Structure 19763A0000000 · Pierce County, WA

SR 16 over Purdy Creek

Carries SR 16 over Purdy Creek, 1.8 N Jct SR 302.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT206 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

206 ft end to end: about 3 semi-trucks nose to tail. Lengths and the semi-truck 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 multi-beam bridge.

Built20233 years old
Length206.0 ft62.8 m
Daily traffic26,993counted 2023
Last inspectedJanuary 2024every 24 months

Location

StateWashington
CountyPierce
Location1.8 N Jct SR 302
CarriesSR 16
CrossesPurdy Creek
Coordinates47.39741, -122.62122

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length206.0 ft (62.8 m)
Max Span198.2 ft (60.4 m)
Deck Width41.0 ft (12.5 m)
Deck Area785 sq m
Main Spans1
Year Built2023

Traffic

Avg Daily Traffic26,993 (2023)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number0019763A0000000

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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