Bob Donaldson, Post-Gazette American Red Cross volunteers Dan Lenz, above, and Dawna Bates, left, hand out cleanup kits on Dewey Street in Etna yesterday. Click photo for larger image.

Some windows of the Carnegie Science Center were boarded up, a section of the facade tattered. And the hallmark "E-Motion" inverted cone atop the building was stripped of its fabric and looked like a collection of sticks.

The center still bore the signs of Thursday's ravaging storms yesterday, but it reopened after a two-day shutdown to a slightly bigger than usual crowd of visitors, many of whom came to show their support for the North Side attraction

Spokesman Mike Marcus said staff members decided to make available several programming opportunities related to the science of thunderstorms, tornadoes and other extreme weather.

"We see learning opportunities in what happened to us," said Mr. Marcus.

Learning of a more experiential type was happening elsewhere in the region yesterday, as the cleanup continued.

Duquesne Light Co. crews continued to work to restore power to the company's customers. Spokesman Joseph H. Vallarian said about 400 customers in "scattered" sites throughout its service area remained without service at 8 last night. Outages initially affected 90,000 customers on Thursday.

Mr. Vallarian said the service area covers most of Allegheny County and about half of Beaver County.

About 100 Allegheny Power customers remained without power late yesterday afternoon, the bulk of them in Clairton and in New Florence, Westmoreland County.

Mayor Bob Campagna of Export, Westmoreland County, said he will file a state of emergency declaration for the borough today to secure aid for residents without flood insurance. Meanwhile, the community is accepting donations for flood victims through a special account at First Commonwealth Bank in Export.

On the third day of cleanup in Export, relief workers hosed downtown streets and the main parking lots of a substantial mud buildup.

Emergency garbage pickup for borough residents starts at 7 a.m. today. Regular garbage pickup for the community will resume tomorrow.

"Our hats go off to the people for the amount of fortitude they have shown," the mayor said. "Once again, our patience has been tested. We've been through this before many times, but not this bad. This here was probably one of the worse."

Murrysville residents whose homes or property were damaged by the weather can complete a Pennsylvania Emergency Management Agency Physical Disaster Survey at the Municipal Building today, tomorrow and Wednesday from 9 a.m. to noon and 1 to 4 p.m.

Residents unable to travel to the Municipal Building can call 724-327-2100, ext. 130. The form is also available on the municipal Web site www.murrysville.com.

Most of the electricity has been restored, but a few isolated areas are still in the dark, according to Mayor Joyce Somers.

"Right now you'll see a lot of debris sitting in people's yards," Ms. Somers said. "People are cleaning up their basements and we're making arrangements to get big dumpsters brought out here."

Plum's Holiday Park Sewage Treatment plant on Route 286, which serves about 5,000 customers, sustained severe damage during from flooding; however, a new $9 million facility that's scheduled to go on line in about three weeks suffered only minor damage.

Fox Chapel Mayor Harry W. McLaughlin Jr. said the cleanup from the storm has been trying.

"All of us have gone through a lot in the last four days," he said.