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Land Excavation in Bozeman, MT

Earthwork Done Right the First Time in Bozeman

Site prep, grading, trenching, and foundation digs from a crew that has run these machines across the Gallatin Valley for two decades. Free on-site walkthroughs.

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Land excavation and site grading in Bozeman, MT

From the Cab

Lessons from two decades of digging across southwest Montana, shared job by job.

Excavator reading Gallatin Valley ground on a Bozeman site

Reading the Ground Before You Dig in Bozeman

July 1, 2026

Most excavation problems are decided before the machine ever starts. After twenty years of digging across the Gallatin Valley, the pattern is clear: the crews that read the ground first spend less time fixing surprises later. Here is what two decades from the cab has taught us about the dirt under a Bozeman lot.

Know What Soil You Are In

Valley ground is not one thing. A lot near Cooper Park can run silty loam on top and turn to river cobble a few feet down, and cobble changes everything about how a trench wall behaves. Before we bid, we look at the neighbors, the road cuts, and any soil report on file. Guessing at the soil is guessing at the whole schedule.

Respect the Water Table

Spring runoff in Bozeman is real, and a hole that is dry in August can hold water in May. On any deep dig we plan for a pump and shape the cut so the walls stay stable while we work. This matters most on foundation and basement excavation, where a wet bottom will delay a pour if you are not ready for it.

Locate Before You Cut

Nothing on a job site is worth hitting a gas line for. We call 811 at least two business days ahead on every dig, no exceptions, so water, gas, and fiber are marked before a bucket touches soil. It is the cheapest insurance in the business, and it has kept twenty years of trenches off Rouse Avenue and everywhere else out of trouble.

Compact Like the Build Depends on It

Because it does. Fill placed loose settles, and a settled pad cracks concrete or ruts a driveway inside one Montana winter. We place structural fill in lifts and test it to 95 percent of maximum dry density before anyone builds. That single number is the difference between a pad that holds and a callback next spring.

Grade for Water From Day One

Water has to leave the site, and it will find the low spot whether you planned one or not. Good site preparation and grading sets positive slope away from every structure from the first pass, not as an afterthought once the concrete is in. On sites over an acre we add silt fence and inlet protection so stormwater leaves clean.

Reading the ground is the whole game, and it is why the same operators have kept getting called back across Gallatin County for two decades. Planning a dig in the Bozeman area? Call Ofaolains at (406) 605-6283 or contact us for a free on-site walkthrough.

Read the full article
  • Two decades on the machinesThe same hands have run excavators and dozers across the Gallatin Valley since the early 2000s.
  • 811 locate on every digWe mark utilities two business days ahead of any bucket, on jobs of every size.
  • Compaction tested to specStructural fill is placed in lifts and verified to 95 percent density before you build.
  • Accountable and insuredA licensed, insured local crew with a named operator on every job, and a written scope up front.

Ofaolains provides land excavation in Bozeman, MT, and the work spans trenching and utility excavation, foundation and basement digs, land clearing and grubbing, drainage and erosion control, soil compaction and structural fill, and the finish grading that shapes a raw parcel to plan. Our crews run hydraulic excavators, crawler dozers, and skid steers every working day. We read a grading plan, hold the pad elevations, and hand off a compacted subgrade a builder can trust. That earthwork has gone in on lots from Baxter Lane out to the parcels off Durston Road in the 59718 corner of town.

We have been moving dirt across southwest Montana for more than twenty years, and that track record shows up in the small decisions. A trench cut past five feet gets a bench or a trench box, never a shortcut. A structural fill goes in as controlled lifts and gets tested to 95 percent of maximum dry density before anyone pours on it. The experience is really the product. Ground near the Gallatin County frost line, a spring water table, and the river cobble you hit south of Kagy Boulevard each behave differently, and a crew that has already dug them knows what the soil will do next.

Every job opens with a locate. We call 811 at least two business days ahead so gas, water, and fiber are marked before a bucket ever touches soil. From there the sequence stays simple. We strip and stockpile the topsoil, cut and fill to the engineer's grade, and set positive drainage away from the structure. On any site that disturbs an acre or more we run a SWPPP with silt fence and inlet protection so stormwater leaves the parcel clean. A homeowner near Cooper Park gets the same care as a commercial pad off Oak Street.

Clean earthwork is what the rest of a build stands on. A footing poured over a soft subgrade will crack, and a driveway laid on uncompacted fill settles into ruts inside one Montana winter. We would rather spend the extra hour on compaction and a GPS grade check than drive back for a callback. That is the standard we hold on a single-family lot in the University District and on a road base job running out toward Belgrade. Pick up the phone at (406) 605-6283 and we will walk your site with you.

