Godfrey Jack

About Godfrey Jack

The primary purpose of Godfrey Jack is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Gary & Shannon G Barker (private). It impounds the Tr Glasses Cr.

The dam stands 45 feet tall, creates a reservoir covering 36 acres, and has a maximum storage capacity of 190 acre-feet. Completed in 1979, the structure is 47 years old.

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. The most recent inspection on record was 11/20/2002. That was 23 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.

At 45 feet, this dam is taller than 91% of dams nationwide.

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 Oklahoma dam safety program can provide more specific information about emergency planning for this structure.

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