Nassau County, FL Contractor directory

Excavation contractors in Nassau County, FL

16 verified excavating and site work contractors serving Nassau County.

County excavation guide

Ground conditions and project requirements in Nassau County

Use this local research to understand soil, seasonal constraints, permits, and jobsite logistics before choosing a contractor.

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Soil Regime ProfileEPA Ecoregion 75, 74 (Southern Coastal Plain, Florida Peninsula)

Florida Peninsular Flatwoods Sand

Dominant Soil Order: Spodosols / Entisols
Parent Material: Pliocene-Pleistocene Marine Terrace Sand over Phosphate-Bearing Clayey Substratum

Florida's peninsular flatwoods are defined by deep, rapidly draining fine sands (Astatula, Tavares, Apopka series) over a spodic or clayey substratum, with seasonal water tables perched 1 to 3 feet below grade during the June-September wet season. Excavation is fast and low-cost in the upper sand profile, high production trenching with minimal rock. The tradeoffs are trench stability and water: cohesionless fine sand sidewalls collapse without benching, sloping, or trench boxes, and perched water tables require sump dewatering or well points for anything below 4 feet. Stormwater retention and detention pond excavation dominates site work; sand spoil is easy to move but must be kept clear of the pond floor where muck or spodic layers are hit. Phosphate-bearing clay strata common in the central ridge (Polk, Hillsborough) can slow production and hold water above the pit floor. Haul road traffic on saturated sugar sand demands tracked dozers and matting for cranes and concrete trucks.

Geographic Footprint:Central and South Florida peninsula: Orlando, Tampa, Polk, Lee, Collier, Palm Beach metro flatwoods
Geotechnical Baseline

Physical Ground Conditions & Soil Properties

Shallow Bedrock (<50 in)
0.0%of county land area

Deep soil mantle; rock refusal rare for standard basement or trench cuts.

High Shrink-Swell Clay
7.8%expansive soil

Low volumetric expansion risk in native subgrade.

Median Water Table Depth
12inches from surface

Shallow water table; active dewatering or sumps needed for deep trenching.

Hydric / Wetland Soils
50.4%hydric coverage

Indicates poor natural drainage and potential jurisdictional wetland pockets.

Steep Terrain (Slope >15%)
0.1%of terrain

Predominantly gentle to rolling slopes suitable for wheeled earthmoving.

Septic Severe Limitations
92.5%severe rate

High rate of conventional drainfield limitations; engineered or drip systems often required.

Dominant Soil Textures:Fine sandLoamy fine sandClay
Surface Stones / Boulders: 1.2% coverage
Supply Chain & Hazards

Logistics, Aggregate Sources & Geohazards

Aggregate & Material Supply
Hortense Sand Mine

Nearest active quarry: 53.6 miles haul distance.(0 active crushed stone/sand operations within 50 miles).

Flood & Hazard Overlay

Area-specific FAQ

Do I need to call before digging in Nassau County?

Yes. You should contact Sunshine State 811 at least 2 working days before any digging so underground lines can be marked.

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Excavation contractors serving Nassau County

16 verified listings