On Monday, CN will begin the second and final year of a major maintenance and strengthening project on the Oliver railroad bridge over the St. Louis River between Duluth and Oliver.
The bridge strengthening project, part of CN’s 2017 capital program, is a major investment in the continuing safety and efficiency of CN’s Wisconsin and Minnesota railroad network.
The bridge work included in 2017 is as follows:
· Full replacement of the 47-foot-long Span 1 on the east end of the bridge
· Removal of the steel cross ties and steel deck which carries the rail
· Installation of new solid timber deck to carry the rail
The bridge work will prompt daytime closures of the roadway beneath the rail bridge connecting Wisconsin Highway 105 to Minnesota Highway 39. The highway portion of the bridge will be closed to traffic between 8 a.m. and 5 p.m. Monday through Friday. The daily closures are expected to continue into the fall.
About the bridge
· Double deck 1,935 foot-long steel, multi-span bridge
· Railroad upper deck with two-lane highway below
· 31 plate girder spans and one through truss span with single track between Duluth and Oliver
· Carries approximately 20 trains a day
· Built in 1910 connecting Spirit Lake Transfer Railway in Minnesota with the Interstate Transfer Railway in Wisconsin