Structure 84255000000000 · Skagit County, WA

Old HWY 99 North over Friday Creek

Carries Old HWY 99 North over Friday Creek, 4.3 N Jct Cook Rd..

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT122 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 5/9 · sets the ratingSubstructure 7/9

122 ft end to end, longest span 50 ft. 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.

Built195670 years old
Length122.0 ft37.2 m
Daily traffic2,682counted 2021
Last inspectedMay 2023every 24 months

Location

StateWashington
CountySkagit
Location4.3 N Jct Cook Rd.
CarriesOld HWY 99 North
CrossesFriday Creek
Coordinates48.56692, -122.33458

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length122.0 ft (37.2 m)
Max Span49.9 ft (15.2 m)
Deck Width29.9 ft (9.1 m)
Deck Area338.5 sq m
Main Spans3
Year Built1956

Traffic

Avg Daily Traffic2,682 (2021)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number084255000000000

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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