US Bridges

I-5 NB over SR 16 Eb/Sb E/S-N Ramp

Good

Pierce County, Washington · 5.0 N JCT SR 512 · Structure no. 0018818A0000000

Built
2017
8 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
156 ft
1 main span
Daily traffic
67,156
2023 count
Owner
State
State Highway Agency

About this bridge

I-5 NB over SR 16 Eb/Sb E/S-N Ramp is a prestressed concrete stringer/multi-beam or girder carrying I-5 NB over SR 16 Eb/Sb E/S-N Ramp in Pierce County, Washington. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 67,156 vehicles a day, roughly 11% of them trucks, projected to reach 97,745 by 2039. The structure is 156 ft (47.5 m) long and 90 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-5 NB
CrossesSR 16 Eb/Sb E/S-N Ramp
Location5.0 N JCT SR 512
RouteInterstate 5
CountyPierce County
StateWashington
Coordinates47.22989, -122.45986
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.3 US tons
Inventory rating51.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length156 ft (47.5 m)
Longest span153 ft (46.6 m)
Deck width90 ft (27.5 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67,156 (2023)
Projected traffic97,745 by 2039
Trucks11%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$9.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 NB over SR 16 Eb/Sb E/S-N Ramp built?

It was built in 2017, making it 8 years old in 2025.

What condition is I-5 NB over SR 16 Eb/Sb E/S-N 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 December 2023.

How much traffic does I-5 NB over SR 16 Eb/Sb E/S-N Ramp carry?

About 67,156 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is I-5 NB over SR 16 Eb/Sb E/S-N Ramp?

The structure is 156 ft (47.5 m) long with a longest span of 153 ft (46.6 m) and a deck 90 ft wide.

Who owns I-5 NB over SR 16 Eb/Sb E/S-N Ramp?

It is owned by the State Highway Agency.