Notice to Navigators: Upper Mississippi River

RIAC RE: USACE STL 2022-2023 winter closures

 

As info…

 

Bernie Heroff
Port Captain Navigation/Training
ARTCo – Ag Services and Oilseeds
American River Transportation Co., LLC
P.O. Box 2889
Saint Louis, MO 63111
t 314 481 8828 / m 314 803 4644

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A summary from our call that you can blast out to everyone for awareness and comment.

 

St. Louis District Closures, Winter 2022-23

  • Lock 24: 75-90 days, starting 1 Jan 2023 (Start can be earlier with Industry concurrence) Dewater Chamber, repairs to the gates from towboat accidents. Repairs will require that the gates be removed.  Corps is continuing to work the schedule and will make every effort to shorten the closure and/or coordinate intermediate openings with opportunities at L25.

 

  • Lock 25: 90 days, starting 1 Jan 2023 (Start can be earlier with Industry concurrence) In 2021 the lower guide wall cribbing work was deferred in order to open the lock early upon completion of the gate anchorage replacements. These are areas where scour and wheel wash have washed out the protective stone inside the cribbing and in 3 areas exposed the wood timber piles. The execution of this work has not gone as planned with high river stages and flows causing delays in setting forms and pouring/curing concrete caps over the repaired areas. Concurrent with completion of this work will be repairs to the miter gates to damages caused from accidents. The gates will not need to be removed, but will have to be de-tensioned.  Corps is continuing to work the schedule and will make every effort to shorten the closure and/or coordinate intermediate openings with opportunities at L24.

 

  • Mel Price Main Lock: 75-90 days, starting 1 Jan 2023 (Start can be earlier with Industry concurrence) Final schedule will be determined after contract is awarded. Phase I construction modification of overlook piers to accommodate new upstream liftgate. The aux lock will remain open.

 

  • Locks 27 Main Lock: 75 days, starting 1 Jan 2023. Main Lock Miter Gate Anchorage Replacement. The aux lock will remain open.

 

We will continue to work these schedules and NTNIs will be posted following Industry input on start of closures.

 

Andrew Schimpf, P.E.
Rivers Project Manager
Navigation Business Line Manager
(314) 630-6280
email: andrew.c.schimpf@usace.army.mil