US Bridges

I-5 over S96th ST

Fair

Pierce County, Washington · 0.6 N JCT SR 512 · Structure no. 0005667A0000000

Built
1958
67 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
87 ft
1 main span
Daily traffic
88,784
2023 count
Owner
State
State Highway Agency

About this bridge

I-5 over S96th ST is a concrete box beam or girders - multiple carrying I-5 over S96th ST in Pierce County, Washington. It was built in 1958, so it is 67 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 88,784 vehicles a day, roughly 11% of them trucks, projected to reach 129,223 by 2039. The structure is 87 ft (26.5 m) long and 66 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesI-5
CrossesS96th ST
Location0.6 N JCT SR 512
RouteInterstate 5
CountyPierce County
StateWashington
Coordinates47.17011, -122.47256
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.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length87 ft (26.5 m)
Longest span83 ft (25.3 m)
Deck width66 ft (20.1 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88,784 (2023)
Projected traffic129,223 by 2039
Trucks11%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 over S96th ST built?

It was built in 1958, making it 67 years old in 2025.

What condition is I-5 over S96th ST 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 I-5 over S96th ST carry?

About 88,784 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is I-5 over S96th ST?

The structure is 87 ft (26.5 m) long with a longest span of 83 ft (25.3 m) and a deck 66 ft wide.

Who owns I-5 over S96th ST?

It is owned by the State Highway Agency.