Dean Ave. Dam Reservoir Report

Last Updated: December 5, 2025

Dean Ave.


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Summary

Dam, also known as Wil-O-Dean West Dam, is a significant recreational structure located in Raleigh, North Carolina. Situated along the Perry Creek-Tr river, this earth dam stands at a hydraulic height of 10 feet and a structural height of 12 feet, with a length of 150 feet. With a primary purpose of recreation, the dam offers a storage capacity of 3 acre-feet and provides opportunities for outdoor activities in the surrounding area.

Although not state-regulated, Dean Ave. Dam has undergone inspections in the past, with the last assessment conducted in January 2007. Classified as having significant hazard potential, the dam's condition remains unrated, with no recent updates on emergency action plans or risk management measures. Despite its non-regulated status, the dam continues to serve as an important recreational resource for the local community, offering a picturesque setting for outdoor enthusiasts and nature lovers to enjoy.

As part of the Wilmington District in North Carolina, Dean Ave. Dam contributes to the overall water resource management in the region. While not federally funded or regulated, the dam's presence highlights the importance of maintaining and monitoring recreational structures to ensure safety and continued enjoyment for visitors. As water resource and climate enthusiasts, understanding the role of dams like Dean Ave. Dam in providing recreational opportunities and supporting local ecosystems is crucial for sustainable water management practices.

Dam Length

150

River Or Stream

Perry Creek-Tr

Hydraulic Height

10

Nid Storage

3

Structural Height

12

Hazard Potential

Significant

Nid Height

12
       
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.