Excavation contractor jobsite in Pinellas County, FL

Pinellas County, FL Contractor directory

Excavation contractors in Pinellas County, FL

50 verified excavating and site work contractors serving Pinellas County.

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County excavation guide

Ground conditions and project requirements in Pinellas 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), 74 (Florida Gulf Coast)

Gulf Coast Flatwoods, Hammock & Tidal Marsh Peat

Dominant Soil Order: Spodosols / Entisols / Histosols
Parent Material: Quaternary Marine and Fluvial Sand, Organic Muck in Tidal Marshes, and Limestone Hammock Residuum

The Gulf coast from Pasco to Wakulla is flatwoods, tidal marsh, and limestone hammock. SSURGO mapping shows Blanton, Leon, and Meadowbrook on the flatwoods and Dorovan muck in the tidal marshes. Flatwoods sands are wet for much of the year, so trenches fill with water and wet sands rut under equipment. Tidal marsh peat has very low bearing strength and compresses under load. Hammock sites with limestone close to the surface have rock in the trench lines, and sinkholes can open over shallow limestone. Shallow water tables hold surface water on the flatwoods after rain. Muck in the tidal marshes is organic and soft when wet. Sand on the flatwoods is loose and caves when wet. Tidal marsh peat and muck compress under wheel loads. Shallow limestone in hammocks is hard to dig, which slows trench lines.

Geographic Footprint:Gulf coast (Citrus, Dixie, Franklin, Gulf, Hernando, Levy, Liberty, Manatee, Pasco, Pinellas, Wakulla)
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
0.0%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
8.9%hydric coverage

Indicates poor natural drainage and potential jurisdictional wetland pockets.

Steep Terrain (Slope >15%)
0.0%of terrain

Predominantly gentle to rolling slopes suitable for wheeled earthmoving.

Septic Severe Limitations
61.6%severe rate

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

Dominant Soil Textures:Fine sandSandLoamy fine sand
Surface Stones / Boulders: 13.7% 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 Pinellas 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: 16.8 miles haul distance.(9 active crushed stone/sand operations within 50 miles).

Flood & Hazard Overlay
FEMA 100-Yr Flood:31.1%(100% NFHL digital map coverage)
NWI Wetlands:58.0%jurisdictional coverage
Karst Terrain & Sinkhole Risk: Low

54.3% of county underlain by soluble carbonate rock formations.

HUC8 Primary Watersheds:Tampa Bay, Crystal-Pithlachascotee
Public conservation land: 59.4% (USGS PAD-US).

Area-specific FAQ

Do I need to call before digging in Pinellas 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 Pinellas County

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