Grande View Farms Community Pond Reservoir Report

Last Updated: December 8, 2025

Grande View Farms Community Pond, also known as Lake Mitten or Rockridge Farm Pond, is a privately owned water resource located in Harford County, Maryland.


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Summary

Originally designed by USDA SCS's John Cotton and modified by Wilson-Deegan, this Earth-type dam was completed in 1969 for flood risk reduction purposes. With a height of 22 feet and a length of 465 feet, the pond has a storage capacity of 76 acre-feet and covers an area of 8.8 acres.

Managed by the Maryland Dam Safety agency, Grande View Farms Community Pond serves not only as a flood risk reduction structure but also as a recreational area for the local community in Mill Green. The dam is classified as having a significant hazard potential but is currently in satisfactory condition, as per the most recent inspection in September 2021. With a moderate risk assessment rating of 3, the dam is equipped with an uncontrolled spillway and needle outlet gates. The pond's drainage area is 0.71 square miles, with a maximum discharge capacity of 204 cubic feet per second.

Overall, Grande View Farms Community Pond stands as an important water resource in the region, providing both practical flood risk reduction benefits and recreational opportunities for residents. As climate change continues to pose challenges to water management, the maintenance and upkeep of this dam remain crucial in ensuring the safety and well-being of the surrounding community. With its picturesque setting and vital role in water resource management, Grande View Farms Community Pond is a valuable asset worth preserving for future generations of water resource and climate enthusiasts.

Year Completed

1969

Dam Length

465

Dam Height

22

River Or Stream

Broad Creek-TR

Primary Dam Type

Earth

Surface Area

8.8

Drainage Area

0.71

Nid Storage

76

Outlet Gates

Needle - 0

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

22
       
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.