Tmpa Gibbons Creek Mine Dam Sp-1

ROCK LAKE CREEK· Grimes, Texas· Built 1987· Earth· 25 ft tall
Low Hazard Other Local Government

Key Takeaway

Tmpa Gibbons Creek Mine Dam Sp-1 is classified as low hazard in Texas. It was completed in 1987 and is 39 years old. Its primary use is other.

Physical Details

Dam Height 25 ft (taller than 50.9% in TX)
Dam Length4,750 ft
Dam TypeEarth
Max Storage1.1K acre-ft
Normal Storage440 acre-ft
Surface Area88 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1987 (39 years old)
NID IDTX06524

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: April 23, 1987
State Regulated: Yes
Regulatory Agency: TCEQ

Ownership

TEXAS MUNICIPAL POWER AGENCY

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Tmpa Gibbons Creek Mine Dam Sp-1?

Tmpa Gibbons Creek Mine Dam Sp-1 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 Tmpa Gibbons Creek Mine Dam Sp-1?

Tmpa Gibbons Creek Mine Dam Sp-1 is owned by TEXAS MUNICIPAL POWER AGENCY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Tmpa Gibbons Creek Mine Dam Sp-1 built?

Tmpa Gibbons Creek Mine Dam Sp-1 was completed in 1987, making it 39 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 Tmpa Gibbons Creek Mine Dam Sp-1?

Tmpa Gibbons Creek Mine Dam Sp-1 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Tmpa Gibbons Creek Mine Dam Sp-1?

Tmpa Gibbons Creek Mine Dam Sp-1 has a dam height of 25 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 Tmpa Gibbons Creek Mine Dam Sp-1 last inspected?

Tmpa Gibbons Creek Mine Dam Sp-1 was last inspected on April 23, 1987. 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.