Dd No G-3 (Merrill) Reservoir Report
Nearby: Crystal Lake Dam Cedar Creek
Last Updated: December 12, 2025
Dd No G-3 (Merrill), also known as Upper Pottawatomie Creek Dam No G3, is a flood risk reduction structure located in Anderson County, Kansas.
°F
°F
mph
Wind
%
Humidity
Summary
Owned by the local government and regulated by the Kansas Department of Agriculture, this dam serves to protect the surrounding area from potential flooding events along the South Fork Pottawatomie Creek.
Constructed by the USDA NRCS, Dd No G-3 stands at a height of 37 feet with a hydraulic height of 33 feet and a structural height of 37 feet. With a storage capacity of 120 acre-feet, this buttress-type dam spans a length of 580 feet and has a maximum discharge of 602 cubic feet per second. Despite its low hazard potential, the condition of this dam has not been rated, and no emergency action plan or inundation maps have been prepared.
Water resource and climate enthusiasts will find Dd No G-3 (Merrill) to be an essential piece of infrastructure in managing flood risks in the area. With its strategic location and design, this dam plays a critical role in protecting the community and surrounding environment from potential flooding events, showcasing the importance of resilient water resource management practices in the face of changing climate conditions.
Dam Length |
580 |
Dam Height |
37 |
River Or Stream |
SOUTH FORK POTTAWATOMIE CREEK-TR |
Hydraulic Height |
33 |
Nid Storage |
120 |
Structural Height |
37 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
37 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pottawatomie C Nr Scipio
|
15cfs |
Pottawatomie C At Lane
|
13cfs |
Marais Des Cygnes R Nr Pomona
|
14cfs |
Marais Des Cygnes R Nr Ottawa
|
53cfs |
Neosho R At Burlington
|
1190cfs |
Neosho R Nr Iola
|
944cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Dd No G-3 (Merrill)