Dardanelle Lock and Dam

Dardanelle Lock and Dam Quick Facts

Location: Pope, Arkansas
Coordinates: 35.249579, -93.1700523
River: Arkansas River
Primary Purpose: Navigation
Type: Concrete Gravity
Commissioned: 1969
Dam Height: 71 ft (22 m)
Dam Length: 2,683 ft (818 m)
Dam Capacity: 486,200 acre-ft (599,718 Ml)
Hazard Potential: Significant
Condition Assessment: Not Available
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Dardanelle Lock and Dam Map

Dardanelle Lock and Dam Information

Dardanelle Lock and Dam is a concrete gravity dam located in Dardanelle, Pope, Arkansas.

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

The dam was designed by CESWL and commissioned in 1969 and is currently owned by USACE – Little Rock District.

Dardanelle Lock and Dam Structure

The Dardanelle Lock and Dam is approximately 2,683 feet (818 m) long, 71 feet (22 m) high and has a structural volume of 818,000 cubic yards (625,406 cubic metres).

Dardanelle Lock and Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 420,900 acre-ft (519,172 Ml) and maximum capacity of 486,200 acre-ft (599,718 Ml).

The surface area of the reservoir is 34,300 acres (13,881 ha) and the total catchment area is 153,703 square miles (398,089 square kilometres).

Dardanelle Lock and Dam Spillway

The dam has a 1000 feet (305 m) wide controlled spillway with a maximum discharge capacity of 1500000 cubic feet per second (42475 cubic metres per second).

Dardanelle Lock and Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Dardanelle Lock and Dam
Pope, Arkansas
Height (ft)
71
Length (Ft)
2,683
Storage Volume (acre-ft)
486,200
Drainage Area (sq miles)
153,703
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

Dardanelle Lock and Dam Weather

Current Conditions at Dardanelle Lock and Dam

Parameter Value
Current Time 20:43
Sunrise 06:39
Sunset 17:13
Temperature (°F) 61
Feels Like (°F) 61
Cloud Coverage (%) 0
Pressure (inHg) 1018
Humidity (%) 78
Wind Speed (mph) 3
Rain (mm) 0

7-Day Forecast for Dardanelle Lock and 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 50 69 64 1017 66 5 6 E 0 - clear sky
Thu 55 71 66 1022 66 8 20 E 0 - broken clouds
Fri 57 64 61 1019 81 11 30 E 100 6 moderate rain
Sat 59 67 67 1014 92 10 28 S 100 13 moderate rain
Sun 49 66 65 1015 50 9 14 WNW 0 - clear sky
Mon 48 69 66 1014 54 3 5 NW 0 - clear sky
Tue 51 71 67 1013 55 8 14 SE 0 - broken clouds
Wed 50 76 76 1010 66 15 36 SSW 100 1 light rain

Dardanelle Lock and Dam Frequently Asked Questions

In which state is the Dardanelle Lock and Dam?

Dardanelle Lock and Dam is in Arkansas.

In which county is the Dardanelle Lock and Dam?

Dardanelle Lock and Dam is in Pope County.

How high is the Dardanelle Lock and Dam?

Dardanelle Lock and Dam is 71 feet high.

How long is the Dardanelle Lock and Dam?

Dardanelle Lock and Dam is 2,683 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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