Continuation of Gravel Extraction from Toklat
The Toklat floodplain within the extraction area contains landforms such as elevated areas which provide an excellent source of material. However, use of the only currently approved method of "mirror channel excavation" does not mimic how normal river processes act within this type of landform and have resulted in impacts that have not met replenishment or eradication standards.
The CE modifies the original EA language to allow for the use of additional extraction methods when they are appropriate for the floodplain landform being excavated.
This CE will allow continued gravel extraction from the Toklat River per the 2003 EA for a Gravel Acquisition Plan for Denali National Park and Preserve, through 2016 when it will be re-evaluated. The CE will also allow the use of additional extraction methods which mimic natural river patterns within the extraction area and enhance recovery or eradication of visible impacts.