Dredging operations on the River Chet will be undertaken from Monday, 13 April, until Friday, 1 May, 2015, according to the Broads Authority.
During this period dredging will be in operation between 08:00 and 16:00 daily, excluding weekends, and during each period of operation delays of up to 2 hours may occur with the dredging rig taking up much of the navigational width.
Mariners must await clear instructions from the dredging crew before attempting to pass, stated the Authority.
All equipment will be lit and signage will be in place to warn of restriction and delays.