Isabella ST over N Shore Channel

Fair Condition118 years old1,300 vehicles/day

Location

StateIllinois
CountyCook
Location1 M E Green Bay P6
CarriesIsabella ST
CrossesN Shore Channel
Coordinates42.06875, -87.68639

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length175.9 ft (53.6 m)
Max Span70.9 ft (21.6 m)
Deck Width40.0 ft (12.2 m)
Deck Area653.9 sq m
Main Spans3
Year Built1908 (reconstructed 1977)

Traffic

Avg Daily Traffic1,300 (2022)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number016695000000000

Nearby Bridges