Concrete dams and spillways are used for high outflows of water and to keep water flowing in a direct path to prevent errossion.We still install them when it is the best solution ,there are many factors that determine their use. Over an existing stream bed and in the olden days it was a quick way to build a pond on flat terrain, such as a sunken plot of land to hold water

Scott


Scott Trava
Catskill Pond
http://catskillpond.com
scott@catskillpond.com
Returning Catskill Waters To A Simpler Time
EST. 1923