The New York Department of Transportation has established a temporary navigation channel to the west of the center of the Lake Champlain Bridge between piers 3 and 4. This navigation channel is marked by the following buoys: Green Lighted Buoy LB 1 in position 44-01.94N 073-25.46W, Red Lighted Buoy LB 2 in position 44-01.92N, 073-25.48W, Green Lighted Buoy 3 in position 44-01.91N, 073-25.37W, Red Lighted Buoy LB 4 in position 44-01.88N, 073-25.39W, and Red Lighted Buoy LB 6 in position 44-01.87N, 073-25.21W. The purpose of the temporary navigation channel is to allow vessels to transit through the bridge construction area during heavy-lift operations. Vertical clearance over the temporary navigation channel is reported to be 55 feet when the lake is 98 feet ordinary high water level. All mariners are advised to exercise caution when transiting this area. .