SNOFLO
 



INSTITUTE POND

RESERVOIR LEVELS
Soil Dam Passumpsic River-Tr
April 23, 2025


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Institute Pond, located in Lyndon, Vermont, is a privately-owned dam constructed in 1911 with a primary purpose other than water storage. The dam is classified as an Earth dam with a height of 26 feet and a length of 250 feet, providing a maximum storage capacity of 41 acre-feet. The pond has a surface area of 3 acres and drains an area of 0.25 square miles, with the Passumpsic River-TR running nearby.

Despite its historical significance, Institute Pond poses a high hazard potential due to its poor condition assessment. The dam is regulated by the Vermont Department of Environmental Conservation (DEC), with regular inspections and enforcement measures in place. The last inspection was conducted in July 2017, with a scheduled inspection frequency of 1 year. Emergency preparedness measures, such as an Emergency Action Plan (EAP) and inundation maps, are currently not available.

Water resource and climate enthusiasts interested in Institute Pond can appreciate its unique design as a multi-arch Earth dam and its critical role in regulating water flow in the surrounding area. The dam's high hazard potential underscores the need for ongoing maintenance and risk management measures to ensure the safety of downstream communities. As a significant water resource in Caledonia County, Vermont, Institute Pond serves as a reminder of the importance of sustainable dam operation and emergency preparedness in the face of changing climate conditions.

Year_Completed 1911
Dam_Height 26
River_Or_Stream PASSUMPSIC RIVER-TR
Dam_Length 250
Primary_Dam_Type Earth
Surface_Area 3
Hydraulic_Height 26
Drainage_Area 0.25
Nid_Storage 41
Structural_Height 26
Hazard_Potential High
Foundations Soil
Nid_Height 26
       

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