Crystal Lake Dam
Crystal Lake Dam is a concrete dam located in Essex County, Massachusetts, built in 1930. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Crystal Lake Dam
The primary purpose of Crystal Lake Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Haverhill (local government). It impounds the Creek Brook near Haverhill.
The dam stands 8 feet tall and stretches 285 feet across, creates a reservoir covering 170 acres, has a maximum storage capacity of 2,762 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1930, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/15/2023.
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Location
| State | Massachusetts |
| County | Essex |
| Nearest City | Haverhill |
| River/Stream | Creek Brook |
| Coordinates | 42.79748, -71.13918 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 8 ft |
| Dam Length | 285 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 2,762 acre-ft |
| Max Storage | 2,762 acre-ft |
| Normal Storage | 2,417 acre-ft |
| Surface Area | 170 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 170 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Haverhill |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/15/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA01140 |
| Federal ID | MA01140 |
| More Info | State Dam Safety Program |