TABI£ 6 

 FIRST COSTS AND ANNUAL CHARGES 

 Lower Bay Barriers - Narragansett Bay 

 Estlnate of Mininuoi Cost 

 Item Federal Local Total 



Construction of barriers, 



dikes and walls I 67,273,000 » 1,617,000(J-) I 68,890,000 



Lands and Damages - 110,000 110«000 



Total First Cost » 67,273,000 « 1,727,000 9 69,000,000 

 Interest during 



Construction 2,527.000 6$. 000 2,592,000 



(1) Cash contribution to first cost in lieu of annual 

 operation and maintenance of structures. 



59 



