NOTICE TO MARINERS
UPPER MISSISSIPPI RIVER BASIN
SECTION VII – GENERAL
This section contains information of general concern to the Mariners. Mariners are advised to use caution while transiting these areas.
MILE 763.8 - MILE 763.4 - CHANNEL CONDITION
Shoaling has been reported between approximate Miles 763.8 and 763.4. The navigation channel in the area has been reduced to approximately 260 feet. Mariners are urged to exercise caution in the area.
MILE 383.9 - BRIDGE CLOSURE/REPAIRS
Fort Madison Drawbridge; The bridge will be maintained in the closed-to-navigation position on April 3, 2022, from 7:00 a.m. until 5:00 p.m., for repairs. The bridge will open at noon to clear all vessels in the queue.
MILE 172.3 - MILE 172.0 - OVERHEAD HIGH WIRE OPERATIONS/SAFETY ZONE/INTERMITTENT RIVER CLOSURES
Continuing until approximately May 1, 2022, from 9:00 a.m. until 2:00 p.m., each day, weather permitting, Ameren Electrical Contractors are conducting high wire work and conductor removal/replacement operations in the vicinity of Mile 172.0. To facilitate these operations, the COTP Upper Mississippi River has issued a Safety Zone, extending between approximate Miles 172.3 and 172.0. Intermittent daily river closures are necessary to facilitate this operation. The time/duration of each closure will be dependent upon current conditions and the Safety Zone will be activated/deactivated each day and transmitted to mariners via VHF-FM Channel 16. Mariners may contact U.S. Coast Guard Sector Western Rivers, to request permission to transit this area. No vessel will be permitted to enter this Safety Zone, unless given permission by the COTP Upper Mississippi River.