Sister Grove Creek WS SCS Site 3 Dam

WOLF RUN CREEK· Collin, Texas· Built 1963· Earth· 33 ft tall

High Hazard Flood Risk Reduction Local Government

Key Takeaway

Sister Grove Creek WS SCS Site 3 Dam is classified as high hazard in Texas. It was completed in 1963 and is 63 years old. Its primary use is flood risk reduction. 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	33 ft (taller than 74.3% in TX)
Dam Length	1,260 ft
Dam Type	Earth
Max Storage	548 acre-ft
Normal Storage	113 acre-ft

Surface Area	19 acres
Drainage Area	1 sq mi
Max Discharge	3,608 cfs
Year Completed	1963 (63 years old)
NID ID	TX04253

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: Yes

Last Inspection: September 26, 2019

State Regulated: Yes

Regulatory Agency: TCEQ

Ownership

COLLIN COUNTY;COLLIN COUNTY SWCD

Local Government

Nearby Dams

Sister Grove Creek WS SCS Site 4 Dam

Collin, TX

Significant Hazard 28 ft

Sister Grove Creek WS SCS Site 2 Dam

Collin, TX

Low Hazard 34 ft

Sister Grove Creek WS SCS Site 38 Dam

Collin, TX

High Hazard 36 ft

Collin County Adventure Camp Dam No 1

Collin, TX

Low Hazard 15 ft

Sister Grove Creek WS SCS Site 13 Dam

Collin, TX

Low Hazard 39 ft

Sister Grove Creek WS SCS Site 1 Dam

Collin, TX

Low Hazard 43 ft

Collin County Adventure Camp Dam No 2

Collin, TX

Low Hazard 12 ft

Sister Grove Creek WS SCS Site 5 Dam

Collin, TX

Significant Hazard 49 ft

Frequently Asked Questions

What is the hazard classification of Sister Grove Creek WS SCS Site 3 Dam?

Sister Grove Creek WS SCS Site 3 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 Sister Grove Creek WS SCS Site 3 Dam?

Sister Grove Creek WS SCS Site 3 Dam is owned by COLLIN COUNTY;COLLIN COUNTY SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Sister Grove Creek WS SCS Site 3 Dam built?

Sister Grove Creek WS SCS Site 3 Dam was completed in 1963, making it 63 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 Sister Grove Creek WS SCS Site 3 Dam?

Sister Grove Creek WS SCS Site 3 Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Sister Grove Creek WS SCS Site 3 Dam?

Sister Grove Creek WS SCS Site 3 Dam has a dam height of 33 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 Sister Grove Creek WS SCS Site 3 Dam last inspected?

Sister Grove Creek WS SCS Site 3 Dam was last inspected on September 26, 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.