US Bridges

South Yakima Ave over S Tac Way/Center St/Np R

Good

Pierce County, Washington · 0.1 N JCT I-5 · Structure no. 085111000000000

Built
1961
64 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
738 ft
10 main spans
Daily traffic
10,550
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

South Yakima Ave over S Tac Way/Center St/Np R is a prestressed concrete stringer/multi-beam or girder carrying South Yakima Ave over S Tac Way/Center St/Np R 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,550 vehicles a day, roughly 5% of them trucks, projected to reach 20,983 by 2043. The structure is 738 ft (224.9 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouth Yakima Ave
CrossesS Tac Way/Center St/Np R
Location0.1 N JCT I-5
RouteCity Street 3011
Coordinates47.23375, -122.44311
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating57 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length738 ft (224.9 m)
Longest span108 ft (32.9 m)
Deck width66 ft (20 m)
Roadway width56 ft (17.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,550 (2021)
Projected traffic20,983 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$20.3 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was South Yakima Ave over S Tac Way/Center St/Np R built?

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

What condition is South Yakima Ave over S Tac Way/Center St/Np R 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 August 2023.

How much traffic does South Yakima Ave over S Tac Way/Center St/Np R carry?

About 10,550 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is South Yakima Ave over S Tac Way/Center St/Np R?

The structure is 738 ft (224.9 m) long with a longest span of 108 ft (32.9 m) and a deck 66 ft wide.

Who owns South Yakima Ave over S Tac Way/Center St/Np R?

It is owned by the City or Municipal Highway Agency.