Before you install a fence, build a deck, plant trees, or start any excavation project, you should know what’s buried beneath your property. Although underground utilities remain out of sight, they can significantly impact your project’s safety, timeline, and budget.
A professional utility locator can identify many underground utilities and structures before digging begins. As a result, property owners, contractors, and facility managers can avoid costly utility strikes and keep projects moving forward safely.
Quick Answer: What Can a Utility Locator Find in Your Backyard?
A professional utility locator can find a wide range of underground utilities and subsurface features, including:
- Water lines
- Sewer laterals
- Stormwater and drainage pipes
- Gas lines
- Electrical lines
- Fiber optic and communication cables
- Irrigation systems
- Private utility lines
- Underground conduits
- Some abandoned utilities and buried structures
However, not all underground utilities are marked through the free 811 services. That’s why many property owners and contractors also hire private utility locating companies such as Safe Site to gain a more complete understanding of underground conditions.
When Should You Call 811?
You should contact 811 if you are an homeowner and before:
- Installing fences
- Building decks
- Planting trees
- Excavating for landscaping
- Installing pools
- Digging trenches
- Running new utility services
- Performing construction projects
Even small excavation projects in your front yard or backyard can damage underground infrastructure if utilities are not properly identified.
When Should You Call us?
While 811 marks public utilities, Safe Site helps uncover the underground infrastructure that standard utility marking programs often miss.
Consider Safe Site when you need:
- Private Utility Locating to identify privately owned utility lines.
- Utility Mapping for planning, design, and construction projects.
- Ground Penetrating Radar (GPR) to detect underground utilities and subsurface features.
- Subsurface Utility Engineering (SUE) to reduce utility conflicts before construction.
- Detailed Utility Data that goes beyond standard paint markings.
Whether you’re planning a residential, commercial, or municipal project, Safe Site provides the information needed to excavate safely and confidently.
Why Underground Utility Locating Matters
Every year, utility strikes occur because excavation begins without accurate information about what lies below the surface. Even a small digging project can damage a buried utility line, resulting in repair costs, service interruptions, safety hazards, and project delays.
Fortunately, utility locating helps identify potential conflicts before excavation starts. Consequently, project teams can dig with greater confidence and reduce unnecessary risks.
What Utilities Can a Utility Locator Find?
Water Lines
Water service lines often extend from municipal connections to homes, irrigation systems, pools, and outdoor fixtures. Utility locating can identify:
- Main water service lines
- Irrigation and sprinkler systems
- Pool water supply lines
- Secondary water connections
By locating these lines beforehand, you can prevent unexpected breaks and costly repairs.
Sewer and Drainage Lines
Many property owners do not know the exact path of their sewer lateral or drainage system. Professional utility locating can help identify:
- Sewer laterals
- Stormwater pipes
- French drains
- Culverts
- Drainage systems
As a result, contractors can avoid damaging critical infrastructure during excavation.
Gas Lines
Gas lines require special attention because even minor damage can create significant safety concerns. Utility locating can help identify:
- Natural gas service lines
- Propane supply lines
- Gas lines serving outdoor kitchens or fire features
Therefore, locating gas infrastructure before digging is essential for safe excavation.
Electrical Lines
Many residential and commercial properties contain buried electrical systems. These may include:
- Main electrical service lines
- Site lighting circuits
- Pool and spa electrical systems
- Power feeding detached buildings
Locating electrical utilities helps reduce the risk of outages, equipment damage, and injuries.
Communication and Fiber Optic Cables
Modern properties often contain multiple communication systems underground. Utility locators can identify:
- Fiber optic cables
- Internet lines
- Telephone cables
- Security system wiring
- Low-voltage communication systems
Because communication lines are frequently overlooked, locating them before excavation can prevent unexpected service disruptions.
Private Utilities
Private utilities represent one of the most common causes of utility strikes.
Professional private utility locating can identify:
- Private electrical systems
- Irrigation controls
- Site lighting circuits
- Private water services
- Utility lines serving detached garages, workshops, and sheds
- Communication infrastructure beyond public connection points
Unlike public utility markings, private utility locating focuses on infrastructure that property owners typically own and maintain.
The utilities are marked on the ground with specific paint colors or sprayed to help them be identified quickly.
Underground Structures and Unknown Objects
In addition to utility lines, advanced locating technologies such as Ground Penetrating Radar (GPR) can help identify underground features that may not appear on plans or records.
