This week I'll be starting to do work on some land I own in Higuey. First thing is to install an 8ft. long 1ft. diameter PVC pipe in a zanja in front of the entrance to the property. Of course, the idea is to level the entrance for vehicle passage while retaining road water drainage integrity. What is this work called so that I can get some info on the Net? Does anyone have useful operational info? Most importantly, I'm looking for the best way to secure the pipe against theft. Thanks.