Falls Mill Upper Dam

YANTIC RIVER· New London, Connecticut· Built 1910· Masonry· 10 ft tall
Significant Hazard Recreation Local Government

Key Takeaway

Falls Mill Upper Dam is classified as significant hazard in Connecticut. It was completed in 1910 and is 116 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 10 ft (taller than 29.6% in CT)
Dam Length75 ft
Dam TypeMasonry
Max Storage72 acre-ft
Normal Storage72 acre-ft
Surface Area8 acres
Drainage Area98 sq mi
Max Discharge1,480 cfs
Year Completed1910 (116 years old)
NID IDCT00575

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
State Regulated: Yes
Regulatory Agency: DEEP

Ownership

City of Norwich

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Falls Mill Upper Dam?

Falls Mill Upper 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 Falls Mill Upper Dam?

Falls Mill Upper Dam is owned by City of Norwich (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Falls Mill Upper Dam built?

Falls Mill Upper Dam was completed in 1910, making it 116 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 Falls Mill Upper Dam?

Falls Mill Upper Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Falls Mill Upper Dam?

Falls Mill Upper Dam has a dam height of 10 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.

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.