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Ashland Avenue Calumet Sag Channel Bridge

Ashland Avenue Calumet Sag Channel Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: June 28, 2011

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Key Facts

Facility Carried / Feature Intersected
Ashland Avenue Over Calumet Sag Channel
Location
Blue Island: Cook County, Illinois: United States
Structure Type
Metal 10 Panel Rivet-Connected Parker Through Truss, Fixed and Approach Spans: Pre-Stressed Concrete Stringer (Multi-Beam), Fixed
Construction Date and Builder / Engineer
1932 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
1997
Main Span Length
250 Feet (76.2 Meters)
Structure Length
378.3 Feet (115.31 Meters)
Roadway Width
44 Feet (13.41 Meters)
Spans
1 Main Span(s) and 2 Approach Span(s)
NBI Number
16029404047

Historic Significance Rating (HSR)

Bridge Documentation

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

This bridge is an example of an older Calumet Sag Channel through truss. As an older bridge it uses only rivets and no bolts, and also uses v-lacing and lattice extensively on its built-up beams. These aspects give the bridge a superior geometric beauty to the many later truss bridges crossing the waterway. This bridge carries heavy traffic but remains in good condition overall. It appears that the piers were altered with supplemental supports that extend behind the piers, perhaps to prevent the piers from rotating into the channel over time. The approach spans have been replaced with pre-stressed stringer spans. The through truss span retains good historic integrity however.

Main Plaque

STATION 297 - 50

BUILT 1932 BY

STATE OF ILLINOIS

BOND ISSUE ROUTE 49

SECTION 146 - B2

Rehabilitation Plaque

STATION 1+000.000

REBUILT 1997 BY

STATE OF ILLINOIS

F.A.U. RT. 2857 SEC. 146 (B&C) 2 R-1

F.A. PROJ. ACDPU-DPU-STPM-0016(3)

LOADING MS18

STR. NO. 016-0294

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