Umptanum Road over Wilson Creek

Fair Condition60 years old5,039 vehicles/day

Location

StateWashington
CountyKittitas
Location00.41 E I-90
CarriesUmptanum Road
CrossesWilson Creek
Coordinates46.98082, -120.55156

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length37.1 ft (11.3 m)
Max Span36.1 ft (11 m)
Deck Width29.9 ft (9.1 m)
Deck Area102.8 sq m
Main Spans1
Year Built1966

Traffic

Avg Daily Traffic5,039 (2020)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last Inspection324
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number081209000000000

Nearby Bridges

Umptanum Road over Anderson Slough 0.3 mi Fair I-90 over Umptanum RD 0.4 mi Poor I-90 over Umptanum RD 0.4 mi Good Anderson RD over Mercer Creek 0.4 mi Good I-90 over Wilson Creek 0.5 mi Poor I-90 over Wilson Creek 0.5 mi Fair I-90 over Canyon RD & Bnsf Rr 0.6 mi Fair I-90 over Canyon RD & Bnsf Rr 0.7 mi Fair Umptanum Road over Yakima River 0.8 mi Fair Railroad Avenue over Mercer Creek 0.8 mi Fair