Pratt through truss. The Bridge Street Bridge in Portland is a rare two-span metal through truss, with two spans 100 feet in length, featuring decorative treatment at the end posts. This is the oldest known surviving example of a truss bridge built in Michigan by the Groton Bridge and Manufacturing Company of Groton, New York, a significant Eastern bridge manufacturing firm. It was listed as eligible for the National Register of Historic Places in April, 1986.
Editor's Note: The NRHP list shows the Bridge Street Bridge added to the list in 1980.
Dimensions
Length of largest span: 105.0 ft.
Total length: 205.0 ft.
Deck width: 15.1 ft.
Recognition
Posted to the National Register of Historic Places on August 29, 1980
Also called
Veterans Memorial Bridge
Approximate latitude, longitude
+42.86977, -84.90405(decimal degrees) 42°52'11" N, 84°54'15" W (degrees°minutes'seconds")
NRHP 80004843 (National Register of Historic Places reference number)
MINBI 344552000015B01 (Michigan bridge number on the National Bridge Inventory 2010 and before)
MINEW 04103 (Michigan bridge number on the National Bridge Inventory 2011 and later)
BH 20064 (Bridgehunter.com ID)
Inspection report (as of August 2018)
Overall condition: Fair
Superstructure condition rating: Satisfactory(6 out of 9)
Substructure condition rating: Good(7 out of 9)
Deck condition rating: Good(7 out of 9)
Sufficiency rating: 61.7 (out of 100) View more at BridgeReports.com
Categories
Update Log
September 22, 2021: New Street View added by Paul Plassman
April 17, 2016: New photo from Art Suckewer
September 2, 2012: New Street View added by James Baughn
August 13, 2008: New photos from J.R. Manning
Sources
HAER MI-41 - Bridge Street Bridge, Spanning Grand River
J.R. Manning - thekitchenguy [at] sbcglobal [dot] net