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Water Levels: Lake Minnetonka and Gray's Bay Dam

Questions about water levels, canoeing, or the MCWD's operation of the Gray's Bay dam? Learn more about Gray's Bay Dam.

You can view real-time water level readings of Lake Minnetonka here and Minnehaha Creek here, as part of a partnership between MCWD and the U.S. Geological Survey. Please note, the USGS refers to creek flow as "discharge" on their site.

Ideal creek flows for paddling are between 75 and 150 cubic feet per second (cfs). We do not recommend paddling when the creek's flow is higher than 150 cfs. Conditions can change rapidly, especially after rainfall. We recommend using the real-time flow at Hiawatha Ave to gauge how fast the creek is flowing in the lower half of the creek, and the Gray's Bay Dam discharge to gauge how fast the creek is flowing in the upper half of the creek. Learn more about paddling the creek.

Follow Gray's Bay Dam on Twitter for regular updates on water level and dam discharge.

Most recent reading (September 24, 2021)
Lake Minnetonka: 928.29 feet | Gray's Bay Dam: 0 CFS
Date Lake Level (feet above sea level) Dam Discharge (cubic feet per second) Explanation
September 24, 2021 928.29 Dam closed The dam remains closed. MCWD is currently in a moderate drought designation as the lack of rain has led to a 4.3 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 7 days.
September 22, 2021 928.29 Dam closed The dam remains closed. MCWD is currently in a moderate drought designation as the lack of rain has led to a 4.1 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 7 days.
September 20, 2021 928.23 Dam closed The dam remains closed. MCWD is currently in a moderate drought designation & lack of rain has led to a 3.99" deficit in precip. Approx. 1.25" of rain is forecast Monday and is unlikely to affect water levels due to prolonged dry conditions.
September 17, 2021 928.29 Dam closed The dam remains closed. MCWD is currently in a moderate drought designation as the lack of rain has led to a 3.9 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 7 days.
September 15, 2021 928.28 Dam closed The dam remains closed. MCWD is currently in a moderate drought designation & lack of rain has led to a 3.75" deficit in precip. Approx. 3/4" of rain is forecast Thursday night & is unlikely to greatly affect water levels due to dry soil conditions.
September 13, 2021 928.26 Dam closed The dam remains closed. MCWD is currently in a moderate drought designation & lack of rain has led to a 3.7" deficit in precip. Approx. 3/4" of rain is forecast Monday night & is unlikely to greatly affect water levels due to dry soil conditions.
September 10, 2021 928.32 Dam closed The dam remains closed. MCWD is currently in a moderate drought designation as the lack of rain has led to a 3.4 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 7 days.
September 8, 2021 928.38 Dam closed The dam remains closed. MCWD is currently in a moderate drought designation as the lack of rain has led to a 3.1 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 7 days.
September 7, 2021 928.40 Dam closed The dam remains closed. MCWD is currently in a moderate drought designation as the lack of rain has led to a 3 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 7 days.
September 3, 2021 928.41 Dam closed The dam remains closed. Despite recent rain, moderate drought condtions persist with a 3.5 inch deficit in precip. totals for the year. Water levels remain low across MCWD and will continue to drop as minimal rain is forecast for the next 7 days.
September 1, 2021 928.41 Dam closed The dam remains closed. MCWD is currently in a severe drought designation & lack of rain has led to a 3.4" deficit in precip. Approx. 1" of rain is forecast Thurs overnight & is unlikely to greatly affect water levels due to dry soil conditions..
August 30, 2021 928.45 Dam closed The dam remains closed. Despite recent rains, drought condtions persist with a 3.2 inch deficit in precip. totals for the year. Water levels remain low across MCWD and will continue to drop as minimal rain is forecast for the next 7 days.
August 27, 2021 928.38 Dam closed Recent rain has increased the lake level 1.5" & increased the creek's flow to 110 cfs.  Dam remains closed as the lake is 2.6" below the 928.6 ft. elevation which allows for the dam to open. MCWD remains in severe drought with a 4.2" deficit in precip.
