Structure 14963D0000000 · Pierce County, WA

Center Dr-ft Lewis over Truck Ramp

Carries Center Dr-ft Lewis over Truck Ramp, 3.3 N Thurston Co.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT99 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

99 ft end to end. 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 multi-beam bridge.

Built199729 years old
Length99.1 ft30.2 m
Daily traffic125counted 2002
Last inspectedMarch 2021every 48 months

Location

StateWashington
CountyPierce
Location3.3 N Thurston Co
CarriesCenter Dr-ft Lewis
CrossesTruck Ramp
Coordinates47.08573, -122.64372

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length99.1 ft (30.2 m)
Max Span91.9 ft (28 m)
Deck Width25.3 ft (7.7 m)
Deck Area232.5 sq m
Main Spans1
Year Built1997

Traffic

Avg Daily Traffic125 (2002)
Truck Traffic5%
Lanes On Bridge1
Lanes Under Bridge1

Inspection & Ownership

Last InspectionMarch 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number0014963D0000000

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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