NE Alderwood Road over B-113 X Columbia Slough

Fair Condition37 years old6,741 vehicles/day

Location

StateOregon
CountyMultnomah
LocationAt N E Cornfoot Road
CarriesNE Alderwood Road
CrossesB-113 X Columbia Slough
Coordinates45.57215, -122.58518

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway5 (Fair)
Scour Critical4 — Foundations need monitoring

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length47.9 ft (14.6 m)
Max Span44.9 ft (13.7 m)
Deck Width44.0 ft (13.4 m)
Deck Area195.6 sq m
Main Spans1
Year Built1989

Traffic

Avg Daily Traffic6,741 (2020)
Truck Traffic25%
Lanes On Bridge2

Inspection & Ownership

Last Inspection724
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number25B113000000000

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