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Watch for private facilities such as sprinklers, power lines to garages or out buildings, propane gas lines, gas grill lines, or invisible fencing as these will not be located by Minnesota utility companies. Skip to Main Content.
Loading Close. Do Not Show Again Close. Dig on my Property Before you dig Any time that digging is done on any property within the city limits, Minnesota law requires that Gopher State One Call be contacted 48 hours before you plan to dig to identify if there are any utilities buried on the property. This service is free to the property owner. Gopher State One Call Use caution when digging It is the responsibility of the property owner to dig in a careful and prudent manner.
It will be quite safe as long as you are digging within your residential lot, and not outside the lot, for example on street paving etc. Digging holes on your street curb and paving will require a permit in most cases, depending on your state laws.
Earthwork support to prevent the risk of collapse must be installed inside a trench with a minimum depth of 1. Timber shoring is a common method of preventing the walls of a trench from collapsing onto the worker. Trench boxes and sloping are other protective measures that can be used. You cannot work inside in a trench that is 1.
A permit will be required for trenches that are 5 feet 1,mm or deeper. Workers may not enter or start working in such trenches unless they have obtained a permit from DOSH which satisfies the requirements for earthwork support and safe access in and out the trench.
Safe Access and Exit from Excavation. The contractor or anybody responsible for digging pits and trenches on your residential lot must provide a safe means of access and exit for workers. This is required for trenches which are 4 feet 1,mm or deeper. Safe means of access and exit can be provided by making use of steps, ladders and ramps.
As a rule, all mobile and static loads should not encroach within mm 3. No machinery, vehicles, equipment, materials or people should stand within mm from the excavation. Material excavated from the trench should be stored outside the mm perimeter on both sides of the excavation.
Protection of Exposed Utility Services. Once underground services have been safely exposed, they should be protected from damage by people, machines, tools, vehicles and weather elements.
Make sure that the services are supported as required, but you cannot remove them without a permit. Exposed services can be hazardous especially if they are not protected or if they are damaged by workers. In order to prevent hazards and provide a safe environment for both workers and the community, you may be required to disconnect the services temporarily.
If your neighbours and the community are going to be affected by this, they should be notified in advance. Damaging a gas pipeline with your tools will cause hazardous fumes to escape and ignite fires. Damaged electrical cables pose a risk of electrocution and fire outbreaks. Hitting a water supply pipe or drainage pipe can cause flooding in the yard.
State and city authorities impose fines for damage to utility services. Safe Backfilling of Trenches and Excavations. When you are done with your work or outdoor project, you have to place and align the services back in their original position. Make sure that the backfill bed on which the pipe is lying is compacted to a suitable AASHTO density to avoid earth settlement. The trench backfilling must be free from organic material, rocks, concrete, bricks, stones, frozen material and other hardcore material.
Do not encase, cover up, bury or embed the service pipes in wet concrete because it will be difficult and hazardous to break up the hardened concrete during a utility dig-up. Backfill the exposed utility trenches with squeegee or well-graded sand, loam soil, silt sand or any Class D bedding from excavated material. The minimum depth of underground electricity cables is mm 18 inches , and they can be as deep as mm 40 inches or more depending on the voltage they are carrying. Underground gas pipelines are buried at various depths, depending on their location, land use, zoning, as well as the type of pressure they are carrying.
Gas pipes on private residential lots are buried at a much lower shallow depth than those laid under or near roads, highways and pedestrian walks. On private residential lots and building entrances, gas pipes are laid mm 15 inches under the ground.
On pedestrian sidewalks, they are found mm 24 inches under the ground, and on roads and highways, they will be buried much deeper at mm 30 inches.
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