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Old 05-18-2015, 09:39 AM   #1
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Would you be concerned if your boat sat in mud at low tide?

New boat owner question...

I'm here in Portland Maine, got in a few days ago. The marina (slip) where I'm staying until October or so is very nice, quiet and has a beautiful view of the Portland skyline.
When we came in for the first time a few days ago at low tide we went aground as we were pulling into the slip. Since then I have noticed at max low tide I only have about 2 ft at the bow and 3.5 ft at the stern so that means at every low tide she will be sitting on bottom. I have not noticed it leaning at all and the bottom is soft mud. I know not to fire the engines at low tide. I draw 4ft 2 inch.
Thoughts
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Old 05-18-2015, 10:35 AM   #2
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Depends, we have a single screw with a full shoe and it should not be a problem. Even with this configuration I much prefer to never ground out. Twins are a much different issue.
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Old 05-18-2015, 10:41 AM   #3
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Quote:
Originally Posted by roguewave View Post
New boat owner question...

I'm here in Portland Maine, got in a few days ago. The marina (slip) where I'm staying until October or so is very nice, quiet and has a beautiful view of the Portland skyline.
When we came in for the first time a few days ago at low tide we went aground as we were pulling into the slip. Since then I have noticed at max low tide I only have about 2 ft at the bow and 3.5 ft at the stern so that means at every low tide she will be sitting on bottom. I have not noticed it leaning at all and the bottom is soft mud. I know not to fire the engines at low tide. I draw 4ft 2 inch.
Thoughts
I would be concerned if using any below waterline intakes. That would include head flushing, running reverse cycle heat pumps, and anything else. Also, clogging those intakes if not being used.
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Old 05-18-2015, 10:53 AM   #4
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That was my thought, clogging thru hulls while sitting. I'm leaving for a couple weeks so I'm going to have to deal with it

I have twins....
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Old 05-18-2015, 10:56 AM   #5
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I would be concerned. You never know what is sitting in the "soft" mud.

Even if there was no damage being done to the hull or prop(s), it would obviously limit the times of day when you can come & go.
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Old 05-18-2015, 11:36 AM   #6
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many boats dry out at low tide...saves on antifouling...

just a lowering tide wont do damage to a well found boat...as long as the bottom is sand or gravel...larger rocks and boulders are a different tune.

it wont do damage if the boat is in a well protected spot...chop beyond what will rock or lift and slam a boat is a different tune also.

your call ...but the knowledgeable locals are often the best source for an opinion.
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Old 05-18-2015, 11:43 AM   #7
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I've seen some bizarre corrosion issues on props and struts that sat in the mud. Galvanic things change in there.
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Old 05-18-2015, 12:33 PM   #8
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....... I much prefer to never ground out.
Yeh, so do I! Just kidding....I'd get another slip, if possible.
That sitting on the "Mud" thing can't be good for the boat.
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Old 05-18-2015, 01:40 PM   #9
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One of our boats is designed to sit on the bottom when the tide goes out--- it has twin keels that act as a stand. Our PNW boat, on the other hand, is a conventional twin-screw boat with dual rudders and while it has a keel we would not want it sitting on the bottom at low tide. This design of this particular boat is such that even if the water went all the way out and the boat ended up sitting on the keel and a chine the prop and rudder on the low side would not contact the bottom. But as others have said, you never know what's on the bottom and some of the raw water intakes on our boat are in positions that they would be liable to clogging or sucking in mud and muck if we started the engines or generator.

So we would not want this boat sitting on the bottom periodically at low tide.
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Old 05-18-2015, 02:13 PM   #10
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...I'd get another slip
Ditto...
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Old 05-18-2015, 02:32 PM   #11
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There is a profoundly easy solution that you seem to have missed.

BRING THE BOAT HOME TO TEXAS!!!!!'
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Old 05-18-2015, 02:43 PM   #12
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There is a profoundly easy solution that you seem to have missed.

BRING THE BOAT HOME TO TEXAS!!!!!'

Muuust.....explore......Maine....first
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Old 05-18-2015, 05:16 PM   #13
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In my first berth the boat was on mud the second day. (Parts of the marina had silted in and the documented berth depths were out-of-date.) Changed berths the next day. Thankfully, there were vacancies.
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Old 05-18-2015, 06:25 PM   #14
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Management should be willing to work with you on changing slips.
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Old 05-18-2015, 07:40 PM   #15
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It could accelerate hull fouling too. I hope you get a move.
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Old 05-18-2015, 07:41 PM   #16
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Muuust.....explore......Maine....first
Just watch out for the fog, ledges and lobster buoys on your exploration.
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Old 05-18-2015, 07:43 PM   #17
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Double up your lines, start the engines and idle ahead or back depending on which way you want the mud to run and dig yourself a shallow hole to sit in.
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Old 05-18-2015, 08:54 PM   #18
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On Cape Cod the town of Mashpee has/had a marina named Half Tide Marina for years, (no one could move if less than half tide). New fancy owner changed the name but not the depth. Personal dredging was done when no one was looking. Running in gear tied to dock.
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Old 05-18-2015, 08:58 PM   #19
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Seems common for trawlers. Note: this is not my picture, this was off the trawler photos page on FB.Click image for larger version

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Click image for larger version

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Old 05-18-2015, 09:08 PM   #20
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Talked to one of the owners today, they are gonna drag the slip and see how that does. At least he's willing to try. The spot is great for a new guy and the view is fantastic so I'm gonna see. The winter was brutal for marinas
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