Why is proper grading important?

Proper grading ensures water drains away from structures and prevents pooling, which can damage pavement and cause premature failure.

How deep should excavation be for a parking lot?

Typically 8-12 inches for standard parking lots, but depth varies based on soil conditions, expected traffic, and local requirements.

What is a subbase and why is it needed?

The subbase is a layer of aggregate that provides stability, drainage, and frost protection. It's essential for long-lasting pavement.

What's included in professional grading and drainage services?

Comprehensive grading and drainage services include site assessment and water flow analysis, topographic surveying and design planning, soil testing and excavation as needed, precision grading to proper slopes (typically 2% away from structures), French drain or surface drain installation, catch basin and outlet systems, proper backfilling and compaction, erosion control and stabilization measures, and final seeding or landscape restoration. We address both immediate water problems and long-term site functionality with integrated solutions.

How long does a typical grading and drainage project take?

Project timeline depends on scope and complexity: simple grading corrections take 1-2 days, moderate drainage installations require 3-5 days, comprehensive site regrading needs 1-2 weeks, and complex systems with multiple drainage components can take 2-3 weeks. Weather conditions, permit requirements, and soil conditions affect scheduling. We provide detailed timelines during the planning phase and keep projects on track through careful coordination.

What are the signs that I need grading and drainage work?

Key indicators include standing water after rain, wet or soggy areas that won't dry, water pooling near foundations, basement moisture or flooding, erosion channels or washouts, uneven or unstable ground surfaces, difficulty using outdoor spaces after rain, and plant stress from too much or too little water. Early intervention prevents more serious problems like foundation damage, landscape loss, and structural issues.

How do you determine the proper slope for effective drainage?

Proper slope calculation considers multiple factors: standard 2% grade (1/4 inch per foot) away from structures for general drainage, steeper slopes for rapid water removal in problem areas, gentler slopes where erosion control is critical, soil type and permeability rates, existing topography and natural flow patterns, and local code requirements. We use laser transit equipment to achieve precise grades and verify proper water flow before project completion.

What's the difference between surface and subsurface drainage?

Surface drainage manages water through grading, swales, and channels that direct runoff away from problem areas. Subsurface drainage uses buried pipes, French drains, and collection systems to intercept groundwater and remove excess soil moisture. Most effective solutions combine both approaches: surface grading for immediate runoff control and subsurface systems for persistent wet soil conditions. The choice depends on water sources, soil type, and specific site challenges.

Excavation & Grading in Johnson City, TN

Name: Hyder Paving Company
Rating: 5

Professional excavation & grading services throughout the Tri-Cities area. Expert installation, repair, and maintenance with 50+ years of experience serving East Tennessee communities.

Licensed & Insured•50+ Years Experience•Call (423) 589-1112

What is Excavation & Grading?

Transform your property with expert grading and drainage services that prevent water damage, eliminate pooling, and create functional outdoor spaces. Our integrated approach combines precision earthwork with effective water management systems to protect your investment and enhance your property's value.

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