Generated image: an excavator bucket stopped beside a broken yellow gas line in a trench while the operator stands back on the phone

Resources · Claims

The first hour after a utility strike, as a checklist

Claims·7 min read

The honest answer is that the first hour after a utility strike decides most of what the next six months cost, and almost none of it is about money. It’s about who’s standing where, which three phone calls happen in which order, and whether anyone took a picture of the paint before the utility crew dug it up. Tape this to the visor. We write excavation insurance in Colorado and we’ve stood over the hole, so here’s the hour as a numbered list, then what each step is for.

The checklist

  1. Stop the machine. Shut it off. Not idle. Off. A running engine next to a gas leak is an ignition source, and a bucket that keeps moving makes the damage worse.
  2. Get people out and upwind. Everyone in the trench comes out. Everyone on the site moves upwind of a gas leak and away from a downed or exposed electrical line. Keep the public back. If the machine is in contact with an energized line, the operator stays in the seat until the utility says it’s dead, unless the machine is on fire.
  3. Call 911 for gas, electric, or any injury. Don’t debate whether it’s a big leak. Dispatch would rather send an engine to a small one.
  4. Call the utility’s emergency number. It’s on the marks, on the ticket, and on the meter. They shut the line off and send the crew. Say what you hit, where, and whether it’s leaking or arcing.
  5. Call Colorado 811 and report the damage. This puts the strike on the record against your ticket number, and the ticket number is the thing that decides who’s presumed liable.
  6. No repairs. No backfill. No crimping. Not even the water line that looks like an easy fix. Expose the damage if it’s safe to, then leave it alone.
  7. Photograph everything before the utility crew arrives. The marks, their color, and their distance from the actual line with a tape in the frame. The hole. The damaged line and the tracer wire. The bucket or tooth. Wide shots showing where the machine was working relative to the paint. The ticket number on your screen. Their repair erases the evidence you need.
  8. Write down who, what, and when. Operator’s name, time of the strike, weather, who called whom, and the utility crew’s names and truck numbers when they arrive. A text to yourself works.
  9. Confirm the ticket was alive. Pull it up. Check the dig date and the marking date. Marks have a shelf life, and a ticket from a job that paused for rain may have expired.
  10. Call us, and report it to the carrier the same day. Not tomorrow. Reporting is not filing a claim; it satisfies the notice condition on the policy before the utility’s claims department has a file open.
  11. Don’t sign anything, and don’t pay anything. No acknowledgment of fault, no invoice on the spot, no “we’ll just settle this between us.” Give the utility crew your contact information and the carrier’s claim number when you have one.
  12. Preserve the site until the adjuster says otherwise. If you have to keep working, work somewhere else on the lot. Leave the strike area, the spoil, and the marks as they are.

That’s the hour. Everything below is why.

What to have in the truck before it happens

Already in the cab

  • The current 811 ticket, printed or saved offline on the phone
  • The utility emergency numbers for the area written on the ticket (gas, electric, water, fiber)
  • A tape measure and a can of white paint for the photos
  • The carrier's claims number and our phone number, (720) 529-0300, on the visor
  • A one-page incident sheet with blanks for time, operator, ticket number, and who was called
  • An extinguisher rated for the machine, checked this season

None of that costs much. All of it is impossible to find at 2 p.m. with gas in the air.

Why the order matters

People before paint. Steps 1 through 4 are about nobody getting hurt, and they’re the only steps where the order isn’t negotiable. Gas finds ignition sources you didn’t think of, and an exposed electrical service in a wet trench on the Front Range is the kind of thing that kills the person trying to help.

The record before the repair. Steps 5 through 9 exist because of one sentence in Colorado law.

Step 9 is the one crews skip. Locate markings stay valid while clearly visible, but for no more than thirty calendar days after the locate request due date (C.R.S. 9-1.5-103). (C.R.S. 9-1.5-103) A job that paused for a wet week and started again on a stale ticket is a strike with no valid notice, and that’s the version of the presumption you don’t want to argue. The Colorado 811 article covers the dates.

