Excavation Contractors in Knoxville, TN

Excavation contractors in Knoxville work in the middle of the Ridge-and-Valley Appalachians, where long, narrow ridges such as Sharp's Ridge, Beaver Ridge and Brown Mountain run northeast to southwest with broad valleys between them. Elevations run from just over 800 feet at the riverfront to 1,391 feet on top of Sharp's Ridge. Our excavating company grades lots, digs footings, trenches utility lines, installs French drains, builds gravel driveways and clears land for homeowners and small builders across Knox County.

The ground under Knox County

The valleys here are underlain mostly by limestone and dolomite. USDA soil series descriptions for the region's common upland soils tell the story. Dewey soils are red clay weathered from limestone, with bedrock usually more than five feet down, and some areas have sinks and depressions. Fullerton soils formed in cherty limestone and carry 10 to 45 percent chert gravel and cobbles in individual layers. Talbott soils are firm, plastic clay with limestone bedrock 20 to 40 inches below the surface, and the USDA notes karst topography in some areas. Any of the three can show up on one subdivision.

What that means for a dig

• Rock can appear without warning. A footing that goes smoothly on one corner can hit a limestone pinnacle on the next. We price rock as a separate line so you know what changes if we meet it.
• Red clay holds water. When it is wet it is slick, heavy and slow to compact. When it dries it can crack and shrink. Backfill is placed in thin, compacted lifts.
• Chert dulls equipment and sorts poorly. Cherty fill is fine for some uses and wrong for others. We tell you which spoil can stay and which should go.

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Sinkholes and water

Tennessee is listed among the states with the most sinkhole damage, alongside Florida, Texas, Alabama, Missouri, Kentucky and Pennsylvania. New collapses often start when people change how water drains in karst ground: ditching, pipeline trenches, roof and driveway runoff and new ponds all speed water downward. So we never point a downspout line, French drain or swale into a depression or an open throat in the rock. If a low spot in your yard looks like a sink, we stop and talk about it before any water goes near it.

Rain, not snow, sets the schedule

Knoxville averages just under 52 inches of precipitation a year and only about 4.6 inches of snow. January's average low is around 30 degrees, so frozen ground rarely stops a machine for long. Long wet spells are the bigger problem, because saturated clay ruts, will not compact and turns a job site into mud. We plan grading and driveway work for drier stretches and keep silt fence and stone at entrances so clay stays out of the street.

Neighborhoods of every age

Knoxville's housing runs from late-19th-century Victorians and Craftsman bungalows in Fourth and Gill, Parkridge and Fort Sanders, through 1920s and 1930s Tudor Revival homes in Sequoyah Hills and Lindbergh Forest, to the Ranch houses that fill the postwar neighborhoods. Older homes bring clay sewer laterals, settled grading and tight access. Newer subdivisions bring cut-and-fill lots where the back of the yard may be fill placed decades ago.

What a typical project looks like

• Free visit to look at the slope, drainage and access
• Written, itemized estimate
• Tennessee 811 locate request and any required permits
• Silt fence and a stone entrance where needed
• Excavation, with topsoil stockpiled apart from clay
• Compacted backfill and a grade that drains away from the house
• Hauling, seed and straw or other restoration as quoted

We work throughout Knoxville and Knox County, from Powell, Halls and Corryton in the north to Farragut and Hardin Valley in the west, and into Blount, Anderson, Loudon and Sevier counties. North of the city, communities like Powell, Karns and Halls sit in the Beaver Creek valley between Beaver Ridge and Copper Ridge. To the south, Maryville, Alcoa and Seymour climb toward Chilhowee Mountain and the Smokies foothills. West and southwest, Farragut, Lenoir City and Loudon slope down to Fort Loudoun Lake and the Tennessee River, while Oak Ridge, Clinton and Norris follow the Clinch. Each town page covers the ridges, creeks, housing and local quirks that matter for a dig there.