About a week ago I went down to check out a section of the project work done back in 2011 and 2012 some distance downstream of the Eagleville Covered Bridge in Shushan, NY. It was a beautiful walk and I found our structures intact and working well.
The main goal of the structures in this area is to create a narrow winding flow of the main current within the existing channel. The river has been over wide and shallow along here. We put in rock and log vanes angled upstream in places along here. These function to protect the banks and focus the fastest and deepest current into the center of the riverbed.This ultimately creates better trout habitat and it is better for landowners in preventing bank erosion.
I also stopped by the site downstream of the Rte 313 bridge near the NY/VT border near Hickory Hill Road. We installed a series of log/rock vanes angled upstream to create curvature and narrow the main flow. We also put in a kind bunker of logs and stone to rebuild a floodplain shelf.
Photos first show site downstream of Eagleville, showing the field lane down to the river, one of the rock vanes looking upstream, and a series of vanes looking downstream. Then there are photos of the 313 bridge site, showing the rock/tree vanes, the "bunker" shelf, anglers under the big bridge, and the replanted buffer zone on top of the floodplain bunker structure.
Cynthia Browning, BKWA, 6/27/14