Structure 80381000000000 · Grays Harbor County, WA

North River Road over North River

Carries North River Road over North River, 9.8 E Jct US 101.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT328 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 3/9 · sets the rating

328 ft end to end: about 5 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 box-beam bridge.

Built195175 years old
Length328.1 ft100 m
Daily traffic303counted 2020
Last inspectedFebruary 2024every 24 months

Location

StateWashington
CountyGrays Harbor
Location9.8 E Jct US 101
CarriesNorth River Road
CrossesNorth River
Coordinates46.81817, -123.58268

Physical Characteristics

MaterialConcrete
DesignBox Beam - Single/Spread
Total Length328.1 ft (100 m)
Max Span80.1 ft (24.4 m)
Deck Width24.0 ft (7.3 m)
Deck Area730 sq m
Main Spans1
Year Built1951

Traffic

Avg Daily Traffic303 (2020)
Truck Traffic34%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number080381000000000

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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