August 25, 2021 928.25 Dam closed The dam remains closed. MCWD is currently in a severe drought designation & lack of rain has led to a 5.5" deficit in precip. Approx. 3" of rain is forecast Thurs PM-Sun & is unlikely to greatly affect water levels due to extremely dry soils.
August 23, 2021 928.18 Dam closed The dam remains closed. MCWD is currently in a severe drought designation as the lack of rain has led to a 6.55" deficit in precip. totals. Water levels are low across MCWD and will continue to drop without additional precipitation.
August 20, 2021 928.18 Dam closed The dam remains closed. MCWD is currently in a severe drought designation as the lack of rain has led to a 6.27" deficit in precip. totals. Approx. 0.75" of rain is forecast Fri PM & is unlikely to affect water levels due to extremely dry soils.
August 18, 2021 928.21 Dam closed The dam remains closed. MCWD is currently in a severe drought designation as the lack of rain has led to a 6" deficit in precip. totals. Approx. 0.75" of rain is forecast Fri-Sat & is unlikely to affect water levels due to extremely dry soils.
August 16, 2021 928.26 Dam closed The dam remains closed. MCWD is currently in a severe drought designation as the lack of rain has led to a 5.6 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 7 days.
August 13, 2021 928.34 Dam closed The dam remains closed. MCWD is currently in a severe drought designation as the lack of rain has led to a 5.2 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 7 days.
August 11, 2021 928.41 Dam closed The dam remains closed. MCWD is currently in a severe drought designation as the lack of rain has led to a 4.9 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 7 days.
August 9, 2021 928.40 Dam closed The dam remains closed. MCWD is currently in a severe drought designation as the lack of rain has led to a 4.6 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 14 days.
August 6, 2021 928.36 Dam closed The dam remains closed. MCWD is currently in a severe drought designation as the lack of rain has led to a 6.3" deficit in precip. totals. Less than 1" of rain is forecast over the weekend & is unlikely to affect water levels due to extremely dry soils.
August 4, 2021 928.39 Dam closed The dam remains closed. MCWD is currently in a severe drought designation as the lack of rain has led to a 6.5 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 14 days.
August 2, 2021 928.41 Dam closed The dam remains closed. MCWD is currently in a severe drought designation as the lack of rain has led to a 6.1 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 14 days.
July 30, 2021 928.47 Dam closed The dam remains closed. MCWD is currently in a severe drought designation as the lack of rain has led to a 5.7 inch deficit in precip. totals. Water levels are low across MCWD and will continue to drop as minimal rain is forecast for the next 14 days.
July 28, 2021 928.49 Dam closed The dam is closed per the operating plan, which dictates closure when Lake Minnetonka falls below 928.6ft. The dam will remain closed unless the watershed receives enough rain to increase the lake level above 928.6ft. Rain totals are 5.5 in. below normal.
July 26, 2021 928.53 Dam closed The dam is closed per the operating plan, which dictates closure when Lake Minnetonka falls below 928.6ft. The dam will remain closed unless the watershed receives enough rain to increase the lake level above 928.6ft. Rain totals are 5.3 in. below normal.
July 23, 2021 928.58 Dam closed The dam is closed per the operating plan, which dictates closure when Lake Minnetonka falls below 928.6ft.The dam will remain closed unless the watershed receives enough rain to increase the lake level above 928.6ft. Rain totals are 5 in. below normal.
July 21, 2021 928.59 Dam closed The dam is closed per the operating plan, which dictates closure when Lake Minnetonka falls below 928.60ft.The dam will remain closed unless the watershed receives enough rain to increase the lake level above 928.60ft. Rain totals are 4.8in. below normal.
July 19, 2021 928.64 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals are 4.5 inches below normal. The dam will close when the lake falls below 928.60 ft.
