01/30/2024 HARBOR MANAGEMENT COMMITTEE Minutes

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Tribal Historic Ways Urban Harbors Institute(UHI)is working on scheduling individual meetings with tribal elders, to learn more about historic ways lost to development and land transfers. Chief Earl Mills, Vernon "Buddy" Pocknett, Derek Mills, and Norman Dias are willing to be interviewed. • Woods Hole Group: Seconsett Island Causeway Dack Stuart,from Woods Hole Group presented on Seconsett Island Causeway: Conditions and Recommendations: o Seconsett Island Road is the only road providing access to Seconsett Island and the homes, businesses, public facilities, and marina located there. 0 8/14/23 =Woods Hole Group Professional Engineer,Engineer in Training and Coastal Scientist toured site with Ashley Fisher. o Notes,photos and survey-grade GPS data collected, conducted interview with Ashley fisher. o One section of the roadway lies at the top of a stone revetment facing Waquoit Bay and frequently experiences storm wave overwash during winter storms. o The revetment is used for dinghy storage for accessing the adjacent mooring field. o One section of the roadway lies at the top of a stone revetment facing Waquoit Bay and frequently experiences storm wave overwash during winter storms. o The revetment is used for dinghy storage for accessing the adjacent mooring field o WHG Professional Engineer on-site said it's in "Fair to poor condition" o Maintenance being undertaken by DPW,spreading loose cobble and pebbles to fill in gaps at top of revetment. o The use of small pebbles should be discontinued as they are not being retained(see left figure) o Larger chinking stone would be better—4-6"or 6-12"to fill gaps and prevent washout. o Toe stones should be buried several feet below grade to prevent undermining and destabilization of the structure. o Note use of homemade skids to prevent the revetment from damaging dinghies. These can contribute to marine debris if they break loose or fall apart. o Dinghies have blown over the metal guardrail in high wind and surf conditions, becoming a road hazard. o WHG Professional Engineer on-site said it's in "Fair to poor condition" o Maintenance being undertaken by DPW, spreading loose cobble and pebbles to fill in gaps at top of revetment. o The use of small pebbles should be discontinued as they are not being retained(see left figure) o Larger chinking stone would be better—4-6"or 6-12"to fill gaps and prevent washout. o Toe stones should be buried several feet below grade to prevent undermining and destabilization of the structure. o Note use of homemade skids to prevent the revetment from damaging dinghies. These can contribute to marine debris if they break loose or fall apart. o Dinghies have blown over the metal guardrail in high wind and surf conditions, becoming a road hazard. Main Conclusions: 0 Professional engineer rates the revetment as "fair to poor condition."