TABLE F-8 



ESTIMATED ANNUAL CHARGES - MaxL-num Amounf 

 (1956 Price Level) 

 UMER BAY BARRIERS - NARRAGANSETT BAY 



Federal Investment 



Total Federal First Cost $.105,203,000 

 Interest during Construction 5,260,000 

 Total Federal Investment $110,U63,0Q0 



Federal Annual Charges 



Interest on Federal Investment 



(2-1/2^) $ 2,760,000 



Amortization (50 years) 1,133,000 



Maintenance and Operation 



Quarry and Plant Maintenance I 5,000 



Embaniaaent and General li0,000 



Concrete Features 2,000 



Gates (Tiverton) 10,000 



Navigation Gate (West Barrier) 57,000 



Sluice Gates (West Barrier) 16,000 



130,000 

 Total Federal Annual Charges $U, 023, 000 



Non-Federal Investment 



Contributed Funds f, 3,687,000 



Lands and Damages 110,000 



Interest during Construction 190,000 



Total Non-Federal Investment $ 3,987,000 



Non-Federal Annual Charges 



/ 

 Interest on Investment $ 100,000 



Amortization 111, 000 



Estimated Tax Losses 3,000 



Total Non-Federal Ann;ial Charges $ li4li,000 



TOTAL ANNUAL CHARGES fl;, 167,000 



F-23 



