How long should my subbase last?

Properly constructed, a subbase can last 30 years or more -- long enough to host three or four synthetic turf installations. As the foundation for your facility the subbase must perform several key functions:1. Provide a stable platform so game lines don't move and the field isn't lumpy.2. Ensure proper drainage -- the subbase must drain at 10"/hour or more for life.3. Support loads like vehicular traffic (snow plows, maintenance equipment, etc.) and static loads (stages).The bottom line on subbases: There are only a handful of qualified subbase contractors in the U.S.; on-the-job training is not recommended for such a critical aspect of your field system.