It’s free. It’s fast.
It’s the law.

Excavator Single Address Request Excavator Web Ticket Entry Residential Request Utility Response Check Status

Regardless of your project’s size, you are legally required to contact Colorado 811 at least three
business days before you dig. Fortunately, our free and efficient service makes it easy to
request the marking (locating) of public utility lines.

Before you contact us, make sure you have basic project details ready to share, including XX and YY.

Call 811 or submit a ticket online. We will notify utility companies to mark underground utility lines near your job site.

Before digging, you must check your ticket’s status. A “Positive Response” status confirms utilities are accurately marked and you can proceed with digging.

Dig with care, especially within the “tolerance zone”, which indicates you’re within 18 inches of marked utilities.

After your project is complete, close out your locate request by calling 811 or log in to our online portal.