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| Virgin Creek Floodplain Delineation Working with Alaska Center for the Environment and Turnagain Arm Conservation League, the Conservation Center collected GPS points to delineate the Virgin Creek Floodplain. Matt Berman and Jason Geck mapped the extent of the historic floodplain by walking along well-defined flood channels, recording our positions with high-resolution GPS technology. The flood channels we followed contained no vegetation other than moss, ferns and, in places, devils club growing on gravel. The absence of trees and brush within these channels confirmed that they have been subject to potentially damaging floods within the past 100 years. USGS maps of Girdwood still show an active channel running along the north boundary of our mapped flood plain. Soil and vegetation maps printed in the Golf Site Study depict floodplain soils and riparian vegetation closely corresponding to our mapped southern boundary. This independent evidence increases our confidence in the validity of our flood plain map. This action is to seek open space protection for lands adjacent to the three creeks in the lower valley from a proposed golf course in Girdwood. More information available from Matt Berman's Testimony Download the PDF (virgincreek.pdf, 912 Kb) |
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Map by Jason Geck.