These features may include:
- Abandoned utility lines
- Underground conduits
- Buried foundations
- Underground storage tanks
- Subsurface obstructions
- Unknown infrastructure
While not every buried object can be positively identified, GPR provides valuable information about subsurface conditions before excavation begins.
811 vs. Safe Site Utility Locating: What's the Difference?
Many people assume that calling 811 will identify every utility on a property. However, that’s not always the case. Although 811 is a free service, it does not typically provide a complete picture of underground conditions.
| Service | 811 Utility Marking | Safe Site Private Utility Locating |
|---|---|---|
|
Cost |
Free |
Professional service |
|
Public utilities |
Yes |
Verification available |
|
Private utilities |
Usually No |
Yes |
|
Utility mapping |
No |
Yes |
|
Ground Penetrating Radar (GPR) |
No |
Yes |
|
SUE services |
No |
Yes |
|
Construction planning support |
Limited |
Yes |
|
Detailed utility documentation |
No |
Yes |
What Happens When You Call 811?
When you contact the free number 811, the service notifies participating utility owners that excavation is planned. Utility companies then mark the approximate location of their publicly owned infrastructure.
These markings typically include:
- Public gas lines
- Public electrical lines
- Public water systems
- Public communication infrastructure
Because the service is free and often required by law, every excavation project should begin with an 811 request, even if you’re digging in your own front or backyard. After 811 marks the public utilities, you may still need to identify privately owned underground utilities that aren’t covered by their service. If 811 is unable to locate the utilities you need, Safe Site can provide professional private utility locating services to help ensure your project proceeds safely and confidently.
What Doesn't 811 Usually Mark?
While 811 is valuable, it generally does not locate private utilities. In many cases, unmarked private infrastructure includes:
- Sewer laterals
- Irrigation systems
- Private electrical systems
- Site lighting
- Private water lines
- Communication systems
- Utilities serving detached structures
As a result, many utility strikes occur on infrastructure that 811 does not mark.
Why Contractors and Engineers Choose Safe Site
Safe Site helps contractors, municipalities, engineers, facility managers, and property owners better understand underground conditions before excavation begins.
Our services include:
- Private Utility Locating
- Utility Mapping
- Ground Penetrating Radar (GPR)
- Concrete Scanning
- Subsurface Utility Engineering (SUE)
- Vacuum Excavation Support
- Pipeline Inspection
By combining advanced technology with experienced field crews, we help clients reduce utility strikes, improve project planning, and support safer excavation practices.
Frequently Asked Questions (FAQs)
Some frequently asked questions to help you understand our service in details.
Can a utility locator find private utility lines?
Yes. Professional utility locators can identify many private utility lines, including private electrical systems, irrigation systems, sewer laterals, communication lines, and utilities serving detached structures.
Does 811 locate private utilities?
In most cases, no. 811 primarily coordinates the marking of publicly owned utilities. Private utilities are generally the responsibility of the property owner and often require private utility locating services.
Should I call 811 or a private utility locator?
For the best results, call both. First, contact 811 to have public utilities marked. Then, contact a private utility locating company such as Safe Site to identify private infrastructure and gather additional subsurface information.
Can utility locators find sewer lines?
Yes. Professional utility locating equipment can often identify sewer laterals and underground drainage systems, depending on utility materials and site conditions.
Can Ground Penetrating Radar find underground utilities?
Yes. Ground Penetrating Radar (GPR) can help identify many underground utilities and buried structures. However, detection capabilities depend on utility type, depth, soil conditions, and site characteristics.
How deep can utility locating equipment detect utilities?
Detection depth varies based on utility material, soil conditions, equipment, and locating methods. Professional utility locators often use multiple technologies to improve accuracy.
The Best Approach: Call Both
The safest approach before any excavation project is to use both services.
First, contact 811 to have public utilities marked for free. Then, hire Safe Site to locate private utilities and provide additional subsurface information. Together, these services provide a more complete understanding of underground conditions and help reduce the risk of utility strikes.
Dig With Confidence
Underground utilities may be hidden, but they should never be a mystery. Whether you’re planning a backyard improvement project, commercial development, municipal upgrade, or infrastructure installation, understanding what lies below the surface is essential.
Safe Site helps clients locate, map, and verify underground utilities before excavation begins. As a result, project teams can make informed decisions, improve safety, and reduce costly surprises.
Need private utility locating, utility mapping, GPR scanning, or SUE services? Contact Safe Site today and get a clearer picture of what’s underground before you dig.