Structure 81014000000000 · Pacific County, WA

So Bend-palix Road over Niawiakum River

Carries So Bend-palix Road over Niawiakum River, 12.6 N Jct 4 & 101.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT67 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 5/9

67 ft end to end, longest span 22 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 multi-beam bridge.

Built196561 years old
Length66.9 ft20.4 m
Daily traffic39counted 2023
Last inspectedJune 2024every 24 months

Location

StateWashington
CountyPacific
Location12.6 N Jct 4 & 101
CarriesSo Bend-palix Road
CrossesNiawiakum River
Coordinates46.61303, -123.90003

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length66.9 ft (20.4 m)
Max Span22.0 ft (6.7 m)
Deck Width20.0 ft (6.1 m)
Deck Area124.4 sq m
Main Spans3
Year Built1965

Traffic

Avg Daily Traffic39 (2023)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number081014000000000

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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