The 2019 Fall HFE

High Flow Experiment- 2017

2019 High Flow Experiment Snapshot

• The 2019 HFE was not conducted for lack of adequate sediment input from the Paria River

Sediment Conditions

Fall Accounting Period

• Paria input (Jul 1 - Nov 30): 64,848
• Accumulated in Upper Marble Canyon (Jul 1 - Nov 30, lower bound) = -170,000
• Accumulated in Lower Marble Canyon (Jul 1 - Nov 30, lower bound) = -170,000
• Available for HFE: -105,152

Winter Accounting Period

• Paria input (Dec 1 to Apr 1):
• Evacuated from Upper Marble Canyon (Dec 1 to Apr 1, lower bound) =
• Evacuated from Lower Marble Canyon (Dec 1 to Apr 1, lower bound) =
• Available for spring HFE:

SUPPORTING DOCUMENTS

• 2019 Glen Canyon Leadership Team memo for Implementation of Experiments under the Long Term Experimental and Management Plan

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