I KNOW I'm asking the wrong croud BUT !

I would guess this is a jet boat question How do you get off a sand bar or a gravel bar or even a submerged island?
I carry a 12 volt 1500 lb winch 200 feet of cable and rope, a snatch block, two long handle shovels buck saw,two sets of chest waders and a small parachute. ALL of which I have used. Once and a while a good shove will work. In the right conditions when the current is running the right way I can lay the shoot out in the water and let the water pull us of( Be careful in heavy currant!!). If its a tree or something like that the saw can be used but that really sucks. On the sand it's just like getting your 4X4 stuck in the mud, you just got to shovel her out. I can use the winch if I can get a good wench point( almost never) I have wenched a lot of trees out of the ground but when it works it's easy. Just looking for more ideas...

If it isn't a flat bottom, I find the boat floats easier on its side, so all my gear goes onto one side to "tip" the other side over.

I seldom run aground in fresh water, but in unknown sallows in saltwater, I do get her stuck.  then waiting for high tide is the best.

Going down river is usually  bad as the current is against you.  Also often times it is better to go back the way you got there, because forward direction is often times shallower!!!

If you have tidal or river current, I dig at the down current end, as the current washes the dirt/gravel out..helping you.  My Florida boat is flat bottom and very shallow, but I've got it stuck.  Often thought a gas operated pump would let you "jet" a channel of water under the boat to "dig" out  under the boat with the current carrying the dentris down stream.

A friend grounded his 20' Grady one day and the wind had it sitting on gravel/rock bottom in 12 inches of water.  I used my largest  "special" anchor and carried it out to 5 foot of water and thru it another 4 foot out.  Anchor is 20 pound  Danforth.  the flukes bit and I was able to use a come-a-long to winch using the anchor as a dead man.  It worked and then I was alone on a shallow bar having to dive  and get the danforth out.  the heavy anchor worked like a wet dead-man.  If I had not gotten it out after pulling him off, I'd have tied a boat fender to the end of the anchor line as a float; and gotten my big boat to put it out backwards.

I know this doesn't help, but the trick is to not run it aground.   And as you know once you are in shallows you have to decide "give it more" and run across, (maybe go more shallow)  OR  cut the throttle clear it with min-draft ( and maybe sit tight)?  tough decision to be made in 1 second or less.

BEAR wrote: The trick is to not run it aground.   And as you know once you are in shallows you have to decide "give it more" and run across, (maybe go more shallow)  OR  cut the throttle clear it with min-draft ( and maybe sit tight)?  tough decision to be made in 1 second or less.

 And going 30 or 40 mph with no brakes...

remember the color rhyme?

Blue, Blue go on thru

Green, green might be mean slow on down

Brown, brown run a ground 

Green

BEAR wrote: remember the color rhyme?Blue, Blue go on thruGreen, green might be mean slow on down Brown, brown run a ground

 Our water is never blue on the Missouri it's alway a shade of moss green or a shade of MUD

 Once and awhile it will look kind of purple when there is a ROCK ledge under the water waiting to open up your boat like a can of green beans.

Irish Bird Dog wrote: Is there a "AAA" for boats?????? ie: "ABA"

The Swedish pop music group? I think they broke up back in 1983. Doubt if they know much about boats anyway.

I think the high volume water pump has some merit. My son uses a similar technique to excavate trenches under water to run cables etc. Don't know what the DNR might say about downstream silt levels though. RD