Fall 2018 – Upper GRT

Written by Greg Scheirer

CHANGES/THINGS TO NOTE:

WS10 (‘Big Woods’ in Montgomeryville): Monitored in September and October. Observed no change/continued minor bank erosion which is resulting in point bar and island deposition. However, the creek seems to be relatively well-connected to the adjacent floodplains and should not pose flooding risk. There are no structures or roads located near the creek, so it should be able to continue its natural meander without significant consequence. Additionally, seasonal changes in riparian vegetation caused small leaf packs to be observed in the creek, and all other conditions appeared relatively normal and stable.

WS20 (Wissahickon Park in Lansdale): Monitored in September. Observed no change/continued minor bank erosion. Riparian vegetation was still lush. Tree trunk washed into the creek causing minor blockage of the stream flow. Some increase bank erosion between the block wall and the tree.

WS30 (Hancock Road Park): Not monitored at this time.

WS40 (Dickerson Road): Not monitored at this time.

WS50 (‘Merck Bridge’ to North Wales Road): Monitored in September and October. Observed no change/continued bank erosion. Additionally, seasonal changes in riparian vegetation were observed, and all other conditions appeared relatively normal and stable.

WS60 (North Wales Road to Evans): Not monitored at this time.

NEEDS ATTENTION:

Erosion: Erosion, along with the associated deposition, can be caused by numerous factors, the main two being stream discharge and sediment supply. These two factors are intimately influenced by a large number of conditions within the watershed, as well as the stream channel. Fluvial activity is generally a normal process within stream channels; however, accelerated and excessive erosion and deposition can lead to increased flooding, and impact stream water quality and aquatic habitat.

Metal Pipe: From the photos at WS-10 (downstream), it appears a metal pipe has been discarded into the stream. It does not appear that this pipe serves any functional purpose.

 

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