pressure off the second emergency spillway. more than one olympic swimming pool of water rushing through every single second, and officials say, it s working, but this image shows how close the dam is to the town of oroville, which tonight is a ghost town. many preparing to spend a second night at shelters, sleeping on cots and among those waiting to return home, 18-year-old april torlone. it was beyond crazy seeing the city change in a matter of minutes. so much concern tonight, and kayna is with us live. kayna, concerns with the first spillway in that crater. then the second spillway next to it over the weekend, and major problems there as well. but tonight, on the eve of more rain coming, some progress to report? reporter: david, officials are not able to lift those evacuation orders despite the fact that those lake levels have actually fallen a little bit, and there is no water going over the second emergency spillway.
be, this nightmare scenario for the folks out there. it would have been last night, and when the water was flowing over the top of the emergency spill way, it was very rapidly eroding below the spill way, and coming back underneath the foundation, the concrete foundation for that spill way. have that erosion continued. and the emergency spill way give way, it s 30 feet high, you would have a 30 foot wall of water rushing down the canyon immediately below the zam is oroville, the town of oroville, the water would have been 100 feet deep within a matter of an hour. and further down the river in marysville and uga city, not as deep, but just as dangerous.