12 Sep 2024

Chamber Lock Operational Option 3 awarded for New Lock at the Soo

U.S. Army Corps of Engineers, Detroit District’s New Lock at the Soo project in Sault Ste. Marie, Michigan, awards $222.7 million contract Option 3 (Chamber Lock Operational) to Kokosing Alberici Traylor, LLC (KAT) of Westerville, Ohio. The Option 3 award will allow for construction to proceed as required to have a fully functional lock. “Option 3 includes construction of the lock floor, installation of the mechanical and electrical systems, completion of the filling and emptying system, placing soil in between the New Lock and old Davis Lock, and commissioning of the lock chamber,” said Inland Navigation Design Center, New Lock at the Soo Technical Lead Darin White.  With the on-time award of Option 3, the project continues to be on track for completion in 2030.

1 Apr 2024

Infrastructure Innovation: New Poe Lock arrestor arm is the largest U.S. civil works component produced by 3D printer

As America’s civil works infrastructure ages, managers need innovative solutions to replace parts that have been in service for nearly a century. Often, these original components were fabricated using vintage material and manufacturing methods, making them costly, burdensome and time-consuming to replace. Responding to this need, the U.S. Army Corps of Engineers (USACE) is employing cutting-edge 3D printing techniques to manufacture these parts faster and at a lower cost while maintaining, and even improving, their properties. In early March, the USACE Detroit District installed the largest U.S. civil works infrastructure component produced by a 3D printer – a 12-foot-long metal part for the ship arrestor system on the Poe Lock, one of the two active locks on the Soo Locks facility. Building on years of research performed by the U.S. Army Engineer Research and Development Center (ERDC), the part was manufactured in 12 weeks, compared to a projected 18-month lead time for conventional manufacturing. The part was installed, tested and commissioned during the Soo Locks’ winter maintenance cycle. The rapid repair ensured normal operations at Poe Lock, a major transit point for domestic iron ore.

15 Dec 2022

MacArthur Lock closing for seasonal repair, maintenance

SAULT STE. MARIE, Mich., - The Soo Locks’ MacArthur Lock will close to marine traffic 7:00 a.m. Dec. 17, 2022, through 12:01 a.m. April 24, 2023, to perform critical maintenance. The Poe Lock will remain open until 11:59 p.m. Jan. 15, 2023, or until commercial traffic ceases, whichever occurs first. The operating season is fixed by federal regulation and is driven in part by vessel operability in typical ice conditions.  “The 800-foot-long MacArthur Lock, built in 1943, is 79 years old; the maintenance period is critical to keeping the lock in operation during the shipping season,” Maintenance Branch Chief Nicholas (Nick) Pettit said. Pettit, new Maintenance Branch Chief at the Soo Locks will oversee the team executing this year’s seasonal repairs.