Lewis Reservoir Dam

CIMARRONCITO CREEK-OS· Colfax, New Mexico· Built 1933· Earth· 16 ft tall
Low Hazard Irrigation Private

Key Takeaway

Lewis Reservoir Dam is classified as low hazard in New Mexico. It was completed in 1933 and is 93 years old. Its primary use is irrigation.

Physical Details

Dam Height 16 ft (taller than 10.1% in NM)
Dam Length750 ft
Dam TypeEarth
Max Storage156 acre-ft
Normal Storage110 acre-ft
Surface Area30 acres
Drainage Area1 sq mi
Year Completed1933 (93 years old)
NID IDNM00140

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: September 3, 2014
State Regulated: Yes
Regulatory Agency: OFFICE OF THE STATE ENGINEER

Ownership

UU BAR RANCH

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lewis Reservoir Dam?

Lewis Reservoir Dam 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 Lewis Reservoir Dam?

Lewis Reservoir Dam is owned by UU BAR RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lewis Reservoir Dam built?

Lewis Reservoir Dam was completed in 1933, making it 93 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 Lewis Reservoir Dam?

Lewis Reservoir Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Lewis Reservoir Dam?

Lewis Reservoir 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 Lewis Reservoir Dam last inspected?

Lewis Reservoir Dam was last inspected on September 3, 2014. 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.