Lawrence Street Reservoir Report
Nearby: Hall Street Tremont Waste Gates
Last Updated: December 17, 2025
Lawrence Street, also known as Lawrence Dam, is a captivating structure located in Lowell, Massachusetts, with a rich history dating back to its completion in 1831.
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Summary
This private dam, primarily used for hydroelectric purposes, stands at a height of 12 feet and has a hydraulic height of 5 feet, serving as a vital component in flood risk reduction, navigation, and recreation in the area. With a maximum storage capacity of 4,500 acre-feet and a surface area of 720 acres, Lawrence Street plays a crucial role in water resource management and conservation efforts.
Managed by the Federal Energy Regulatory Commission, Lawrence Street has a low hazard potential and a moderate risk assessment rating. The dam's associated structures include multiple components such as spillways and outlet gates, ensuring operational efficiency and safety. While the condition assessment is not available, regular inspections are conducted every three years to monitor the dam's integrity and functionality. With its unique design and multifunctional capabilities, Lawrence Street remains a key landmark in the region, reflecting the intersection of water resource management and climate adaptation strategies.
Year Completed |
1831 |
Dam Length |
100 |
Dam Height |
12 |
River Or Stream |
Lawrence Canal |
Primary Dam Type |
Masonry |
Surface Area |
720 |
Hydraulic Height |
5 |
Nid Storage |
4500 |
Structural Height |
15 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
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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.
Lawrence Street
Billerica Street 5-65, Lowell