US Bridges

SR 99 (54th Ave E) over I-5 Ramps

Poor

Pierce County, Washington · JCT I-5 · Structure no. 0006480B0000000

Built
1961
64 years old
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
321 ft
4 main spans
Daily traffic
29,145
2023 count
Owner
State
State Highway Agency

About this bridge

SR 99 (54th Ave E) over I-5 Ramps is a prestressed concrete stringer/multi-beam or girder carrying SR 99 (54th Ave E) over I-5 Ramps in Pierce County, Washington. It was built in 1961, so it is 64 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 29,145 vehicles a day, roughly 9% of them trucks, projected to reach 42,818 by 2039. The structure is 321 ft (97.8 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSR 99 (54th Ave E)
CrossesI-5 Ramps
LocationJCT I-5
RouteState Highway 99
CountyPierce County
StateWashington
Coordinates47.24042, -122.35706
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating15.3 US tons
Inventory rating11.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length321 ft (97.8 m)
Longest span85 ft (25.9 m)
Deck width64 ft (19.4 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,145 (2023)
Projected traffic42,818 by 2039
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 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$8.5 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 99 (54th Ave E) over I-5 Ramps built?

It was built in 1961, making it 64 years old in 2025.

What condition is SR 99 (54th Ave E) over I-5 Ramps in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does SR 99 (54th Ave E) over I-5 Ramps carry?

About 29,145 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SR 99 (54th Ave E) over I-5 Ramps?

The structure is 321 ft (97.8 m) long with a longest span of 85 ft (25.9 m) and a deck 64 ft wide.

Who owns SR 99 (54th Ave E) over I-5 Ramps?

It is owned by the State Highway Agency.