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North Dakota Severe Summer Weather Awareness Week April 28 through May 2, 2025

WFO BIS SA Display-Dams

WFO BIS Dams

ND SWC Dam Catalog

Lake Darling	Garrison Dam	Pipestem Dam

Elevations	Elevations	Elevations
1606.33 ft: Water on roadway height/top of dam. Higher elevations will overtop dam	1854.00 ft: Maximum operating pool level, water flows over emergency spillway	1502.80 ft: Maximum pool elevation
1601.80 ft: Water flows through spillway (must pass all inflows)	1850.00-1854.00 ft: Exclusive flood control zone	1496.30 ft: Top of flood control pool
1597.00 ft: Summer target elevation	1830.00 ft: Backwater effect begins on the Missouri River at Williston	Current Reservoir Data
AHPS	Inflow/Elevation/Release Forecast	AHPS
	Daily Observed Inflow/Elevation/Release
	AHPS

Jamestown Dam	Dickinson Dam	Heart Butte Dam

Elevations	Elevations	Elevations
1464.00 ft: Max design pool level	2436.60 ft: Crest Elevation of dam	2124.00 ft: Crest Elevation of dam
1454.00 ft: Crest of glory hole	2435.50: Top of flood control zone	2109.00 ft: Auxillary spillway
1445.40: Level when USACOE is required to release 1800 CFS	2423.50: Crest of auxillary spillway	2087.00 ft: Glory hole spillway
Current Reservoir Data	Current Reservoir Data	Current Reservoir Data
AHPS	AHPS	AHPS

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