Murray Lock and Dam Quick Facts
Murray Lock and Dam Map
Murray Lock and Dam Information
Murray Lock and Dam is a concrete gravity dam located in Little Rock, Pulaski, Arkansas.
The dam, which is on the Arkansas River, was primarily built for Navigation purposes, but also serves for Recreation and Hydroelectric benefits.
The dam was designed by CESWL and commissioned in 1969 and is currently owned by USACE – Little Rock District.
Murray Lock and Dam Structure
The Murray Lock and Dam is approximately 3,740 feet (1,140 m) long, 23 feet (7 m) high and has a structural volume of 264,000 cubic yards (201,843 cubic metres).
Murray Lock and Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 87,100 acre-ft (107,436 Ml) and maximum capacity of 108,500 acre-ft (133,833 Ml).
The surface area of the reservoir is 9,700 acres (3,925 ha) and the total catchment area is 158,030 square miles (409,296 square kilometres).
Murray Lock and Dam Spillway
The dam has a 840 feet (256 m) wide controlled spillway with a maximum discharge capacity of 416000 cubic feet per second (11780 cubic metres per second).
Murray Lock and Dam Compared to Five Famous American Dams
Murray Lock and Dam Weather
Current Conditions at Murray Lock and Dam
| Parameter | Value |
|---|---|
| Current Time | 19:22 |
| Sunrise | 07:14 |
| Sunset | 17:27 |
| Temperature (°F) | 20 |
| Feels Like (°F) | 12 |
| Cloud Coverage (%) | 0 |
| Pressure (inHg) | 1037 |
| Humidity (%) | 44 |
| Wind Speed (mph) | 6 |
| Rain (mm) | 0 |
7-Day Forecast for Murray 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 | 19 | 27 | 16 | 1041 | 19 | 10 | 15 | N | 0 | - |  |
| Wed | 19 | 40 | 27 | 1028 | 18 | 12 | 25 | SSW | 0 | - |  |
| Thu | 28 | 44 | 38 | 1031 | 47 | 7 | 16 | NW | 0 | - |  |
| Fri | 27 | 46 | 40 | 1029 | 43 | 7 | 18 | SW | 0 | - | |
| Sat | 31 | 51 | 44 | 1028 | 44 | 12 | 29 | SSW | 0 | - | |
| Sun | 41 | 45 | 44 | 1024 | 97 | 4 | 14 | S | 100 | 19 |  |
| Mon | 44 | 51 | 45 | 1022 | 82 | 7 | 17 | NE | 20 | 0 | |
| Tue | 43 | 55 | 50 | 1019 | 55 | 5 | 12 | NW | 0 | - | |
Murray Lock and Dam Frequently Asked Questions
Murray Lock and Dam is in Arkansas.
Murray Lock and Dam is in Pulaski County.
Murray Lock and Dam is 23 feet high.
Murray Lock and Dam is 3,740 feet long.
More Dams in Pulaski County:
Claytor DamDavid D. Terry Lock and Dam
Lake Maumelle Dam
Murray Lock and Dam
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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