US Bridges

SR 512 over Puyallup R & City Sts

Fair

Pierce County, Washington · 2.2 E JCT SR 161 · Structure no. 0009685A0000000

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,555 ft
1 main span
Daily traffic
43,523
2023 count
Owner
State
State Highway Agency

About this bridge

SR 512 over Puyallup R & City Sts is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 512 over Puyallup R & City Sts in Pierce County, Washington. It was built in 1975, so it is 50 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 43,523 vehicles a day, roughly 9% of them trucks, projected to reach 67,473 by 2039. The structure is 1,555 ft (474 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSR 512
CrossesPuyallup R & City Sts
Location2.2 E JCT SR 161
RouteState Highway 512
CountyPierce County
StateWashington
Coordinates47.18992, -122.28261
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+11 approach)
Design loadHS 20 + Mod
Structure length1,555 ft (474 m)
Longest span130 ft (39.6 m)
Deck width66 ft (20.1 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,523 (2023)
Projected traffic67,473 by 2039
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
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$29.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 512 over Puyallup R & City Sts built?

It was built in 1975, making it 50 years old in 2025.

What condition is SR 512 over Puyallup R & City Sts 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 August 2023.

How much traffic does SR 512 over Puyallup R & City Sts carry?

About 43,523 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SR 512 over Puyallup R & City Sts?

The structure is 1,555 ft (474 m) long with a longest span of 130 ft (39.6 m) and a deck 66 ft wide.

Who owns SR 512 over Puyallup R & City Sts?

It is owned by the State Highway Agency.