Baltic Mills Dam

MASCOMA RIVER· Grafton, New Hampshire· Built 1919· Concrete· 21 ft tall
Low Hazard Hydroelectric Private

Key Takeaway

Baltic Mills Dam is classified as low hazard in New Hampshire. It was completed in 1919 and is 107 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 21 ft (taller than 74.5% in NH)
Dam Length120 ft
Dam TypeConcrete
Max Storage120 acre-ft
Normal Storage105 acre-ft
Surface Area20 acres
Drainage Area130 sq mi
Year Completed1919 (107 years old)
NID IDNH00273

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: No
Last Inspection: October 21, 2020
State Regulated: Yes
Regulatory Agency: NH DES

Ownership

ENERGETIC BALTIC MILL ENTERPRISES INC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Baltic Mills Dam?

Baltic Mills Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Baltic Mills Dam?

Baltic Mills Dam is owned by ENERGETIC BALTIC MILL ENTERPRISES INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Baltic Mills Dam built?

Baltic Mills Dam was completed in 1919, making it 107 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 Baltic Mills Dam?

Baltic Mills Dam serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Baltic Mills Dam?

Baltic Mills Dam has a dam height of 21 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 Baltic Mills Dam last inspected?

Baltic Mills Dam was last inspected on October 21, 2020. 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.