Hutchinson No. 4

TRIB. LITTLE WHITE RIVER· Mellette, South Dakota· Built 1967· Earth· 27 ft tall

Key Takeaway

Hutchinson No. 4 is classified as low hazard in South Dakota. It was completed in 1967 and is 59 years old. Its primary use is fire protection.

Physical Details

Dam Height 27 ft (taller than 71.8% in SD)
Dam Length360 ft
Dam TypeEarth
Max Storage19 acre-ft
Normal Storage14 acre-ft
Max Discharge216 cfs
Year Completed1967 (59 years old)
NID IDSD01297

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

LA HUTCHINSON

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hutchinson No. 4?

Hutchinson No. 4 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 Hutchinson No. 4?

Hutchinson No. 4 is owned by LA HUTCHINSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hutchinson No. 4 built?

Hutchinson No. 4 was completed in 1967, making it 59 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 Hutchinson No. 4?

Hutchinson No. 4 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Hutchinson No. 4?

Hutchinson No. 4 has a dam height of 27 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.