What Experienced Work Costs to Do Right

Excavation pricing tracks the machine time, the material hauled, and the ground itself. Rock, a high water table, and tight access all add hours. The ranges below are typical for the Bozeman area, and we put the firm number in a written scope after we walk the site. No number gets quoted before we see the dirt.

Excavator and operator$110 to $325 per hour
  • Machine and certified operator
  • Day and week rates discount the hour
Get a scope
Site grading and leveling$0.40 to $2.00 per sq ft
  • Most lots land near $1.40 per sq ft
  • Cut, fill, and finish grade to plan
Get a scope
Land clearing$1,400 to $6,200 per acre
  • Light brush at the low end
  • Heavy timber with grubbing at the high end
Get a scope

The Range of Earthwork We Take On

One local crew for the dirt work under a house, a driveway, a utility run, or a whole subdivision lot.

Site Preparation and Grading

Clearing, topsoil stripping, cut and fill, and rough-to-finish grading that shapes a raw parcel to the engineer's plan, with pad elevations and drainage slopes set clean.

Land Clearing and Grubbing

Removal of trees, brush, and undergrowth, then grubbing the stumps and roots below grade, opening a wooded Gallatin Valley lot for construction.

Foundation and Basement Excavation

Footings, crawl spaces, and full basements dug to plan depth and dimension, with spoil managed and a level, compacted bearing surface for concrete.

Trenching and Utility Excavation

Water, sewer, gas, electrical, and drainage trenches with proper bedding and backfill, sloped, benched, or boxed for safety in cuts five feet and deeper.

Drainage and Erosion Control

Positive grading away from structures, swales and French drains, plus silt fence and inlet protection to meet stormwater rules on larger sites.

Driveway and Road Base Prep

Subgrade compaction, geotextile separation fabric, and crushed aggregate base built into a stable, well-draining gravel drive or paving-ready subbase.

Questions About Our Background and Methods

How long have you been running excavation in the Bozeman area?
More than twenty years across southwest Montana. The same operators who bid your job are the ones on the controls, so the track record on the Gallatin Valley soil, frost line, and water table is real, not borrowed. That history is why we can read a lot before the first cut.
Do you call 811 before digging?
Always, on every job. We place the locate at least two business days ahead so gas, water, and fiber are marked before a bucket touches soil. Skipping that step is how a crew hits a line, and we have never treated it as optional in twenty years off Rouse Avenue or anywhere else.
What does 95 percent compaction mean and why does it matter?
It means the structural fill has been packed to 95 percent of its maximum dry density, measured against a Proctor test. That is the standard number a footing or a slab needs under it. Fill placed loose settles, and a settled pad cracks concrete, so we place in lifts and test before anyone builds.
How deep can a trench go before it needs shoring?
OSHA Subpart P requires a protective system in any trench five feet deep or greater, either sloping, benching, or a trench box. We carry the boxes and a competent person inspects the cut daily. In river cobble south of Kagy Boulevard that protection is not negotiable.
What equipment and fill do you stand behind?
We run hydraulic excavators, crawler dozers, skid steers, and backhoe loaders, with GPS and laser grade control on the grading work. For fill we place engineered structural fill, screened topsoil, crushed aggregate base, and geotextile separation fabric, and we tell you exactly what is going into your ground.
Do you offer any guarantee on the work?
Yes. We put the scope, the grade targets, and the compaction spec in writing, and we stand behind the earthwork we place. If a graded or compacted surface we certified does not hold to the spec we quoted, we come back and correct it. The written scope is your record.
Do I need a permit or grading plan to excavate my lot?
Often yes, and it depends on the parcel. Bigger sites need a grading plan, and anything disturbing an acre or more triggers a stormwater SWPPP with silt fence and inlet protection. We work off the engineer's plan and help you understand what Gallatin County will want before we mobilize.
Are you licensed and insured?
Yes. We are a licensed, insured local excavation crew, a named operator runs every job, and we are glad to share our current details on request. Accountability is part of why owners near Cooper Park and builders off Oak Street call us back for the next lot.

The Reach of Our Bozeman Operation

We run earthwork across Bozeman and the surrounding Gallatin County communities, from in-town lots to the valley towns and the parcels up the canyon.

  • Bozeman, MT (59715, 59717, 59718)
  • Belgrade, MT
  • Four Corners, MT
  • Manhattan, MT
  • Three Forks, MT
  • Gallatin Gateway, MT

Not sure we reach your parcel? Call (406) 605-6283 and we will tell you straight.

Talk to a Veteran Excavation Team

Ready to move some dirt? We will walk your Bozeman site, read the grading plan, flag the ground conditions we can see, and hand you a clear written scope with a firm number. Two decades of digging across the Gallatin Valley stands behind every job, from a basement hole to a full road base, and the same operators do the work start to finish.

Call (406) 605-6283