Structure 81052000000000 · King County, WA

Drive Uhlman RD E over Greenwater River

Carries Drive Uhlman RD E over Greenwater River, 0.2 Mi NE Of Sr-410.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT105 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

105 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a girder bridge.

Built197353 years old
Length105.0 ft32 m
Daily traffic80counted 2023
Last inspectedJuly 2023every 24 months

Location

StateWashington
CountyKing
Location0.2 Mi NE Of Sr-410
CarriesDrive Uhlman RD E
CrossesGreenwater River
Coordinates47.15594, -121.65153

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length105.0 ft (32 m)
Max Span102.0 ft (31.1 m)
Deck Width12.1 ft (3.7 m)
Deck Area118.4 sq m
Main Spans1
Year Built1973

Traffic

Avg Daily Traffic80 (2023)
Lanes On Bridge1

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical3 — Scour critical
Structure Number081052000000000

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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