Structure 87211000000000 · King County, WA

16th AVE SW over Klickitat AVE SW Rr

Carries 16th AVE SW over Klickitat AVE SW Rr, 16th AVE SW & Klickitat.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,084 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,084 ft end to end, longest span 137 ft: about 3.0 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 multi-beam bridge.

Built200125 years old
Length1084.0 ft330.4 m
Daily traffic9,000counted 2023
Last inspectedSeptember 2023every 24 months

Location

StateWashington
CountyKing
Location16th AVE SW & Klickitat
Carries16th AVE SW
CrossesKlickitat AVE SW Rr
Coordinates47.57528, -122.35556

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1084.0 ft (330.4 m)
Max Span137.1 ft (41.8 m)
Deck Width45.6 ft (13.9 m)
Deck Area4592.6 sq m
Main Spans7
Year Built2001

Traffic

Avg Daily Traffic9,000 (2023)
Truck Traffic50%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number087211000000000

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.

Nearby Bridges