4 dams in California are spilling over. (Large Gifs)

TIme Lapse of the Oroville Dam
​Working to relieve pressure on the dam, operators continued to blast water down the battered main spillway, which developed a pothole in the past week that has expanded to a cavernous 300-foot fissure. The main spillway was releasing 55,000 cfs, meaning a total of 60,000 to 65,000 cfs was pouring out of the dam.

Oroville Dam emergency spillway (left) and main spillway (right)

Oroville Dam emergency spillway.

This week all eyes have been on the Oroville Dam, but now attention is shifting south to Morgan Hill and Anderson Reservoir.

Anderson Reservoir is rapidly filling up and over its recommended capacity. The reservoir is only supposed to be at 68 percent capacity, but it is at 100.04% capacity.

For the first time in almost two decades, water was released Wednesday from the topmost gates of the dam impounding Lake Shasta, California's largest reservoir, marking another milestone in what is shaping up to be the state's wettest year on record.

With the reservoir at 135% of its historical average for this time of year and nearly 93% of its capacity, dam engineers were releasing billions of gallons of water to make room for incoming flows from the Cascade Range and distant Sierra Nevada foothills, according to the bureau. (http://lat.ms/2lhf0Jr)

The Morning Glory Spillway, called the “Glory Hole” by locals, spilled over for the first time in 10 years this week. The overflow is a result of a month of recent rains filling the river in formerly drought-stricken California. Credit: Evan Kilkus via Storyful

The Morning Glory exit spillway.

Drone captures extent of flooding in the Yolo Bypass and Fremont weirs

Drone captures extent of flooding in the Yolo Bypass and Fremont weirs

Drone captures extent of flooding in the Yolo Bypass and Fremont weirs