One Rock Dam

One-rock-dams are usually built in a channelized drainage or below a zuni bowl. These structures are built from one edge of the channel to the other, with a low point in the middle. Rocks are stacked one rock high in multiple rows and hammered in place. This acts as a physical barrier to slow down water and collect sediment. As sediment builds up behind each structure over time, we can revisit the site, build another layer of structures on top of the originals, and continue rebuilding the channel.