a back shore elevation of 15 feet above mean low water j 



b<, Constructing a concrete-encased steel sheet-pile bulk- 

 head with a top elevation of 18 feet above mean low water, between the 

 parapet wall, near Hollis Avenue, and the National Sailor's Home Hill 

 Sea Wall, a distance of 4750 feet$ 



c. Constructing a concrete sea wall with a top elevation 

 of 19 2 feet above mean low water, in extension of the existing 

 parapet wall to high ground at Billings Street, a distance of 325 

 feet 5 



d Constructing a culvert at Sachem Creek, and extending 

 existing drains across the beach to discharge seaward of the 

 recommended fillo 



Federal participation was recommended subject to the conditions 

 that the Commonwealth of Massachusetts will- 



a„ Adopt the project named herein; 



bo Submit for approval by the Chief of Engineers prior to 

 the commencement of work, the plans and specifications for the project 

 and also the arrangements for prosecuting the worko 



Co Assure maintenance of the protective and improvement 

 measures during their useful life as may be required to serve their 

 intended purpose § 



do Provide at its own expense, all necessary lands, ease- 

 ments, and rights-of-way | 



e„ Hold and save the United States free from all claims 

 for damages that may arise either before, during, or after pro- 

 secution of the workj 



f o Assure that water pollution that would endanger the 

 health of bathers will be eliminated^ 



g« Assure continued public ownership of the shore and its 

 administration for public use only» 



The estimated amount of Federal participation in accordance with 

 the foregoing recommendations is $299,000 o 



30 



