12/11/2013 UPDATE:

MADISON, Wis. (AP) _ The Wisconsin Department of Natural Resources' headquarters in Madison is back open after a flood sent workers home Tuesday afternoon and shuttered the building for half a day.

The state Department of Administration said Wednesday the DNR has returned to normal operations and cleanup from the flood is nearly complete. The DOA reports that the building is dry, all pipes have pressure, affected work stations have been cleaned, and the heating system is working.

A cost estimate for how much damage was caused won't be known for weeks, but DOA says work stations and computer equipment suffered only minor damage.

The DOA statement says the flood appears to have been caused by a system failure that resulted in cold air being pulled in, causing the pipes to freeze and burst.



A State Natural Resources Building suffered severe water damage Tuesday morning.

The damage happened at the GEF 2 building at 101 S Webster St. in Madison.

DNR officials believe a heating unit broke around 6:15 a.m., causing flooding on the 7th floor. Water trickled down to the floors below.

The heating coils may have burst due to the cold weather.

Employees are allowed to work from home today as crews assess the damage.