Call 811 Call 811



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

One Call Centers

811 or
1-800-282-8555 (DE) or 1-800-441-8555 (ESMD)


PO Box 600
Greenwood DE 19950


M -F 0700 - 1700 Emergency Ticket: 24/7

Advance Notice:

2 Business Days
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:

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