The Mahaney Dome, an indoor practice facility at the University of Maine, collapsed about 8:30 a.m. Thursday "under the weight of heavy snow and rain," according to Tyson McHatten, senior associate athletic director for the University of Maine.

No injuries were reported.

The facility is used by athletes who play football, soccer, baseball, softball and field hockey, according to the university's website.

"This has happened many other times," McHatten said.

The university already declared it to be "well past its usable life,” and is is evaluating whether the dome can be repaired, and whether repairs would make sense, given that plans are already in the works to replace the dome with a bigger facility. The timing of the new facility is uncertain.

It was at least the fourth time The Mahaney Dome had collapsed.

It was built in 2006 to be used by student-athletes as a practice facility, with a footprint that's about 200 feet by 200 feet, according to the university.

It bears the name of UMaine graduate Larry Mahaney, who donated about $1 million to the project. Mahaney, who died in 2006, was former chairman of the board and CEO of Webber Energy Fuels.

The dome collapse was one of at least a handful of incidents related to the storm system that brought snow, followed by rain, Wednesday night into Thursday.

In Scarborough, the fire department responded to the local Walmart shortly after 10 a.m. when they received a call that the store had closed because of concerns about the weight of the snow on the roof, said Scarborough Deputy Fire Chief John Brennan. A code enforcement officer and engineer inspected the roof and found that "water was draining,  but not as quickly as it should of," Brennan said.

The building has been deemed safe and has been turned back over to the local Walmart manager.

"As an essential store to our community, our goal is to assess any damage from the winter storm and reopen our Scarborough store as quickly and safely as possible," said Ashley Nolan, a senior manager in Walmart's media relations office.

A Sam's Club, also in Scarborough, closed as a precaution after several water leaks were found, Brennan said.

In Topsham, the dome over a sports training facility collapsed, according to a Facebook post on The Dome at Coastal Maine Storm's page.

"Our old Dome came down early this morning due to snow and then rain," according to the post. "Sorry to say that it looks to be irreparable. Working on assessing things now."

The facility was used by local soccer, football, field hockey and lacross teams, according to the page. The page administrator, Brendon Augustine, did not return a phone call seeking comment.

And on I-95 in Etna, a tractor-trailer went off the road about 6 a.m., landing in the median, according to Maine State Police. The driver was not injured and crews plan to remove the vehicle Friday morning. State Police are asking the public not to stop to check on the vehicle or to call dispatch.

The Mahaney Dome in Orono was built in 2006, and collapsed in March 2007, Dec. 2016 and Jan. 2019, according to the Bangor Daily News.

McHatten said the women's soccer team was practiing this morning when the dome began to deflate.

"As soon as they saw it was starting to deflate, they all exited," he said. "There was no chaos."

He said the team has about 25 players and two coaches, but he didn't know exactly how many were inside at the time of the collapse. He said it takes about 20 to 30 minutes for the structure to come down.

The practice facility has astroturf with a dome on top. Teams will now use the field house and batting pavillion for practices. A crew is on scene cleaning up ice and water from the dome and then the extent of the damage will be assessed, he said.

Elsewhere, more than 2,000 Central Maine Power customers are without electricity after the fast-moving snow and rain storm moved through the state.

Most power outages are in York County (1,130), Androscoggin County (858), Cumberland County (274), according to the CMP website.

In northern and eastern Maine, Versant Power reported more than 1,900 outages, nearly all in Penobscot County.

Some school districts that started with delays switched to a full closure early this morning, including in Lewiston and Regional School Unit 38 (Readfield area).

“The ice and mixed precipitation continues to build up,” according to the Lewiston Public Schools Facebook page. “Our city and school staff do a great job but we do not believe a two-hour delay will be sufficient for clean-up and safe travel.”

The storm dropped 4-6 inches of snow in interior Maine before switching to rain, with lesser amounts along the coast, said Derek Schroeter, meteorologist at the National Weather Service in Gray.

While less than an inch of snow was recorded at the Portland Jetport, Raymond got six inches, Sebago recorded seven-and-a-half and Mount Washington got a foot, he said.

One concern for drivers today will be standing water on the roads because storm drains are likely blocked by big snow banks. While temperatures will warm throughout the day, they will drop into the teens or below by nightfall, he said.

“The main message is to try to clear the slush as much as you can,” he said.

In advance of the storm, Gov. Janet Mills closed state offices in Oxford, Franklin, Somerset, Piscataquis, Penobscot, Aroostook, Hancock and Washington counties.

But in York, Cumberland, Androscoggin, Sagadahoc, Kennebec, Lincoln, Knox and Waldo, offices opened at 11 a.m.

The Wednesday night/Thursday morning storm is the third major storm in six days in Maine.

With reporting from the Associated Press.