Hudson River-Black River Regulating District Executive Director Michael Clark said this morning the lake is at its highest level for the calendar year; the result of late snow melt and recent rainfall.
According to the U.S. Geological Survey's website, the lake elevation was measured at 770.4 feet as of 6:30 a.m. The spillway crest of the reservoir is 771 feet.
"The elevations are under control, and it appears the levels will go the other way later this week," he said. "There is a constant release of water, so as the Hudson River flow releases, we will be able to release more and more from the lake."
Area residents reported that their floating docks and some shoreline roads were under water Sunday on the Northville side of the lake.
Clark said it's not unusual for the docks to become submerged, as the lake levels are constantly shifting, and the dock lines are also adjusted frequently to accommodate them.
Meanwhile, the weather forecast threatens rain the rest of the week, including a possible thunderstorm Wednesday.
The most recent news release on the regulating district's website said both the Great Sacandaga Lake and the Indian Lake reservoirs reduced peak Hudson River flow by 47 percent on April 15; reducing the level of flooding in the Hudson River from the town of Hadley to Fort Edward.
Capital region counties pay the lake district annual taxes for flood protection benefits derived by operations of the Great Sacandaga Lake.
The USGS site says the maximum elevation at the Great Sacandaga Lake was recorded at 774.47 feet on May 1, 2011.
-- Staff report