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    Featured Video

    Soo Locks Last Ship of 2023-2024 Shipping Season

    The Philip R. Clarke was the last ship through the U.S. Army Corps of Engineers' Soo Locks in Sault Ste. Marie, Michigan for the 2023-2024 navigation season on January 16, 2024. The Clarke enters the Poe Lock from Lake Superior, lowers 21 feet in elevation in the lock chamber and heads downstream to offload a shipment of iron ore pellets at a steel mill on the lower Great Lakes.

    Taken: 01.16.2024 | Video by Carrie Fox

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    Recent Images

    MacArthur Lock Seasonal Closure

    MacArthur Lock Seasonal Closure
    12.12.2024 | Photo by Carrie Fox
    The M/V Vlieborg locks trough the MacArthur Lock in Sault Ste. Marie, Michigan on Dec. 12, 2024 heading to Montreal, Canada. The Soo Locks’...
    New Lock at the Soo blasting radius

    New Lock at the Soo blasting radius
    11.07.2024 | Courtesy Photo
    Marine traffic on the St. Marys River in Sault Ste. Marie, Michigan will not be allowed within 1,000 feet (shown in blue) at the time of any...
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    Recent Videos

    On the Level: Episode 7

    On the Level: Episode 7
    05.17.2022 | Video by Carrie Fox
    In this episode, from the shores of Lake Superior, Detroit District Watershed Hydrology Section Chief Keith Kompoltowicz discusses the latest...
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    Recent News Stories

    Soo Locks Closing for Seasonal Repair, Maintenance
    01.14.2025 | Story by Carrie Fox
    The Soo Locks in Sault Ste. Marie, Michigan will close to all marine traffic beginning 11:59 p.m. January 15, or until commercial traffic ceases, through 12:01 a.m. March 25 to perform seasonal critical maintenance. Federal regulation (33 CFR 207.440) establishes the operating season based on the feasibility of vessels operating during typical Great Lakes ice conditions. “Every year, the Corps of Engineers uses the non-navigation...
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    Recent Publications