EXCAVATION
2. In calculating the cubic yards of earth excavated for the cellar, all measurements are taken from the foundation plan and the sections. The plan is blocked out as shown in the accompanying Cellar Plan, and the area of each block found; then, by multiplying the sum of these partial areas by the depth of the cellar, the cubic contents is determined. The trenches for the foundation walls of porches and for the footings of cellar walls are calculated separately, as also are the excavations for piers, drains, cesspools, area, etc.
Cellar Excavation
| Square Feet | Cubic Feet | ||
|---|---|---|---|
| Quantities | |||
| Block A, 23' 4" × 16' 4" | 381.0 | ||
| Block B, 14' 6" × 20' 10" | 302.0 | ||
| Deduct 4" × 3' 0" | 1.0 | ||
| Add for projection of wall, (13' 6" + 7') ÷ 2 × 3' = | 30.8 | 331.8 | |
| Block C, 27' 6" × 17' 5" | 479.0 | ||
| Deduct for breaks in wall, 1' 7" × 6' 8" and 2' 6" × 3' | 18.0 | 461.0 | |
| Block D, 26' 6" × 10' 5½" | 277.2 | ||
| Block E, 16' 8" × 11' 6½" | 192.4 | ||
| Deduct for breaks in wall, 6' 6" × 1' 11" and 3' × 5" | 13.7 | 178.7 | |
| [2] Block F, 9' 10" × 9' 7½" ÷ 2 | 47.3 | ||
| [3] Block G, 14' × 14' × .7854 ÷ 2 | 77.0 | ||
| Deduct for portion of semicircular part, | |||
| included in F, 12" × 14' approximately | 14.0 | 63.0 | |
| Total area of excavation | 1,740.0 | ||
| Contents, 1,740 sq. ft. × 6.5 ft. (depth) | 11,311.0 | ||
Excavation for Wall Footings [4]
| Square Feet | Cubic Feet | ||
|---|---|---|---|
| Quantities | |||
| a b, 26' × 2' 6" | 65.0 | ||
| b c, 5' 6" × 3' | 16.5 | ||
| c d, 9' 9" × 2' 6" | 24.4 | ||
| d e, 17' 6" × 2' 6" | 43.7 | ||
| e f, 27' 4" × 2' 6" | 68.3 | ||
| f g, 9' 2" × 3' 8" | 33.6 | ||
| g h, 21' × 2' 6" | 52.5 | ||
| i j, 27' 7" × 2' 6" | 69.0 | ||
| j a, 31' × 2' 6" | 77.5 | ||
| k l, 20' 2" × 2' 6" | 50.4 | ||
| Chimney, 12' 6" × 4' (approximately) | 50 | ||
| Deductions | 10.4 | 39.6 | |
| q r, 16' 4" × 1' 10" | 29.9 | ||
| r s, 9' 2" × 1' 10" | 16.8 | ||
| m n (less openings), 7' 9" × 2' 6" | 19.4 | ||
| o p, 20' × 1' 10" | 36.7 | ||
| Total area of excavation for footings | 643.3 | ||
| Contents, 643.3 sq. ft. × 10 in. (.833 ft.) depth | 535.9 | ||
Miscellaneous Excavations [5]
| Cubic Feet | ||
|---|---|---|
| Quantities | ||
| Front porch, 69' 9" × 2' 3" × 3' | 470.8 | |
| Back porch, 24' × 2' 4" × 3' | 168.0 | |
| Piers for steps, 1' 8" × 2' × 3' × 2 | 20.0 | |
| Piers for side steps and back porch, 2' × 2' × 3' × 4 | 48.0 | |
| Cellar area, 5' 9" × 6' 4" × 6' 6" | 236.7 | |
| Deduct 2' × 3' × 6' 6" | 39.0 | 197.7 |
| Dry cesspool, 6 ft. diameter × 6 ft. depth | 169.6 | |
| Cesspool, 6 ft. diameter × 8 ft. depth | 226.2 | |
| Trench for pipe to cesspool, 25' × 7' 6" × 2' | 375.0 | |
| Trench for drain pipes (roof drainage), 228' × 3' × 1' | 684.0 | |
| Trench for drain pipes from junction to dry cesspool, | ||
| 20' × 3' × 18" | 90.0 | |
| Total | 2,449.3 | |
| Grand total of excavation | 14,296.2 |
Filling
| Cubic Feet | |
|---|---|
| Quantities | |
| Around foundation walls, 181' 2" × 6" × 6' 6" | 588.8 |
| Around foundation of porches, etc., 142' 3" × 6" × 3' | 213.4 |
| Total filling | 802.2 |
Cost
The cost of excavation in sandy soil, taken from Estimating and Calculating Quantities, Part 1, is 53 cents per cubic yard. The cost of filling, including tamping, may be taken as about one-third that of excavation, or, say, 18 cents per cubic yard.
Summary
| Excavation, 14,296.2 cu. ft. = 529.5 cu. yd., | |
| at 53 cents per cubic yard | $280.64 |
| Filling, 802.2 cu. ft. = 29.7 cu. yd., | |
| at 18 cents per cubic yard | 5.35 |
| Total cost of excavation and filling | $285.99 |