Call 811 Call 811



Explore damage prevention information, local contacts and rules for safe digging in Minnesota.

One Call Centers

811 or


1110 Centre Pointe Curve
Mendota Heights MN 55120


M - F 0700 1700 Nov 1 - Mar 31, M-F 0600 - 1800 Apr 1 - Oct 31

Advance Notice:

48 hours, excluding weekends and holidays
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.

Marks Valid:

14 calendar days
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.