Table A1 (Continued) 



Event 



Date 



Detail 



Source 



Repair 



1947 



800-ft stone revetment on west side and 130-ft stone groin 

 added to north end by N.Y. State, Suffolk County, and Town 

 of Southampton. 



USAED, New York 

 1988 



Storm 



Nov 25, 1950 



Three breaks (washovers) occurred east of Quogue, opening 

 into Shinnecock Bay. A new inlet formed at Westhampton 

 beach. 



Leatherman and 

 Joneja 1980 



Channel 



1951 



Suffolk County dredged 9- by 200-ft channel 2,000 ft long 

 through "inner sandbar" (flood shoal?). 



USAED, New York 

 1988 



Jetties 



1953-1954 



NY State, Suffolk County, and Town of Southampton built 

 stone jetties on both sides of inlet. E. Jetty: 1,360 ft; W. Jetty: 

 850 ft (total length now 950 ft). Width of inlet fixed at 800 ft. 



USAED, New York 

 1988, Nersesian and 

 Bocamazo 1992 



Hurricane Carol 



Aug 31, 1954 



Carol devastated east jetty and bayside revetment. Land 

 adjacent to east jetty flooded by storm surge. Revetment 

 damage caused by ebb of storm surge from bay. West of 

 inlet, large zone of overwash extended across barrier island. 



Nersesian and 

 Bocamazo 1992 



Channel 



1958 



Bay channel 1 by 200 ft dredged from inlet to Intracoastal 

 Waterway by local interests. Subsequent maintenance in 

 1963, 1973, and 1978. 



Nersesian and 

 Bocamazo 1992 



Hurricane Donna 



Sep 12, 1960 



Donna caused numerous washovers. By 1960, the 

 Shinnecock jetties had resulted in little erosion or accretion. 

 Well-defined shoal in bay. 



Leatherman and 

 Joneja 1980 



Federal project 

 authorized 



1960 



Existing project at Shinnecock Inlet adopted by the River and 

 Harbor Act of July 14, 1960 (H. Doc 126, 86th Cong., 1st 

 sess.). "This provides for an entrance channel 1 feet deep 

 and 200 feet wide, from that depth in the Atlantic Ocean to 

 Shinnecock Bay, thence an inner channel, 6 feet deep and 

 100 feet wide to the Long Island Intracoastal Waterway, 

 rehabilitation of existing jetties and revetments, seaward 

 extension of the west jetty about 900 feet, and construction of 

 a fixed by-passing facility to transfer sand from the east side 

 of the inlet to the west side." Authorized for three project 

 purposes: 



1. Navigation. 



2. Water quality. 



3. Beach erosion protection. 



Ann. Rept. of Chief of 

 Engr. 1961 



Sediment budget 



1961 



BEB study concluded 300,000 yd 3 /year to west. 



Taney 1961 



Cost estimate 



1961 



$3,551 ,000 estimate to complete work. 



Ann. Rept. of Chief of 

 Engr. 1962 



Ash Wednesday 

 Storm 



Mar 4-6, 1962 



Responsible for over 50 breaks (washovers) between Fire 

 Island Inlet and Southampton. Notable offset at Shinnecock 

 Inlet: west side eroded, accretion along east side. 



Leatherman and 

 Joneja 1980 



Westhampton 

 groins 



1964-1966 



1 1 groins built by USAED, NY, along Westhampton Beach 

 (=7 miles west of inlet). 



USAED, New York 

 1988 



(Sheet 3 of 5) 



A4 



Appendix A Chronological List of Geological Events 



