Structure 84141000000000 · Skagit County, WA

Conc Sauk Valley R over Sauk River

Carries Conc Sauk Valley R over Sauk River, 0.14 NW Jct SR 530.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT304 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

304 ft end to end: about 4 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 through truss.

Built1930rebuilt 1953
Length304.1 ft92.7 m
Daily traffic158counted 2020
Last inspectedMarch 2024every 24 months

Location

StateWashington
CountySkagit
Location0.14 NW Jct SR 530
CarriesConc Sauk Valley R
CrossesSauk River
Coordinates48.40657, -121.55890

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length304.1 ft (92.7 m)
Max Span225.1 ft (68.6 m)
Deck Width16.1 ft (4.9 m)
Deck Area454.2 sq m
Main Spans1
Year Built1930 (reconstructed 1953)

Traffic

Avg Daily Traffic158 (2020)
Truck Traffic11%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number084141000000000

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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