During the second construction season^ the gravity dam section 

 and the sluice gate si9)er-structure, cooling water intake ^ and 

 punqping station would be conq)leted. Land walls and stop log 

 structures would be constructed. It is estimated that all work 

 could be conpleted in two seasons. 



F-13. OPERATION AND MAINTENANCE 



During a hurricane alert , the sluice gates would be closed 

 by tripping the drop mschanisms. The cooling water intake through 

 the barrier would be closed when tiie situation became acute. The 

 emergency intake gates inside the barrier would be opened, and 

 maintenance personnel would stand by for pun;>ing to maintain the 

 fresh-water pool at or below mean sea level. 



Operation of the Fox Point barrier at other times would con- 

 sist solely of maintenance procedures. The sluice gates would 

 remain open to permit river flow and tidal interchange , and the 

 cooling water intake gate would be open to permit the entrance of 

 water from the bay. 



Maintenance of the barrier and pumping station would require 

 a regularly assigned maintenance crew. Periodic testing of machinezy 

 would be carried out about once a month along with lubrication, 

 painting, and othdr procedures as required. 



F-lU. COST ESTIMATES 



A detailed estimate of the first cost for the Fox Point 

 barrier is given in Table F-3. The estimated annual charges of 

 $581i,000 are shown in Table F-k, 



F-15. ALTERNATIVE PLANS FOR FOX POINT 



a. General . Studies of alternative barrier alignments, and 

 of different types of structures, were made at several locations 

 in the Fox Point area. The major alignment studies were (1) an 

 alignment from Fox Point, crossing the Providence River normal 

 to the center line of the river, and (2) alignn»nts from Fox 

 Point to the vicinity of Henderson Street. The structures inves- 

 tigated were rock and earth filled sections used in conjunction 

 with concrete appurtenant works, and structures constructed 

 conpletely of concrete. 



F-7 



