Robertsville Dam, also known as Robertsville #1 Hydro Dam, is a concrete structure located on the Still River in Colebrook, Connecticut.
Wind
Humidity
Completed in 1887, this dam serves a primary purpose of hydroelectric power generation, with a maximum storage capacity of 134 acre-feet and a surface area of 10.72 acres. The dam stands at a height of 29 feet and spans a length of 171 feet.
Managed by a public utility, the Robertsville Dam is regulated by the Connecticut Department of Energy and Environmental Protection (DEEP) and undergoes regular inspections to ensure its safety and compliance with state regulations. The dam has a spillway width of 106 feet and a maximum discharge capacity of 15,000 cubic feet per second, making it a significant feature in the area's water resource infrastructure.
With a hazard potential classified as "Significant" and a moderate risk assessment rating, the Robertsville Dam plays a crucial role in both water resource management and climate resilience efforts in the region. Its historical significance, combined with its continued operation for hydroelectric power generation, makes it a noteworthy landmark for enthusiasts interested in water resources and climate adaptation strategies.
Year Completed |
1887 |
Dam Length |
171 |
Dam Height |
29 |
River Or Stream |
STILL RIVER |
Primary Dam Type |
Concrete |
Surface Area |
10.72 |
Drainage Area |
49.53 |
Nid Storage |
134 |
Hazard Potential |
Significant |
Foundations |
Rock |
Nid Height |
29 |
The Hartland Headwaters To The Confluence With The Salmon Brook Main Stem
New Hartford/Canton Town Line To The Confluence With The Nepaug River
The Massachusetts-Connecticut State Line In Hartland To The Confluence With The Salmon Brook Main Stem
The Confluence With The Nepaug River To A Point 0.2 Miles Below The Lower Collinsville Dam Tailrace