MANOA, Hawaii -- Officials at the University of Hawaii at Manoa said nearly three dozen buildings were still without power Monday in the aftermath of weekend flooding.

There will be no classes Tuesday and a decision has not yet been made then when classes will resume.

Outside buildings, crews are piling up debris, looking for anything that can be salvaged, and sorting through what was brand new computer equipment but is now just muddy trash.

Inside the library, the destruction was widespread. Entire walls were ripped away, ceilings were collapsed, and heavy furniture and equipment were tossed around like it was nothing.

Rare, historic maps, documents, and photographs were buried in muddy water. Librarians are working as fast as they can to try to save as much as they can. Rare aerial photographs have been washed and are hanging to dry. Librarians are also working to save rare Japanese maps that survived World War II.

Noelani Elementary School Hit Hard

Along flooded Manoa Stream, cars were tossed like toys into trees, and work crews were busy Monday pulling debris from the stream.

Noelani Elementary School in Manoa was among the buildings hardest hit by flood damage. Most of that neighborhood spent Monday mopping up.

A trail of debris marked how high the water ran. Several classrooms were flooded.

Teachers and custodians spent the day cleaning up the mess.

Noelani plans to reopen Wednesday, unless health officials step in because of concerns over bacteria carried by the floodwaters.

"I think, in talking to the Department of Health, the primary concern is making sure the grounds are dry," said Noelani principal Fred Yoshinaga. "Because when ground is dry, it means the bacteria is dead."

The school will probably remain a voting site unless elections officials say otherwise.

Grandmother Rescued

The surge of water from Manoa Stream uprooted a fence between the school and the property of Shigemoto family, of Manoa.

Elaine Shigemoto, 86, was in the lower end of the home when the water came into the house. She said she hung from the rafters waiting for someone to rescue her.

"It just came in so fast it broke the windows, so she had no chance to even go upstairs," said Brian Shigemoto.

"The first thing she did was try to get to highest part. She climbed on a sofa that was floating here," said Sherra Shigemoto, Elaine's granddaughter. "Then she saw her dog floating, so she put the dog on floating sofa and she held on thinking someone would come and get her."

A firefighter had to swim into the house to rescue the woman and the dog.

Elaine Shigemoto was being treated at an area hospital Monday.

The Shigemotos said this is the third time their home has been flooded as a result of Manoa Stream spilling over.

A Department of Land and Natural Resources spokesman said Monday the Army Corps of Engineers is conducting a study to determine how best to address the issue of Manoa Stream's frequent floods, but the study isn't due for completion until 2007.