Structure 6379B0000000 · Pierce County, WA

I-5 over Wapato Creek

Carries I-5 over Wapato Creek, 1.4 N Jct SR 167.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

60 ft end to end, longest span 22 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built1960rebuilt 2010
Length60.0 ft18.3 m
Daily traffic97,641counted 2023
Last inspectedDecember 2020every 48 months

Location

StateWashington
CountyPierce
Location1.4 N Jct SR 167
CarriesI-5
CrossesWapato Creek
Coordinates47.24078, -122.37450

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length60.0 ft (18.3 m)
Max Span22.0 ft (6.7 m)
Deck Width86.0 ft (26.2 m)
Deck Area479.5 sq m
Main Spans3
Year Built1960 (reconstructed 2010)

Traffic

Avg Daily Traffic97,641 (2023)
Truck Traffic7%
Lanes On Bridge4

Inspection & Ownership

Last InspectionDecember 2020
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number0006379B0000000

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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