Excavation The mechanical or manual digging and removal of soil, old pavement, or debris from a site to prepare the ground for construction.
Proper excavation is the critical foundation of any long-lasting sidewalk repair. Contractors must dig down to the precise depth required for the new subbase and concrete thickness. In NYC, excavation must be performed with extreme care to avoid damaging buried gas lines, electrical conduits, or protected city tree roots.
Frequently Asked Questions About Excavation
What does excavation involve in sidewalk work?
Digging out and removing soil, old pavement and debris to the depth required for the new base and concrete thickness.
Why does excavation depth matter?
Too shallow and there is no room for a proper base and full slab thickness. Too deep and extra fill must be placed and compacted.
What hazards exist when excavating in NYC?
Buried gas, electric, water and telecom lines, plus protected City tree roots. Utility markout through New York 811 is required.
Is a separate permit needed?
Excavation below the surface may require a Street Opening Permit in addition to the Sidewalk Construction Permit.