Toponce Ditch Dam Lower

PORTNEUF RIVER TOPONCE CREEK· Caribou, Idaho· 18 ft tall
Low Hazard Irrigation Private

Key Takeaway

Toponce Ditch Dam Lower is classified as low hazard in Idaho. Its primary use is irrigation.

Physical Details

Dam Height 18 ft (taller than 20.1% in ID)
Dam Length1,600 ft
Normal Storage78 acre-ft
Surface Area12 acres
NID IDID05032

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: July 23, 2018
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Toponce Ditch Dam Lower?

Toponce Ditch Dam Lower 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 Toponce Ditch Dam Lower?

Toponce Ditch Dam Lower is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Toponce Ditch Dam Lower?

Toponce Ditch Dam Lower 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 Toponce Ditch Dam Lower?

Toponce Ditch Dam Lower has a dam height of 18 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 Toponce Ditch Dam Lower last inspected?

Toponce Ditch Dam Lower was last inspected on July 23, 2018. 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.