SIOUX CITY, Iowa (AP) – The break of a large water line in Sioux City caused a residential street to collapse and left more than a dozen homes without water service. The Sioux City Journal reports the 16-inch water main broke Sunday, causing a block of Macomb Avenue to collapse. Water service also was cut off to 15 homes, and nine customers lost gas service until a temporary line could be installed. Water service was restored Tuesday morning to all but one home.

Such breaks can happen in the winter, when temperature changes cause the ground to swell and contract. That squeezes and shifts underground pipes, which over time can rupture. City crews were hampered in their response by temperatures near zero.