A look at bunker removal

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Over the years, given a tightening budget, I’ve been removing bunkers here at Westchester Golf Course in Canal Winchester, Ohio, about 15 miles southeast of Columbus.

The 18-hole semiprivate course was designed by Michael Hurdzan, with Bill Kerman as the lead architect. When the course opened in 1997, we had 73 bunkers, which was fairly typical at the time.

Those 73 bunkers occupied 2.02 acres, translating to about 1,520 tons of sand — by some standards, a manageable number of bunkers to maintain. In reality, though, with each bunker having a seven-year life span, we were renovating 10 bunkers per year, moving 217 tons of sand in and out. Fast-forward a few years, and 12 golf courses had been built within 20 miles of Westchester GC. The competition for golfers became even more evident when the economic downturn hit in 2008.

I’ve been at Westchester since its beginning, and we initially had about 32,000 labor hours per year. As each year passed, I was asked to reduce, reduce and reduce. Today, we target 16,000 hours. As the total number of hours spent in the bunkers decreased, the number of bunker-related complaints increased. We needed to curb the complaints by reducing the total amount of sand we were maintaining. (For me, as superintendent, it’s less important how many sand-filled craters are on the course. I’m concerned about the amount of sand filling those craters.)

Pinpoint the bunker’s purpose

Removing bunkers means sculpting the land for years to come, affecting every golfer’s perception of the course’s playability. The art of bunker removal comes in the planning and the understanding of why the architect placed a bunker in a location in the first place. Was it to prevent a lost ball and a penalty to help speed up play? Was it to protect an adjacent property? Was it for alignment? Was it for a penalty? Did those little trees finally grow up, and the bunker is now obsolete?

You must determine how eliminating a specific bunker will influence playability, as well as how you want the hole to play without the bunker — harder, easier or the same. Given that the complexity of the sand shot is being removed, I take other forms of challenge into consideration. (I’ve replaced a bunker with a mound to obscure the surface of the green, for example, and have increased the height on the green-bordering side of a bunker so the top of the flag isn’t visible.)

On a cold day in January 2010, I set out to visit Kerman at his office — fortunately, just 25 miles from Westchester GC — armed with copies of the layout of each hole. My goal was to cut the amount of sand at the course by 50 percent. My crew and I were only able to put about half the amount of time into the bunkers as was needed, so we came up with the 50 percent cut in sand based on that observation. Kerman helped me determine which bunkers could go or could be reduced without significantly impacting the difficulty of his original design.

If you don’t have access to the original designer, I’d recommend contacting a local golf course architect. Many would be happy to come out and give you a hand in assessing the situation. At a recent turf seminar, two architects kindly offered their assistance with bunker removal should I need it.

Prep for bunker removal

You have your strategy. Now, where to start? Pick the bunker that causes you the most grief — the one you hate walking into, the one your crew hates. (Ideally, this will be a bunker your golfers aren’t fond of either.)

Visit the bunker and take photos. It may be a muddy mess thanks to overdue renovation, lack of time to fix washouts, or financial restrictions that prevent just getting enough sand in the darn thing, but use your photos to visualize how you’d like the area to look when all is said and done. Adjusting the images in Photoshop or with another photo-editing tool can be helpful.

Golf course bunker removal

Removing golf course bunker
Final sod preparation (top) and sod installation (bottom) for a 2016 bunker removal project on Westchester’s fourth fairway.

For each bunker slated for elimination, you must decide whether to leave the depression, fill it in flat or mound it. Unless you put a flat spot where a bunker used to be, you’ll have slopes to contend with that, when the bunker was initially built, were not intended for golf cart traffic. You’ll be changing this space to an invited location for cart operation, so before beginning any work, consult your carts’ operators manual for the percent slope or angle degree for safe operation. Make sure your slopes are below that.

Now, what will it take to get the bunker you originally photographed to look like the final goal? You want to ensure that what you replace the bunker with will be lower-maintenance and that upkeep can be done with existing equipment. Take into consideration what equipment you already use to mow this area. In general, I try to make fairway bunkers softer for our rough mower. Greensides have more undulations, as we use smaller mowers. The point is: Don’t create a new job.

I treat every bunker project as its own small renovation, regardless of whether we’ll be replacing the sand or shifting to grass. In a nutshell, you’ll take out the old sand; remove, repair and replace the drainage; and edge the sides. At the end, consult the powers above you on whether to go with sand or no sand.

If no sand, bunker edges need to be transitioned to the bottom. We use an 8-foot-long, 1-by-2-inch piece of lumber as a straightedge to follow the existing slope to meet the bottom. Paint a hash mark, and while you’re there, put a level on the piece of lumber to check that the slope isn’t more than your carts’ maximum slope value for safe operation. If it’s too high, soften the slope until it meets your needs. Continue around the entire bunker until you have an outer fill area.

You can haul in new material to fill the area — it should match the existing material as closely as possible — or, at Westchester, we’ve shaved a steep but shallow slope using a tractor and rototiller, and this generates the needed material while also softening the slope. Such areas must be checked often until they’re sodded, to make sure the altered slope or grade can be easily maintained. A good mechanical sand rake operator is handy here to push the fluffy material where you need it. We’ve also used composted homemade topsoil made of silt, bunker sand and grass clippings rototilled together. We let it sit over the winter and rototill it again to create the “fluff” for fill and final grade.

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