SR 20 over Higgins Slough

Good Condition19 years old14,588 vehicles/day

Location

StateWashington
CountySkagit
Location1.2 E Jct SR 356
CarriesSR 20
CrossesHiggins Slough
Coordinates48.45123, -122.40789

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length64.0 ft (19.5 m)
Max Span61.0 ft (18.6 m)
Deck Width41.3 ft (12.6 m)
Deck Area245.7 sq m
Main Spans1
Year Built2007

Traffic

Avg Daily Traffic14,588 (2023)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last Inspection322
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number0017242D0000000

Nearby Bridges

SR 20 over Higgins Slough 0.0 mi Good SR 20 over Higgins Slough 0.6 mi Good SR 20 over Higgins Slough 0.6 mi Good SR 20 over Higgins Slough 0.9 mi Good SR 20 over Higgins Slough 0.9 mi Good SR 20 over Higgins Slough 1.1 mi Good SR 20 over Higgins Slough 1.1 mi Good Farm To Market RD over Drainage Ditch 1.7 mi Good SR 20 over Transmt. Oil Pipeline 2.3 mi Good Bay View-edison RD over Big Indian Slough 2.6 mi Fair