Restoration Techniques: Construction

Explore the Construction stage of restoration here or visit the Bioengineering and Floodplain pages.

There’s no way around it — river restoration construction is kind of messy for a while. But in the end the result is well worth the temporary disturbance. Here is an illustrative example from the Jocko River in Montana.
Restoration Progress
Photos 30 and 31 were taken during construction in the summer of 2006. Both photos show the construction of vegetated soil lifts.

Photo 32 was taken at the beginning of the first full growing season in the spring of 2007. The different methods of erosion control produced varying results the first growing season. A coir blanket created a more uniform surface for seed germination while another surface that had only compost and seed applied produced a patchier distribution of vegetation.

Photo 32 shows the same site in the summer of 2007. Annual grasses and forbs colonized the slope in a pretty uniform way. Some weed species were present and manual weed control was required during the first few growing seasons. Just a few years later in 2010 (photo 34) you can see a band of vegetation along the bank and a much richer mosaic of vegetation.

Photo 35, also taken in 2010, four years after construction, shows the view of the same site taken from downstream, looking upstream. At this stage willows have grown to ten feet tall along some of the vegetated soil lifts.

While these examples are from a different location and river system from the Kootenai River, they do provide an illustration of the general progression of construction and restoration.

30...........31


32...........33

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Kootenai Tribe of Idaho
P.O. Box 1269
Bonners Ferry, ID 83805
Phone: 208-267-3519

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