We have had a very productive and long-lasting relationship with Andrie, Michigan Diving Services have been maintaining multiple channels for Andrie for decades. Yearly we pull each channel buoy and maintain the physical integrity and appearance according to United States Coast Guard regulations. As well as geographical locations of the anchors, integrity of the anchors, chains, and shackles.
 

Aside from the channel maintenance we also have become an on-call option for emergency ship husbandry needs in Michigan. Including an emergency call from a freighter that sucked a fender into its propeller, a fouled spectra line in the propeller and an emergency hull inspection.