July 16, 2021 928.67 12 On 7/14 approx. 1-2" of rain fell over the upper watershed & Lake Minnetonka's water level rose above 928.60 ft. The Gray's Bay dam was opened and is discharging 12 cfs. When the lake level falls below 928.60 ft. the dam will be closed again.
July 14, 2021 928.58 Dam closed The dam is closed per the operating plan, which dictates closure when Lake Minnetonka’s water level has fallen below 928.60 ft. The dam will remain closed unless the watershed receives enough precipitation to increase the lake level above 928.60 ft.
July 12, 2021 928.61 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals are below normal. Approx. 1.5" rain is forecast Wed 7/14.
July 9, 2021 928.65 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals are 3 inches below normal. The dam will close when the lake falls below 928.60 ft.
July 7, 2021 928.70 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals are 3 inches below normal. The dam will close when the lake falls below 928.60 ft.
July 6, 2021 928.72 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. Approx. 0.5-1" rain forecast through Wed (7/7).
July 2, 2021 928.80 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. There is minimal rain in the 7 day forecast.
June 30, 2021 928.84 12 Dam discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. There is no rain in the 7 day forecast.
June 28, 2021 928.84 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. There is minimal rain in the 7 day forecast.
June 25, 2021 928.84 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. There is minimal rain in the 7 day forecast.
June 23, 2021 928.87 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. There is minimal rain in the 7 day forecast.
June 21, 2021 928.95 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. There is minimal rain in the 7 day forecast.
June 18, 2021 928.99 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. Rain is forecast for Sunday 6/20/21.
June 16, 2021 929.02 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. There is minimal rain in the 7 day forecast.
June 14, 2021 929.08 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. There is no significant rain in the 7 day forecast.
June 11, 2021 929.16 12 Dam discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. There is no rain in the 7 day forecast.
June 9, 2021 929.19 12 Discharge remains at the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. There is no significant rain in the 7 day forecast.
June 7, 2021 929.21 12 Dam discharge reduced slightly to the min. allowed rate of 12 cfs. The release or 12 cfs is being done to both retain water on the lake and prolong creek flow as rain totals remain below normal. There is no rain in the 7 day forecast.
June 4, 2021 929.29 20 Dam discharge remains at the minimum allowed rate of 20 cfs. The release of 20 cfs is being done to both retain water on the lake and prolong creek flow, in case rain totals remain below normal. There is no precipitation in the 7 day forecast.
June 2, 2021 929.28 20 Dam discharge remains at the minimum allowed rate of 20 cfs. The release of 20 cfs is being done to both retain water on the lake and prolong creek flow, in case rain totals remain below normal. There is no precipitation in the 7 day forecast.
June 1, 2021 929.29 20 Dam discharge remains at the minimum allowed rate of 20 cfs. The release of 20 cfs is being done to both retain water on the lake and prolong creek flow, in case rain totals remain below normal. There is no precipitation in the 7 day forecast.
May 28, 2021 929.30 20 Dam discharge remains at the minimum allowed rate of 20 cfs. The release of 20 cfs is being done to both retain water on the lake and prolong creek flow, in case rain totals remain below normal. Minimal precipitation is forecast over the next 7 days.
May 26, 2021 929.28 20 Dam discharge remains at the min. allowed rate of 20 cfs. 1-inch of rain is forecast May 27-28. Dam discharge and water levels will be reassessed after this rain on May 28.
May 24, 2021 929.35 20 Dam discharge remains at the min. allowed rate of 20 cfs. The release of 20 cfs is being done to both retain water on the lake and prolong creek flow in case rain totals remain below normal.
May 21, 2021 929.33 20 Dam discharge increased slightly to 20 cfs as rain over the past few days increased the lake level over 2 in. The dam operating plan allows a minimum discharge of 20 cfs at this lake elevation. Despite the recent rain, rain totals remain below normal.
May 19, 2021 929.15 12 Discharge remains at the min. allowed rate of 12 cfs. Due to below normal rain, water levels are low & the release rate of 12 cfs is being done to both retain water on the lake and prolong creek flow in case conditions remain dry.
