Powerhouse Road over Cowiche Creek

Good Condition96 years old7,000 vehicles/day

Location

StateWashington
CountyYakima
Location00.09 S Naches Hgts
CarriesPowerhouse Road
CrossesCowiche Creek
Coordinates46.62712, -120.58097

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length44.0 ft (13.4 m)
Max Span21.0 ft (6.4 m)
Deck Width25.6 ft (7.8 m)
Deck Area104.5 sq m
Main Spans2
Year Built1930

Traffic

Avg Daily Traffic7,000 (2023)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last Inspection123
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Structure Number080981000000000

Nearby Bridges

US 12 over Cowiche Creek 0.2 mi Good US 12 over Naches River 0.4 mi Fair US 12 over Naches River 0.4 mi Fair Powerhouse Road over Naches River 0.5 mi Good Powerhouse Road over Low Flow Channel 0.5 mi Good US 12 over W-w Ramp 0.8 mi Good Cowiche Canyon Ln. over Cowiche Creek 0.8 mi Good US 12 WB On-ramp over Pp&l Canal 0.8 mi Good US 12 over Ramp & Bnrr (abandoned) 0.9 mi Fair US 12 over W-e Ramp 1.0 mi Good