Tuttle Creek Lake reached an elevation of 1,128 feet, now the second-highest level in its history.

The highest was 1,136, which it reached in 1993, when officials opened the emergency spillway gates, flooding parts of Manhattan.

The lake’s normal elevation is 1,075. The current level is more than 53 feet above that.

Hitting the 1,128 mark also means the lake has reached at Phase III of the flood control pool, which changes the point at which U.S. Corps of Engineers officials can increase outflows through the “tubes,” which how the Corps normally releases water.

The Corps uses the streamflow at Waverly, Missouri, which is in a low-lying area, to determine whether there is room in the channel to release more water from upstream lakes including Tuttle Creek.

Streamflow on Friday afternoon was 216,000 cubic feet per second according to the U.S. Geologic Survey. The Corps has to wait until the streamflow gets down to 160,000 cfs to release water from the tubes.

Officials said Friday they still have no plans to release water using the emergency spillway gates.