May 17, 2021 929.14 12 Discharge remains at the min. allowed rate of 12 cfs. Due to below normal rain, water levels are low & the release rate of 12 cfs is being done to both retain water on the lake and prolong creek flow in case conditions remain dry.
May 14, 2021 929.18 12 The dam is open & is releasing the min. allowed rate of 12 cfs. Due to below normal rain, water levels are low & the release rate of 12 cfs is being done to retain lake water and prolong creek flow in case conditions remain dry.
May 12, 2021 929.19 Dam closed Due to a dry forecast the dam will remain closed until 5/13. Per the operating plan the dam will open 5/14 & release the min allowed discharge (12 cfs). Water levels are low throughout the watershed due to below normal rain.
May 10, 2021 929.20 Dam closed Due to a dry forecast the dam will remain closed until 5/13. Per the operating plan the dam will open 5/14 & release the min allowed discharge (12 cfs). Water levels are low throughout the watershed due to below normal rain.
May 7, 2021 929.23 Dam closed Due to minimal rain in the 7-day forecast the dam remains closed. Minnehaha Creek is flowing at 7 cfs at Hiawatha Avenue.
May 5, 2021 929.23 Dam closed Due to minimal rain in the 7-day forecast the dam remains closed. Minnehaha Creek is flowing at 9 cfs at Hiawatha Avenue.
May 3, 2021 929.25 Dam closed Due to an on-going dry 7-day forecast the dam remains closed. Minnehaha Creek is flowing at ~11 cfs at Hiawatha Avenue.
April 30, 2021 929.23 Dam closed Due to an on-going mostly dry 7-day forecast the dam remains closed. Minnehaha Creek is flowing at ~19 cfs at Hiawatha Avenue.
April 28, 2021 929.24 Dam closed Due to minimal rain in the 7-day forecast the dam remains closed. Minnehaha Creek is flowing at 32 cfs at Hiawatha Avenue.
April 26, 2021 929.19 Dam closed Due to minimal rain in the 7-day forecast the dam remains closed. Minnehaha Creek is flowing at 15 cfs at Hiawatha Avenue.
April 23, 2021 929.20 Dam closed Due to minimal rain in the 7-day forecast the dam remains closed. Minnehaha Creek is flowing at 12 cfs at Hiawatha Avenue.
April 21, 2021 929.22 Dam closed Due to an on-going mostly dry 7-day forecast the dam remains closed. Minnehaha Creek is flowing at ~14 cfs at Hiawatha Avenue.
April 19, 2021 929.23 Dam closed Due to an on-going mostly dry 14-day forecast the dam remains closed. Minnehaha Creek is flowing at ~17 cfs at Hiawatha Avenue.
April 16, 2021 929.22 Dam closed Due to a mostly dry 14-day weather forecast the dam remains closed. Minnehaha Creek is flowing at ~22 cfs at Hiawatha Avenue.
April 14, 2021 929.21 Dam closed Due to a mostly dry 14-day weather forecast the dam remains closed. Minnehaha Creek is flowing at ~26 cfs at Hiawatha Avenue.
April 12, 2021 929.22 Dam closed Due to a mostly dry 14-day weather forecast the dam remains closed. Minnehaha Creek is flowing at ~27 cfs at Hiawatha Avenue.
April 9, 2021 929.16 Dam closed The dam remains closed due to a dry 14-day forecast, a lower than average lake level for early April, and because Minnehaha Creek is flowing at approx. 50 cfs near Hiawatha Ave. from this week's rain.
April 7, 2021 929.07 Dam closed Over the last two days the upper watershed has received approximately a half inch of precipitation and the lake has risen minimally. Another 1-1.5 inches of rain are expected over the next few days. Water levels will be reassessed on Friday.
April 5, 2021 929.02 Dam closed Due to a lower than average lake level for early April the dam is currently closed. Dam operations will be reassessed after this week's forecasted rain