Point Of Rocks

Point Of Rocks is an earth dam located in Logan County, Colorado, built in 1948. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Point Of Rocks

The primary purpose of Point Of Rocks is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by North Sterling Irrigation District (yahn, Jim) (private). It impounds the Cedar Creek near Iliff.

The dam stands 86 feet tall and stretches 5,080 feet across, creates a reservoir covering 2,880 acres, has a maximum storage capacity of 113,600 acre-feet, and collects water from a drainage area of 370 square miles. Completed in 1948, the structure is well-established, with more than 75 years of service.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 10/11/2022.

At 86 feet, this dam is taller than 97% of all dams in the United States.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Colorado dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateColorado
CountyLogan
Nearest CityIliff
River/StreamCedar Creek
Coordinates40.78523, -103.26634

Physical Characteristics

Dam TypeEarth
NID Height86 ft
Dam Height60 ft
Dam Length5,080 ft
Year Completed1948 (78 years old)

Storage & Hydraulics

NID Storage113,600 acre-ft
Max Storage113,600 acre-ft
Normal Storage74,590 acre-ft
Surface Area2,880 acres
Drainage Area370 sq mi
Max Discharge8,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerNORTH STERLING IRRIGATION DISTRICT (YAHN, JIM)
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection10/11/2022
Emergency Action PlanYes

Identifiers

NID IDCO00384
Federal IDCO00384
More InfoState Dam Safety Program

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