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Home My WebLink About20200035 Ver 1_Site Visit Notes_20200218Liberty Rock February 18. 2020 DWR - Mac, Erin USACE - Kim, Todd WRC - Olivia DMS - Lindsay, Jeremiah WEI - Greg Turner, Shawn Wilkerson Stream & wetland project • 4 sq.mile drainage area; slate belt • Bordered by major road and railroad - easement goes to ROW boundaries • Cows offsite for 3 months • Mica creek - culvert start • Existing wetlands - 6-12" depressions (not quite ditches), pasture compaction, 2 open water areas • Soils discussion - hydric inclusions in low areas - reestablishment vs creation when less hydro manipulation • Three tribs - all spring fed - small drainage, intermittent, 2 preservation, 1 restoration • Rocky river start may be P2 unless can back water up 1' for 100' on Siler City land, channel incised, add structure? • Extra buffer - wooded, few to no invasives • Mica start - culvert perched, bring up, do work in the RR ROW but start credit setback, keep B channel? Bedrock spots, gravel & sand, restoration ok • Rocky river wetlands - soil sample definitively hydric, reestablishment & rehabilitation, more area wet than currently mapped, slightly raise depression areas • Rocky river channel - no buffer (small patches of privet & rose), not very incised (more so at bottom towards bridge), getting out into floodplain (wrack & significant sediment), banks cut lateral adding sediment to channel - not very stable, gravel, cobble, sand, bedrock, large sediment bars, some sinuosity - will increase, invasive parrot feather, basis for relocating channel is slightly raising bed, increasing floodplain access & wetland connection, creating stable banks • Olivia - on fence with restoration relocation due to ok bedform & mussels present • Schist - restoration, flowing well, bedrock present, will extend to new channel • Gypsum - preservation, small flow, upper channel ok, no defined channel at bottom - concern about flow / turning into a wetland, may need enhancement • Dolomite - preservation, remove culvert, enhancement lower reach- concern about keeping it a channel (not a wetland) • Wrap-up - JD important for wetlands, tribs channel connections important, large buffers & no crossings - very good, Olivia to key out mussels