March 2024 Vol. 79 No. 3

Features

Damage prevention and safety: Turning awareness into action

(UI) — Surveys and studies reveal that professional excavators/contractors are highly aware of Common Ground Alliance’s (CGA) 811 initiative that requires they (as well as landscapers and homeowners) contact their state’s OneCall Center so underground utility lines are identified and marked before breaking ground.

However, awareness is not enough.  

Damage from hitting underground utilities during excavation – service interruption, property harm, costly fines and repairs, and personal injury – continues to happen, at an annual cost of $30 billion in the U.S. CGA also reports that more than half of these reported damages were caused by professional contractors/excavators and the most-common root cause was “no notification made to 811. 

Clearly, contractors/excavators must use 811 – before beginning every project that involves excavation or directional drilling – to protect yourselves, crews and communities. 

It’s as simple as calling 8-1-1, from within the state the digging is to occur, within the required timeframe. You answer basic questions about the location and details of the digging project, then get a ticket number and instructions. 

Even more convenient, contractors/excavators can use the state’s increasingly popular online systems. These allow you to submit a locate request and get a ticket, any time, any place, via Internet connection. Once signed up and logged in, many also provide access to ticket search, update and track, positive response, mobile app and other functions. 

To facilitate and support your consistent and effective use of 811, the following directory provides links to each state’s 811 website(s), for comprehensive information about safe-digging regulations, processes and guidelines. It also shows links to the state’s “Online System,” for real-time access to locate requests and more.  

In addition, the directory shows each state’s specific law or practice, regarding the minimum amount of time to notify 811 before you intend to dig (“Advance Notice”) and how long you have to complete the requested excavation (“Marks Valid”), as available. 

Call or Click 8-1-1

Directory is based on CGA’s “811-in-your-state 

Alabama 

Alabama 811 

Online System 

Advance Notice: 2 working days 

Marks Valid: 20 working days 

Alaska 

Alaska 811  

Online System 

Advance Notice: 2 business days; 10 business days in remote locations 

Arizona  

Arizona 811 

Online System 

Advance Notice: 2 working days 

Marks Valid: 15 working days 

Arkansas 

Arkansas 811 

Online System 

Advance Notice: 2 working days 

Marks Valid: 20 working days from date of issue 

California 

Advance Notice: 2 working days 

Marks Valid: 28 days 

Underground Service Alert (Northern & Central Calif.) 

Online System 

Dig Alert (Southern Calif.) 

Online System 

Colorado 

Colorado 811  

Online System 

Advance Notice: 2 days 

Marks Valid: 30 days 

Connecticut 

Call Before You Dig 

Online System 

Advance Notice: 2 working days 

Delaware 

Miss Utility of Delmarva 

Online System 

Advance Notice: 2 business days 

Marks Valid: 10 business days 

Florida 

Sunshine 811 

Online System 

Advance Notice: 2 business days 

Marks Valid: 30 calendar days  

Georgia 

Georgia 811 

Online System 

Advance Notice: 3 days 

Marks Valid: 30 calendar days 

Hawaii 

Hawaii One Call 

Online System 

Advance Notice: 5 working days 

Marks Valid: 28 calendar days 

Idaho 

Advance Notice: 2 business days 

Marks Valid: 4 weeks 

DIGLINE (state-wide, except five counties shown below) 

Online System 

North Idaho 811 (Bonner, Boundary, Shoshone & Benewah Counties) 

Online System 

 

Kootenai County One Call 

Online System 

Illinois 

Advance Notice: 2 working days (48 hours) 

Marks Valid: Life of the ticket or until marks become undistinguishable  

Julie (statewide) 

Online System 

811 Chicago (metro area)  

Online System 

Indiana 

Indiana 811 

Online System 

Advance Notice: 2 working days 

Marks Valid: 20 calendar days 

Iowa 

Iowa One Call 

Online System 

Advance Notice: 2 working days 

Marks Valid: 20 calendar days from notice date 

Kansas 

Kansas 811 

Online System 

Advance Notice: 2 business days 

Marks Valid: 15 calendar days 

Kentucky 

Kentucky 811 

Online System 

Advance Notice: 2 working days 

Marks Valid: 21 days, as long as marks are visible  

Louisiana 

Louisiana 811  

Online System 

Advance Notice: 2 business days 

Marks Valid: 20 calendar days (as long as visible) 

