Elk Creek Watershed Council, Umpqua Basin, Oregon


Gilliland Erosion Control Upland Improvement

Poor management started erosion in a small draw in this pasture. This turned into a deep gully when cattle began using the pools of water that collected in the gully for water. With designs developed by the Douglas Soil and Water Conservation District Engineer, the watershed council implemented a project that pulled back the edges of the gully and constructed rock check dams in the steepest gradients. Grass waterways were designed to hold the soil in the rest of the pasture as the water makes its way to the creek.

1/13  This gully was actively eroding and carrying the soil into Coles Valley Creek.
2/13  Looking up the main gully from the intersection.
3/13  Lower part of the main gully looking toward the intersection.
4/13  Rock check dams were constructed in the main gully to slow down the runoff and reduce its erosive force.
5/13  In the lower section, the old drainage tiles were removed and the banks pulled back.
6/13  Constructing a check dam in the upper part of the main gully.
7/13  The slope of the grass waterway in the lower section was designed so that the grass would slow the runoff enough to prevent further erosion even in high flows.
8/13  Coconut fiber mats were placed above the check dams to allow the grass seed to take hold.
9/13  The intersection of the gully and the lower section has been smoothed and planted with grass seed.
10/13  The lower section where the drain tiles were removed.
11/13  The upper check dams before the fall rains.
12/13  Lower check dams.
13/13  The upper check dam after the grass has started growing.