Crossing At Lisbon Detention Dam

I-395 DRAINAGE QUINEBAUG· New London, Connecticut· Built 2008· Earth· 16 ft tall
Significant Hazard Flood Risk Reduction Private

Key Takeaway

Crossing At Lisbon Detention Dam is classified as significant hazard in Connecticut. It was completed in 2008 and is 18 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 16 ft (taller than 63.7% in CT)
Dam Length290 ft
Dam TypeEarth
Normal Storage0 acre-ft
Year Completed2008 (18 years old)
NID IDCT50012

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: April 20, 2016
State Regulated: Yes
Regulatory Agency: DEEP

Ownership

CL One Associates, LLC;Lisbon Investors, LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Crossing At Lisbon Detention Dam?

Crossing At Lisbon Detention Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Crossing At Lisbon Detention Dam?

Crossing At Lisbon Detention Dam is owned by CL One Associates, LLC;Lisbon Investors, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Crossing At Lisbon Detention Dam built?

Crossing At Lisbon Detention Dam was completed in 2008, making it 18 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Crossing At Lisbon Detention Dam?

Crossing At Lisbon Detention Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Crossing At Lisbon Detention Dam?

Crossing At Lisbon Detention Dam has a dam height of 16 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Crossing At Lisbon Detention Dam last inspected?

Crossing At Lisbon Detention Dam was last inspected on April 20, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.