Updated at 7:50 p.m.

Some Lane County residents continued to evacuate from their homes Monday as record rainfall and melting snow led the U.S. Army Corps of Engineers to increase water releases at dams along the Willamette River.

On Sunday, 2.34 inches of rain fell at the Eugene Airport. Andy Bryant, a hydrologist with the National Weather Service in Portland, on Monday said it was the wettest April day on record for the city.

The previous April record at the Eugene Airport of 2.05 inches was set on April 13, 1982.

“It was a really wet day,” Bryant concluded.

That rain, mixed with melting snow, began to fill reservoirs along the Willamette River.

“We are managing flows in a way to protect the downstream public from flood to the extent we are able, and to maintain space in the reservoirs to avoid uncontrollable releases,” said Ross Hiner, Portland District Dam Safety program manager, in a news release Monday from the U.S. Army Corps of Engineers.

“However,” he said, “inflows are so high that we are having to increase our releases to minimize the overall flooding risk.”

In response, the Lane County Sheriff’s Office on Sunday told residents living along two floodplains to evacuate immediately.

The evacuation area, on the “100-year floodplains of Row River and the Coast Fork of the Willamette River between Dorena Reservoir and Mt. Pisgah,” remained the same Monday.

Sgt. Carrie Carver, a spokeswoman for the Lane County Sheriff’s Office, said Monday that “Lane County Sheriff’s deputies are on the ground” in affected areas, helping people evacuate and make arrangements for themselves and livestock.

Two shelters, one in Cottage Grove and one in Creswell, have opened for residents forced to leave their homes.

The Oakridge School District was closed Monday because road closures made it difficult or impossible for many teachers to report to work.

Photos from rain-soaked OR 58, Willamette Hwy. Crews are currently cutting up the trees, crawling through the mud & scaling rock to stabilize the slope. The road is closed at MP 27, about 8 mi W of #Oakridge. Cleanup will continue all day & may continue into the night. #TripCheck pic.twitter.com/SFY8g7ppcD — Oregon DOT (@OregonDOT) April 8, 2019

By Monday morning, multiple flood warning had been issued for the area by the National Weather Service. The coastal fork of the Willamette River at Goshen, the Mohawk River near Springfield, the Long Tom River at Monroe and the Siuslaw River near Mapleton were all under watch.

The National Weather Service also reported that flooding in creeks and rivers in the southern Willamette was already ongoing, including flooding along the Calapooia River in Brownsville and the Row River near Cottage Grove.

Up to 8 inches of standing water caused River Road between Eugene and Junction City to be closed as of 5 p.m., Lane County officials said. Petzold Road at the intersection with Crow Road is also closed because of high water.

Oregon 42S at milepost 10 between Coquille and Bandon is temporarily closed as of 6:30 p.m. due to a landslide, according to the state department of transportation. It’s not yet clear when the roadway will be reopened.

“Today is the last batch of significant rainfall,” Bryant said.

But the hydro-impacts will continue through the middle of the week, according to the U.S. Army Corps of Engineers.

“Water managers expect levels in the Willamette Valley to be at flood stage now through the middle of the week at several gauges,” U.S. Army Corps of Engineers said in its release, “including Goshen and on the main stem of the river at Harrisburg and Albany.

The release added that some forecasts show Salem will approach flood stage on Wednesday.

Closer to Portland, the National Weather Service issued a flood warning on Monday for the Clackamas River near Estacada.

“The Willamette is definitely going to be high up into Multnomah County,” Jeremiah Pyle, a meteorologist at the National Weather Service in Portland said over the phone Monday.

But, he added, “At this point, we aren’t expecting flooding.”