Pond Boss Forums GENERAL QUESTIONS Property Projects & Construction Help finalizing dock project please

We secured a full regulation sized water ski jump by using rope, eyebolts and cement anchors. It's hard to explain by typing, but I'll try. The 4 corners are RF, LF, RR, LR. Each corner had a big eyebolt attached to it on the bottom, under water. We used (I forget the weight, but they were BIG) cement blocks as anchors. The anchor for the RF corner was out to the left of the LF corner, the anchor for the LF corner was out to the right of the RF corner. Same way with the anchors for the rear corners. The lake never varied much in water depth, so it worked for us that way. The jump was in about 15' of water.

The ropes crossed each other, but didn't rub on each other. That way that it was anchored, it didn't twist with the wind or boat waves.

I've seen the same design used for BOW's that fluctuated in depth, but instead of an eyebolt, a pully was on each corner and there was a pretty substantial weight holding down on the end of the rope that wasn't attached to the cement block on the bottom. The swinging weight was positioned on the rope so that it stayed off of the bottom of the lake during normal water level fluctuation.

I realize that the rope method of anchoring isn't very friendly to fishing line, or fishing from the dock.

Using the drill stem, in 30' of water depth would, would allow the dock to sway side to side a good amount, plus you'd have to drive them a good ways into the pond bottom for stability. It'd be better if you could run some "X" braces between the drill stems under water, but that'd probably require a SCUBA diver and some specialized hardware. If you DO do the "X", make sure you tie the center of the "X" together. It will greatly add to the rigidity of the bracing.