Oklahoma 811: Call Before You Dig Rules and Locate Colors

Before any shovel, auger, or drill goes into the ground in Oklahoma, the law requires you to have underground utilities located. That free service is Oklahoma 811, and skipping it is one of the most expensive mistakes a homeowner or contractor can make. This guide walks through exactly how 811 works in Oklahoma, how long you have to wait, what the paint and flag colors mean, and where a professional boring contractor fits in. Whether you are planting a fence or planning a 500-foot bore, the rules are the same: locate first, dig second.

What is 811 in Oklahoma?

811 is the national call-before-you-dig number, and in Oklahoma the system is run by Oklahoma One-Call System, commonly known as Okie 811. When you submit a locate request, every utility with buried infrastructure in your work area is notified and sends a locator to mark where their lines run. This includes gas, electric, water, sewer, telecom, and fiber. The service is free, and using it is not optional; it is required by the Oklahoma Underground Facilities Damage Prevention Act.

You can submit a request by phone at 811 or online through the official portal at callokie.com. The point of the system is simple: nobody knows where every buried line runs by looking at the surface, so the people who own those lines come out and mark them so you do not hit one.

How long do you have to wait after calling 811?

Timing trips up a lot of first-time diggers. The Oklahoma rule is a minimum of two full working days notice before excavation begins. If you call on a Monday, your earliest legal dig day is generally Thursday, and weekends and state holidays do not count toward the two days.

1. Submit your request at least two working days before you plan to dig.
2. Wait for all utilities to respond and mark their lines or confirm no conflict.
3. Verify the markings against the list of notified utilities before any ground entry.
4. Dig within the valid window, and re-request if the job runs long or marks fade.

If a utility has not marked by your start date, do not assume the area is clear. Confirm every expected facility has responded first. A licensed contractor handles this step as a matter of routine on every job.

What do the 811 paint and flag colors mean?

Once locators finish, your site will have paint lines and flags in standardized colors. Knowing what each color means tells you exactly what is buried where:

The most dangerous lines to strike are red (electric) and yellow (gas). A nicked gas line can evacuate a neighborhood; a struck electric line can be fatal. This is exactly why boring is so valuable around existing utilities: a steerable bore can be planned to pass cleanly between marked lines instead of trenching blindly across them.

Does a contractor or the homeowner call 811?

A common question is who is supposed to make the call. The answer is the excavator, meaning whoever is actually disturbing the ground. When you hire Trinity Boring Solutions or any legitimate Oklahoma contractor, the 811 locate is built into our process and we will not start without it. If you are doing the work yourself, the responsibility is yours.

Hiring a professional does more than offload a phone call. We read the marks correctly, plan the bore path around them, hand-expose lines where required, and document the finished work. If you want to understand how we map a safe route around marked utilities, see our bore path planning guide.

What does 811 not cover?

This is the gap that catches people off guard. The 811 system covers the utility-owned portion of each service, generally up to the meter. Anything you or a previous owner installed beyond that point is a private line, and 811 locators will not mark it. Common private lines include:

• Gas lines to a detached garage, shop, pool heater, or grill
• Electric runs to a detached structure, well pump, or yard lighting
• Water lines to a barn, irrigation system, or outbuilding
• Septic tanks, lateral fields, and the lines feeding them
• Sprinkler and irrigation piping

Because boring and excavation both put these private lines at risk, a careful contractor either arranges a private locate, reviews any as-builts you have, or hand-digs to expose them before boring. It is one more reason the cheapest crew is not always the safest one.

What happens if you dig without calling 811?

Skipping the call is never worth it. Beyond the obvious safety danger of striking a live gas or electric line, Oklahoma law makes the excavator liable for the damage. That can mean paying to repair the line, covering the cost of the outage to everyone affected, and fines for violating the Underground Facilities Damage Prevention Act.

For contractors, a damage record also follows you and raises your insurance and bonding costs. The math is simple: a free locate request protects you from a five or six figure liability. Every professional bore we run starts with confirmed 811 locates for exactly this reason, and we treat the marks as non-negotiable.

What should you do if you hit a utility line?

Even with a perfect locate, accidents happen, and knowing how to react matters. The right response depends on what you hit, but the first move is always the same: stop and protect people.

• Gas line – stop, leave the area on foot upwind, no phones or engines near the leak, call 911 and the gas company. Do not try to stop the flow yourself.
• Electric line – assume it is energized, keep everyone and equipment clear, and call the power company and 911.
• Water or sewer – stop work, contain the flow if safe, and notify the utility so the break can be shut off and repaired.
• Communications or fiber – report it; even a nicked line can knock out service for an area and must be repaired by the owner.

Report every contact with a buried line, even a scrape, to the utility owner. A small nick can fail weeks later. Professional crews carry the right contacts and procedures, which is one more reason hiring a licensed contractor lowers your overall risk on any underground job.

Common 811 myths in Oklahoma

A lot of utility strikes come from honest misunderstandings rather than carelessness. Here are the myths we hear most often, and the reality behind each:

• Myth: small jobs do not need 811. Fence posts and tree holes hit lines every year. Any ground disturbance requires a locate.
• Myth: the marks last all season. Locate marks expire and fade. A long project needs a fresh request.
• Myth: 811 finds everything. 811 marks public lines to the meter, not the private lines on your property.
• Myth: my neighbor just had locates done. A locate is specific to a request and area; it does not cover your separate job.
• Myth: I know where my lines are. Buried lines move, settle, and are not always where records or memory say.

Treat the locate as a fresh, required step on every job. It is the single cheapest insurance policy in underground construction, and it is free.

How 811 fits into a directional boring job

For Trinity Boring Solutions, 811 is step one of the job, not an afterthought. Here is how it fits the overall workflow on a typical bore:

1. Locate request – we submit to Okie 811 and wait the required notice period.
2. Verify marks – we confirm every notified utility has responded and marked.
3. Plan the path – we route the bore to clear marked lines with safe separation.
4. Hand-expose as needed – we pothole to visually confirm critical crossings.
5. Bore and document – we drill, pull the product line, and record the as-built.

Boring is inherently kinder to existing utilities than trenching because a steerable bore can be threaded between marked lines instead of cutting across them. If you want the full comparison, read our breakdown of directional boring vs trenching. And when you are ready for a number, our directional boring cost guide walks through pricing.