IOWA CITY, Iowa (AP) — Iowa City officials are monitoring a sinkhole near the sidewalk of a county administration building.
The sinkhole near the Johnson County Administration Building was close to six feet in diameter and more than five feet deep as of Monday afternoon.
The Iowa City Press-Citizen says (http://icp-c.com/145wSco ) heavy rainfall quickly opened up the sinkhole, and officials suspect it has been building beneath the surface for some time.
Bud Stockman, superintendent with the Iowa City streets division, says either the breakage of an active storm sewer pipe or the cap blowing off a discontinued pipe caused the sinkhole.
City officials are trying to determine whether the city or county owns the pipe to determine repair costs.
Information from: Iowa City Press-Citizen, http://www.press-citizen.com/