Regulations and Safety Before Digging
Who do you call before you dig in Calgary?
Is it illegal to dig without locating in Alberta?
Yes, it is illegal to dig without marking the locations of buried utilities. This is required by Alberta safety codes and regulations to prevent accidents and ensure public safety.
How long are utility locates valid in Alberta?
Utility locates in Alberta are valid for 30 calendar days. If digging has not started or completed within this timeframe, the locates must be refreshed or re-done.
What depth is considered ground disturbance in Alberta?
Ground disturbance in Alberta is typically considered at a depth of 450mm or more. However, hand digging to a depth of 300mm or less is usually not classified as ground disturbance if it does not permanently expose buried utilities.
How close to utilities can you dig?
You should avoid digging within 18-24 inches on all sides of utility marks. To ensure safety and accuracy, always reach out to a professional private locator before proceeding with your project.
What is considered ground disturbance?
Ground disturbance includes activities such as digging, excavating, trenching, drilling, and landscaping. These actions can occur on private, public, or federal land and may require proper utility locating beforehand. Always consult a professional locator to ensure safety.
Digging Depth and Frost Line Information
How deep can you dig in your backyard in Alberta?
In Alberta, you can dig up to 30 cm (11.8 inches) without special training. For deeper digging, training that complies with the Alberta Common Ground Alliance’s (ABCGA) Ground Disturbance 201 Standard is required. Always ensure safety by consulting a professional locator before digging.
How deep is the frost line in Calgary?
The frost line in Calgary typically reaches an average depth of seven feet during the winter months. Maximum depth usually occurs in late February or early March, though an unusually cold autumn can push it deeper before spring arrives.
How deep are gas lines buried in Alberta?
Gas lines are typically buried about 0.8 meters (32 inches) deep when installed. However, due to grade changes or construction, they may be closer to the surface over time. Always consult a professional locator before digging.
How deep are phone lines buried?
Phone lines are typically buried at a depth of one foot or less. For comparison, electrical and water lines are usually buried around 2 feet (24 inches), and high-voltage lines or water pipes can be as deep as 3 feet.
How deep is the fence post in Calgary?
Utility Locating Processes and Techniques
What is passive locating?
Passive locating is the process of detecting and identifying underground utilities by measuring their existing electromagnetic fields without directly connecting to the utility.
What is active locating?
Active locating involves detecting a specific utility line using the direct connection or inductive method. In the direct method, the locator connects directly to the line. In the inductive method, a frequency is introduced into the ground, which the utility reradiates for detection.
What is the difference between conductive and inductive locating?
What is inductive locating?
Inductive locating uses a transmitter’s antenna to transfer energy to an underground utility without a direct metal-to-metal connection. It’s an effective method when a direct connection to the utility isn’t possible.
How does a service locator work?
A service locator works by detecting and marking underground utilities. It uses specialized equipment to identify the location of utility lines, ensuring safe excavation and preventing damage during digging projects.
What is locating agent for?
What can make locating less accurate?
Locating accuracy can be affected by weather conditions like heavy rain or snow and electromagnetic interference from nearby sources such as power lines or radio towers, which can disrupt signal readings.
Tips and Techniques for Digging Safely
Tips for Digging Around Utility Lines
When digging near utility lines, always keep holes or trenches at least 18 inches away from either side of marked lines. Use caution, as locating tools may not always be perfectly precise. Consulting a professional locator is recommended for added safety.
How do you trench around utilities?
When trenching around utilities, use trench shields to stabilize trench walls and prevent collapses. For added safety and precision, consider using hydro excavating equipment to avoid damaging underground lines.
How to dig around buried utilities?
When digging near buried utilities, use a rounded or blunt-edged shovel and start digging to the side of the marked line. Avoid prying around the utility to remove soil, and once you locate the line, proceed with extreme caution to avoid damage.
How to use a utility locator?
How close to utility markings can I dig?
You should avoid digging within 18-24 inches of utility markings on all sides. Dig carefully and consider adjusting your project to a less congested area to ensure safety and prevent damage. Always consult a professional locator before digging.
Home Renovation and Construction Projects
Can I dig out under my house?
Yes, it is possible to dig out under your house, but it requires moving the house from its current foundation to a new one. This involves creating scaffolding to support the home’s weight while constructing the new foundation.
Can you dig out your own basement?
No, digging out your own basement is not recommended. Basement excavation requires specialized expertise and equipment to ensure structural safety and compliance with building regulations. Always hire professionals for this type of work.
Can you turn a partial basement into a full basement?
Yes, a partial basement can be converted into a full basement. This process typically involves extending the existing crawl space into usable basement space. Since access and workspace already exist, the cost is often lower compared to converting a full crawl space.
Can you dig out a crawl space to make a basement?
Yes, you can dig out a crawl space to create a basement. This process requires professional expertise to ensure structural stability and compliance with building regulations.
Do I need a permit to build a deck in Calgary?
Yes, you need a permit if your deck is higher than 0.6 meters (2 feet) above grade or if it is covered, like a gazebo or enclosed sundeck.
Utility Markings and
Locating Frequency
What color is used to mark the location of electrical facilities?
Red is used to mark the location of electric power lines, cables, conduit, and lighting cables.
What is the best frequency to locate utilities?
The 8 kHz frequency is a versatile option for utility locating, offering a balance between induction and connection modes while minimizing interference with unintended utilities.
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