A series of water main breaks in Denver overnight kept repair crews busy this morning and posed potential traffic problems for motorists.
At least three breaks reportedly occurred between midnight and 1 a.m .
Early indicators point to a possible computer problem, which may have sent too much pressure through water lines, breaking the valve and causing subsequent water main failures around town.
Meanwhile, cleanup and repair costs resulting from a massive water main break Friday at Denver Public Schools headquarters could reach $1 million and keep the building closed until at least Thursday. The break in a high-pressure water main filled the building's sub-basement with four feet of mud in spots.
According to officials, shifting earth most likely caused the 6-inch underground steel water main to sever.
About 200 to 300 employees work in the seven-story building. Some were to report to work today in other locations, while others were getting an unplanned day off.
School operations were not expected to be affected, a district spokesman said.