The carrier before the invoice. Steps 10 and 11 are about your policy’s conditions. Every general liability form has a notice condition, and the carrier reads the strike against your ticket, your photos, and how fast they heard about it. A strike reported the day it happened is an accident. A strike the carrier learns about from a utility’s attorney six weeks later is an argument. Signing an acknowledgment of fault or paying the first invoice on the spot doesn’t make it go away; it just takes the decisions out of the adjuster’s hands and puts them in yours, without the policy behind you.

What the policies do, and what comes to you

Quick version, because the gas line article has the long one.

The bill Where it typically goes
The utility’s repair and their other costs General liability, on a form without the underground exclusion
Third parties: the evacuated block in Colorado Springs, the neighbor’s flooded basement General liability, bodily injury and property damage
A cut sewer main or a ruptured fuel line into a creek crossing Typically a pollution liability question, not GL
Your own machine, if the strike damaged it Contractors equipment, not GL
Commission fines and civil penalties You. Neither the commission’s fines nor the statute’s civil penalties are insurable under most standard forms

On that last row: Separately from commission fines, C.R.S. 9-1.5-104.5 lets an owner, operator, excavator, aggrieved party, district attorney, or the attorney general sue for civil penalties: $200 for excavating without notice, and $5,000 for a first offense (up to $25,000 for later ones, and up to $75,000 after more than three in twelve months) when that failure damages a facility. (C.R.S. 9-1.5-104.5(2)(b), (2)(c), (3)) The safety commission’s own fine schedule is a second system on top of that, and the 811 article has both tables. Neither one is a claim. Both are the reason step 9 is on the list.

The row that decides everything is the first one. Some GL forms exclude underground property damage entirely. The XCU article explains where that line hides on the endorsement schedule, and a utility trenching crew running on a form that carries it is running without the coverage this whole checklist assumes.

After the hour

The utility’s first invoice usually arrives within a few weeks and it’s rarely the last one. Send every invoice, letter, and locate record to the adjuster and to us the day it arrives. Ask the utility, in writing, for their locate records and the marking date. If the marks were wrong, say so once, in writing, with the photos attached, and then let the carrier’s people do the arguing. The claims page has the same first hour for injuries, vehicle accidents, and slip-and-fall notices.

Where to go from here

If you hit something today, call. That’s the one we answer first. If you haven’t hit anything and you want to know whether your GL would actually respond when you do, send the dec pages and the endorsement schedule through the policy review and we’ll mark the underground exclusion and the notice condition against the work you do.

Serving businesses located in Colorado. Coverage is determined by the policy language and the carrier.

FAQ

Questions contractors ask us

More questions, answered

Do I have to call 811 after I hit a line, or just the utility?
Both, in the right order. The utility's emergency number gets the crew moving and, for gas, gets the line shut off. Colorado 811 is how the strike gets on the record against your ticket, and most utilities and the state's damage-prevention process expect the report. Call 911 first for gas or a downed electrical line. Then the utility. Then 811. Then us.
Should I try to repair the line myself?
No. Not gas, not electric, not fiber, and not water, even when it looks like a quick fix. Crimping a gas service, taping a cable, or backfilling over a leaking water line makes the damage worse and turns an accident into something the utility describes very differently to the adjuster. Expose it if you safely can, keep people away, and wait for the utility crew.
What should I photograph after a utility strike?
The marks and their color, with a tape measure showing the distance from the paint to the actual line. The ticket number on your phone or paper. The hole, the damaged line, the tracer wire, and the tooth or bucket that found it. Wide shots that show where the machine was working relative to the marks. Do it before the utility crew's repair erases all of it.
Does reporting a strike to my carrier raise my rates?
Reporting is not the same as filing a claim, and a notice-only report the carrier closes without payment reads differently on your loss runs than a paid claim. Not reporting is the bigger risk: every liability policy has a notice condition, and a late report gives the carrier an argument the day the utility's second invoice arrives. Report it, then decide with the adjuster how to handle the small ones.

Statutes and numbers on this page last verified September 2, 2026 by a licensed Colorado producer. How we verify.

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Serving businesses located in Colorado.