Mountain Loop Hwy. over S.f. Stillaguamish River

Fair Condition72 years old824 vehicles/day

Location

StateWashington
CountySnohomish
Location18.2 E Jct SR 92
CarriesMountain Loop Hwy.
CrossesS.f. Stillaguamish River
Coordinates48.07101, -121.65531

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length210.0 ft (64 m)
Max Span161.1 ft (49.1 m)
Deck Width29.2 ft (8.9 m)
Deck Area569.6 sq m
Main Spans1
Year Built1954

Traffic

Avg Daily Traffic824 (2019)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last Inspection624
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Structure Number082915000000000

Nearby Bridges

Rd. No. 4030 over Mallardy Creek 0.1 mi Good Mountain Loop Hwy. over Boardman Creek 1.2 mi Fair Rd. No. 4032 over Mallardy Creek 1.2 mi Fair Mountain Loop Hwy. over Schweitzer Creek 2.2 mi Fair Mountain Loop HWY over Marten Creek 2.2 mi Good Mountain Loop Hwy. over Wisconsin Creek 2.9 mi Fair No Data Entered over Black Creek 3.2 mi Fair Mountain Loop HWY over Black Creek 3.2 mi Fair Whitton Av. over S.f.stillaguamish River 3.9 mi Fair Mountain Loop Hwy. over Twentytwo Creek 4.5 mi Fair