Observations of Washington State Landscapes, Geology, Geography, Ecology, History and Land Use
Wednesday, August 4, 2010
Dead cedars at Debris Flow Deposition Area
I had a small project up the Nooksack River Valley northeast of Bellingham this morning. On the way I glanced up the stream the sent a debris flow over the state highway in January 2009 closing the highway. I previously did a post HERE on this debris flow. One consequence of that event is that numerous trees in the debris flow deposition area have died. Western red cedar in particular does not like having its lower truck buried and I have observed dead cedars in older debris flow deposition areas. I don't have a perfect match photo but the same trees still alive can be seen in the January 2009 picture.
August 2010 view of dead trees along debris flow deposition area
January 2009 shortly after debris flow with trees still living.
The debris flow took place on the Mount Baker Highway just past the Truck Road intersection.
Dan McShane is an engineering geologist with Stratum Group, a geology and environmental consulting company based in Bellingham, Washington. Dan has been reading Washington State landscapes since driving across the Horse Heaven Hills with his father and brother in 1970. Dan's wife has started painting Washington landscapes. The intent of this blog is to help all Washington travelers better understand the landscapes we see and share field observations.