| Per cu. yd. | |
| 142 lbs. steel at 2½ cts. | $ 3.55 |
| 1 bbl. cement | 2.50 |
| 1 cu. yd. gravel | 1.10 |
| ½ cu. yd. sand | 0.55 |
| 170 ft. B. M. lumber ready to erect at $10 (⅓ of $30) | 1.70 |
| 170 ft. B. M. torn down at $2 | 0.35 |
| 170 ft. B. M. erected by carpenters at $7 | 1.20 |
| Mixing and placing concrete | 1.00 |
| Shaping and placing steel | 0.45 |
| Superintendence | 0.25 |
| ——— | |
| Total | $12.65 |
WALL AND ROOF CONSTRUCTION FOR ONE-STORY CAR BARN.—The barn was 50 ft. wide and 190 ft. long, divided into three rooms by two transverse partitions and covered with a 4-in. roof having a pitch of ½ in. per foot. The main walls were 12 ins. thick and the partition walls 10 ins. thick. The main room 110 ft. long had four car tracks its whole length with pits under each and a 6-in. reinforced concrete floor slab between. The floor girders, one under each rail, were 12 ins. square, each reinforced by three 1¾-in. rods, and were carried on 12×12-in. pillars. The total yardage of concrete was 874 cu. yds. divided as follows:
| Walls and foundations, cu. yds. | 614 |
| Pillars and girders in track pits, cu. yds. | 44 |
| Reinforced floors, cu. yds. | 55 |
| Roof | 160 |
| —— | |
| Total, cu. yds. | 873 |
A 1-2½-5 concrete was used for floors, roofs and girders and a 1-3-6 concrete for foundations and walls. There were 26½ tons of reinforcing steel, or 61 lbs. per cu. yd., or 0.45 per cent. of the volume of the concrete was steel. The wages paid were: Foreman, $2.50; blacksmith, $2; engineer, $1.75; laborers, $1.50; two-horse team and driver, $3.67; one-horse team and driver, $2.92; carpenter, $2.25; carpenters worked 9 hours; all others 10 hours.
Forms.—Carpenters framed and erected forms and common laborers under foreman carpenter took them down. Lagging was all 2-in. stuff and uprights 3×4-in. stuff. Props for roof forms were 18-ft. round timber procured on the job. They were 6 ins. in diameter at the top and cost 50 cts. each, 91 being used. These props are not included in the lumber listed below, but their cost is included in the costs given. No record was kept of the number of times the lumber was used, but as 54,643 ft. B. M. were bought and about twice this much would be needed to enclose the concrete if used only once, we will assume that all lumber was used twice. Including the props there were about 60,000 ft. B. M., or 70 ft. B. M. per cu. yd. of concrete. The cost of the lumber was $1,520.86, and the cost of labor on the forms was $1,660.60, so that the cost of forms was:
| Item. | Per cu. yd. | Per M. ft. | Per sq. ft. |
| Lumber | $1.74 | $13.50 | $0.038 |
| Labor | 1.90 | 14.07 | 0.041 |
| —— | ——— | ——— | |
| Total | $3.64 | $27.57 | $0.079 |
If the lumber had been used only once the cost per cubic yard would have been $5.38, and per M. ft. B. M., $41.07.
Concrete.—A railway track was run the full length of the building upon what was eventually the fourth track of the car barn and a Ransome mixer was set up as close to the track as possible allowing a platform to be built between it and the track. Cars were brought up to this platform and the materials handled by wheelbarrows direct from cars to mixer. Both platform and mixer were moved twice as the work progressed. The concrete was taken by wheelbarrows on runways to the side walls. For the roof it was hoisted by a horse by means of a mast having an arm with a three-quarters swing; the barrows were hoisted direct using a hook for the wheel and two rings for the handles.
The cost of the concrete for materials was:
| 1.1 bbl. cement at $1.21, per cu. yd. | $1.33 |
| ¾ ton sand at 75 cts., per cu. yd. | 0.55 |
| Aggregate, per cu. yd. | 0.88 |
| 61 lbs. steel at 1.9 cts., per cu. yd. | 1.15 |
| Lumber, 70 ft. B. M. at $27, per cu. yd. | 1.74 |
| —— | |
| Total per cu. yd. | $5.65 |