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State · United States · USGS · BOR · USACE · CDEC

Kansas

57.8% average fill

Measured

34

Volume stored

4,967 hm³

Measured capacity

8,589 hm³

Critical

5

Low level

7

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Reservoirs

Sorted by capacity

PERRY LK NR PERRY, KS

low
29.0%275 hm³View →

Updated 2026-09-10

Perry Dam & Reservoir

low
29.0%275 hm³View →

Updated 2026-09-11

TUTTLE C LK NR MANHATTAN, KS

49.2%366 hm³View →

Updated 2026-09-10

Tuttle Creek Dam & Reservoir

49.3%365 hm³View →

Updated 2026-09-11

MILFORD LAKE NR JUNCTION CITY, KS

103.0%494 hm³View →

Updated 2026-09-10

Milford Dam & Reservoir

102.9%493 hm³View →

Updated 2026-09-11

John Redmond Lake

critical
19.8%76 hm³View →

Updated 2026-09-11

WILSON LK NR WILSON, KS

79.8%241 hm³View →

Updated 2026-09-10

Wilson Dam & Reservoir

79.8%241 hm³View →

Updated 2026-09-11

Waconda Lake

79.1%236 hm³View →

Updated 2026-09-09

Cedar Bluff Reservoir

low
29.4%67 hm³View →

Updated 2026-09-10

CLINTON LK NR LAWRENCE, KS

67.1%152 hm³View →

Updated 2026-09-10

Clinton Dam & Reservoir

73.0%151 hm³View →

Updated 2026-09-11

Cheney Reservoir

98.0%202 hm³View →

Updated 2026-09-09

El Dorado Lake

88.2%176 hm³View →

Updated 2026-09-11

MELVERN LK NR MELVERN, KS

96.6%183 hm³View →

Updated 2026-09-10

Melvern Dam & Reservoir

95.3%181 hm³View →

Updated 2026-09-11

POMONA LK NR QUENEMO, KS

50.2%68 hm³View →

Updated 2026-09-10

Toronto Lake

critical
15.5%20 hm³View →

Updated 2026-09-11

Kirwin Reservoir

critical
17.2%21 hm³View →

Updated 2026-09-09

Elk City Lake

low
33.0%39 hm³View →

Updated 2026-09-09

Fall River Lake

low
24.6%26 hm³View →

Updated 2026-09-11

Marion Lake

90.8%90 hm³View →

Updated 2026-09-11

Webster Dam

critical
14.1%14 hm³View →

Updated 2026-09-10

Webster Reservoir

critical
14.1%13 hm³View →

Updated 2026-09-09

HILLSDALE LK NR HILLSDALE, KS

101.2%95 hm³View →

Updated 2026-09-10

Hillsdale Dam & Reservoir

101.2%95 hm³View →

Updated 2026-09-11

Pomona Dam & Reservoir

78.3%68 hm³View →

Updated 2026-09-11

KANOPOLIS LK NR KANOPOLIS, KS

88.0%67 hm³View →

Updated 2026-09-10

Kanopolis Dam & Reservoir

87.9%67 hm³View →

Updated 2026-09-11

Council Grove Lake

84.9%51 hm³View →

Updated 2026-09-11

Lovewell Reservoir

low
31.8%16 hm³View →

Updated 2026-09-09

Keith Sebelius Lake

low
28.8%13 hm³View →

Updated 2026-09-09

Big Hill Lake

90.1%30 hm³View →

Updated 2026-09-11

Storage from official US gauges (USGS, USACE, Bureau of Reclamation, CDEC). Fill % uses design capacity from the National Inventory of Dams where available; a few sites without a match fall back to the 5-year maximum.

About reservoirs in Kansas

As of September 11, 2026, the reservoirs we track across Kansas that report live levels hold roughly 4,967 hm³ of water — about 57.8% of their combined capacity. Taken together, Kansas's reservoirs are within their normal operating range.

Across the region, 5 reservoirs are at critically low levels and 7 are low. MILFORD LAKE NR JUNCTION CITY, KS is the fullest at 103.0%, while Webster Reservoir is the lowest at 14.1%.

Over the most recent week on record, 1 reservoir fell across Kansas.

Storage figures for Kansas come from USGS · USACE · BOR · CDEC; the most recent reading is from September 11, 2026. Each reservoir below links to its own page with full history and seasonal context.

Kansas at a glance

Reservoirs tracked
34
Average fill
57.8%
Water stored
4,967 hm³
Combined capacity
8,589 hm³
At critically low levels
5
Fullest
MILFORD LAKE NR JUNCTION CITY, KS (103.0%)
Lowest
Webster Reservoir (14.1%)
Last updated
September 11, 2026
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