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Mississippi River Lock and Dam 24 Quick Facts

Location: Calhoun, Missouri
Coordinates: 39.379047, -90.901085
River: Mississippi River
Primary Purpose: Navigation
Type: Concrete Other Gravity
Commissioned: 1940
Dam Height: 55 ft (17 m)
Dam Length: 4,584 ft (1,397 m)
Dam Capacity: 125,363 acre-ft (154,633 Ml)
Hazard Potential: Significant
Condition Assessment: Not Available
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Mississippi River Lock and Dam 24 Map

Mississippi River Lock and Dam 24 Information

Mississippi River Lock and Dam 24 is a concrete other gravity dam located about 1 miles from Clarksville, Calhoun, Missouri.

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

The dam was designed by CEMVS and commissioned in 1940 and is currently owned by USACE – St. Louis District.

Mississippi River Lock and Dam 24 Structure

The Mississippi River Lock and Dam 24 is approximately 4,584 feet (1,397 m) long, 55 feet (17 m) high and has a structural volume of 0 cubic yards (0 cubic metres).

Mississippi River Lock and Dam 24 Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 125,363 acre-ft (154,633 Ml) and maximum capacity of 125,363 acre-ft (154,633 Ml).

The surface area of the reservoir is 13,000 acres (5,261 ha) and the total catchment area is 140,900 square miles (364,930 square kilometres).

Mississippi River Lock and Dam 24 Spillway

The dam has a 1200 feet (366 m) wide controlled spillway with a maximum discharge capacity of 364000 cubic feet per second (10307 cubic metres per second).

Mississippi River Lock and Dam 24 Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Mississippi River Lock and Dam 24
Calhoun, Missouri
Height (ft)
55
Length (Ft)
4,584
Storage Volume (acre-ft)
125,363
Drainage Area (sq miles)
140,900
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

Mississippi River Lock and Dam 24 Weather

Current Conditions at Mississippi River Lock and Dam 24

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7-Day Forecast for Mississippi River Lock and Dam 24

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Mississippi River Lock and Dam 24 Frequently Asked Questions

In which state is the Mississippi River Lock and Dam 24?

Mississippi River Lock and Dam 24 is in Missouri.

In which county is the Mississippi River Lock and Dam 24?

Mississippi River Lock and Dam 24 is in Calhoun County.

How high is the Mississippi River Lock and Dam 24?

Mississippi River Lock and Dam 24 is 55 feet high.

How long is the Mississippi River Lock and Dam 24?

Mississippi River Lock and Dam 24 is 4,584 feet long.

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Mississippi River Lock and Dam 24
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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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