Structure 60507000001319 · Pierce County, WA

Road over Greenwater River

Carries Road over Greenwater River, 8.4 Mi E Of Hy 410/70 Jct.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT90 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

90 ft end to end, longest span 60 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 rigid-frame bridge.

Built1958rebuilt 2012
Length89.9 ft27.4 m
Daily traffic143counted 1991
Last inspectedSeptember 2022every 48 months

Location

StateWashington
CountyPierce
Location8.4 Mi E Of Hy 410/70 Jct
CarriesRoad
CrossesGreenwater River
Coordinates47.11039, -121.48078

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length89.9 ft (27.4 m)
Max Span60.0 ft (18.3 m)
Deck Width28.5 ft (8.7 m)
Deck Area238.4 sq m
Main Spans3
Year Built1958 (reconstructed 2012)

Traffic

Avg Daily Traffic143 (1991)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2022
Inspection FrequencyEvery 48 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number060507000001319

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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