Great Lakes Dredge & Dock Company’s 315 foot dredger “Terrapin Island” is making its way to Humboldt and will be arriving around May 19 to begin dredging operations in the bar and entrance channels of Humboldt Bay. Mariners are advised to use caution when transiting near the dredge. The dredge will be restricted in their ability to move and the prop wash may be extreme. The dredge will be operating on VHF channel 13 and 16. For more information, contact the Suzie Howser at the Harbor District office at 707-443-0801.