Structure 2950A0000000 · Pierce County, WA

SR 165 over Carbon River

Carries SR 165 over Carbon River, 11.5 N Rainier Park.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating3/9 · Serious
Substructure5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT494 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 3/9 · sets the ratingSubstructure 5/9

494 ft end to end: about 7 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 deck arch.

Built1921rebuilt 1945
Length494.1 ft150.6 m
Daily traffic270counted 2023
Last inspectedFebruary 2024every 24 months

Location

StateWashington
CountyPierce
Location11.5 N Rainier Park
CarriesSR 165
CrossesCarbon River
Coordinates47.04153, -122.04197

Physical Characteristics

MaterialSteel Continuous
DesignArch - Deck
Total Length494.1 ft (150.6 m)
Max Span240.2 ft (73.2 m)
Deck Width19.0 ft (5.8 m)
Deck Area873.5 sq m
Main Spans1
Year Built1921 (reconstructed 1945)

Traffic

Avg Daily Traffic270 (2023)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical9 — Foundation above flood level
Structure Number0002950A0000000

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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