Stormwater Drainage and Irrigation Systems: How to Locate and Map Them

Key Takeaways:

1. Storm drains and irrigation lines are hard to find - They're often plastic or concrete, making them invisible to basic metal detectors.
2. Hitting underground pipes costs money - Damaging drainage or irrigation systems leads to messy repairs and expensive fixes.
3. 811 doesn't mark private lines - Free utility marking misses your private systems like irrigation and storm drains.
4. Special tools find hidden pipes - Ground-penetrating radar and video inspections locate what eyes can't see.
5. Always locate before digging - A quick utility scan prevents costly mistakes and keeps projects on track.

If you’ve ever tried to dig in your yard and hit something unexpected—like a pipe, a cable, or even an old underground storage tank—you know how frustrating (and expensive) it can be. Stormwater drains and irrigation systems are especially tricky because they’re often buried deep and made of materials that don’t show up on basic scans. That’s why underground utility locating services are so important. They help you find these hidden systems before you start digging, saving you from headaches down the road.

Why Stormwater and Irrigation Systems Are Hard to Find

Unlike electric lines or gas lines, which are usually made of metal, stormwater drains and irrigation pipes are often plastic or concrete. That makes them non-metallic utilities, meaning standard metal detectors won’t pick them up. Even worse, many older systems weren’t mapped well—or at all. So if you’re a property owner planning to dig, you could be just one shovel strike away from a burst pipe or a flooded yard.

This is where private utility locating services come in. They use advanced technology like ground penetrating radar systems and specialized sonar to find these hidden lines. Without this kind of help, you’re basically digging blind.

What Happens If You Don’t Locate Them First?

Imagine you’re installing a new garden bed or building a patio. You start digging, and suddenly, water starts gushing out of the ground. Turns out, you’ve hit a stormwater drainage pipe. Now, instead of finishing your project, you’re dealing with a mess—and possibly a big repair bill.

The same goes for irrigation systems. If you accidentally cut through a main irrigation line, you could flood your yard or leave parts of your lawn without water. And if you damage sanitary sewers or water mains, the problems get even worse—think backed-up drains or even fines from the city.

That’s why utility locating isn’t just a good idea—it’s a must for any digging project, big or small.

How Underground Utility Locating Works

So, how do these services actually find buried pipes and drains? It’s not magic—it’s edge technology and smart techniques. Here’s the basic process:

First, the utility locator checks any existing records or utility mapping for your property. Sometimes, old blueprints or city records show where pipes should be. But since these aren’t always accurate, the next step is using tools like:

• Ground Penetrating Radar (GPR) – Sends signals underground to find pipes, tanks, and other objects.
• Electromagnetic locators – They work great for metal lines but can also detect some non-metallic utilities if they have tracer wires.
• Video Pipe Inspection – A small camera is sent through pipes to check their condition and path.

Once they’ve scanned the area, they’ll mark the ground with paint or flags so you know exactly where not to dig. Some services even give you a permanent record of the findings, which is super helpful for future projects.

Public vs. Private Utilities: What’s the Difference?

You might be thinking, “Can’t I just call 811 and get everything marked for free?” Well, yes and no.

Public utilities—like city water mains, sewer lines, and power cables—are marked for free when you call 811. But here’s the catch: they only mark the lines that belong to utility companies. If you have private utilities (like stormwater drainage, irrigation control wires, or a septic system), those won’t be included.

That’s why you need a private utility locating service. They specialize in finding the lines that 811 won’t mark—everything from underground storage tanks to old irrigation pipes buried on your private property.

When Do You Need Underground Utility Locating?

Pretty much any time you’re digging, you should think about utility locator services. Here are some common situations where it’s a lifesaver:

• Installing a new irrigation system or fixing an old one
• Building a deck, shed, or pool
• Landscaping projects that require deep digging
• Repairing or replacing water pipes or stormwater drains
• Checking for old underground storage tanks before construction

Even if you’re just planting a tree, hitting a buried line can turn a simple job into a disaster. A quick scan with underground utility locating services can save you thousands in repairs.

Why Choose Bess Utility Solutions?

At Bess Utility Solutions, we know how important it is to keep your project safe and on track. Our private underground utility locating services use the latest tech to find stormwater drains, irrigation lines, and other hidden systems. We also offer video pipe inspection to check the condition of your pipes and drains, so you know exactly what’s underground before you dig.

We work with property owners, builders, and facility management teams to prevent utility strikes and safety risks. Plus, our reports give you a permanent record of everything we find—no more guessing where those pipes are next time.

Digging without locating first is like driving with your eyes closed—it’s just asking for trouble. Instead of risking damage, delays, or fines, hire a professional utility locator to get it  done first. It’s a small step that keeps your project running smoothly.

If you’ve got digging plans and need help finding underground facilities, give us a call. We’ll make sure your site is safe, marked, and ready to go—so you can dig with confidence.