Hinman

PASS CREEK-TR· Grand, Colorado· Built 1939· Earth· 30 ft tall

Key Takeaway

Hinman is classified as low hazard in Colorado. It was completed in 1939 and is 87 years old. Its primary use is irrigation.

Physical Details

Dam Height 30 ft (taller than 65.6% in CO)
Dam Length600 ft
Dam TypeEarth
Max Storage663 acre-ft
Normal Storage600 acre-ft
Surface Area55 acres
Drainage Area1 sq mi
Max Discharge1,040 cfs
Year Completed1939 (87 years old)
NID IDCO02117

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 4, 2014
State Regulated: Yes
Regulatory Agency: DWR

Ownership

LONG PARK, LLC (COORS, JOHN)

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hinman?

Hinman 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 Hinman?

Hinman is owned by LONG PARK, LLC (COORS, JOHN) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hinman built?

Hinman was completed in 1939, making it 87 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 Hinman?

Hinman serves the following purposes: Irrigation, 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 Hinman?

Hinman has a dam height of 30 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 Hinman last inspected?

Hinman was last inspected on November 4, 2014. 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.