I-5 over Portage Creek

Good Condition56 years old47,995 vehicles/day

Location

StateWashington
CountySnohomish
Location1.9 N Jct SR 531
CarriesI-5
CrossesPortage Creek
Coordinates48.17919, -122.19492

Condition Ratings

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

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length120.1 ft (36.6 m)
Max Span29.9 ft (9.1 m)
Deck Width55.4 ft (16.9 m)
Deck Area618.5 sq m
Main Spans5
Year Built1970

Traffic

Avg Daily Traffic47,995 (2023)
Truck Traffic8%
Lanes On Bridge3

Inspection & Ownership

Last Inspection322
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0008631B0000000

Nearby Bridges

I-5 over Portage Creek 0.0 mi Fair Smokey Point BLVD over Portage Creek 0.1 mi Fair 200th ST NE over I-5 0.2 mi Good Smokey Point BLVD over South Slough 0.3 mi Fair SR 530 over I-5 0.7 mi Good I-5 over Stillaguamish R 1.4 mi Fair I-5 over Stillaguamish River 1.4 mi Fair Pioneer Highway over Thomsen Slough 1.9 mi Fair SR 531 over I-5 1.9 mi Fair 212 TH ST NE over Portage Creek 1.9 mi Good