When the Soo Canal was completed at Sault Ste. Marie in 1855, the journey through the rapids of the St. Mary’s river went from seven weeks of arduous portaging to seven minutes through the newly constructed State Locks.1 Over the next century, four locks would be constructed, repaired, and replaced, leading to more tons of … Continue reading The Mighty Soo: Construction of the Locks at Sault Ste. Marie, Michigan
