Notice to Navigators: Upper Mississippi River

RIAC: UM172 channel closed 0900-1400 today 21MAR


This closure is on track for 0900-1400 today 21MAR, USCG will be broadcasting a notice on ch16.


Sent: Sunday, March 20, 2022 4:34 PM

The channel was back open to traffic about 1430 today.USCG announced the reopening on ch16 at that time Tentative for another 0900-1400 closure tomorrow 21MAR


Sent: Sunday, March 20, 2022 7:16 AM

The closure is on track to start at 0900 today. USCG will broadcast this info on ch16 soon

Sent: Saturday, March 19, 2022 2:48 PM

Work complete for today, the channel is open, USCG broadcasting same on CH16  Another closure planned for tomorrow Sunday 20MAR  0900-1400


Sent: Saturday, March 19, 2022

1:19 PM This closure may take until 1500 today now, completing 2 of the 16 helicopter crossings needed to complete this work. The USCG will announce on vhf ch16 when the channel is reopened, and I will send an email when I am made aware by the contractor.


Sent: Saturday, March 19, 2022 7:13 AM

As of 0700 this morning, today’s (19MAR) 0900 to 1400 closure is scheduled to occur.


Sent: Friday, March 18, 2022 9:03 AM

Raining at the job site, the river closure for today is cancelled.


Sent: Friday, March 18, 2022 7:25 AM

For now, this is still a go for 0900 today 18MAR, closure to 1400


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