AMERICAN SOCIETY OF CIVIL ENGINEERS

INSTITUTED 1852

TRANSACTIONS

Paper No. 1170

THE WATER SUPPLY OF THE EL PASO AND SOUTHWESTERN RAILWAY FROM CARRIZOZO
TO SANTA ROSA, N. MEX.[A]

BY J.L. CAMPBELL, M. AM. SOC. C.E.

WITH DISCUSSION BY MESSRS G.E.P. SMITH, KENNETH ALLAN, and J.L.
CAMPBELL.




_Location_.--The El Paso and Southwestern Railway traverses the arid
country west of the 100th Meridian in New Mexico, Texas, and Arizona, as
shown on the map, Fig. 1. The water supply herein described serves that
division of this road lying between Carrizozo and Santa Rosa, a distance
of 128 miles.

_Rainfall_.--The average annual precipitation is 9.84 in. The year 1909
was exceptionally dry, with a rainfall of less than 5 in.

_Original Water Supply_.--East and west of El Paso, for distances of 270
miles in each direction, the railway crosses no streams, and the supply