North Hartland Dam Reservoir Report
Last Updated: December 13, 2025
Located in Hartland, Vermont, the North Hartland Dam, also known as North Hartland Lake, is a crucial structure operated by the US Army Corps of Engineers for flood risk reduction, hydroelectric power generation, and recreation purposes.
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Summary
Completed in 1961, this rockfill dam stands at a height of 182 feet and spans 1,640 feet, with a storage capacity of 94,600 acre-feet. The dam's spillway, with a width of 465 feet, can release a maximum discharge of 160,900 cubic feet per second, reducing the risk of flooding for surrounding communities along the Ottauquechee River.
Despite being classified as having a moderate risk level, the North Hartland Dam plays a vital role in mitigating flood threats to towns like Hartland, White River Junction, and Windsor, Vermont, as well as West Lebanon, New Hampshire. While the likelihood of dam failure is extremely low, potential scenarios include uncontrolled high-volume water releases during significant storm events or breaches resulting in downstream flooding. To manage these risks, the USACE conducts regular inspections, maintains the dam's condition, and collaborates with local emergency managers to update emergency action plans and ensure public awareness and readiness for any potential dam-related emergencies.
In the event of a catastrophic failure, the downstream floodwaters could be devastating, impacting communities along the river with swift and deep flooding, risking property damage and loss of life. USACE's risk management measures focus on proactive monitoring and maintenance of the dam, engaging with emergency responders and the public to prepare for emergencies, and updating emergency action plans to mitigate potential risks. Despite the potential risks, the North Hartland Dam remains a critical infrastructure for water resource management and climate resilience in the region.
Year Completed |
1961 |
Dam Length |
1640 |
Dam Height |
182 |
River Or Stream |
OTTAUQUECHEE RIVER |
Primary Dam Type |
Rockfill |
Surface Area |
215 |
Hydraulic Height |
177 |
Drainage Area |
220 |
Nid Storage |
94600 |
Structural Height |
182 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
182 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Quechee State Park
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Velvet Rocks Shelter
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Storrs Pond Rec Area
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Campsite 5
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Campsite 12
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Campsite 16
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North Hartland Dam