Serving Clarksville, Middle Tennessee and the Nashville area · based in Woodlawn, TN
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Foundation Excavation in Woodlawn, TN
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Foundation Excavation in Woodlawn, TN

Foundation Excavation · Woodlawn, TN

Footers and basement holes dug to the plans

Foundation excavation is the digging for a building's footers, crawl space or basement before any concrete goes in. We dig to the line and depth on the plans for new houses, additions, shops and commercial buildings. That dig follows site prep and grading, once the pad is built. When the walls are ready, we backfill around them.

Builders and general contractors bring much of this work, from house builds to commercial buildings. Homeowners call too when they build a house or add on. We are based in Woodlawn, just west of Clarksville, and travel to the towns we cover. Estimates are free, so call or text (931) 572-8673.

What We Handle

  • Footer trenches dug to the line and depth on the plans
  • Crawl space and slab perimeters dug for houses, shops and barndominiums
  • Basement holes dug for new houses and additions
  • Footer trenches stepped down sloping lots in level runs
  • Open trenches cleared of rock and small debris for the footing inspection
  • Dirt stockpiled on site for backfill and final grading
  • Backfill around foundation walls once they are anchored or braced
  • Foundation digs for commercial buildings as well as houses

Free Foundation Excavation Quote

Tell us about the job and the ground. We will get right back to you.

Foundation Excavation: Digging Footers to the Plans

On a wooded lot, land clearing gets the trees and stumps out first. Tennessee 811 gets notice at least 3 and not more than 10 working days before the dig. Then the foundation dig works from the plans and the stakes. The excavator digs to the line and grade they give.

Montgomery County's plan review asks for the width and depth of the footings, which people here often call footers. Soil sets the width, and the code assumes clay can carry 1,500 pounds per square foot. Sedimentary rock such as limestone is assumed to carry 4,000. Where the building official expects weaker soil, a soils investigation sets the number.

The top of a footer has to be level. On a sloping lot, the footer steps down the hill in level runs. The dirt that comes out is stockpiled on the site for backfill and final grading. OSHA wants that spoil pile kept at least 2 feet back from the edge.

Basement Excavation in Red Clay Over Limestone

Basement excavation is the biggest foundation dig, and it is part of our work. The ground here is red clay over limestone. Under the Highland Rim, the bedrock is chiefly limestone, chert, shale and sandstone.

Sinkholes form readily on the Clarksville side of the Highland Rim. Montgomery County's stormwater concept plans have to show them. The county's grading permits also call for as-built plans that mark sinkholes, caves and other karst features.

OSHA's trenching and excavation rules cover deep footer cuts and basement holes. Once a cut reaches 5 feet, a protective system is required unless the cut is entirely in stable rock. The options are sloping or benching the walls, shoring them, or shielding with a trench box. At 20 feet, the system has to come from a registered professional engineer.

Backfilling Around Crawl Space and Basement Walls

The code keeps backfill off a foundation wall until the wall is strong enough. It also has to be anchored to the floor above or braced. A wall holding back under 4 feet of dirt can be backfilled without bracing. When the walls are ready, the stockpiled dirt goes back in around them.

Basement walls that hold back earth around living or usable space need drains under the code. Those foundation drains sit at or below the top of the footing, so they go in before the backfill. Montgomery County's plan review asks for the drain locations on the plans.

After backfill, the code wants at least 6 inches of fall in the first 10 feet from the walls. The county's plan review also asks the plans to show that drainage away from the building. Trenches for the water, power and sewer lines are underground utility work, and they can fit the same schedule.

Excavator digging a foundation in red clay Corner of a basement dig in red clay with a string line set for grade

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How We Work

How a Job With Wilson Forestry and Excavating Runs

From the first call or text to the finished property, here is how it goes.

1

Call or Text Us

Call or text (931) 572-8673 with what you need done and where the property sits. Photos and rough acreage help us size the job before we drive out.

2

Site Visit and Free Estimate

We come out and look at the ground, the access, and where the water runs. Then we put a price on the work and go over it with you. The visit and the estimate are free.

3

Pick a Start Date

Once you approve the estimate, we get you on the schedule. Weather and ground conditions set which week works, and we tell you where you stand.

