The anchor bars were placed for 40 lin. ft. of sewer, or about 1,504 lbs. of metal at a cost of 0.4 ct. per lb.
The concreting gang for the sides consisted of:
| 5 men wheeling and mixing at $1.75 | $8.75 |
| 1 man tamping | 1.75 |
| ⅔ time man lowering brick and concrete at $2.25 | 1.50 |
| 1 man carrying concrete | 1.75 |
| ——— | |
| $13.75 |
This gang built the side wall for 40 ft. of sewer daily, or 13 cu. yds. Cost of labor per cu. yd. was, therefore, $1.06. The concrete was tamped behind the brick lining as the latter was built up by the mason.
Cost of single ring brick lining at sides:
| 2 masons at 70 cents per hour | $1.20 |
| 1 man mixing mortar | 2.25 |
| ⅓ time man lowering at $2.25 | 0.75 |
| 3 men wheeling sand, filling buckets and dumping | 5.25 |
| ——— | |
| Total labor for 40 lin. ft. of sewer | $19.45 |
| Quantity of brick masonry laid, cu. yd. | 6.38 |
| Labor per cu. yd. | 3.05 |
An account was kept of labor performed on 85 lin. ft. of arch work, or 14 1-6 ft. daily. The force was as follows:
| 1 man putting mortar lining on centering | $1.75 |
| 2 men mixing mortar, screening and wheeling sand | 3.50 |
| 1 man tamping concrete | 1.75 |
| 8 men on mixing board at $1.75 | 14.00 |
| ——— | |
| $21.00 | |
| No. cu. yd. placed daily | 25.64 |
| Labor per cu. yd. | 0.82 |
| Placing centering and arch bars: | |
| 2 men at $1.75 | $3.50 |
| 1 man at $3.50 | 3.50 |
| —— | |
| $7.00 |
Costs, for 14 1-6 ft. daily, $0.49 per lin. ft.
As nearly as could be judged, about two-thirds of the labor was used in erecting the centering and one-third in putting the steel in place. The amount of steel placed daily was 785 lbs., at cost, therefore, of 0.3 of a cent per lb., and the cost of erecting and moving centers, $0.33 per lin. ft. of arch.