Structure 87791000000000 · King County, WA

NE Tolt Hill RD over Snoqualmie River

Carries NE Tolt Hill RD over Snoqualmie River, 0.5 Mi W Of Sr-203.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT962 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

962 ft end to end, longest span 307 ft: about 2.7 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 through truss.

Built200818 years old
Length961.9 ft293.2 m
Daily traffic3,200counted 2022
Last inspectedMarch 2023every 24 months

Location

StateWashington
CountyKing
Location0.5 Mi W Of Sr-203
CarriesNE Tolt Hill RD
CrossesSnoqualmie River
Coordinates47.63797, -121.92953

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length961.9 ft (293.2 m)
Max Span307.1 ft (93.6 m)
Deck Width45.9 ft (14 m)
Deck Area4104.8 sq m
Main Spans2
Year Built2008

Traffic

Avg Daily Traffic3,200 (2022)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number087791000000000

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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