Cold Spring Flood Control Site #9 Dam, also known as North Branch Park River Site 9, is a state-owned dam located in West Hartford, Connecticut.
Wind
Humidity
Built in 1968 by designer Anderson_Nichols, this earth dam stands 20 feet tall and spans 1040 feet along the Tumble Brook. Its primary purpose is flood risk reduction, with a storage capacity of 1760 acre-feet and a surface area of 137 acres.
Managed by the Connecticut Department of Energy and Environmental Protection (DEEP), the dam is regulated, permitted, inspected, and enforced by the state. Despite its high hazard potential, the dam's condition assessment in 2015 was deemed satisfactory. While having an uncontrolled spillway and outlet gates, the dam's risk assessment is moderate, with a risk management plan yet to be detailed. The dam's emergency action plan (EAP) status and inundation maps readiness are currently unknown, reflecting potential areas for improvement in emergency preparedness.
Located in the New England District, Cold Spring Flood Control Site #9 Dam plays a crucial role in mitigating flood risks in the area. With its strategic position along Tumble Brook, the dam serves as a critical infrastructure for flood control efforts in Hartford County. As water resource and climate enthusiasts, understanding the functionality and condition of such dams is essential for ensuring the safety and resilience of communities in the face of changing weather patterns and increasing flood risks.
Year Completed |
1968 |
Dam Length |
1040 |
Dam Height |
20 |
River Or Stream |
TUMBLE BROOK |
Primary Dam Type |
Earth |
Surface Area |
137 |
Drainage Area |
1.94 |
Nid Storage |
1760 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
20 |
| Location | Reservations | Toilets |
|---|---|---|
Beech Grove 5
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DEEP campsite
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Primitve Camping Area
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Begins Below The Tailrace Of The Rainbow Dam To The Confluence With The Connecticut River
Begins Below The Tailrace Of The Lower Collinsville Dam To The Route 187 Bridge
The Confluence With The Nepaug River To A Point 0.2 Miles Below The Lower Collinsville Dam Tailrace
The Confluence Of The East And West Branches To The Confluence With The Farmington River In East Granby
New Hartford/Canton Town Line To The Confluence With The Nepaug River