|   
    Custom Search
   | 
 | 
|   | ||
|  still be an option. The wood can be covered with plastic instead of treated with a preservative. Although at least 20 years of successful exposure testing is generally required to instill confidence in waterfront users, enough information on the performance of plastic-covered wood piling is now available to warrant the development of interim technical guidance on its usage. The program should consist of (1) the development of Navy specifications since there are no industry standards, (2) the use of these specifications to treat and install specified prewrapped and precoated piling, and (3) an evaluation of the practicality of adapted specifications. 8 |  | |
|  | ||