Rc&D Watershed Structure Y-17 Reservoir Report

Last Updated: December 5, 2025

Rc&D Watershed Structure Y-17, also known as Collins Hill Park Lake, is a key flood risk reduction structure located in Gwinnett, Georgia along the Little Suwanee Creek.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1968 by the Natural Resources Conservation Service, this earth dam stands at an impressive height of 31.8 feet and stretches over a length of 762 feet. With a storage capacity of 1418 acre-feet and a drainage area of 3380 acres, this structure plays a vital role in managing water resources and protecting the surrounding community from potential flooding events.

State regulated and inspected by the GA-SAFE DAMS PROGRAM, Rc&D Watershed Structure Y-17 has been assessed to be in satisfactory condition as of February 2016. Despite its high hazard potential, the risk level is considered moderate (3) with appropriate risk management measures in place. This structure serves as a testament to the importance of proactive infrastructure development in mitigating the impacts of climate change on water resources. As a focal point for water resource and climate enthusiasts, Rc&D Watershed Structure Y-17 stands as a reminder of the ongoing efforts to safeguard our environment for future generations.

With its location in the heart of Georgia and its critical role in flood risk reduction, Rc&D Watershed Structure Y-17 exemplifies the collaborative efforts between local government and state agencies to address water resource challenges. As climate change continues to intensify, structures like this will play a crucial role in adapting to the changing hydrological landscape and ensuring the resilience of our communities. For enthusiasts passionate about water resources and climate resilience, Rc&D Watershed Structure Y-17 serves as a beacon of hope and a reminder of the importance of sustainable water management practices in the face of a changing climate.

Year Completed

1968

Dam Length

762

Dam Height

31.8

River Or Stream

LITTLE SUWANEE CREEK

Primary Dam Type

Earth

Surface Area

36

Drainage Area

3380

Nid Storage

1418

Outlet Gates

Uncontrolled

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

32
       
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.