In addition to these cars consigned to the Mason & Hanger Company the transportation department unloaded hundreds of cars consigned to the DuPont Engineering Company. Perhaps as high a tribute as can be paid to the efficiency of the organization is to recite the fact that in all this rush of shipment only two cars failed to reach their proper destination promptly.

The transportation department employed on the average about 200 men--clerks, team and truck drivers, lumber checkers. It used from 65 to 70 trucks varying from two to five tons in capacity, and from 75 to 80 teams.

Construction work on the water supply and sewerage system was begun on May 18, and was 99.5 per cent completed on the day that the Armistice was signed. The water supply system included 22.43 miles of pipes with 227 fire hydrants. During the early stages temporary water lines were laid for both construction and drinking purposes. Pumps were installed at springs on the reservation to provide a temporary supply. For the permanent system water was secured from the Cumberland River from which it was brought in through a filter plant.

The sewerage system comprised 50.5 miles of pipe with 543 man-holes. The work of laying pipes began March 28. The system was in operation, completed except for the backfilling of a few ditches, when the Armistice was signed. On account of differences in levels two sewerage pumping stations were required. The sewerage was carried through an Imhoff septic tank in the lowlands west of the village. In the construction of the sewerage ditches both trenching machines and backfillers were used, though as in the case of water lines it was necessary to excavate and backfill certain of the sewerage ditches by hand.

In addition to the sewer plant in the village the Mason & Hanger Company laid 10.34 miles of sewer or acid lines in the plant area. The main concrete work done by the concrete department of the Mason & Hanger Company consisted of the following jobs:

1. Concrete roads in both the plant and village area.
2. Foundation, including the hand excavations for buildings in the gun cotton area, such as for the wringer houses, poacher houses, boiling tip houses, etc.
3. Scattered concrete work in the powder area, including excavation and brick work, and also assistance rendered the DuPont Engineering Company on some pipe work which they were building.
4. Concrete piers at the Stoner Creek bridge, including coffer dams and the trestles' approaches.
5. Concrete for the tower foundations and counterweights for the suspension bridge for the Cumberland River at Edenwold, and including the long trestle approaches at both ends as well as the 800 foot platform adjacent to the tracks of the Louisville and Nashville R. R. Company at that point.
6. Coal and sulphur trestles numbers 1 and 2, the former being about 1,200 feet in length while the latter was 1,000 feet in length.
7. The sewerage disposal settling tank heretofore mentioned as the Imhoff Tank, and for which about 200 cubic yards of reinforcing concrete were laid.
8. Foundations for buildings in the camp and village area, such as the village reservoir, sewerage pumping station, village heating plant, etc.
9. Miscellaneous jobs in the camp and village area, such as the village reservoir, tennis courts, foundations for tanks and machinery, concrete work in the wash rooms of various buildings, and in the wash houses, as well as for the wash rooms of the one story block apartment buildings, etc.
10. Foundations for buildings in the proving grounds.

The total yardage of concrete poured aggregated about 56,588 cubic yards, sub-divided about as follows:

• concrete roads in the plant, 7,827;
• concrete roads in the village, 8,460;
• concrete in the gun cotton area, 17,626;
• concrete in the powder area, 8,031;
• concrete in the village area, 11,896;
• piers at the Stoner Creek bridge, 580;
• for the suspension bridge, 1,800.