Structure 89213000000000 · King County, WA

SE 296th Pl over Olsen Creek

Carries SE 296th Pl over Olsen Creek, .02 Mi E Of 118th AVE SE.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT55 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 55 ft across. 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.

Built20188 years old
Length55.1 ft16.8 m
Daily traffic200counted 2021
Last inspectedMay 2023every 24 months

Location

StateWashington
CountyKing
Location.02 Mi E Of 118th AVE SE
CarriesSE 296th Pl
CrossesOlsen Creek
Coordinates47.33656, -122.18292

Physical Characteristics

MaterialPrestressed Concrete
DesignCulvert
Total Length55.1 ft (16.8 m)
Max Span54.1 ft (16.5 m)
Deck Width40.0 ft (12.2 m)
Deck Area205.0 sq m
Main Spans1
Year Built2018

Traffic

Avg Daily Traffic200 (2021)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical3 — Scour critical
Structure Number089213000000000

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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