US Bridges

S-S Ramp over SR 16 Eb/Sb I-5 Ramps

Fair

Pierce County, Washington · 4.9 N JCT SR 512 · Structure no. 0018189B0000000

Built
2013
12 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
590 ft
3 main spans
Daily traffic
9,320
2022 count
Owner
State
State Highway Agency

About this bridge

S-S Ramp over SR 16 Eb/Sb I-5 Ramps is a steel continuous stringer/multi-beam or girder carrying S-S Ramp over SR 16 Eb/Sb I-5 Ramps in Pierce County, Washington. It was built in 2013, so it is 12 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 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 9,320 vehicles a day, roughly 5% of them trucks, projected to reach 13,903 by 2039. The structure is 590 ft (179.8 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS-S Ramp
CrossesSR 16 Eb/Sb I-5 Ramps
Location4.9 N JCT SR 512
RouteInterstate 5
CountyPierce County
StateWashington
Coordinates47.23108, -122.46044
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 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 rating60.4 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length590 ft (179.8 m)
Longest span220 ft (67.1 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic9,320 (2022)
Projected traffic13,903 by 2039
Trucks5%
Lanes on structure1
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$10.1 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-S Ramp over SR 16 Eb/Sb I-5 Ramps built?

It was built in 2013, making it 12 years old in 2025.

What condition is S-S Ramp over SR 16 Eb/Sb I-5 Ramps 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 S-S Ramp over SR 16 Eb/Sb I-5 Ramps carry?

About 9,320 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is S-S Ramp over SR 16 Eb/Sb I-5 Ramps?

The structure is 590 ft (179.8 m) long with a longest span of 220 ft (67.1 m) and a deck 37 ft wide.

Who owns S-S Ramp over SR 16 Eb/Sb I-5 Ramps?

It is owned by the State Highway Agency.