Mountain Loop HWY over Sauk River

Good Condition43 years old650 vehicles/day

Location

StateWashington
CountySnohomish
Location9.0 SE Darrington
CarriesMountain Loop HWY
CrossesSauk River
Coordinates48.17172, -121.47313

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway7 (Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length169.0 ft (51.5 m)
Max Span125.0 ft (38.1 m)
Deck Width37.1 ft (11.3 m)
Deck Area582.0 sq m
Main Spans1
Year Built1983

Traffic

Avg Daily Traffic650 (2021)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last Inspection524
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number086521000000000

Nearby Bridges

Rd. No. 22 over White Chuck River 0.1 mi Good Mountain Loop HWY over Dutch Creek 0.8 mi Fair No Data Entered over Conn Creek 3.3 mi Fair Rd. No. 23 over Stujack Creek 3.6 mi Good Rd. No. 24 over No Name Creek 4.7 mi Good