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2nd Avenue Bridge

2nd Avenue Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: October 2, 2011

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Key Facts

Facility Carried / Feature Intersected
2nd Avenue Over Thunder Bay River
Location
Alpena: Alpena County, Michigan: United States
Structure Type
Metal Railing Height Girder, Movable: Double Leaf Bascule (Strauss Trunnion) and Approach Spans: Metal Stringer (Multi-Beam),
Construction Date and Builder / Engineer
1939 By Builder/Contractor: W. J. Storen Company and Engineer/Design: Clifford E. Paine of Chicago, Illinois

Technical Facts

Rehabilitation Date
1988
Main Span Length
127 Feet (38.71 Meters)
Structure Length
261.8 Feet (79.8 Meters)
Roadway Width
40 Feet (12.19 Meters)
Spans
1 Main Span(s) and 5 Approach Span(s)
NBI Number
09200018000B050

Historic Significance Rating (HSR)

Bridge Documentation

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

This bridge is the only identified bridge in Alpena County with significant historic value. The bridge is a double-leaf bascule bridge with steel stringer approach spans. The simple railings composed of five horizontal angles connected to i-beam posts might give the initial appearance of modern replacement railings, especially since this bridge was built at a time when Michigan's ornamental type R4 railings were popular. However, a historical photo of the bridge shows that the  railings seen on the bridge are the original railings. The bridge tender building is relatively short in height, with the control room essentially at roadway level on the bridge. As such, unlike most bascule bridges, it is easy to look through the windows and see the control room. The control panels have been replaced and are of modern design. Otherwise, this bridge appears to have excellent historic integrity. It was a prize bridge winning an award from the American Institute of Steel Construction for its beauty in 1939, its year of construction. The bridge is a through plate girder bascule bridge, unusual in Michigan since most bascule bridges in Michigan are deck plate girders.

Above: Historical Photo of Bridge Soon After Completion

Source: Donald Harrison, http://www.flickr.com/photos/upnorthmemories/3356680498/, CC BY-NC-ND 2.0

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