Geosynthetics October/November 2019 - 29

$7 million, and the final cost was close
to $10 million due to change orders
caused by severe winter storms, which
eroded project sand and resulted in project delays. Construction was completed
in March 2016 and a post-construction
site visit was conducted to compare the
reconstructed site to the conditions following Hurricane Sandy.
On the east coast of Nantucket,
the Siasconset Beach community has
experienced significant erosion of
coastal bluffs, leaving historic homes,
the Sankaty Head lighthouse and local
roads vulnerable. Surveys of the site
began in 1994 prior to the installation
of an upgrade to an existing dewatering

system designed to redirect water
flow and reduce erosion rates (Buck
and Hamilton 2017). Since that time
more than 70 surveys have been completed to monitor the impact of the
dewatering system upgrade (completed
in December 2001) and subsequent mitigation measures. In 2013-2014, 853 feet
(260 m) of geotextile tubes (Figure 2)
were installed to replace the dewatering
system and reduce erosion. This effort
was coordinated and funded by SBPF.
Due to expressed concerns from the
Nantucket Conservation Commission
and the general public about the transfer of erosion to the flanking areas and
steepening of the beach profile in front

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www.GeosyntheticsMagazine.com

29


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Geosynthetics October/November 2019

Table of Contents for the Digital Edition of Geosynthetics October/November 2019

Geosynthetics October/November 2019 - Cover1
Geosynthetics October/November 2019 - Cover2
Geosynthetics October/November 2019 - 1
Geosynthetics October/November 2019 - 2
Geosynthetics October/November 2019 - 3
Geosynthetics October/November 2019 - 4
Geosynthetics October/November 2019 - 5
Geosynthetics October/November 2019 - 6
Geosynthetics October/November 2019 - 7
Geosynthetics October/November 2019 - 8
Geosynthetics October/November 2019 - 9
Geosynthetics October/November 2019 - 10
Geosynthetics October/November 2019 - 11
Geosynthetics October/November 2019 - 12
Geosynthetics October/November 2019 - 13
Geosynthetics October/November 2019 - 14
Geosynthetics October/November 2019 - 15
Geosynthetics October/November 2019 - 16
Geosynthetics October/November 2019 - 17
Geosynthetics October/November 2019 - 18
Geosynthetics October/November 2019 - 19
Geosynthetics October/November 2019 - 20
Geosynthetics October/November 2019 - 21
Geosynthetics October/November 2019 - 22
Geosynthetics October/November 2019 - 23
Geosynthetics October/November 2019 - 24
Geosynthetics October/November 2019 - 25
Geosynthetics October/November 2019 - 26
Geosynthetics October/November 2019 - 27
Geosynthetics October/November 2019 - 28
Geosynthetics October/November 2019 - 29
Geosynthetics October/November 2019 - 30
Geosynthetics October/November 2019 - 31
Geosynthetics October/November 2019 - 32
Geosynthetics October/November 2019 - 33
Geosynthetics October/November 2019 - 34
Geosynthetics October/November 2019 - 35
Geosynthetics October/November 2019 - 36
Geosynthetics October/November 2019 - 37
Geosynthetics October/November 2019 - 38
Geosynthetics October/November 2019 - 39
Geosynthetics October/November 2019 - 40
Geosynthetics October/November 2019 - 41
Geosynthetics October/November 2019 - 42
Geosynthetics October/November 2019 - 43
Geosynthetics October/November 2019 - 44
Geosynthetics October/November 2019 - 45
Geosynthetics October/November 2019 - 46
Geosynthetics October/November 2019 - 47
Geosynthetics October/November 2019 - 48
Geosynthetics October/November 2019 - 49
Geosynthetics October/November 2019 - 50
Geosynthetics October/November 2019 - 51
Geosynthetics October/November 2019 - 52
Geosynthetics October/November 2019 - 53
Geosynthetics October/November 2019 - 54
Geosynthetics October/November 2019 - 55
Geosynthetics October/November 2019 - 56
Geosynthetics October/November 2019 - Cover3
Geosynthetics October/November 2019 - Cover4
Geosynthetics October/November 2019 - Blank1
Geosynthetics October/November 2019 - GeoConf20_1
Geosynthetics October/November 2019 - GeoConf20_2
Geosynthetics October/November 2019 - GeoConf20_4
Geosynthetics October/November 2019 - GeoConf20_5
Geosynthetics October/November 2019 - GeoConf20_6
Geosynthetics October/November 2019 - GeoConf20_7
Geosynthetics October/November 2019 - GeoConf20_3
Geosynthetics October/November 2019 - GeoConf20_8
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