Excavation Contractor in Spearfish, SD

Spearfish is one of the fastest growing communities in the Black Hills, a university town at the mouth of Spearfish Canyon where new subdivisions keep climbing into the surrounding foothills. All that growth needs groundwork, and Digger Construction LLC is there for it, handling sewer, septic, retaining walls, grading, and snow removal for Spearfish homeowners, builders, and businesses.

Services We Provide

Groundwork for new construction

The new homes going up around Spearfish all start the same way, with site work. We clear and grade building lots, prep pads, set sewer and water lines, and build the retaining walls that hillside subdivisions almost always require. Getting the grade and drainage right at the start protects the home for the life of the property, and we plan every site with that in mind.

Hillside lots and retaining walls

As Spearfish development pushes up into the foothills, more and more lots come with a slope. A well-built retaining wall is what turns those slopes into level, usable yard and keeps soil from sliding. We build walls with the base preparation and drainage that stand up to the area's freeze-thaw winters, so they hold for the long haul instead of bulging after a season.

Sewer in town, septic in the country

Inside Spearfish, properties tie into city sewer, and we install and repair those lines. On the acreages and rural lots around the city and up the canyon, septic is the norm, and we install and service those systems to code. Knowing which applies to your property is the first step, and we sort it out during the free estimate.

Canyon-country winters

Spearfish Canyon and the surrounding high country can get hit hard by winter storms. We handle snow removal for Spearfish driveways, lots, and businesses, clearing and treating for ice so growth and weather do not leave you stuck.

Building near Spearfish Creek and the canyon mouth

Spearfish grew up around the mouth of Spearfish Canyon, with Spearfish Creek running right through town, and that water is never far from the work we do here. On lots close to the creek and the lower valley, a higher water table and the way ground holds moisture have to be factored into any septic field, foundation, or utility trench, or you end up fighting water for the life of the property. Up in the foothill subdivisions climbing away from the valley floor, it flips to slope and runoff, where grading and retaining walls do the heavy lifting. We read each Spearfish site for which problem it presents before we put a plan to it. Permitting runs through Lawrence County for septic and through the city for sewer and water connections, and we handle the permits and inspections so the job is documented and passes clean. The pace of growth here means a lot of our work is tied to new construction, where getting the grade, the drainage, and the compaction right at the start protects the home for decades. We would rather spend the time up front reading the ground than come back later to fix settling or water in a basement. From creekside lots to hillside subdivisions, we bring groundwork suited to the specific Spearfish terrain you are building on, handled correctly the first time.

Frequently Asked Questions

Do you do site work for new construction in Spearfish?

Yes. We clear, grade, prep pads, set utilities, and build retaining walls for new homes and subdivisions.

My Spearfish lot is on a slope. Do I need a retaining wall?

Often, yes. Sloped lots usually need a wall to create usable yard and prevent soil movement. We will tell you what your site needs during the estimate.

Is my Spearfish property on sewer or septic?

In town it is usually city sewer, and on rural lots it is usually septic. We work both and can confirm for your property.

Do you offer free estimates in Spearfish?

Yes, free same-day estimates. Call or text (605) 389-0863.