One lane of Myrtle Street in Downtown Boise was closed Tuesday afternoon, after a depression formed in the right lane of the street near the Discovery Center.
“What’s out there is a dip in the road, one that we don’t want cars to drive over,” Idaho Transportation Department spokesman Jake Melder said. “We don’t know what caused it.”
ITD officials later determined that the dip was caused by a 3-to-4-foot void under the surface of the asphalt. The affected section is 8 to 14 feet long.
The barely visible dip prompted an emergency closure of the right lane, until crews could determine the cause. That lane is closed between 2nd and 4th streets, according to a press release that ITD sent out around noon.
A contracting crew hired by Idaho Power was boring near where the dip in the pavement occurred. That contractor will fill in the void and pave it over, Melder said.