Clark Northwest Dam

TRIB. OF LITTLE ELM CREEK· Collin, Texas· Earth· 21 ft tall

High Hazard Private

Key Takeaway

Clark Northwest Dam is classified as high hazard in Texas. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height	21 ft (taller than 38.8% in TX)
Dam Length	1,200 ft
Dam Type	Earth
Max Storage	414 acre-ft
Normal Storage	166 acre-ft

Max Discharge	1 cfs
NID ID	TX07454

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

Emergency Action Plan: No

Last Inspection: December 5, 2019

State Regulated: Yes

Regulatory Agency: TCEQ

Ownership

RL TRUST

Private

Nearby Dams

Little Elm and Laterals WS SCS Site 12 Dam

Collin, TX

Low Hazard 31 ft

Little Elm and Laterals WS SCS Site 11 Dam

Collin, TX

Low Hazard 21 ft

Little Elm and Laterals WS SCS Site 10 Dam

Grayson, TX

Low Hazard 24 ft

Little Elm and Laterals WS SCS Site 7 Dam

Grayson, TX

Low Hazard 25 ft

Little Elm Laterals WS SCS Site 17 Dam

Denton, TX

Low Hazard 29 ft

Frequently Asked Questions

What is the hazard classification of Clark Northwest Dam?

Clark Northwest Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Clark Northwest Dam?

Clark Northwest Dam is owned by RL TRUST (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

How tall is Clark Northwest Dam?

Clark Northwest Dam has a dam height of 21 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 Clark Northwest Dam last inspected?

Clark Northwest Dam was last inspected on December 5, 2019. 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.