The Nevada Department of Transportation has been carefully monitoring Washoe Lake elevations and today they reported that the water has receded about a foot. 

Since February NDOT along with the federal watermaster and local land owners have been monitoring the lake and making plans to release some of the water out through Steamboat Creek. The goal was to keep I-580 from flooding there in the valley and so far they have succeeded. 

The water surface elevation was more than 5,030 feet in late March and as of the end of June it had dropped to 5,029 feet. NDOT credits the controlled water release, a slow snow melt, and evaporation thanks to hot summer days. 

I-580's lowest point is at 5,033-foot elevation so NDOT says the lake is still "well below" where flooding could become a concern.