Otto Ericson Dam No.1

TRIBUTARY TO ANTELOPE CREEK· Butte, South Dakota· Built 1948· Earth· 10 ft tall

Key Takeaway

Otto Ericson Dam No.1 is classified as low hazard in South Dakota. It was completed in 1948 and is 78 years old. Its primary use is fire protection.

Physical Details

Dam Height 10 ft (taller than 1.1% in SD)
Dam Length750 ft
Dam TypeEarth
Max Storage85 acre-ft
Normal Storage40 acre-ft
Max Discharge800 cfs
Year Completed1948 (78 years old)
NID IDSD00673

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
State Regulated: Yes
Regulatory Agency: DANR

Ownership

DANIEL J. CONNOR

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Otto Ericson Dam No.1?

Otto Ericson Dam No.1 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 Otto Ericson Dam No.1?

Otto Ericson Dam No.1 is owned by DANIEL J. CONNOR (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Otto Ericson Dam No.1 built?

Otto Ericson Dam No.1 was completed in 1948, making it 78 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 Otto Ericson Dam No.1?

Otto Ericson Dam No.1 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Otto Ericson Dam No.1?

Otto Ericson Dam No.1 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.