Excavation contractor jobsite in Hillsborough County, FL

Hillsborough County, FL Contractor directory

Excavation contractors in Hillsborough County, FL

62 verified excavating and site work contractors serving Hillsborough County.

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County excavation guide

Ground conditions and project requirements in Hillsborough 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 (Southern Coastal Plain), 73 (Mississippi Alluvial Plain edge)

Central Florida Ridge Deep Sand & Sandhill Uplands

Dominant Soil Order: Entisols / Spodosols
Parent Material: Quaternary Marine and Eolian Sand over Miocene Limestone, with Sandhill Ridges

Central Florida's ridges are deep, rapidly draining quartz sand: Astatula, Lake, and Candler series with little clay. Sand digs and loads easily, but it caves when cut below about four feet, so trench walls cave without support. Excavated sand is loose and dries quickly, and dust blows off dry grading surfaces. The ridges drain rapidly, so surface water soaks in rather than pooling, and deep water tables sit well below grade. Sinkholes can open where limestone lies under the sand. Deep sand holds little clay, so it has little cohesion when cut, and loose sand moves easily under wheel loads. Sinkholes and limestone are both present in this unit, so cuts can meet voids where the sand is thin. Dry sand has no clay to bind it, so loose grains move freely when disturbed.

Geographic Footprint:Central Florida ridge (Hardee, Highlands, Hillsborough, Lake, Marion, Orange, Polk, Seminole, Sumter)
Geotechnical Baseline

Physical Ground Conditions & Soil Properties

Shallow Bedrock (<50 in)
0.2%of county land area

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

High Shrink-Swell Clay
0.9%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
26.9%hydric coverage

Indicates poor natural drainage and potential jurisdictional wetland pockets.

Steep Terrain (Slope >15%)
1.8%of terrain

Predominantly gentle to rolling slopes suitable for wheeled earthmoving.

Septic Severe Limitations
76.0%severe rate

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

Dominant Soil Textures:Fine sandSandy loamLoamy fine sand
Surface Stones / Boulders: 2.8% coverage
Compliance & Permitting

Earthwork Regulations & Permit Thresholds

Stormwater & Erosion Control
FDEP NPDES Generic Permit for Stormwater Discharge from Large and Small Construction Activities (62-621.200(4)(b) F.A.C.; >1 acre)

Administers NPDES stormwater discharge coverage for land-disturbing construction activities.

State Threshold:1.00 Acre
Local Threshold:Follows state
Grading Permit: Required locally
Onsite Wastewater & Utilities
Florida Department of Health in Hillsborough County

Jurisdiction over septic tank permits, soil evaluation perk tests, and drainfield sizing.

Housing on Septic:10.0%
Soil Evaluation:Soil evaluation by FDOH-licensed septic contractor; percolation test per 64E-6 F.A.C.
Access Septic Permitting Portal →
811 One-Call Requirements
Sunshine 811

Mandatory notice window: 48 hours prior to mechanized earthwork (excluding weekends and legal holidays).

Licensing & Clearing Permits
Contractor License Threshold: Required for earthwork contracts exceeding $0 in Florida.
Burn Permit Season: Pile burns permitted 8:00–11:00 AM CT daily with daily authorization; May–Jul high wildfire-danger bans commonAuthority: Florida Forest Service (FDACS) — county-by-county authorization
Weather & Ecology

Seasonal Constraints & Clearing Windows

Design Frost Depth
0inches

Building code minimum depth for footing frost protection.

Frozen Ground Days
0days / year

Typical days with sub-freezing soil conditions affecting digging.

Wet Season Months
June, July, August, September

Peak precipitation window requiring sediment traps and soil aeration.

Supply Chain & Hazards

Logistics, Aggregate Sources & Geohazards

Aggregate & Material Supply
Tampa Plant

Nearest active quarry: 3.8 miles haul distance.(20 active crushed stone/sand operations within 50 miles).

Flood & Hazard Overlay
FEMA 100-Yr Flood:34.8%(100% NFHL digital map coverage)
NWI Wetlands:49.0%jurisdictional coverage
Karst Terrain & Sinkhole Risk: Low

83.7% of county underlain by soluble carbonate rock formations.

HUC8 Primary Watersheds:Tampa Bay, Crystal-Pithlachascotee, Little Manatee, Alafia, Hillsborough
Public conservation land: 18.1% (USGS PAD-US).

Area-specific FAQ

Do I need to call before digging in Hillsborough County?

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

Verified local listings

Excavation contractors serving Hillsborough County

62 verified listings (showing first 20)

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