d. Winthrop, Massachusetts. 



^^^'"^"Sm.. ^^i . 





Figure 37. View of breakwater from nortiieast, (1949) (U.S. Army, Corps of Engineers, 

 Coastal Engineering Research Center, 1966). 



(1) Construction. 



(a) Completed. September 1935. 



(b) Type. Rubble-mound breakwater (granite) (Fig. 37). 



(c) Purpose. Shore protection and beach preservation. 



(d) Auxiliary Purpose. Protected small-craft mooring area. 



(2) Owner. Massachusetts Department of PubUc Works, 100 Nashua Street, Boston, 

 Massachusetts 02114. 



(3) Location. Atlantic Ocean in Broad Sound 1,000 feet off Winthrop Beach, 4.5 

 miles northeast of Boston, Massachusetts. 



Latitude: 42°22'30"N. - Longitude: 70°57'58"W. 



(4) Physical Environment. 



(a) Protected Ocean Environment. Beach and breakwater are protected from 

 westerly directions by mainland. Area is exposed to winds and ocean waves from northerly, 

 through easterly to southerly directions. 



(b) Wave Conditions. Exposed to wind-generated waves from northeast through 

 east through southeast. Maximum waves in Boston area occur during December, January 

 and February with a significant wave height of 23 feet exceeded on 0.1 percent of the days 

 during those months (1 day in 1,000 days) (U.S. Naval Weather Service Command, 1970). 



69 



