Sinclair Dam

Sinclair Dam Quick Facts

Location: Baldwin, Georgia
Coordinates: 33.1405, -83.2018
River: Oconee River
Primary Purpose: Hydroelectric
Type: Gravity Earth
Commissioned: 1953
Dam Height: 104 ft (32 m)
Dam Length: 2,988 ft (911 m)
Dam Capacity: 490,000 acre-ft (604,405 Ml)
Condition Assessment: Satisfactory
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Sinclair Dam Map

Sinclair Dam Information

Sinclair Dam is a gravity earth dam located about 4 miles from Milledgeville, Baldwin, Georgia.

The dam, which is on the Oconee River, was primarily built for Hydroelectric purposes, but also serves for Recreation and Water Supply benefits.

The dam was designed by SOUTHERN SERVICES, INCORPORATED and commissioned in 1953 and is currently owned by Georgia Power Company.

Sinclair Dam Structure

The Sinclair Dam is approximately 2,988 feet (911 m) long, 104 feet (32 m) high and has a structural volume of cubic yards (0 cubic metres).

Sinclair Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 333,000 acre-ft (410,749 Ml) and maximum capacity of 490,000 acre-ft (604,405 Ml).

The surface area of the reservoir is 15,330 acres (6,204 ha) and the total catchment area is 2,910 square miles (7,537 square kilometres).

Sinclair Dam Spillway

The dam has a 870 feet (265 m) wide controlled spillway with a maximum discharge capacity of 479000 cubic feet per second (13564 cubic metres per second).

Sinclair Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Sinclair Dam
Baldwin, Georgia
Height (ft)
104
Length (Ft)
2,988
Storage Volume (acre-ft)
490,000
Drainage Area (sq miles)
2,910
Hoover Dam
Clark County, Nevada
Height (ft)
730
Length (Ft)
1,244
Storage Volume (acre-ft)
30,237,000
Drainage Area (sq miles)
167,800
Grand Coulee Dam
Okanogan County, Washington
Height (ft)
550
Length (Ft)
5,673
Storage Volume (acre-ft)
9,562,0000
Drainage Area (sq miles)
74,100
Theodore Roosevelt Dam
Maricopa County, Arizona
Height (ft)
357
Length (Ft)
1,208
Storage Volume (acre-ft)
3,411,500
Drainage Area (sq miles)
5,736
Oroville Dam
Butte County, California
Height (ft)
235
Length (Ft)
6,920
Storage Volume (acre-ft)
3,540,000
Drainage Area (sq miles)
3,611
Glen Canyon Dam
Coconino County, Arizona
Height (ft)
216
Length (Ft)
1,565
Storage Volume (acre-ft)
29,875,000
Drainage Area (sq miles)
108,355

Sinclair Dam Weather

Current Conditions at Sinclair Dam

Parameter Value
Current Time 23:10
Sunrise 06:55
Sunset 17:37
Temperature (°F) 69
Feels Like (°F) 70
Cloud Coverage (%) 75
Pressure (inHg) 1018
Humidity (%) 96
Wind Speed (mph) 9
Rain (mm) 1

7-Day Forecast for Sinclair Dam

Day Min Temp (°F) Max Temp (°F) Feels Like (°F) Pressure (inHg) Humidity (%) Wind Speed (mph) Wind Gust (mph) Wind Dir Precip Prob (%) Precip Volume (mm) Weather
Today 65 80 79 1020 70 14 31 ENE 100 37 very heavy rain
Thu 68 71 71 1019 96 9 26 ENE 100 4 moderate rain
Fri 69 78 78 1019 82 4 11 SE 100 4 light rain
Sat 68 78 78 1020 73 9 24 SE 100 1 light rain
Sun 64 72 72 1017 81 8 20 E 100 4 moderate rain
Mon 63 72 70 1012 79 4 10 NNE 0 - overcast clouds
Tue 63 78 78 1012 53 4 8 SE 0 - broken clouds
Wed 60 72 72 1018 63 9 20 ENE 71 1 light rain

Sinclair Dam Frequently Asked Questions

In which state is the Sinclair Dam?

Sinclair Dam is in Georgia.

In which county is the Sinclair Dam?

Sinclair Dam is in Baldwin County.

How high is the Sinclair Dam?

Sinclair Dam is 104 feet high.

How long is the Sinclair Dam?

Sinclair Dam is 2,988 feet long.

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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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