Jolly Ranch

WETZEL CREEK· Arapahoe, Colorado· Built 1987· Earth· 19 ft tall

Key Takeaway

Jolly Ranch is classified as low hazard in Colorado. It was completed in 1987 and is 39 years old. Its primary use is fire protection.

Physical Details

Dam Height 19 ft (taller than 32.7% in CO)
Dam Length400 ft
Dam TypeEarth
Max Storage110 acre-ft
Normal Storage29 acre-ft
Surface Area10 acres
Drainage Area4 sq mi
Max Discharge6,000 cfs
Year Completed1987 (39 years old)
NID IDCO02326

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: February 5, 2013
State Regulated: Yes
Regulatory Agency: DWR

Ownership

CLEAN HARBORS DEER TRAIL, LLC (JACK KEHOE)

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Jolly Ranch?

Jolly Ranch 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 Jolly Ranch?

Jolly Ranch is owned by CLEAN HARBORS DEER TRAIL, LLC (JACK KEHOE) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Jolly Ranch built?

Jolly Ranch 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 Jolly Ranch?

Jolly Ranch serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Jolly Ranch?

Jolly Ranch has a dam height of 19 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 Jolly Ranch last inspected?

Jolly Ranch was last inspected on February 5, 2013. 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.