Longview Lake Upper Dam Reservoir Report

Last Updated: December 5, 2025

Longview Lake Upper Dam in Wake, North Carolina, is a privately owned structure regulated by the NCDEQ Dam Safety Program.


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Summary

Situated on Crabtree Creek-Tr, this earth-type dam serves primarily for recreational purposes with a hydraulic height of 11.1 feet and a structural height of 14.7 feet. The dam has a normal storage capacity of 24 acre-feet and covers a surface area of 5.5 acres, providing essential water resources for the region.

With a high hazard potential and fair condition assessment as of August 2020, Longview Lake Upper Dam is subject to regular inspections every two years to ensure its safety and integrity. The dam's Emergency Action Plan was last revised in June 2015, highlighting the importance of proactive risk management measures to mitigate any potential threats. Despite its private ownership, the dam plays a crucial role in the water resource management of the area, emphasizing the need for ongoing monitoring and maintenance efforts to safeguard against any environmental risks.

As a key feature in the recreational landscape of Raleigh, Longview Lake Upper Dam contributes to the local community's enjoyment while also serving as a vital water resource for the region. Its strategic location and purposeful design underscore the intersection of environmental conservation and public recreation, making it an essential structure for water resource and climate enthusiasts to appreciate and prioritize in their advocacy efforts.

River Or Stream

Crabtree Creek-Tr

Primary Dam Type

Earth

Surface Area

5.5

Hydraulic Height

11.1

Drainage Area

334

Nid Storage

44

Structural Height

14.7

Hazard Potential

High

Nid Height

15
       
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.