November 7, 2013

Drainage Upgrades

For those of you who played the course any this year a day or two after one of our big spring or fall rainstorms, you can surely understand the need for more drainage on our course.  While it would be nice to add drainage to the entire course, there are really only a few spots we need to concentrate our efforts in order to make a big difference

A bunker pond after a June rainstorm

Way too much water, and difficult to get rid of

Almost the entire right rough on 6 about 150 yard to the green
and in was standing water during June.

Bunkers in particular are a major concern.  Since they are completely shaped out of clay underneath the sand, they are essentially just a giant bathtub after a rain.  Even after a moderate rainfall, we have to pump out usually about 30 of our 45 bunkers, a huge waste of man hours, plus the fact that repeated pumping starts to destroy the integrity of the bunker.  As of this fall, we have installed drainage (perforated pipe covered with gravel, and then covered with a synthetic liner material to keep the rock separate from the sand above) in 14 bunkers.  We took the opportunity this week to actually continue those drains to daylight somewhere so that they are finally functional.

Secondly, holes 6 and 11 were in desperate need of some additional drainage.  There was some drainage installed on hole 6 back in the early 90s I believe, but after having located and dug up a few of those pipes, the old perforated pipe was either mostly or completely filled with soil, rendering them ineffective.  We started in the worst area, front left of 6 green, by adding a 12" sump basin in the lowest point, and then trenching a 3" drain line about 160' across 6 fairway to the sump basin in the right rough, which then empties into the drainage canal that parallels hole 2.

Hole 11 received some help as well in the trench it shares with holes 12.  After shooting a ton of grade points, I determined that the trench doesn't and can't even actually drain its self.  The farm ditch on the other side of 12 cartpath is actually higher than the lowest point in the trench.  We installed a 12" sump in the lowest point of the trench, which happened to be in the rough about ten feet right of 11 fairway.  We then added french drains (perforated pipe covered with pea gravel, and then sand all the way to the surface) in both directions of the trench.  We will still have to pump the trench out after a large rain, but the sump basin should make that process much easier, and the french drains will help dry out the rest of the trench, especially in 11 fairway where it has always been wet and devoid of any real turf cover.


Going to work on hole 6

French drain line going up the trench in 11 fairway

Bunker drain on 11

After 2 straight days running the trencher, my arms feel like jello...

Also, we have been harvesting the huge pile of old, flooded bunker sand that is piled up in the native area behind 6 tee, and using to fill in some of the really bad settled trenches in other areas of the golf course.  That has been one of my huge complaints about this course since I have been here, you can hardly drive a cart through the rough on some holes without bouncing your golf clubs off the cart.  By filling the trenches with sand, the drains can still function underneath, and the grass should easily grow back and fill the areas in this coming spring with the help of a little additional seeding.
Andy filling in old drainage lines in the right rough on 6


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