Photo taken by C Hanchey in August 2011
BH Photo #208091
Built by the State of Michigan and the U.S. Army Corps of Engineers in cooperation with the Copper Range Railroad and the Duluth, South Shore and Atlantic Railroad. The double-deck, vertical lift bridge originally carried vehicular traffic on the top deck and railroad traffic on the bottom deck. Rail traffic ceased in 1982. Today the vertical-lift span sits in the intermediate level nine months out of the year while vehicular traffic crosses the old railroad deck allowing most small boats to pass under the bridge. In the winter the bridge is lowered and made accessible to snowmobiles and skiers, while vehicles cross on the upper deck.
- Vertical lift bridge over Portage Lake on US 41 between Houghton and Hancock
- Houghton, Houghton County, Michigan
- Open to traffic
- Built 1960 by the American Bridge Division of the U.S. Steel Co.
- - American Bridge Co. of New York
- - Copper Range Railroad (COPR)
- Vertical lift
Length of largest span: 269.0 ft.
Total length: 1,310.1 ft.
Deck width: 53.8 ft.
Vertical clearance above deck: 14.2 ft.
- Also called
- Portage Lake Bridge
- Approximate latitude, longitude
- +47.12391, -88.57405 (decimal degrees)
47°07'26" N, 88°34'27" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 16/380609/5220135 (zone/easting/northing)
- Quadrangle map:
- Average daily traffic (as of 2015)
- Inventory numbers
- MINBI 31131012000B010 (Michigan bridge number on the National Bridge Inventory 2010 and before)
MINEW 03380 (Michigan bridge number on the National Bridge Inventory 2011 and later)
BH 20056 (Bridgehunter.com ID)
- Inspection report (as of June 2017)
- Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 44.9 (out of 100)
View more at BridgeReports.com
- November 20, 2015: New video from Douglas Butler
- October 21, 2015: New photo from Gene Smania
- November 28, 2014: Updated by Luke: Added categories "Copper Range Railroad", "Rail-to-trail", "Open to Snowmobiles"
- October 5, 2014: New photo from Douglas Butler
- November 21, 2013: New Street View added by J.P.
- October 28, 2013: Photo imported by Roger Deschner
- August 25, 2013: New photo from J.R. Manning
- March 13, 2011: New photos from Robert Thompson