Excavation contractor jobsite in Collier County, FL

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Collier County, FL Contractor directory

Excavation contractors in Collier County, FL

49 verified excavating and site work contractors serving Collier County.

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County excavation guide

Ground conditions and project requirements in Collier 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), 77 (Florida Peninsula)

Southwest Florida Limestone Flatwoods & Malabar Sand

Dominant Soil Order: Alfisols / Entisols / Spodosols
Parent Material: Pleistocene Marine Sand over Miocene Limestone, with Limestone Solution Features and Organic Stained Flatwoods

Southwest Florida's flatwoods are level, poorly drained sands over limestone. SSURGO mapping shows Urban land as the largest map unit in several counties, with Malabar, Riviera, Holopaw, Oldsmar, and Felda series also mapped across Charlotte, Collier, DeSoto, Hendry, Lee, and Sarasota. The sand digs and loads easily, but the water table sits near the surface much of the year, so deep trenches fill with water. Limestone solution pits and near-surface limestone show up in footings and utility lines, and digging is hard where the limestone is high. Wet sands rut easily under wheel loads. Wet, loose sand slumps when cut, so trench walls cave without support. Where urban land is mapped, the surface may include built ground and buried materials. Sandy soils drain quickly, so rain soaks in on the sand, while low spots hold water after rain. Sand under a high water table cuts unevenly, so trench depth and wall stability change along a single trench.

Geographic Footprint:Southwest Florida flatwoods (Charlotte, Collier, DeSoto, Hendry, Lee, Sarasota)
Geotechnical Baseline

Physical Ground Conditions & Soil Properties

Shallow Bedrock (<50 in)
37.0%of county land area

High likelihood of bedrock refusal; hammer / ripper required for deep utilities.

High Shrink-Swell Clay
0.0%expansive soil

Low volumetric expansion risk in native subgrade.

Median Water Table Depth
6inches from surface

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

Hydric / Wetland Soils
64.2%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
89.3%severe rate

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

Dominant Soil Textures:Fine sandFine sandy loamSilt loam
Surface Stones / Boulders: 0.0% 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 Collier County

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

Housing on Septic:35.0%
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
Golden Gate Quarry

Nearest active quarry: 4.9 miles haul distance.(13 active crushed stone/sand operations within 50 miles).

Flood & Hazard Overlay
FEMA 100-Yr Flood:56.5%(100% NFHL digital map coverage)
NWI Wetlands:71.8%jurisdictional coverage
Karst Terrain & Sinkhole Risk: Low

63.1% of county underlain by soluble carbonate rock formations.

HUC8 Primary Watersheds:Big Cypress Swamp, Caloosahatchee, Charlotte Harbor
Public conservation land: 71.5% (USGS PAD-US).

Area-specific FAQ

Do I need to call before digging in Collier 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 Collier County

49 verified listings (showing first 20)

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