Robert Moses - St. Lawrence Dam, New York, USA

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Quick Facts About Robert Moses – St. Lawrence Dam

Location: St. Lawrence, New York
Coordinates: 45.004992, -74.797557
River: St. Lawrence River
Primary Purpose: Hydroelectric
Type: Concrete Gravity
Commissioned: 1958
Dam Height: 145 ft (44 m)
Dam Length: 1,600 ft (488 m)
Dam Capacity: 803,000 acre-ft (990,484 Ml)
Condition Assessment: Satisfactory

Robert Moses – St. Lawrence Dam Map

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Robert Moses – St. Lawrence Dam Information

Robert Moses – St. Lawrence Dam is a concrete gravity dam located about 4 miles from Rooseveltown, St. Lawrence, New York.

The dam, which is on the St. Lawrence River, was primarily built for Hydroelectric purposes, but also serves for Navigation benefits.

The dam was designed by UHL, Hall & Rich (now Parsons Main) and commissioned in 1958 and is currently owned by New York Power Authority.

Robert Moses – St. Lawrence Dam Structure

The Robert Moses – St. Lawrence Dam is approximately 1,600 feet (488 m) long, 145 feet (44 m) high and has a structural volume of 985,000 cubic yards (753,087 cubic metres).

Robert Moses – St. Lawrence Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 750,000 acre-ft (925,110 Ml) and maximum capacity of 803,000 acre-ft (990,484 Ml).

The surface area of the reservoir is 37,500 acres (15,176 ha) and the total catchment area is 300,000 square miles (776,997 square kilometres).

Robert Moses – St. Lawrence Dam Spillway

According to the latest available data, the Robert Moses – St. Lawrence Dam does not have any spillways.

Robert Moses – St. Lawrence Dam Compared to Four Famous American Dams

Robert Moses – St. Lawrence Dam
St. Lawrence, New York
Hoover Dam
Clark County, Nevada
Grand Coulee Dam
Okanogan County, Washington
Theodore Roosevelt Dam
Maricopa County, Arizona
Glen Canyon Dam
Coconino County, Arizona
Height (ft) 145 730 550 357 216
Length (Ft) 1,600 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 803,000 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 300,000 167,800 74,100 3,611 108,355

Robert Moses – St. Lawrence Dam Weather

Current Conditions at Robert Moses – St. Lawrence Dam

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7-Day Forecast for Robert Moses – St. Lawrence Dam

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Robert Moses – St. Lawrence Dam Frequently Asked Questions

In which state is the Robert Moses – St. Lawrence Dam?

Robert Moses – St. Lawrence Dam is in New York.

In which county is the Robert Moses – St. Lawrence Dam?

Robert Moses – St. Lawrence Dam is in St. Lawrence County.

How high is the Robert Moses – St. Lawrence Dam?

Robert Moses – St. Lawrence Dam is 145 feet high.

How long is the Robert Moses – St. Lawrence Dam?

Robert Moses – St. Lawrence Dam is 1,600 feet long.

Condition Assessment Classification

Satisfactory

No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.

Fair

No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum

Poor

A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.

Unsatisfactory

A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.

Not Rated

The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.

Not Available

Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High

Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.

Significant

Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.

Low

Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner’s property.

Undetermined

Dams for which a downstream hazard potential has not been designated or is not provided.

Not Available

Dams for which the downstream hazard potential is restricted to approved government users.

Source: National Inventory of Dams

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