OROVILLE, CA - FEBRUARY 7: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), The California Department of Water Resources has suspended flows from the Oroville Dam spillway after a concrete section eroded on the middle section of the spillway February 7, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 7: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), The California Department of Water Resources has suspended flows from the Oroville Dam spillway after a concrete section eroded on the middle section of the spillway February 7, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 7: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), The California Department of Water Resources has suspended flows from the Oroville Dam spillway after a concrete section eroded on the middle section of the spillway February 7, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 7: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), The California Department of Water Resources has suspended flows from the Oroville Dam spillway after a concrete section eroded on the middle section of the spillway February 7, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
The California Department of Water Resources suspended flows from the Oroville Dam emergency spillway after a concrete section eroded on the middle section of the spillway Feb. 7, 2017. (Kelly M. Grow via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 7: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), The California Department of Water Resources has suspended flows from the Oroville Dam spillway after a concrete section eroded on the middle section of the spillway February 7, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 7: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), The California Department of Water Resources has suspended flows from the Oroville Dam spillway after a concrete section eroded on the middle section of the spillway February 7, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 7: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), The California Department of Water Resources has suspended flows from the Oroville Dam spillway after a concrete section eroded on the middle section of the spillway February 7, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 9: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), The California Department of Water Resources stopped the spillway flow on Thursday morning to allow engineers to evaluate the integrity of the structure after water had been released at 20,000 cubic feet per second (cfs) through the night February 9, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 9: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), the Lake Oroville spillway flows late Thursday afternoon as 35,000 cubic feet per second (cfs) of water was released over the damaged spillway February 9, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 11: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), Water flows over the auxiliary spillway at Oroville Dam after the lake level exceeded 901 feet elevation above sea level February 11, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Florence Low/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 11: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), Water flows down the Oroville Dam main spillway at 55,000 cubic feet per second (cfs) February 11, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Florence Low/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 11: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), This aerial view from a California Department of Water Resources drone shows water flowing from the primary spillway at 55,000 cubic feet per second (cfs) and water from Lake Oroville spilling water over the the auxiliary spillway between 5,000 and 10,000 (cfson February 11, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Zack Cunningham/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 11: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), The heavy flows from the 3,000-foot main Oroville dam spillway continues to push debris into the turbid Feather River as the concrete span further eroded and the jagged fracture in its midsection sends water flowing over an adjacent hillside February 11, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Florence Low/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 12: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), Water from the Oroville Dam Auxiliary Spillway at Lake Oroville continues to flow and has eroded the roadway just below the spillway that leads to the spillway boat ramp on February 12, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 12: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), Water from the Oroville Dam Auxiliary Spillway at Lake Oroville continues to flow and has eroded the roadway just below the spillway that leads to the spillway boat ramp February 12, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
US-DAM-WEATHER
A man who works for the California Department of Fish and Wildlife takes a photo with his phone of rushing water as it is released down a spillway at the Oroville Dam in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
US-DAM-WEATHER
A water utility worker looks towards discharging water as it is released down a spillway as an emergency measure at the Oroville Dam in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
US-DAM-WEATHER
Water rushes down a spillway as an emergency measure at the Oroville Dam in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
US-DAM-WEATHER
A water utility worker looks towards discharging water as it is released down a spillway as an emergency measure at the Oroville Dam in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 12: In this handout provided by the California Department of Water Resources (pixel.water.ca.gov), Water from the Oroville Dam Auxiliary Spillway at Lake Oroville continues to flow toward the diversion pool of the Feather River on February 12, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in an emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Kelly M. Grow/ California Department of Water Resources via Getty Images)
US-DAM-WEATHER
Water utility workers work their way down to an eroded hillside to measure depth as rushing water discharges down a spillway as an emergency measure at the Oroville Dam in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
US-DAM-WEATHER
Water rushes down a spillway as an emergency measure at the Oroville Dam in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
US-DAM-WEATHER
A water utility worker peers over an eroded hillside as rushing water discharges down a spillway as an emergency measure at the Oroville Dam in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
