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F3a Four Corners Mine Dam Quick Facts

Location: Manatee, Florida
Coordinates: 27.630301, -82.078201
River: Myakka River
Primary Purpose: Tailings
Type: Earth
Commissioned: 2001
Dam Height: 65 ft (20 m)
Dam Length: 19,866 ft (6,055 m)
Dam Capacity: 37,500 acre-ft (46,256 Ml)
Hazard Potential: Significant
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F3a Four Corners Mine Dam Map

F3a Four Corners Mine Dam Information

F3a Four Corners Mine Dam is an earthen embankment dam located in Duette, Manatee, Florida.

The dam, which is on the Myakka River, was primarily built for Tailings purposes, but also serves for benefits.

The dam was designed by ARDAMAN & ASSOCIATES and commissioned in 2001 and is currently owned by THE MOSAIC COMPANY.

F3a Four Corners Mine Dam Structure

The F3a Four Corners Mine Dam is approximately 19,866 feet (6,055 m) long, 65 feet (20 m) high and has a structural volume of 9,744,500 cubic yards (7,450,206 cubic metres).

F3a Four Corners Mine Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 34,260 acre-ft (42,259 Ml) and maximum capacity of 37,500 acre-ft (46,256 Ml).

The surface area of the reservoir is 571 acres (231 ha) and the total catchment area is 1 square miles (2 square kilometres).

F3a Four Corners Mine Dam Spillway

The dam has a 125 feet (38 m) wide controlled spillway with a maximum discharge capacity of 80 cubic feet per second (2 cubic metres per second).

F3a Four Corners Mine Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
F3a Four Corners Mine Dam
Manatee, Florida
Height (ft)
65
Length (Ft)
19,866
Storage Volume (acre-ft)
37,500
Drainage Area (sq miles)
1
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

F3a Four Corners Mine Dam Weather

Current Conditions at F3a Four Corners Mine Dam

Parameter Value
Current Time 19:39
Sunrise 07:09
Sunset 17:34
Temperature (°F) 58
Feels Like (°F) 56
Cloud Coverage (%) 1
Pressure (inHg) 1022
Humidity (%) 50
Wind Speed (mph) 16
Rain (mm) 0

7-Day Forecast for F3a Four Corners Mine 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 55 79 79 1017 68 21 30 WNW 100 2 light rain
Thu 43 65 58 1028 41 16 29 NE 0 - clear sky
Fri 50 72 71 1027 54 16 26 ENE 0 - clear sky
Sat 61 76 73 1027 58 17 30 ENE 0 - overcast clouds
Sun 63 80 80 1021 51 14 27 NE 0 - clear sky
Mon 64 80 80 1018 57 13 24 ENE 0 - broken clouds
Tue 67 78 78 1019 64 11 20 NNE 0 - overcast clouds
Wed 63 82 83 1019 53 11 23 ENE 22 0 light rain

F3a Four Corners Mine Dam Frequently Asked Questions

In which state is the F3a Four Corners Mine Dam?

F3a Four Corners Mine Dam is in Florida.

In which county is the F3a Four Corners Mine Dam?

F3a Four Corners Mine Dam is in Manatee County.

How high is the F3a Four Corners Mine Dam?

F3a Four Corners Mine Dam is 65 feet high.

How long is the F3a Four Corners Mine Dam?

F3a Four Corners Mine Dam is 19,866 feet long.

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More Dams in Manatee County:

F1 Four Corners Mine Dam
F3a Four Corners Mine Dam
F3b Four Corners Mine Dam
Fgh1b Fort Green Mine Dam
Har8 Dam
Har9 Dam
Lake Manatee Dam
Manatee Cooling Water Reservoir Dam
Wingate Creek Isa Dam

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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