Average Natural Grade Calculation Map

Average Grade Calculation: 1950 Watkiss Way, View Royal BC

Project Information

Address: 1950 Watkiss Way, View Royal BC
Client: Denfor Investments Inc.
Architect: D-Architecture, 6377 Icarus Drive, Nanaimo, BC V9V 1N4
Contact: T: 250-933-1991, E: FIROUZLI@SHAW.CA
Principal: Daryoush Firouzli Architecture Inc.
Date: July 7th 2016
Project No: 2639
Sheet No: A0.1
Scale: N/A

Site plan and technical drawing showing the building footprint, topographic contour lines, spot elevations at corners, and the mathematical formula for calculating the Average Natural Grade.

Average Grade Calculation

The following calculations determine the average natural grade based on the perimeter segments of the building footprint and their respective corner elevations:

Perimeter Segment	Elevation Averaging	Wall Length (m)	Calculated Value
Segment 1	(23.1 + 24.1) / 2	* 19.5	460.2
Segment 2	(24.1 + 21.6) / 2	* 24.7	564.4
Segment 3	(21.6 + 21.8) / 2	* 25.0	542.5
Segment 4	(21.8 + 18.2) / 2	* 19.5	390.0
Segment 5	(18.2 + 17.5) / 2	* 44.5	794.3
Segment 6	(17.5 + 23.1) / 2	* 44.3	899.3

Final Average Natural Grade Calculation:

(460.2 + 564.4 + 542.5 + 390.0 + 794.3 + 899.3) / (19.5 + 24.7 + 25.0 + 19.5 + 44.5 + 44.3) = 20.56 Average Natural Grade

Site Plan Summary

The technical drawing, labeled "Average Natural Grade," provides a detailed layout of the building footprint:

Perimeter Wall Lengths: 19.5m, 24.7m, 25.0m, 19.5m, 44.5m, and 44.3m.
Spot Elevations: *23.1m, *24.1m, *21.6m, *21.8m, *18.2m, and *17.5m.

The calculated result of 20.56 represents the Average Natural Grade for the project site.