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Construction of the Northfield Brook Dam and Reservoir is required as part of the comprehensive plan of flood protection for the Naugatuck River Valley. This valley comprises the largest non-ferrous-metal manufacturing area in the Nation, over one-third of the Nation's brass and bronze is produced in this area. A recurrence of the 1955 flood at present price levels would cause damages of $227 million in the area downstream from Thomaston Reservoir. The operation of the authorized Thomaston, Hall Meadow, and East Branch Reservoirs together with the small protection project at Waterbury would reduce the losses in this area by $171,500,000. The Northfield Brook Reservoir together with the remaining reservoirs making up the comprehensive plan; namely, Black Rock, Hop Brook, and Hancock Brook Reservoirs, would prevent an additional $31,200,000 in damages. The reduction applicable to Northfield Brook is $3,300,000.

Fiscal year 1965.-The requested amount of $1,346,000 will be applied toInitiate and complete recreational facilities__

Initiate and complete permanent operating equipment_
Initiate and complete buildings, grounds, and utilities_.

Complete land acquisition.

Complete relocations__

Complete dam construction__.

Engineering and design_.

Supervision and administration____

Total____.

$45,000 5, 000 3,000 25, 000 310, 000

847, 000

25,000

86,000

1. 346, 000

Expenditure of these funds will provide for completion of the project during the fiscal year.

Non-Federal cost.-None required.

Status of local cooperation.-Local interests are required to establish encroachment lines downstream from the dam to permit reasonable, efficient reservoir operation. State legislation permits the State water resources commission to establish encroachment lines. Such lines have been established on the Naugatuck River. The director, State of Connecticut Water Resources Commission, has provided assurances that additional encroachment lines will be established along Northfield Brook between the dam and the Naugatuck River. Comparison of Federal cost estimates.-The current Federal cost estimate of $2,810,000 is a net increase of $110,000 over the latest estimate ($2,700,000) submitted to Congress. This change includes increases of $262,800 for relocations, $13,000 for reservoir, $3,000 for addition of buildings, grounds, and utilities and $66,200 for engineering and design and supervision and administration. These increases were offset somewhat by a decrease of $120,000 for the dam, $5,000 for recreation facilities, and $10,000 due to internal adjustments. The current estimate reflects the result of bids for the major tems of construction.

Project cost estimate

Summary construction program (PB-1), fiscal years 1964 and 1965

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Location. The project is located on the north shore of Long Island Sound about 20 miles east of New York City.

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PHYSICAL DATA

River barrier:

Type: Rock-faced earthfill.

Length and height: 2,850 by 17 feet.

Land dikes :

Type: Rock-faced earthfill.

Length and height: 7,250 by 17 feet.

Pumping stations:

Number: 4.

Pumps: No. 1-5; No. 2-3; No. 3-3 ; No. 4-3.

Capacity: No. 1-229,500 gallons per minute; No. 2-45,000 gallons per minute; No. 3-22,500 gallons per minute; No. 4-63,000 gallons per minute.

River gates:

Type: Flap gate.

Size: 90 by 35 feet.

Operating mechanism: Electric-motor-driven hoist.

Floodwalls:

Type: Concrete T-wall.

Length and height: 1,340 by 17 feet.

Type: Concrete piling wall.

Length and height: 160 by 17 feet.

Status (January 1, 1964).—Construction not started.

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The city of Stamford, Conn., has sustained heavy damages in the past due to tidal flooding caused by hurricanes and other great storms, and faces the continuing threat of similar damages in the future. The project will provide complete tidal-flood protection to about 460 acres of property in the city of Stamford, below an elevation of 11 feet mean sea level, that were inundated in the hurricanes of September 21, 1938, and August 31, 1954. A recurrence under present economic conditions of the tidal flood of record (1938) would cause losses estimated at $6,170,000. The project would prevent $5,580,000 of these damages. Fiscal year 1965.—The requested amount of $1,700,000 will be applied to— Continue construction of levees and floodwalls. Continue construction of pumping plants_.

Engineering and design___

Supervision and administration__

Total__

$1, 130, 000 420,000 33,000 117, 000

1, 700, 000

Expenditure of these funds will provide for economical prosecution of the project during the fiscal year.

Non-Federal cost.—Local interests are required to provide all lands, easements, and rights-of-way; accomplish all modifications and relocations of buildings and utilities; bear 30 percent of the total first cost with credit allowed for the value of lands and relocations; contribute the capitalized value of annual maintenance and operation of the east branch barrier, which will be operated by the United States; hold and save the United States free from damages due to the construction works; and maintain and operate all the works except the east branch barrier after completion. The initial investment required of local interests in construction of the authorized project is estimated at $3,100,000 as follows: Lands and damages, $500,000; relocations (sewers), $140,000; cash contribution, $1,580,000; and cash contribution in lieu of maintenance and operation of main harbor barrier, $880,000. The annual cost for maintenance and operation is estimated at $28,800, for project features other than the main barrier.

Status of local cooperation.—Formal assurances of local cooperation were fur nished by the city of Stamford on May 3, 1963. The city of Stamford has already placed funds in escrow and will have funds available as needed for construction. Comparison of Federal (Corps of Engineers) cost estimates.-The current Federal (Corps of Engineers) cost estimate of $4,300,000 is an increase of $558,000 over the latest ($3,742,000) submitted to Congress. This increase represents the

Federal (Corps of Engineers) share of an $818,000 increase in the total project cost estimate. This total change includes increases of $671,000 for relocations and construction based on more detailed planning and $197,000 for engineering and design and supervision and administration based on reanalysis of requirements. These increases were partially offset by a decrease of $50,000 due to internal adjustments.

Summary construction program (PB-1), fiscal years 1964 and 1965

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NEW BEDFORD, FAIRHAVEN, AND ACUSHNET BARRIERS, MASSACHUSETTS

(Continuing)

Location. The project is located in New Bedford-Fairhaven Harbor, Mass., on the southern coast of Massachusetts.

Authorization.-1958 Flood Control Act.
Benefit-cost ratio.-2.1 to 1.

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PHYSICAL DATA

Main harbor barrier:

Type: Earthfill and rockfill.

Length: 4,500 feet.

Average height: 25 feet.

Clark Cove and New Bedford dikes :

Type: Earthfill and rockfill.

Length: 10,300 feet.

Average height: 10 feet.

Pumping station:

Number: 1.

Structure: Reinforced concrete.

Size: 80 by 30 feet.

Number of pumps: 4.

Capacity (each): 55,000 gallons per minute at 20-foot head.

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Size: 2 leaves 59 feet high by 95 feet outer circumference.
Mechanism: Electric motor driven.

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The project will provide full protection for over 1,260 acres in New Bedford, Fairhaven, and Acushnet, Mass., from storm tide flooding. The project will protect the heavily industrialized portion of these communities which are areas of substantial and persistent unemployment.

The New Bedford-Fairhaven area has experienced heavy tidal-flood losses in recent hurricanes. The area being open to Buzzards Bay, is particularly susceptible to the onslaught of tidal surges accompanying northward moving hurri

canes.

At current price levels, flood losses are estimated at $33 million for a recurrence of the September 1938 hurricane and $31,100,000 for a recurrence of the August 1954 hurricane. The project would prevent $31,800,000 and $30,130,000 of these damages, respectively. This represents practically complete protection for 80 percent of the area flooded during past hurricanes in the New BedfordFairhaven area, and a reduction of 97 percent of the losses due to the record hurricane of 1938.

Fiscal year 1965.-The requested amount of $4 million (Federal funds) will be applied to:

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