Diamond Lake Watershed Site C-14

TR-MOON CREEK· Poweshiek, Iowa· Built 1972· Earth· 29 ft tall
Significant Hazard Fire Protection Stock Or Small Fish Pond Flood Risk Reduction Local Government

Key Takeaway

Diamond Lake Watershed Site C-14 is classified as significant hazard in Iowa. It was completed in 1972 and is 54 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 29 ft (taller than 42.8% in IA)
Dam Length638 ft
Dam TypeEarth
Max Storage115 acre-ft
Normal Storage42 acre-ft
Surface Area8 acres
Drainage Area1 sq mi
Max Discharge0 cfs
Year Completed1972 (54 years old)
NID IDIA00963

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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

Emergency Action Plan: No
Last Inspection: April 7, 1977
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

Poweshiek County SWCD

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Diamond Lake Watershed Site C-14?

Diamond Lake Watershed Site C-14 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Diamond Lake Watershed Site C-14?

Diamond Lake Watershed Site C-14 is owned by Poweshiek County SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Diamond Lake Watershed Site C-14 built?

Diamond Lake Watershed Site C-14 was completed in 1972, making it 54 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 Diamond Lake Watershed Site C-14?

Diamond Lake Watershed Site C-14 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Diamond Lake Watershed Site C-14?

Diamond Lake Watershed Site C-14 has a dam height of 29 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 Diamond Lake Watershed Site C-14 last inspected?

Diamond Lake Watershed Site C-14 was last inspected on April 7, 1977. 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.