They have to be marked in spray paint in a colour appropriate to what it is. On grass, they must have both paint and flags. The colours are as follows:
Blue: Potable water lines
Red: Electrical lines
Orange: Telephone and cable TV lines
Yellow: Gas or steam lines
Green: Sewage lines
Purple: Slurry lines or pipes and/or cables of an undetermined nature
White and pink are not used for utilities - white is used for proposed digouts, and pink is used for surveyor markings
It is recommended to contact your local utility companies before digging in your backyard to determine the depth of underground utilities. This can help prevent damage and ensure safety.
It is recommended to contact your local utility companies before digging on your property to determine the depth at which you can dig safely without encountering any underground utilities or other obstructions. This can vary depending on your location and the specific layout of underground infrastructure.
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Cherry tree roots can be invasive and potentially cause damage to nearby structures or utilities. It is important to consider this when planting cherry trees near buildings or underground utilities.
Clear and dimensional accuracy in marking out is critical in all circumstances. You spend the time marking something out then you or others should be able to see it clearly. Drawing requirements must be followed at all times you mark out to the tolerance the drawing states.
Accurate surveys of underground utilities help prevent accidental damage during construction projects, reduce the risk of injury to workers and the public, and minimize costly delays and disruptions. It also ensures that infrastructure is maintained and operated safely and effectively.
Mil-std 129p
49 CFR 172.300
Yes, magnolia tree roots can be invasive and have the potential to cause damage to nearby structures or utilities due to their size and spread. It is important to consider this when planting a magnolia tree near buildings or underground utilities.
Yes, there are underground locations such as subway systems, basements, and tunnels that exist beneath the surface. These spaces serve various purposes including transportation, storage, and utilities.
To dig a trench effectively and efficiently, start by marking the trench's path and depth. Use a shovel or trenching tool to remove the soil in layers, keeping the sides of the trench straight and even. Work methodically and take breaks as needed to prevent fatigue. Dispose of the excavated soil properly and be mindful of any underground utilities.
The electrical code states which conductors can be used for underground installations. When underground installations are in progress, the back filling requires a safety tape to be installed. It is a yellow tape with the words "CAUTION buried electrical cables" printed on it. The tape is placed 12 inches below the finished grade and directly above the underground wiring. This positioning is so that if any machinery digging in the future hooks the tape, the work will stop immediately and hand digging will commence to find the cable before machine digging restarts. It is much cheaper to find the cable than to repair the cable.