Excavation Contractors Norwich
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Frequently Asked Questions About Excavation Contractors
Find answers to common questions about excavation contractors and hiring excavation professionals in the USA.
- Sloped Property: Your property has a significant slope, making it prone to soil erosion or landslides.
- Creating Usable Space: You want to level off a sloped area to create a flat surface for patios, gardens, or other outdoor spaces.
- Preventing Damage: Erosion is threatening existing structures, driveways, or walkways.
- Landscaping Features: You're incorporating tiered gardens, raised beds, or other landscaping elements requiring soil retention.
- Soil Type and Stability: Stable, cohesive soils allow for deeper excavations than loose or unstable soils.
- Groundwater Level: Excavations below the water table require dewatering techniques to manage water intrusion.
- Equipment and Resources: The size and capabilities of excavation equipment influence the achievable depth.
- Safety Regulations: OSHA and other safety regulations impose limitations on trench depths without proper shoring or sloping.
- Project Requirements: The purpose of the excavation (basement, pool, foundation) determines the necessary depth.
- Determine the Area: Measure the length and width of the area you want to fill. Multiply them to get the area in square feet (or meters).
- Determine the Depth: Measure the difference between the existing grade and the desired grade (how much you need to raise the ground). This is the depth of fill required.
- Calculate Volume: Multiply the area (step 1) by the depth (step 2) to get the volume in cubic feet (or meters).
- Account for Compaction: Fill dirt compacts when it settles, so add 10% to 25% to the calculated volume to account for compaction. The exact percentage depends on the type of fill material.
How do I know if I need a retaining wall?
Retaining walls are structures designed to hold back soil or rock and prevent erosion on sloped terrain. You might need a retaining wall if:
How deep can you excavate?
The depth of excavation achievable depends on multiple factors:
What is the difference between cut and fill excavation?
Cut and fill excavation is a technique for balancing earthwork volumes on a site:
Cut: Involves excavating soil from an area where the existing grade is higher than the desired grade.
Fill: Refers to using the excavated soil ('cut' material) to raise the grade in an area where the existing grade is lower than desired.
This method minimizes the need to import or export soil, reducing costs and environmental impact. It's commonly used for site preparation, road construction, and landscaping.
Cut: Involves excavating soil from an area where the existing grade is higher than the desired grade.
Fill: Refers to using the excavated soil ('cut' material) to raise the grade in an area where the existing grade is lower than desired.
This method minimizes the need to import or export soil, reducing costs and environmental impact. It's commonly used for site preparation, road construction, and landscaping.
How do I calculate how much dirt I need for fill?
To calculate the volume of dirt (fill) needed, follow these steps:
How do I know if I need a retaining wall?
Retaining walls are structures designed to hold back soil or rock and prevent erosion on sloped terrain. You might need a retaining wall if:
- Sloped Property: Your property has a significant slope, making it prone to soil erosion or landslides.
- Creating Usable Space: You want to level off a sloped area to create a flat surface for patios, gardens, or other outdoor spaces.
- Preventing Damage: Erosion is threatening existing structures, driveways, or walkways.
- Landscaping Features: You're incorporating tiered gardens, raised beds, or other landscaping elements requiring soil retention.
How deep can you excavate?
The depth of excavation achievable depends on multiple factors:
- Soil Type and Stability: Stable, cohesive soils allow for deeper excavations than loose or unstable soils.
- Groundwater Level: Excavations below the water table require dewatering techniques to manage water intrusion.
- Equipment and Resources: The size and capabilities of excavation equipment influence the achievable depth.
- Safety Regulations: OSHA and other safety regulations impose limitations on trench depths without proper shoring or sloping.
- Project Requirements: The purpose of the excavation (basement, pool, foundation) determines the necessary depth.
What is the difference between cut and fill excavation?
Cut and fill excavation is a technique for balancing earthwork volumes on a site:
Cut: Involves excavating soil from an area where the existing grade is higher than the desired grade.
Fill: Refers to using the excavated soil ('cut' material) to raise the grade in an area where the existing grade is lower than desired.
This method minimizes the need to import or export soil, reducing costs and environmental impact. It's commonly used for site preparation, road construction, and landscaping.
Cut: Involves excavating soil from an area where the existing grade is higher than the desired grade.
Fill: Refers to using the excavated soil ('cut' material) to raise the grade in an area where the existing grade is lower than desired.
This method minimizes the need to import or export soil, reducing costs and environmental impact. It's commonly used for site preparation, road construction, and landscaping.
How do I calculate how much dirt I need for fill?
To calculate the volume of dirt (fill) needed, follow these steps:
- Determine the Area: Measure the length and width of the area you want to fill. Multiply them to get the area in square feet (or meters).
- Determine the Depth: Measure the difference between the existing grade and the desired grade (how much you need to raise the ground). This is the depth of fill required.
- Calculate Volume: Multiply the area (step 1) by the depth (step 2) to get the volume in cubic feet (or meters).
- Account for Compaction: Fill dirt compacts when it settles, so add 10% to 25% to the calculated volume to account for compaction. The exact percentage depends on the type of fill material.