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Platte River at Grand Island

WaterClaim has completed a detailed review of the Platte River stream gage at Grand Island. This consisted of looking at over 25,000 daily gage entries. Note, we used all publicly available data. Please see the complete report in PDF format at:

Platte River Report

Highlighted findings:

  1. Total stream flow during the most recent seventeen years is nearly 50% more than the flow of the seventeen years between 1935-1952.
  2. The dam has eliminated 90% of the dry stream days. Prior to the dam, the stream at Grand Island was dry 17% of the time. During the most recent seventeen years, the stream has only been dry 2% of the time.
  3. There have been more floods/stream surge days in the most recent seventeen years as compared to the seventeen pre-dam years.

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