US Bridges

Steele ST over SR 512

Fair

Pierce County, Washington · 0.6 E JCT I-5 · Structure no. 0005985A0000000

Built
1959
66 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
139 ft
2 main spans
Daily traffic
13,792
2020 count
Owner
State
State Highway Agency

About this bridge

Steele ST over SR 512 is a concrete continuous slab carrying Steele ST over SR 512 in Pierce County, Washington. It was built in 1959, so it is 66 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 13,792 vehicles a day, roughly 8% of them trucks, projected to reach 23,498 by 2040. The structure is 139 ft (42.4 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSteele ST
CrossesSR 512
Location0.6 E JCT I-5
RouteCounty Highway 0
CountyPierce County
StateWashington
Coordinates47.15996, -122.46785
Functional classUrban Other Principal Arterial

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating60 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length139 ft (42.4 m)
Longest span65 ft (19.8 m)
Deck width34 ft (10.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,792 (2020)
Projected traffic23,498 by 2040
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
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$1.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Steele ST over SR 512 built?

It was built in 1959, making it 66 years old in 2025.

What condition is Steele ST over SR 512 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 July 2023.

How much traffic does Steele ST over SR 512 carry?

About 13,792 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Steele ST over SR 512?

The structure is 139 ft (42.4 m) long with a longest span of 65 ft (19.8 m) and a deck 34 ft wide.

Who owns Steele ST over SR 512?

It is owned by the State Highway Agency.