Blue Mountain Dam Reservoir Report

Last Updated: December 5, 2025

Blue Mountain Dam, also known as Blue Mountain Lake, is a federal-owned structure located in Danville, Arkansas.


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Summary

Constructed in 1947 by the US Army Corps of Engineers, this earth-type dam stands at a height of 115 feet and spans a length of 2800 feet, with a max storage capacity of 258,000 acre-feet. The dam serves multiple purposes, including flood risk reduction, recreation, and water supply for the surrounding area.

With a high hazard potential, Blue Mountain Dam is continually monitored and managed by the US Army Corps of Engineers to mitigate flood risks. Regular inspections, maintenance, and updates to the emergency action plan are carried out to ensure the dam's structural integrity and readiness for potential emergencies. The dam's spillway, with a width of 150 feet, helps manage water levels and relieve pressure during severe weather events. Despite the risks associated with dam operations, the USACE works diligently to address all flood risk scenarios and engage with local emergency managers to prepare and respond effectively in case of a dam-related emergency.

Year Completed

1947

Dam Length

2800

Dam Height

115

River Or Stream

PETIT JEAN

Primary Dam Type

Earth

Surface Area

2910

Hydraulic Height

81

Drainage Area

488

Nid Storage

258000

Structural Height

115

Hazard Potential

High

Foundations

Rock

Nid Height

115
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

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.