Courtney Sacco I AnnArbor.com
Initially, officials told AnnArbor.com there were 100 students displaced based on information they had at the time of the incident.
University of Michigan's North Quad flood
See the coverage from the dorm flood that displaced 32 students
- University of Michigan's North Quad up and running 5 days after flood
- WITH VIDEO: Students' property destroyed in North Quad flood not covered by U-M insurance
- University of Michigan students on North Quad flooding: 'It looked like it was raining'
- STORIFY: North Quad flood: University of Michigan students react on social media
- Nearly 100 students displaced by flooding at University of Michigan's North Quad
- Burst water pipe causes flooding at North Quad on University of Michigan campus
An estimated 2,600 gallons of water flowed from the broken pipe for 33 minutes on the morning of April 28, flooding parts of the first four floors of the 10-story building, which includes dorm rooms and academic areas.
Water spilled from the pipe, located in a fourth-floor stairwell, cascading down the stairs, bursting through doorways and seeping through walls and ceilings.
Most of the damage has been fixed and students moved back in on Tuesday, the same day classes resumed to their normal North Quad locations and schedules.
North Quad's first two floors include classrooms, technology-equipped study spaces and a computer lab. The building is the home of the School of Information. From the third floor up are residence halls. North Quad opened in 2010 after a $175 million construction.
Courtney Sacco I AnnArbor.com
Director of communications for U-M housing Peter Logan said the university does not yet know the estimated cost of damages. He said most of the damages were considered 'surface,' or things that easily can be replaced or cleaned, such as paint and carpeting. The majority of the building's considerable technology, which is valued in the seven-figures, was unharmed.
In areas impacted by water, crews cleaned floors and carpets and in some cases moved baseboard molding. In certain areas, they drilled holes in walls to extract water and help the interior of the wall dry out. Crews used vacuums with strong suction, fans and dehumidifiers to extract the moisture and U-M officials are monitoring for mold caused by the water.
Considering the building's computer lab was flooded, as were classrooms with electronic podiums and other equipment, Logan said he was surprised by the lack of substantive damage. He said just one piece of costly equipment was damaged in the flood —a media scape table that allows several computers to share one screen.
Courtney Sacco I AnnArbor.com
Logan said water flowed at a rate of 80 gallons-per-minute for 33 minutes because U-M police had to respond to the scene and canvas North Quad so they could determine there was no fire. The burst pipe set off an alarm that normally signals sprinkler activation, which takes place when there is a potential fire.
"We cannot turn off the water suppression supply until it has been completely determined there is no fire," Logan said. "While water is continuing to rush, we're making sure there is no fire. North Quad is not a small building, so this takes time."
Kellie Woodhouse covers higher education for AnnArbor.com. Reach her at kelliewoodhouse@annarbor.com or 734-623-4602 and follow her on twitter.