Rannefeld Dam

TR-DECKER BRANCH· Montgomery, Texas· Built 1994· Earth· 16 ft tall

High Hazard Private

Key Takeaway

Rannefeld Dam is classified as high hazard in Texas. It was completed in 1994 and is 32 years old. 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	16 ft (taller than 19.7% in TX)
Dam Length	1,100 ft
Dam Type	Earth
Max Storage	115 acre-ft
Normal Storage	26 acre-ft

Surface Area	7 acres
Drainage Area	1 sq mi
Max Discharge	1,343 cfs
Year Completed	1994 (32 years old)
NID ID	TX06922

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: March 2, 2022

State Regulated: Yes

Regulatory Agency: TCEQ

Ownership

DAVID RANNEFELD;ELGIN RANNEFELD

Private

Nearby Dams

Lake Apache Dam

Montgomery, TX

High Hazard 18 ft

Lake Hardin Dam

Montgomery, TX

Significant Hazard 12 ft

Goodson Branch Dam

Montgomery, TX

High Hazard 16 ft

Wagon Wheel Detention Pond Dam

Montgomery, TX

High Hazard 8 ft

Decker Lake Dam

Montgomery, TX

Low Hazard 14 ft

Decker Dry Detention Dam

Montgomery, TX

High Hazard 16 ft

Lake Hollow Dam

Montgomery, TX

High Hazard 19 ft

Lake Hazy Dam

Montgomery, TX

High Hazard 15 ft

Frequently Asked Questions

What is the hazard classification of Rannefeld Dam?

Rannefeld 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 Rannefeld Dam?

Rannefeld Dam is owned by DAVID RANNEFELD;ELGIN RANNEFELD (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Rannefeld Dam built?

Rannefeld Dam was completed in 1994, making it 32 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

How tall is Rannefeld Dam?

Rannefeld Dam has a dam height of 16 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 Rannefeld Dam last inspected?

Rannefeld Dam was last inspected on March 2, 2022. 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.