Dozens of trees fell on power lines and vehicles slid off roads in the River Valley area Monday as a result of rain, sleet, snow and wind.

Canton fire Chief Wayne Dube said that as of noon, roads along Canton Lake and sections of Route 140 were covered with water. He said the town’s road crew was working with a backhoe along Staples Hill to try to prevent flooding.

“We’re assessing the situation,” Dube said.

During heavy rains, sections of Canton are often flooded because of Whitney Brook and other streams overflowing their banks.

Ten fire company volunteers were available at the fire station.

In Rumford, police department dispatchers reported dozens of cars off Wyman Hill Road, Route 5, Smithville Crossing, South Rumford Road, Route 132 and Route 2. Additionally, trees fell across power lines, or just across the road, causing crews of Central Maine Power Co. to keep busy.

No injuries had been reported by late Monday afternoon.

Rumford’s deputy fire chief, Keith Bickford, said some basements were flooded, including that of the American Legion Hall at the head of Congress Street, and some small brooks and streams were overflowing. He didn’t expect any major area flooding, however, a belief passed on, he said, by Oxford County Emergency Management Director Scott Parker.

Sgt. Roy Hodson of the Mexico Police Department said no accidents had been reported as of late Monday afternoon. Several culverts, particularly on routes 17 and 120, were flooding over, and a few trees were down, but power lines were not affected. The shoulders of Route 120 were flooding over, but not impeding traffic.

Dixfield police Chief Richard Pickett said Webb River still looked good as of 11 a.m., but water was beginning to pool along the so-called bluff on a section of Route 2. Severy Hill was also experiencing a considerable amount of water runoff, he said.

He added that he has been in constant contact by conference calls with the Oxford County Emergency Management office.

Bethel police Chief Alan Carr said several trees had crossed power lines in his town and water had started to pool in low-lying areas, including Robinson Hill Road in West Bethel. Only one car had slid off the road as of 11:30 a.m.

Sump pumps were flying off the shelves in several River Valley hardware and lumber stores.

In Dixfield, Towle’s Hardware employee Eddie Ellis said about a dozen of the pumps had been sold on Monday, leaving the store with just a few remaining. A couple of wet/dry vacuums were also snapped up by homeowners who could not use sump pumps to remove standing water. He said Saturday was a brisk day for the sale of candles, fuel and batteries.

At Puiia’s Lumber in Mexico, a saleswoman said about 10 sump pumps had been sold by 3 p.m. and several people had asked about generators and plugs for generators.

Aubuchon’s Hardware in Rumford reported similar sales. A saleswoman there said at least a half-dozen sump pumps had been sold by late afternoon, and one of the store’s generators had been rented.

Sump pumps sell for between $75 and $200, depending on size and power.

Gov. John Baldacci declared a state of emergency for the entire state as of 12:01 a.m. Monday.