Clifford D. Craig Memorial Dam Reservoir Report

Last Updated: December 8, 2025

Located in Roanoke, Virginia, the Clifford D.


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Summary

Craig Memorial Dam, also known as the Spring Hollow Reservoir Dam, is a concrete structure primarily used for water supply purposes. Standing at a height of 240.5 feet, the dam boasts a storage capacity of 11,410 acre-feet, with a normal storage level of 9,800 acre-feet and a surface area of 111.3 acres. The dam is regulated by the Department of Conservation and Recreation in Virginia, ensuring its safe operation and maintenance.

With a high hazard potential and a satisfactory condition assessment as of November 2020, the Clifford D. Craig Memorial Dam plays a crucial role in managing water resources in the region. It is situated on a tributary to the Roanoke River, providing vital water supply to the local community. Despite its age and lack of recent modifications, the dam continues to meet regulatory standards and undergo regular inspections to ensure its structural integrity and safety.

Managed by the local government, the Clifford D. Craig Memorial Dam serves as a key infrastructure for water resource management in the area. As climate change continues to impact water availability and quality, the dam plays a critical role in ensuring a reliable water supply for the community. With its towering height and expansive storage capacity, the dam stands as a testament to the importance of sustainable water management in the face of changing environmental conditions.

Dam Length

976

Dam Height

240.5

River Or Stream

TRIB. TO ROANOKE RIVER

Primary Dam Type

Concrete

Surface Area

111.3

Hydraulic Height

240.5

Drainage Area

0.8

Nid Storage

11410

Structural Height

240.5

Hazard Potential

High

Nid Height

241
       
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.