Reported Shoaling-Black River, Upper Peninsula MI

By Tessa Andres | June 23, 2023

Notice Number: 202895/L23-13
Date: UNTIL FURTHER NOTICE

1. Recent project condition surveys at Black River, Upper Peninsula, MI, indicate shoaling in the navigation channel.

2. Shoaling is present at the entrance of the channel throughout project stationing 02+00 to 06+00 with depths ranging from 0 to 9.5 feet above
project depth. Project depth for the outer navigation channel is authorized to 12.0’ below International Great Lakes Datum (IGLD85), Low Water
Datum (LWD).

Additional shoaling is present throughout project stationing 09+00 to 14+00 with depths ranging from 0 to 5 feet above project depth within the inner
harbor navigation channel. Project depth for this reach of navigational channel is authorized to 8.0’ below International Great Lakes Datum
(IGLD85), Low Water Datum (LWD).

3. The most recent project condition survey is attached to this notice.

4. Questions regarding this notice may be directed to the Duluth Operations Manager, Steven Brossart at (218) 788-6402. Our internet address is:
https://www.lre.usace.army.mil.Missions/Operations/

//signed//

CYNTHIA A. JAREMA
Chief, Operations & Maintenance Branch
USACE-Detroit

Posted in Navigation Notice: Great Lakes River Basin