Mattingly

DRY CREEK· Larimer, Colorado· Built 1969· Earth· 26 ft tall
Low Hazard Irrigation Fish And Wildlife Pond Private

Key Takeaway

Mattingly is classified as low hazard in Colorado. It was completed in 1969 and is 57 years old. Its primary use is irrigation.

Physical Details

Dam Height 26 ft (taller than 56.3% in CO)
Dam Length1,052 ft
Dam TypeEarth
Max Storage820 acre-ft
Normal Storage570 acre-ft
Surface Area50 acres
Drainage Area9 sq mi
Max Discharge1,300 cfs
Year Completed1969 (57 years old)
NID IDCO00142

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: October 11, 2013
State Regulated: Yes
Regulatory Agency: DWR

Ownership

DAVE AND KAE ROSGEN (DAVE ROSGEN)

Private

Nearby Dams

Mountain Supply # 6

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Caverly

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Low Hazard 10 ft

Dry Creek

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Low Hazard 11 ft

Martin Seepage #2

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Low Hazard 18 ft

Geist

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Low Hazard 12 ft

North Poudre #1

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Significant Hazard 16 ft

North Poudre #15

Larimer, CO

High Hazard 53 ft

Douglas

Larimer, CO

High Hazard 39 ft

Frequently Asked Questions

What is the hazard classification of Mattingly?

Mattingly 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 Mattingly?

Mattingly is owned by DAVE AND KAE ROSGEN (DAVE ROSGEN) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mattingly built?

Mattingly was completed in 1969, making it 57 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 Mattingly?

Mattingly serves the following purposes: Irrigation, Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Mattingly?

Mattingly has a dam height of 26 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 Mattingly last inspected?

Mattingly was last inspected on October 11, 2013. 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.