Old Lake 177 Dam

TR-LAKE CREEK· Montgomery, Texas· Built 1964· Earth· 15 ft tall
High Hazard Recreation Private

Key Takeaway

Old Lake 177 Dam is classified as high hazard in Texas. It was completed in 1964 and is 62 years old. Its primary use is recreation. 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 15 ft (taller than 15.4% in TX)
Dam Length372 ft
Dam TypeEarth
Max Storage75 acre-ft
Normal Storage40 acre-ft
Surface Area9 acres
Drainage Area0 sq mi
Max Discharge60 cfs
Year Completed1964 (62 years old)
NID IDTX00106

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: August 4, 2021
State Regulated: Yes
Regulatory Agency: TCEQ

Ownership

177 LAKE ESTATES ASSN INC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Old Lake 177 Dam?

Old Lake 177 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 Old Lake 177 Dam?

Old Lake 177 Dam is owned by 177 LAKE ESTATES ASSN INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Old Lake 177 Dam built?

Old Lake 177 Dam was completed in 1964, making it 62 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 Old Lake 177 Dam?

Old Lake 177 Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Old Lake 177 Dam?

Old Lake 177 Dam has a dam height of 15 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 Old Lake 177 Dam last inspected?

Old Lake 177 Dam was last inspected on August 4, 2021. 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.