we went along again today to check on aps schools and found more damage. a handful of schools had frozen pipes-- which then burst-- sending water gushing into several buildings. then to make matters worse-- aps wanted to shut off the valves but couldn't because they were frozen. our kayla anderson is here with a look at the damage. when frozen pipes stted to thaw this morning, that's when the chaos really began. those pipes burst-- and crews struggled to get the main valves shut off-- because they were frozen too. it was coming out of the faucets... bursting from the pipes... and even pouring out of the walls... crews spent the day mopping up water that flooded a handful of aps schools overnight and this morning. "as the pipes thaw out, all of a sudden, the leak with appear that we find that wasn't there before." aps crews fought the water-- and the shut off valves-- which froze up too. "we've had some frozen valves, city valves, to the school at the meters that are frozen." crews had to break those valves lose-- so they could shut off water to the schools. from inside-- to outside-- crews tackled problems around the campuses. "like risers and sprinklers, as well as backfill protectors that are frozen." schools now added to the list of damage-- caused by this winter blast-- include john adams, highland, rio grande and james monroe. crews will be keeping a close watch on the situation all night-- and into the weekend. the goal--- to have every classroom open for students to return on monday. "they're doing inspections and walking through the school all day, as well as doing cleanup and everything else. they're doing a watch through for any pipes that are thawing out. and then as soon as they discover them, we're shutting the water off and then making the repairs." aps says the cost of all the repairs and cleanup shouldn't be too much compared to the half-million dollar cost when this happened in december. also, there hasn't been any mold concern or wall damage and very little equipment damage