4

The Work Gets Done

Equipment comes in and the job runs in order, from clearing to digging to final grade. We keep the site drained and passable while we work.

5

Final Walkthrough

We go over the finished job with you before the equipment leaves. Anything that needs another pass gets handled while we are still on site.

FAQ

Foundation Excavation Questions, Answered

Common questions about foundation excavation across Clarksville, Middle Tennessee and the Nashville area. If yours is not here, call or text and ask.

Call (931) 572-8673

How deep do footers have to be in Middle Tennessee?
Montgomery County enforces the 2018 International Residential Code, which puts exterior footers at least 12 inches below undisturbed ground. Footers also need frost protection, and one way is to dig below the local building department's frost line. Solid rock is another, and a footer cannot rest on frozen ground. Your permit office has the frost depth, and our guide to footers for a house in Tennessee covers the rest.
Do you dig basements and crawl spaces?
Yes, both. A basement needs a full hole, and a crawl space or slab mostly needs a perimeter footer trench. Shops and barndominiums on a slab get that same perimeter dig. For a monolithic slab, Montgomery County's slab inspection wants the perimeter footing exposed and the gravel placed and compacted.
What happens when the dig hits rock?
Rock changes the time and the approach for foundation excavation. It can turn up in a footer line or a basement hole, because limestone sits under the clay here. The code counts a footing set on solid rock as protected from frost. We look at the site and the plans before we price the dig.
When does the footing inspection happen, and what does it check?
In Montgomery County, the footing inspection comes before any concrete is poured, on a new house or an addition. The inspector wants an open trench free of rock and small debris, with the steps placed. Rebar stakes also have to sit at the top-of-footing elevation. Our dig leaves the trench open and clean for that inspection.
Who pours the concrete for the footers?
A concrete crew forms and pours the footers, along with any poured walls or slab. Our part as the excavation contractor is the dig before the pour. We come back to backfill once the walls are ready.
What does foundation excavation cost?
It comes down to the footprint and the linear feet of footer. Basement or crawl space depth, rock, wet ground, access and how far we travel all move it. Our basement excavation cost guide shows market numbers for a basement dig. For your job, the estimate is free, so call or text (931) 572-8673.
More From Wilson Forestry & Excavating

Work That Pairs With Foundation Excavation

Drain line and cleanout set in a trench along a backyard fence

French Drains

Water standing in the yard or against the house needs a way out. We regrade the ground and put in French drains and pipe that carry it off.

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Orange and gray conduit runs laid in a deep utility trench, skid steer parked above

Underground Utilities

We trench and backfill for water lines, electrical conduit, sewer lines, and septic lines. Your plumber or electrician makes the connections, and we handle the digging and the ground work.

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Residential lot cleared down to bare dirt with the trees along the road left standing

Land Clearing

We clear lots and acreage of trees, brush, and stumps across Montgomery County and Middle Tennessee. The ground gets cleaned up so it is ready to build on or put back into pasture.

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Why Choose Wilson Forestry & Excavating

Clearing the way for your next big project

One Company From Clearing to Grade

We clear the lot, dig and grade the pad, cut the driveway, and trench the utilities. One company handles the dirt work from the first tree to the final grade, so the job does not wait between contractors.

Builders Send Us Repeat Work

Much of our work comes from builders and general contractors, on house builds and commercial buildings. The same names call us back for the next site.

Roots in Road Building

The company started out cutting roads for a timber company's trucks and equipment. Farm roads, construction entrances, haul roads, and timber roads are still a big part of what we build.

Free Estimates Across the Area

Estimates are free, and we come out to the site to give you one. We cover Clarksville and Montgomery County out to Dover, Springfield, Dickson, Nashville, and Franklin.

Guides and Resources

Foundation Excavation Guides

Free Estimates

Get In Touch With Wilson Forestry & Excavating

Tell us what the job is and where the property sits, and we will get you an estimate. You can also call or text (931) 572-8673 if that is faster.

  • (931) 572-8673 · call or text
  • Woodlawn, TN · serving Clarksville, Middle Tennessee and the Nashville area
  • Free estimates · Residential, farm and commercial work

Get a Free Quote

Tell us about the job and the ground. We will get right back to you.

Call (931) 572-8673