Boniface Dam

BLACK CREEK· Sullivan, New York· Built 1970· Earth· 12 ft tall
Low Hazard Recreation Private

Key Takeaway

Boniface Dam is classified as low hazard in New York. It was completed in 1970 and is 56 years old. Its primary use is recreation.

Physical Details

Dam Height 12 ft (taller than 23.2% in NY)
Dam Length290 ft
Dam TypeEarth
Max Storage600 acre-ft
Normal Storage115 acre-ft
Surface Area120 acres
Drainage Area1 sq mi
Max Discharge197 cfs
Year Completed1970 (56 years old)
NID IDNY00981

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: November 28, 2011
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

EDWARD BONIFACE

Private

Nearby Dams

Mountaindale Recreation Lake Dam

Sullivan, NY

Low Hazard 16 ft

Keejo Lake Dam

Ulster, NY

Low Hazard 16 ft

Fred Katz Pond Dam

Sullivan, NY

Significant Hazard 17 ft

Silver Lake Dam

Sullivan, NY

Significant Hazard 14 ft

Pine Lake Dam

Sullivan, NY

Low Hazard 13 ft

Sherwood Allen Pond Dam

Sullivan, NY

Low Hazard 8 ft

Beaver Lake Dam

Sullivan, NY

Low Hazard 7 ft

Wurtsboro Hills Dam

Sullivan, NY

Significant Hazard 10 ft

Frequently Asked Questions

What is the hazard classification of Boniface Dam?

Boniface 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 Boniface Dam?

Boniface Dam is owned by EDWARD BONIFACE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Boniface Dam built?

Boniface Dam was completed in 1970, making it 56 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 Boniface Dam?

Boniface 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 Boniface Dam?

Boniface Dam has a dam height of 12 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 Boniface Dam last inspected?

Boniface Dam was last inspected on November 28, 2011. 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.