Stormwater cave-ins occur regularly throughout the City and are typically more prevalent in the wetter months. A cave-in is a depression in the right-of-way that is caused by a failing utility. Each utility department (Water, Wastewater, and Stormwater) encounters cave-ins and repairs them according to severity and urgency. On an average, Stormwater Operations repairs 150 to 175 cave-ins per year which equates to 2 to 4 cave-ins per week. All stormwater cave-ins are repaired by City in-house resources.