Click on any image to view larger

A large area of my property lays between a low, flat parcel with a pond and a high, flat golf course with many ponds. Over the centuries the ponds above carved creeks through my property to create / reach the pond below. About5 years ago genius me decides that if I dam to the creeks I can have a pond here also. after years of toil (had to clear 5 acres of dense tress and under growth) I come to the conclusion that you can not dam up water on a hillside. But, during heavy rains I do have a nice pond for a few days until the water seeps under the 2 dams I constructed. Now here's the issue I come to Tim for: one of those creeks cuts through the only access road I have to a entire corner of my property. While building my brain-storm that creek has deepened and now I need a bridge. So genius me figures If I can drop a concrete pipe into it that will allow me to drive over it and that will do. So I go to Lowes and ask for a 10" to 12" pipe. No go, they don't handle over 4 inches. Same at Home Depot. Then I go to the Town. They ran me around and around but never got a pipe. Then I look online and lo and behold! many companies that do plastic and resin but can't find what I need. Gosh! This is frustrating! Tim, what would you do in this mess?

Click on any image to view larger