Umptanum Road over Anderson Slough

Fair Condition44 years old6,083 vehicles/day

Location

StateWashington
CountyKittitas
Location0.1 W. Anderson Rd.
CarriesUmptanum Road
CrossesAnderson Slough
Coordinates46.98097, -120.55721

Condition Ratings

Overall ConditionFair
Channel/Waterway5 (Fair)
Culvert5 (Fair)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length22.0 ft (6.7 m)
Max Span8.9 ft (2.7 m)
Deck Width39.0 ft (11.9 m)
Deck Area79.7 sq m
Main Spans2
Year Built1982

Traffic

Avg Daily Traffic6,083 (2022)
Truck Traffic25%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number086730000000000

Nearby Bridges

I-90 over Umptanum RD 0.1 mi Poor I-90 over Umptanum RD 0.2 mi Good Umptanum Road over Wilson Creek 0.3 mi Fair Anderson RD over Mercer Creek 0.4 mi Good Umptanum Road over Yakima River 0.5 mi Fair I-90 over Wilson Creek 0.6 mi Poor I-90 over Wilson Creek 0.7 mi Fair Railroad Avenue over Mercer Creek 0.8 mi Fair I-90 over Canyon RD & Bnsf Rr 0.9 mi Fair I-90 over Canyon RD & Bnsf Rr 0.9 mi Fair