Maine 

Dig Safe 

Online System 

Advance Notice: 3 business days 

Marks Valid: 60 days 

Maryland 

Miss Utility 

Online System 

Advance Notice: 2 business days 

Marks Valid: 12 business days 

Massachusetts 

Dig Safe 

Online System  

Advance Notice: 3 business days 

Marks Valid: 30 days 

Michigan 

Miss Dig 811 

Online System 

Advance Notice: 72 hours 

Marks Valid: 21 days 

Minnesota 

Gopher State One Call 

Online System 

Advance Notice: 48 hours 

Marks Valid: 14 calendar days 

Mississippi 

Mississippi 811 

Online System 

Advance Notice: 3 working days 

Marks Valid: 14 calendar days 

Missouri 

Missouri 811 

Online System 

Advance Notice: 3 working days 

Marks Valid: As long as visible 

Montana 

Montana 811 

Online System 

Advance Notice: 2 business days 

Marks Valid: 30 days 

Nebraska 

Nebraska 811 

Online System  

Advance Notice: 2 business days 

Marks Valid: 17 business days 

Nevada 

Underground Service Alert 

Online System 

Advance Notice: 2 working days 

Marks Valid: 28 calendar days 

New Hampshire 

Dig Safe 

Online System 

Advance Notice: 3 business days 

Marks Valid: 30 days 

New Jersey 

New Jersey One Call 

Online System 

Advance Notice: 3 business days 

Marks Valid: 45 business days 

New Mexico 

NM 811 

Online System 

Advance Notice: 2 working days 

Marks Valid: 15 working days 

New York 

Advance Notice: 2 working days 

Marks Valid: 10 working days 

UDig NY (state-wide, except NYC and Long Island) 

Online System 

New York 811 (NYC and Long Island 

Online System 

North Carolina 

NC 811 

Online System 

Advance Notice: 3-12 working days 

Marks Valid: 15 working days 

North Dakota 

North Dakota 811 

Online System 

Advance Notice: 48 hours 

Marks Valid: 21 calendar days 

Ohio 

Ohio 811 

Online System 

Advance Notice: 48 hours 

Marks Valid: As long as visible 

Oklahoma 

OKIE 811 

Online System 

Advance Notice: 48 hours 

Marks Valid: 14 business days and depending on visibility 

Oregon 

Oregon 811 Utility Notification Center 

Online System 

Advance Notice: 2 days 

Marks Valid: 45 days (proposal made to reduce to 30 days) 

Pennsylvania 

Pennsylvania 811 

Online System 

Advance Notice: 3-10 business days (construction phase); 10-90 business days (design phase) 

Marks Valid: As long as equipment is kept onsite 

Rhode Island 

Dig Safe 

Online System 

Advance Notice: 72 hours excluding weekends and holidays 

Marks Valid: Life of excavation 

South Carolina 

South Carolina 811 

Online System 

Advance Notice: 3 working days 

Marks Valid: 15 working days 

South Dakota 

South Dakota 811 

Online System 

Advance Notice: 48 hours 

Marks Valid: 21 working days, providing marks are visible 

Tennessee 

Tennessee 811 

Online System 

Advance Notice: 3 working days 

Marks Valid: 15 calendar days 

Texas 

Texas 811 

Online System 

Advance Notice: 2 working days 

Marks Valid: 14 days 

Utah 

Blue Stakes of Utah 811 

Online System 

Advance Notice: 2 business days/48 hours 

Marks Valid: 14 calendar days 

Vermont 

Dig Safe 

Online System 

Advance Notice: 48 hours 

Marks Valid: 30 days 

Virginia 

VA 811 

Online System 

Advance Notice: 48 hours 

Marks Valid: 15 working days 

Washington 

Washington 811 

Online System 

Advance Notice: 2 business days 

Marks Valid: 45 days 

Washington, D.C. 

Miss Utility 811  

Online System 

Advance Notice: 2 business days 

Marks Valid: 15 business days 

West Virginia 

West Virginia 811 

Online System 

Advance Notice: 2 days 

Marks Valid: 10 days, while visible 

Wisconsin 

Diggers Hotline 

Online System 

Advance Notice: 3 working days 

Marks Valid: Length of project, if maintained 

Wyoming 

Wyoming 811 

Online System 

Advance Notice: 2 business days 

Marks Valid: 14 business days 


CANADA 

In Canada, the One Call System applies, but the 8-1-1- phone number does not. Instead, use the specific phone number for each province/state, if provided, below. 

Alberta 

(800) 2423447 

Utility Safety Partners 

Online System    

Advance Notice: 3 working days 

Marks Valid: 30 days 

British Columbia 

(800) 474-6886 

BC One Call 

Online System 

Advance Notice: 3 working days 

Marks Valid: 30 days 

Manitoba 

Click Before You Dig MB 

Online System 

Advance Notice: 3 working days 

Marks Valid: 30 days 

New Brunswick 

(866) 344-5463 

Info Excavation 

Online System 

Advance Notice: 3 working days 

Marks Valid: End date of work on the request 

Newfoundland 

(800) 663-9228 

Info Excavation 

Online System 

Advance Notice: 3 working days 

Marks Valid: End date of work on the request 

Nova Scotia 

Info Excavation 

Online System 

Advance Notice: 3 working days 

Marks Valid: End date of work on the request 

Ontario 

(800) 400-2255 

Ontario One Call 

Online System 

Advance Notice: 5 business days 

Marks Valid: 60 days or longer, as specified by infrastructure owner 

Prince Edward Island 

(866) 344-5463 

Info Excavation 

Online System 

Advance Notice: 3 working days 

Marks Valid: End date of work on the request 

Quebec 

(800) 663-9228 

Info Excavation 

Online System 

Advance Notice: 3 working days 

Marks Valid: End date of work on the request 

Sasketchewan 

(866) 828-4888 

Sask 1st Call 

Online System 

Advance Notice: 3 business days 

Marks Valid: 30 calendar days 

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