Route and depth
The line the trench follows, the required cover for the service, and any conflicts with existing structures, trees, drives, or other utilities along the way.
Southeast Michigan site work
Trenching And Hole Drilling
Open the trench, protect the people in it, bed and backfill the line properly, and hand a clean excavation to the licensed trade making the connection.
Locate first, then dig. Public locates and private lines are two different responsibilities.
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Describe the parcel and the scope and we will respond with the questions that make the review useful.
Most water and sewer line excavation is open-cut work: a trench of a stated depth and width, dug on a line, supported so people can work in it safely, then bedded, backfilled, and restored. The pipe and the connection belong to a licensed trade; the excavation, protection, bedding, and restoration are the earthwork scope.
Hole drilling covers the point excavations that go with utility work and structures: post holes, pier holes, and similar bored openings where a trench is not the right tool.
This trenching and hole drilling page describes excavation-only delivery, so the boundary with plumbing, electrical, and municipal connection work stays visible in the scope. Trenching and hole drilling planning.
What the excavation scope covers, and what it does not
The excavation scope is the trench itself: route, depth, width, spoil handling, protective systems for the people working in it, bedding material under and around the pipe, backfill in controlled lifts, and restoration of the surface that was cut. Depth is usually driven by the service, the required cover, and frost considerations for the project.
What sits outside that scope matters just as much. Making the connection to a public main, tapping a water service, pressure testing, inspection by the utility or municipality, and any licensed plumbing or electrical work are separate responsibilities. West Branch does not assume those roles by digging the trench, and the written scope should say who holds each one.
Trench scope components
Locates: public and private
A MISS DIG 811 request covers participating facility owners. Private lines on the property, such as irrigation, invisible fence, yard lighting, and previous owner installs, are identified by the property owner or a private locate service.
Excavation protection
Sloping, benching, shielding, or shoring as the depth and soil require, with the competent-person responsibilities defined before anyone enters the trench.
Bedding and backfill
Material under and around the pipe, lift thickness, compaction, and whether native spoil is acceptable as backfill for that installation.
Surface restoration
Lawn, gravel, asphalt, or concrete over the trench line, and whether restoration is temporary, permanent, or handed to another contractor.
Handoff to the licensed trade
The point where the trench is ready, the inspection sequence, and who is present for it. An open trench held open for days is a cost and a safety item.
How a utility trench is planned
1. Define the run
Start point, end point, depth, service type, and the surfaces it crosses. Where the route crosses a road or right of way, the road authority is contacted first.
2. Request locates
The MISS DIG 811 ticket is placed within the statutory window and the marks are verified on site. Private facilities are handled separately and in writing.
3. Plan the protection
Depth, soil type, and adjacent loads determine the protective system. This is decided before the excavation opens, not when someone needs to step down into it.
4. Excavate and bed
Spoil is placed clear of the edge, the trench bottom is prepared, and bedding is installed to suit the pipe and the specification.
5. Backfill and restore
Backfill goes in controlled lifts with compaction appropriate to what is above, then the surface is restored to the agreed standard.
Site constraints and approvals to confirm
Michigan law requires a locate request before excavation. MISS DIG 811 covers participating public facility owners; it does not locate privately owned lines on a property, and that distinction is the source of most yard-utility damage. Confirm current ticket requirements and excavator responsibilities directly with MISS DIG 811.
Trench safety is regulated work. MIOSHA construction standards govern protective systems, access and egress, spoil placement, and competent-person duties for excavations. A trench that looks stable is not evidence that it is, and soil conditions change with weather and time.
Connections are licensed work. Tapping a main, making a plumbing connection, and energising an electrical service are performed by the appropriate licensed trade under the applicable permit. The excavation scope should name that trade and the inspection sequence rather than implying a single-source completion.
Official sources — confirm current requirements with the office named for the parcel.
- MISS DIG 811 information for excavators — Current ticket mechanics and excavator responsibilities
- MISS DIG 811: Public Act 174 of 2013 — Statutory basis for Michigan locate requests
- MIOSHA excavation and trenching topic page — Excavation protective-system and competent-person requirements
Service area and next step
West Branch Builders digs utility trenches and bored holes across Southeast Michigan in coordination with the licensed trades and municipal inspectors involved in the connection.
Send the address, the service being installed or replaced, the approximate run length, photographs of both ends, and the name of the plumber, electrician, or utility contractor already engaged. If the route crosses a road or right of way, say so early.
Related pages: Contact Us, All excavation services.
Related planning guides
Related pages: Site Work Permits, MISS DIG and Excavation Safety, Choosing an Excavation Contractor.
Questions to carry into the review
Do I need to call MISS DIG 811 for work on my own property?
Michigan's locate law applies to excavation, including work on private property. Place the ticket within the required window, verify the marks on site, and remember that the service locates participating facility owners' lines, not private lines installed by an owner or a previous contractor. Confirm current requirements directly with MISS DIG 811.
Who is responsible for locating private lines in my yard?
The property owner, usually with a private locating service. Irrigation, yard lighting, invisible fence, propane runs, and lines to outbuildings are commonly not covered by the public locate. Identifying them before the trench is opened is far cheaper than repairing them afterwards.
Does West Branch make the plumbing or utility connection?
No. The trench, protection, bedding, backfill, and restoration are the excavation scope. Connections, taps, testing, and any licensed plumbing or electrical work are performed by the appropriate licensed trade under the applicable permits, and the scope should name who that is.
Can the spoil from the trench be used as backfill?
Sometimes, depending on the material, the pipe, and what sits above the trench. Rocky, organic, or saturated spoil is often unsuitable, and a trench under a drive or slab usually needs a specified backfill and compaction. That decision belongs in the scope before the trench opens.
Ready for a more specific conversation?
Send the parcel address, photographs of the site and access route, any site plan or soil evaluation, the date the site is needed, and the condition the next trade expects.
Call (734) 476-1098