Structure 4106A0000000 · Grays Harbor County, WA

SR 105 over Johns River

Carries SR 105 over Johns River, 7.0 N Jct SR 105 Sp.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT583 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

583 ft end to end, longest span 120 ft: about 1.6 football fields. 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.

Built195274 years old
Length583.0 ft177.7 m
Daily traffic6,124counted 2023
Last inspectedApril 2024every 24 months

Location

StateWashington
CountyGrays Harbor
Location7.0 N Jct SR 105 Sp
CarriesSR 105
CrossesJohns River
Coordinates46.89914, -123.99953

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length583.0 ft (177.7 m)
Max Span120.1 ft (36.6 m)
Deck Width33.8 ft (10.3 m)
Deck Area1830.3 sq m
Main Spans3
Year Built1952

Traffic

Avg Daily Traffic6,124 (2023)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number0004106A0000000

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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