Alliant Energy - Hydro Flow Rate Data

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Kilbourn Flow Rate Data

NOTE: Data is for informational purposes only and may not be accurate or up to date.

The following data is periodically updated: Last update: Aug 19, 2025 8:05:02 PM CST

	Current	4-hour Change	12-hour Change
Head Water (feet NGVD)	834.50	-0.14	-0.08
Tail Water (feet NGVD)	808.26	0.04	0.13
Total Flow (CFS)*	11899.75	-45.71	55.69

NGVD is National Geodetic Vertical Datum
CFS is Cubic Feet per Second

*Total flow through Hydro units and Spillway

Prairie du Sac Flow Rate Data

NOTE: Data is for informational purposes only and may not be accurate or up to date.

The following data is periodically updated: Last update: Aug 19, 2025 8:05:02 PM CST

	Current	4-hour Change	12-hour Change
Head Water (feet NGVD)	774.37	0.06	0.08
Tail Water (feet NGVD)	731.89	0.41	0.65
Total Flow (CFS)*	11682.71	1483.63	2697.27

NGVD is National Geodetic Vertical Datum
CFS is Cubic Feet per Second

*Total flow through Hydro units and Spillway

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