner
State
State Highway Agency

About this bridge

I-5 S-E Ramp over I-5 Ramps Railroad is a concrete continuous box beam or girders - multiple carrying I-5 S-E Ramp over I-5 Ramps Railroad in King County, Washington. It was built in 1965 and reconstructed in 1989, so it is 60 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 30,627 vehicles a day, roughly 5% of them trucks, projected to reach 51,208 by 2036. The structure is 947 ft (288.6 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-5 S-E Ramp
CrossesI-5 Ramps Railroad
Location7.1 N JCT SR 900
RouteInterstate 5
Coordinates47.59612, -122.32077
Functional classUrban Principal Arterial - Interstate

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20 + Mod
Structure length947 ft (288.6 m)
Longest span140 ft (42.7 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,627 (2012)
Projected traffic51,208 by 2036
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$17.1 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 S-E Ramp over I-5 Ramps Railroad built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1989.

What condition is I-5 S-E Ramp over I-5 Ramps Railroad 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 July 2023.

How much traffic does I-5 S-E Ramp over I-5 Ramps Railroad carry?

About 30,627 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is I-5 S-E Ramp over I-5 Ramps Railroad?

The structure is 947 ft (288.6 m) long with a longest span of 140 ft (42.7 m) and a deck 33 ft wide.

Who owns I-5 S-E Ramp over I-5 Ramps Railroad?

It is owned by the State Highway Agency.