The Process

Notify Missouri 811

Request a utility locate online or by phone at 811 at least three full working days prior to excavation. 

Utilities Are Notified

Missouri 811 will notify any public utility companies within your dig site while you wait the required time.

Utilities Mark Their Lines

The utilities will locate and mark their lines, or provide an all clear notification.

Confirm the Marks

You confirm the marks and utility statuses.

Dig with Care!


For digging projects big or small, you need to contact Missouri 811 at least 3 working days before you start digging.

Notify Missouri 811

This date does not count as a “working day.”

Waiting Period

Two working days waiting period for locates.

Dig With Care

Digging may begin if all utilities have responded. If all utilities have not responded, you may submit a “No Response” ticket.

What Information is Required to Place a Locate Request?


Who the work is being done for – first and last name of the property owner

Your contact information

On-site contact information


Expected date of the project


Address of the property – the county, city and nearest cross street to the dig site

Where on the property the underground utilities need to be located (example: front, rear, or sides of the property)

max depth

Estimated depth needed to dig

Type of work you will be doing

Fence, pool, landscaping, etc.


Type of equipment you will be using

Excavating by hand or by machine

Will there be trenchless excavation or explosives involved?

Things to Remember


White line the dig site area to define your dig site. This will insure that the entire area of excavation is located properly.

Provide an accurate description of the dig site when placing your locate request.

Hand dig within the approximate location. There is a 2-foot hand dig zone on either side of the marked buried facility. Hand digging will allow you to determine the exact location and expose the facility. This is the safest way to make sure that you don’t damage the underground facility.

When hand digging, keep the blade of the shovel parallel to the marks.

Protect and support the facilities when exposed and backfill carefully to prevent damage to facilities and their coatings, and to provide support beneath to prevent the collapse or sagging of the facilities.

Call in a “Renewal Ticket” if the marks become unclear at your dig site. Work disturbance and weather can cause the markings to become obliterated, obscured, missing or incorrect. Never go off your memory of where the marks were. Be safe. Contact Missouri 811 for a “Renewal Ticket.”

Contact Missouri 811 to submit a “No Response” ticket if a utility has not responded to a locate request.


Never allow anyone to dig on your property without contacting Missouri 811 first.

Do not work off someone else’s marks or ticket. Each excavator is required to place their own locate request. You cannot legally work from someone else’s request.

Always confirm the utility response by checking the status of the utility response before beginning excavation.

Don’t assume that facilities always run straight between markers.

Never assume the depth of a facility or that the depth will stay the same.

Don’t assume that an unmarked line is abandoned.

Don’t take for granted the exposed utility line is the only one there.

Do not use picks, mattocks, pry bars, or any other sharp tools when digging within the tolerance zone.

Do not remove the flags or paint marks until you are finished with your work.