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MEMORANDUM
DATE April 14, 2025 Project No. 2023-0169
TO Great Island Homeowners Association
Attention: Craig Fleming
1100 Great Island Road
West Yarmouth, MA 02673
(508) 775-4888
craig@gihacapecod.com
FROM Alex Carbone
Woods Hole Group, Inc.
107 Waterhouse Road
Bourne, MA 02532
Direct Phone: (508) 495-6213
acarbone@woodsholegroup.com
Sent via Email to: craig@gihacapecod.com, mkent@roughsketchllc.com, cynthia@lamington.net
Re: Construction Monitoring Report for Roadway Stabilization Project at Great Island, South Yarmouth, MA
General Contractor: Site Supervisor / Construction Team Lead:
Crawford Land Management Nick Crawford
88 MA-6A Unit 2B Crawford Land Management
Sandwich, MA 02563 (715) 497-2266
(508) 477-1346 nick@crawfordlm.com
Project Manager Construction Monitor:
Chris Gloninger Alex Carbone
The Woods Hole Group, Inc. The Woods Hole Group, Inc.
(508) 495-6217 (508) 495-6213
cgloninger@woodsholegroup.com acarbone@woodsholegroup.com
General Description of Activities:
Pre-Construction Meeting
On Friday March 14th, 2025, an on-site pre-construction meeting was held at the project area located on Great Island Road in Yarmouth, Massachusetts (Figure 1). Meeting attendees included
representatives from Woods Hole Group, Crawford Land Management, Yarmouth Conservation Commission, and the Great Island Homeowners Association. Approved plans, construction methodology,
and schedule for the installation of the fiber roll array were discussed and agreed upon by present parties.
Mobilization and Site Preparation
On Monday March 17th, Crawford’s crew began mobilizing heavy equipment and materials to the project area. Equipment on-site included a front-end loader, bobcat skid-steer, and two mini-excavators.
On Tuesday March 18th work began within the project area. Existing stones against the coastal dune were raked seaward using a mini-excavator to allow access to the fiber roll install
area. It was discussed with Crawford that these stones were to be placed back against the dune surface following fiber roll array installation. Bulk sand bags remaining from the 2024
emergency placement effort were removed from the project area. Sand from within the bulk bags was staged for beneficial re-use in covering fiber rolls after install.
Excavation and Installation of Fiber Roll Array
On Wednesday March 19th, a trench was excavated for installation of the fiber roll array (Figure 2). Fiber rolls were placed in roughly design arrangement to check depth of the trench.
Mirafi filter fabric was placed and along length of the trench (Figure 3). The lower three fiber rolls were placed over the filter fabric along the length of the trench (Figure 4).
On Thursday March 20th, duck bill anchors and associated cable loops were driven into the subgrade beneath the fiber rolls. 900g woven coir fabric was placed over the array prior to
tightening of cables (Figure 5). The final, top row of fiber rolls were installed over the lower three, with cables tightened securing the entire fiber roll array in place (Figure 6).
Sand Placement, Demobilization and Planting
Between Friday March 21st and Monday March 24th, staged stones, sand from bulk bags, as well as nearby dredge spoil piles was utilized to cover over the fiber roll array to meet the
design profile using a bobcat skid-steer (Figure 7). All equipment and construction materials were demobilized from the site by Tuesday March 25th. The following week, a planting crew
installed bare-root beach grass culms at 1’ O.C. throughout the dune (Figure 8).
Site Photographs: See attached photos below.
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Figure 1. Pre-construction conditions at site meeting on March 14, 2025.
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Figure 2. Trench excavated along length of project area for fiber roll array install.
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Figure 3. Filter fabric placed and stapled in place over excavated trench.
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Figure 4. Fiber rolls being placed by excavator over filter fabric.
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Figure 5. Woven coir fabric placed over fiber rolls prior to final row, cable installation.
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Figure 6. Fiber roll array secured in place after anchoring, tightening of cables.
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Figure 7. Project area after re-placement of existing stone, cover with staged sand.
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Figure 8. Project area after demobilization and beach grass plantin