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Natural Retaining
wall to prevent erosion at Site 6
by
Abhay Aggarwal
Troop
379, Fremont |
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My Eagle Project consisted of creating two parallel retention walls
on a hillside in Tule Ponds at Tyson Lagoon, mainly to prevent
erosion along the trail. My project began by first clearing the
hillside of the brush, namely the blackberry bushes and the small
tree that had inhabited the site. I then had to prepare the site by
drilling postholes using an auger across the hillside, going 3 feet
deep for a solid foundation. We then placed the completed sections
of the retention wall (there were 4 in all) into the postholes,
using quick-dry concrete to strengthen the wall. The terraces that
were created as a result then had to be leveled with soil, along
with additional log walls along the edges to prevent erosion. The
final stage was to cover the area with woodchips and plant shrubs to
naturally hold down the hillside.
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| area before terracing |
clearing area |
This project would not
have been possible without the support of certain organizations
throughout this process. The first was of course the Tule Ponds Wetland
Center that graciously provided monetary support and the tools and
support necessary throughout the construction. Cresco Xpress was also
very helpful, providing both the chainsaw and auger free-of-charge to me
as a Scout, reducing our costs. The bulk of the workforce consisted of
scouts from my troop, Troop 379, who came every weekend to help finish
the project. I would also like to thank my parents and Dr. Blueford for
helping throughout this rewarding experience.
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