US-DAM-WEATHER
Water rushes down a spillway as an emergency measure at the Oroville Dam in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
US-DAM-WEATHER
A worker who declined to give his name works with bags of rocks in preparation for emergency measures taken at the Oroville Dam in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
US-DAM-WEATHER
Bags of rocks are seen in preparation for use in emergency measures at the Oroville Dam in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
US-DAM-WEATHER
A building is seen submerged in flowing water at Riverbend Park as the Oroville Dam releases water down the spillway as an emergency measure in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
US-DAM-WEATHER
A playground is seen submerged in flowing water at Riverbend Park as the Oroville Dam releases water down the spillway in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
The main spillway at Oroville Dam, which was damaged earlier this week, is seen in use from the air on Feb. 13, 2017. (Elijah Nouvelage/Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: Oroville lake, the emergency spillway, and the damaged main spillway, are seen from the air on February 13, 2017 in Oroville, California. (Photo by Elijah Nouvelage/Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: Oroville lake, the emergency spillway, the damaged main spillway, and the earthen Oroville Dam are seen behind the town of Oroville from the air on February 13, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in the emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Elijah Nouvelage/Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
Oroville Lake, the emergency spillway, and the damaged main spillway, are seen from the air on Feb. 13, 2017 in Oroville. (Elijah Nouvelage/Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: Oroville lake, the emergency spillway, and the damaged main spillway, are seen from the air on February 13, 2017 in Oroville, California. The erosion damage seen below the emergency spillway caused officials to issue evacuation orders yesterday to over 188,000 prople in downstream areas. (Photo by Elijah Nouvelage/Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: Oroville lake, the emergency spillway, and the damaged main spillway, are seen from the air on February 13, 2017 in Oroville, California. The erosion damage seen below the emergency spillway caused officials to issue evacuation orders yesterday to over 188,000 people in downstream areas. (Photo by Elijah Nouvelage/Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: Heavy equipment moving rocks for use in an attempt to repair damaged spillway at Lake Oroville Dam in Oroville, Calif., on Feb. 13, 2017. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: High water from Lake Oroville flows in the Feather River alongside railroad line in Oroville, Calif., on Feb. 13, 2017. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: Flood waters inundate a cemetery in Marysville in Marysville, Calif., on Feb. 13, 2017. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: Siblings Zach Soto, 11, left, and Gabby Soto, 13, keep an eye on the Feather River alongside railroad bridge in Oroville, Calif., on Feb. 13, 2017. The children family decide to stay in Oroville as the live of high ground near downtown. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: Heavy equipment moving rocks for use in an attempt to repair damaged spillway at Lake Oroville Dam in Oroville, Calif., on Feb. 13, 2017. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: Flood water inundate a picnic area along the Feather River downstream from at Lake Oroville Dam in Oroville, Calif., on Feb. 13, 2017. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
CHICO, CA - FEBRUARY 13: Oroville evacuees Debra Walker wanders the fairgrounds at the Silver Dollar Fair evacuation shelter in Chico, Calif., on Feb. 13, 2017. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
CHICO, CA - FEBRUARY 13: Evacuees look over donated clothing at the Silver Dollar Fair evacuation shelter in Chico, Calif., on Feb. 13, 2017. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
CHICO, CA - FEBRUARY 13: Oroville evacuees Desiree Garcia and daughter Kay'lee Pearl Garcia 3, look over donated clothing at the Silver Dollar Fair evacuation shelter in Chico, Calif., on Feb. 13, 2017. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: California Department of Fish and Game wardens take in a view of water from Lake Oroville flowing out of the damaged primary spillway at 100,000 cubic feet per second in Oroville, Calif., on Feb. 13, 2017. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: High velocity water from Lake Oroville flows out of the damaged primary spillway at 100,000 cubic feet per second in Oroville, Calif., on Feb. 13, 2017. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
CHICO, CA - FEBRUARY 13: Oroville evacuees Bill O'Kelley, 86, and his wife Doris O'Kelley, 84, sit near a flagpole on the grounds of the Silver Dollar Fair evacuation shelter in Chico, Calif., on Feb. 13, 2017. The pair want to go home. (Photo by Brian van der Brug/Los Angeles Times via Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: Oroville lake, the emergency spillway, and the damaged main spillway are seen from the air on February 13, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in the emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Elijah Nouvelage/Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
OROVILLE, CA - FEBRUARY 13: The town of Oroville is seen downstream from the Oroville Dam from the air on February 13, 2017 in Oroville, California. Almost 200,000 people were ordered to evacuate the northern California town after a hole in the emergency spillway in the Oroville Dam threatened to flood the surrounding area. (Photo by Elijah Nouvelage/Getty Images)
Thousands Evacuated Near Oroville Dam As Spillway Threatens To Fail
Erosion damage below the Oroville Lake emergency spillway is seen from the air on Feb. 13, 2017. (Elijah Nouvelage/Getty Images)
US-DAM-WEATHER
A sign is seen floating in a marsh at the flooded Riverbend Park as the Oroville Dam releases water down the spillway in Oroville, California on February 13, 2017.
Almost 200,000 people were under evacuation orders in northern California Monday after a threat of catastrophic failure at the United States' tallest dam. Officials said the threat had subsided for the moment as water levels at the Oroville Dam, 75 miles (120 kilometers) north of San Francisco, have eased. But people were still being told to stay out of the area.
/ AFP / Josh Edelson (Photo credit should read JOSH EDELSON/AFP/Getty Images)
