==========================+===============================+============
| SOUTH RESERVOIR. | _OBISPADO RESERVOIR._
+--------+-------------+--------+------------
| | Quantities, | | Quantities,
| No. | in cubic | No. | in cubic
| | meters. | | meters.
--------------------------+--------+-------------+--------+------------
_Earthwork:_ | | | |
Total excavation | ... | 34,000 | ... | 56,479
Placed in embankment | ... | 31,500 | ... | 7,255
Placed in spoil banks | ... | 2,500 | ... | 49,224
+--------+-------------+--------+------------
_Concrete:_ | | | |
Columns (including | | | |
foundations) | 135 | 1,240 | 356 | 543
Primary beams | 135 | 440 | 374 | 462
Secondary beams | 670 | 515 | 1,252 | 576
Side-walls | ... | 1,255 | ... | 710
| | | |
| Square | | Square |
| meters.| | meters.|
Roof slab | 5,140 | 520 | 10,206 | 1,020
Floor | 4,070 | 780 | 9,200 | 2,120
Parapet walls | ... | 90 | ... | 165
+--------+-------------+--------+------------
Total concrete | ... | 4,840 | ... | 5,596
+--------+-------------+--------+------------
| | Pounds. | | Pounds.
Reinforcing steel bars | ... | 387,000 | ... | 380,000
| | | |
| | Square | | Square
| | meters. | | meters.
Expanded metal in roofs, | | | |
slabs, etc. | ... | 5,691 | ... | 10,490
==========================+========+=============+========+============
The total cost of these reservoirs, including valve-houses, by-passes,
and the length of supply pipe where the by-pass joins, and including all
engineering expenses, etc., but exclusive of the cost of lands,
planting, fencing, and special work in connection with the formation of
parks, was as follows:
South Reservoir: 394,000 pesos, or 10,368 pesos per million liters.
Obispado Reservoir: 375,000 pesos, or 9,375 pesos[7] per million liters.
[7] Mexican currency.
These rates may be regarded as reasonable when taking into consideration
the special difficulties of construction in Mexico, and the high cost of
all imported material, on which heavy duties are levied.
The value of the materials alone in these reservoirs amounted to more
than 70% of their total cost.