Excavation contractor jobsite in Grimes County, TX

Grimes County, TX Contractor directory

Excavation contractors in Grimes County, TX

11 verified excavating and site work contractors serving Grimes County.

County excavation guide

Ground conditions and project requirements in Grimes 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 33 (East Central Texas Plains)

Post Oak Savannah Claypan & Loamy Uplands

Dominant Soil Order: Alfisols / Vertisols / Entisols
Parent Material: Tertiary Sandy and Clayey Coastal Plain Sediments over Dense Claypan Subsoils

The Post Oak Savannah has an abrupt texture change: loose sandy loam over a dense, slowly permeable claypan. SSURGO mapping shows Gladewater, Hearne, Weswood, and Zack series in the mapped area, with Alfisols, Vertisols, and Entisols. The thin sandy crust gives way to saturated, soupy clay, and equipment can rut and sink through it. Water perches above the claypan in wet seasons, so pad cuts take on water after rain. Clay swells in wet months and cracks when dry, so the cracks open and close with the seasons. Brazos River floodplain sites lie in low ground that floods. Oak and pine root zones lie in the topsoil and hold roots and debris. Tertiary sandy and clayey coastal plain sediments make up the parent material.

Geographic Footprint:Texas post oak claypan counties: Brazos, Burleson, Grimes, Leon, Madison, Robertson
Geotechnical Baseline

Physical Ground Conditions & Soil Properties

Shallow Bedrock (<50 in)
20.2%of county land area

Moderate rock encounters along ridges and upper slope shoulders.

High Shrink-Swell Clay
16.4%expansive soil

Moderate shrink-swell; verify plasticity index on structural fill.

Median Water Table Depth
24inches from surface

Moderate depth; seasonal wet perched water tables possible in spring.

Hydric / Wetland Soils
2.9%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
72.0%severe rate

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

Dominant Soil Textures:Fine sandy loamLoamy fine sandClay
Surface Stones / Boulders: 12.4% coverage
Compliance & Permitting

Earthwork Regulations & Permit Thresholds

Stormwater & Erosion Control
TCEQ Construction General Permit TXR150000 (Notice of Intent required ≥1 acre; SWPPP required)

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

State Threshold:1.00 Acre
Local Threshold:Follows state
Grading Permit: No separate county grading permit
Onsite Wastewater & Utilities
Grimes County permitting authority / TCEQ Region Office

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

Housing on Septic:55.0%
Soil Evaluation:Site evaluation by licensed site evaluator; system design per 30 TAC Chapter 285 (soil analysis, absorption capacity)
811 One-Call Requirements
Texas 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 Texas.
Burn Permit Season: Outdoor burning allowed sunrise–sunset except TCEQ-declared high-pollution-advisory days; county burn bans common Jun–SepAuthority: TCEQ outdoor burning rules (30 TAC 111) + county burn bans by Commissioners Court
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
May, October

Peak precipitation window requiring sediment traps and soil aeration.

Supply Chain & Hazards

Logistics, Aggregate Sources & Geohazards

Aggregate & Material Supply
Scarmardo Pit

Nearest active quarry: 20.6 miles haul distance.(18 active crushed stone/sand operations within 50 miles).

Flood & Hazard Overlay
FEMA 100-Yr Flood:22.3%(100% NFHL digital map coverage)
NWI Wetlands:6.3%jurisdictional coverage
Karst Terrain & Sinkhole Risk: Low

0.0% of county underlain by soluble carbonate rock formations.

HUC8 Primary Watersheds:West Fork San Jacinto, Spring, Lower Brazos-Little Brazos, Navasota
Public conservation land: 3.9% (USGS PAD-US).

Area-specific FAQ

Do I need to call before digging in Grimes County?

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

How deep do footings need to be in Texas?

In Texas, footings typically need to extend below the frost line, which is around 12 inches here. A local contractor will confirm the code requirement for your site.

Verified local listings

Excavation contractors serving Grimes County

11 verified listings

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