LAKE MICHIGAN - CHICAGO HARBOR
General / Bridges / Maintenance
IL - LAKE MICHIGAN – Chicago Harbor From August 25, 2025, through October 30, 2026, between the hours of 0700 and 1600, Monday through Saturday, three barges, 90-feet by 50-feet or smaller will be working at the Cortland Street Bridge at Mile 4.48 (CORPS MILE 328.2) over the North Branch of the Chicago River. The barges will move with a 2-hour advance notice provided directly to the barges on VHF-FM Marine Channel 16. [31/25]
Position 41-55.02N 087-39.85W
USCG Great Lakes District Local Notice to Mariners 43/2026