Measured Water Losses of Lateral A in Hidalog county Irrigaton District No. 2

摘要

Seepage and loss rate tests were conducted in Hidalgo County Irrigation District No. 2 (HCID2) on four segments of Lateral A during September 2002 and January 2003. Table 1 summarizes the results of this study. Also given in Table 1 are the results of two additional loss rate tests conducted during regional planning projects in the late 1990s. Table 2 gives the measured loss rate of each test in four commonly used methods for characterizing water loss in canals. The annual water loss amounts given in Tables 1 and 2 are based on a in-service life of 365 days. Lateral A is a concrete- lined canal location at the southern area of HCID2 running parallel just south of Military Hwy 281 approximately 38,242 ft (7.24 miles) long and 18 feet in width. Maximum operating depths range from 4 to 6.5 ft and with a normal operating range of 2.7 to 6.0 ft.