Structure 89280000000000 · King County, WA

Main ST over Stormwater Facility

Carries Main ST over Stormwater Facility, 0.01 W Jct 151 Pl.

Overall conditionGood

Set by its lowest-rated component: Culvert at 8 of 9.

How ratings work
Culvertsets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT89 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 89 ft across with 7 openings. 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, so those are drawn as typical for a culvert.

Built20215 years old
Length88.9 ft27.1 m
Daily traffic13,683counted 2021
Last inspectedSeptember 2023every 24 months

Location

StateWashington
CountyKing
Location0.01 W Jct 151 Pl
CarriesMain ST
CrossesStormwater Facility
Coordinates47.60985, -122.13804

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length88.9 ft (27.1 m)
Max Span16.1 ft (4.9 m)
Deck Width13.5 ft (4.1 m)
Deck Area111.1 sq m
Main Spans7
Year Built2021

Traffic

Avg Daily Traffic13,683 (2021)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number089280000000000

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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