Lower American River Sites - Bank Protection Sites

RM 1.8L

April 16, 2004 - River Mile 1.8L

This Bank Protection Project is located on the American River 1.8 miles upstream of the confluence with the Sacramento River on the south bank (left bank) and is just downstream of State Highway 160 (location map). The site was identified as a critical emergency levee repair site in 2003. Approximately 750 linear feet of riprap revetment was placed along the waterside toe of the levee both above and below the water line. The upper levee slope in this area was previously rip-rapped during the American River Common Features Project. An onsite re-vegetation plan was initiated following construction and is a required conservation measure of the project.

September 2010 - River Mile 1.8L



The three main components of the re-vegetation plan are 1) a continuous row of vegetation along the shoreline with plants common to central valley riparian ecosystems including: ash, sycamore, alder and willow species, 2) protect the vegetation from beaver pruning by establishing a combination of barrier fencing and individual cages and 3) naturally occurring cottonwoods, alders and willows will be caged as an added measure to encourage vegetation development.

Annual Reports:    2007  -   2008  -   2009  -   2010 

RM 10.0L

March 17, 2004 - Brush Boxes at River Mile 10.0L

This project is located along the south bank of the American River upstream of Watt Ave Bridge at the Waterton Access. The site was identified as a critical emergency levee repair site in 2003. The project area is 130 feet in length and varies in width from 30 to 50 feet. Initial site design involved the construction of a series of brush & log boxes which were subsequently vegetated to stabilize an unstable horizon of erosion prone sand. Not long after construction, vandals destroyed several of the constructed features at the river's edge.

October 10, 2016 - River Mile 10.0L



These features were abandoned in favor of traditional rip rap erosion protection, installed in 2006, which was subsequently covered with cobbles and then soil for aesthetic purposes. Since this site is a popular access point for recreation the shoreline path continued to erode so some larger rocks shaped like blocks were installed in 2010 to help stablize the bank and path. Habitat features at this site include a combination of woody and herbaceous plants scattered across the site slopes.

 


From left to right: October 10, 2006, April 12, 2007, and May 21, 2010