Structure 89070000000000 · Clark County, WA

NE 10th AVE over Whipple Creek

Carries NE 10th AVE over Whipple Creek, 0.6 N NE 146th.

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 FT452 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

452 ft end to end, longest span 210 ft: about 6 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.

Built20188 years old
Length452.1 ft137.8 m
Daily traffic950counted 2019
Last inspectedMarch 2023every 24 months

Location

StateWashington
CountyClark
Location0.6 N NE 146th
CarriesNE 10th AVE
CrossesWhipple Creek
Coordinates45.73417, -122.66167

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length452.1 ft (137.8 m)
Max Span210.0 ft (64 m)
Deck Width51.8 ft (15.8 m)
Deck Area2177.2 sq m
Main Spans3
Year Built2018

Traffic

Avg Daily Traffic950 (2019)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical9 — Foundation above flood level
Structure Number089070000000000

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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