The manufacturing of final grading is now a growing business, especially in Edmonton Alberta Canada. Many companies, such as FinalGradeEdmonton.com, are now competing to help land owners through the entire grading process. This last step in grading consists of two main aspects; the approval from the city, and the actual technicalities of the manufacture.
In Edmonton, the owner is supposed to get final grading within a year from obtaining rough grading approval. Rough grade should be raised to final grade before the owner starts planning other decorative materials. And if for any reason the owner did not obtain a rough grade approval then he or she is accountant for exactly simulating the approved engineering drawings.
Now how does one collect an approval for final grading?
First, the applicant has to get a “lot grading certificate” by getting the desired lot surveyed by someone entitled like a professional engineer, architect, or simply a surveyor. Then submitting this certificate electronically to “drainage service” and setting a contact method (mail – e.mail – fax).
Next step, if the lot’s certificate matched the plan and what the visual field inspector saw on reviewing the lot, the applicant receives an approval via the contact method picked earlier, but the city of Edmonton maintains the right to require repairs if any alterations are made to the lot.
After completing the paper work, one should consider the manufacturing of the final grading itself. It’s manufacturing depend on many factors such as the quality of the top soil (the two to eight upper inches of the soil) and the used professional team and equipment. Rough grading involves leveling of the soil to provide slope. The final grading should be tilted enough to keep the drainage away from buildings but in a gradual way to allow repairs or other outdoor activities.
Usually grading begins with the subsoil (layer below top soil) before the top soil is removed, but top soil can be used instead if it wasn’t stockpiled in construction work. the subsoil should be conveyed according to the desired contour but lower to work with the additional top soil layers. The subsoil should be straight to prevent water accumulations. Many use bulldozers in grading but it causes the soil to compact, so many professionals recommend using skid steer instead.
When the desired subsoil level is established, the top soil layer can be removed. And the subsoil is supposed to be evened to a level previously planned and marked. Some additions may be used, like sand for instance is sometimes used to improve the clay soil. Organic matter can be added as well, according to the amount needed by the soil (one can know the exact amount needed by soil test report for turf establishment). The amount of fertilizers and lime needed by the soil are also determined according to a soil test.
Then comes the final grading, the stage after rough grading, which includes soil preparing for seeding or sodding. In this stage the soil is smoothed, firmed, and freed from stones.The cost consists of two parts; companies such as FinalGradeEdmonton.com charge an average of 65 cents per square feet -These companies would even calculate an estimate cost if the costumer sent them a plan a for the area he or she wants to final grade, the other part is the 130 $ for single or semi-detached housings that the city require for inspection.