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: Sep 15, 2025 8:05:02 PM CST

	Current	4-hour Change	12-hour Change
Head Water (feet NGVD)	834.37	0.10	-0.45
Tail Water (feet NGVD)	805.66	-0.58	-0.21
Total Flow (CFS)*	4172.88	-2436.35	-1140.44

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: Sep 15, 2025 8:05:02 PM CST

	Current	4-hour Change	12-hour Change
Head Water (feet NGVD)	774.36	0.04	0.03
Tail Water (feet NGVD)	730.60	0.02	-0.01
Total Flow (CFS)*	6887.08	108.95	92.11

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

*Total flow through Hydro units and Spillway

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