Structure 88940000000000 · Clark County, WA

NE Etna Road over Cedar Creek

Carries NE Etna Road over Cedar Creek, 1.0 E Cedar Creek RD.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT129 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 8/9

129 ft end to end. 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.

Built20179 years old
Length128.9 ft39.3 m
Daily traffic335counted 2022
Last inspectedDecember 2022every 24 months

Location

StateWashington
CountyClark
Location1.0 E Cedar Creek RD
CarriesNE Etna Road
CrossesCedar Creek
Coordinates45.93567, -122.61900

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length128.9 ft (39.3 m)
Max Span125.0 ft (38.1 m)
Deck Width30.8 ft (9.4 m)
Deck Area369.4 sq m
Main Spans1
Year Built2017

Traffic

Avg Daily Traffic335 (2022)
Truck Traffic44%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2022
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical8 — Stable, low risk
Structure Number088940000000000

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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