Wednesday, March 5, 2014

White Wing Bunker Update


The greenside bunkers at White Wing have been a hot topic for some time. Since the installation of the new bunker liners and replacement of the old sand we have been experiencing less than desirable results and maintenance issues with the renovated traps. After laboratory tests we found that it has a low pentrometer rating for use as bunker sand. A pentrometer tests the firmness of the sand which translates to how likely the ball will bury or have a “fried egg” lie.  The USGA recommends that the number be close to a 2.5 or higher. The sand that was tested by the lab came back with a lower number than what is recommended. We tried to incorporate other sand in an attempt to bring this number up. Also we removed sand as it was too deep in some areas with little to no luck.  In late 2013, the decision was made to shell out, or remove, this undesirable sand and begin searching for something that would be firmer, allowing for better bunker performance. Also during this time we were able to address any liner issues that we were having and make repairs to some of the bunker edges as needed. We have since made the decision to go with sand from Osburn Materials based in San Antonio. This same sand is being used in the bunkers at TPC San Antonio with positive feedback. Director of Maintenance Gary Wilson paid a visit to that location to see this sand in place, talk to the Director of Maintenance there about the sand and even hit some balls out of the bunker for a true test. At this time we are putting the new sand in the front nine bunkers and will continue to monitor the sand depth as they compact and are used. The old sand is being saved and can be used for numerous other projects such as filling rough areas on the driving ranges and topdressing greens and fairways this summer. The plan is to have this project completed by the end of March.