News List


Do you know before you dig you need to call 811. It’s the law!

Post Date:09/21/2017 9:04 AM

811 is the free Utility Notification Center that is the one-call agency dedicated to safeguarding citizens and construction personnel who work around utilities, as well as safeguarding the underground infrastructure of pipes, mains and lines which bring utilities to your community.

Calling before beginning any excavation prevents damage to underground facilities, service interruptions & bodily injury.

The Utility Notification Center is open 24 hours a day, every day, and accepts calls from contractors, homeowners, or anyone planning to dig in Oregon, Washington, Montana and Hawaii. Calling before you dig ensures that any publicly owned underground facilities will be marked according to the APWA color code so that you can dig safely.

APWA Color Codes:


White: Pre-marking of the out limits of the proposed excavation or marking the centerline and width of proposed lineal installation of buried facilities


Pink: Temporary Survey Markings


Red: Electric power lines, cables or conduit and lighting cables


Yellow: Gas, oil, steam, petroleum, or other hazardous liquid or gaseous materials


Orange: Communications, cable TV, alarm or signal lines, cables or conduits


Blue: Water, irrigation and slurry lines


Purple: Slurry and reclaimed water


Green: Sewers, drainage facilities, or other drain lines


What is 811? is the phone number you call before digging to protect yourself and others from unintentionally hitting underground utility lines. There are millions of miles of buried utilities beneath the surface of the earth that are vital to everyday living like water, electricity and natural gas.

811 is the federally designated call before you dig number that helps homeowners and professionals avoid damaging these vital utilities. When you make the free call to 811 a few days before you dig, you'll help prevent unintended consequences such as injury to you or your family, damage to your property, utility service outages to the entire neighborhood and potential fines and repair costs.


Do I need to call 811?!  Any type of digging requires a call. Building a deck? Planting a tree? Installing a fence or mailbox? 811 is the number you should call before you begin any project.

Call 811 from anywhere in the country a few days prior to digging, and your call will be routed to your local one call center. Tell the operator where you're planning to dig.  Your affected local utility companies will be notified about your intent to dig and will send locators to your dig site to mark the approximate location of buried lines with flags or paint. can I begin my digging project?

Wait for the marks! Utilities will mark their buried lines on your dig site.

Most locate crews will arrive to mark your dig site with paint or flags within a few days and will make sure you know where to avoid digging so you don't hit buried utilities.  Remember the depths of utility lines may vary and there may be multiple utility lines in the same area.  Be sure to check your state laws for specific information. Safely

You called before digging, waited for your lines to be marked, and now it's time to roll up your sleeves and get to work!  Make sure to always dig carefully around the marks, not on them. Some utility lines may be buried at a shallow depth, and an unintended shovel thrust can bring you right back to square one - facing potentially dangerous and/or costly consequences. Don't forget that erosion or root structure growth may shift the locations of your utility lines, so remember to call again each time you are planning a digging job. Safe digging is no accident!

Remember:  Always call 811 before you start any digging project! You can help avoid injury, expense, embarrassment and a very inconvenient day without critical services like electricity, internet or phone.

Note: This information comes directly from the website.


Return to full list >>