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<br />d. Flood of May 1935. The flood of 30 May 1935 on Monu-
<br />ment Creek, the principal tributary to Fountain Creek, was the
<br />msximum known but resulted in little damage at Pueblo where
<br />Fountain Creek flows into the Arkansas River. The flood peak,
<br />which was considerably reduced by the time it reached Pueblo,
<br />was estimated by indirect measurement to be 35,000 c.f.s. near
<br />the mouth of Fountain Creek. This flood was produced by an
<br />excessive rainfall of short duration over an area of less than
<br />100 square miles in the Monument Creek watershed, following a
<br />period of general precipitation. There were reports of as much
<br />as 18 inches of rainfall in 24 hours at several locations in the
<br />storm area. This flood caused severe property damage and the
<br />loss of four lives in Colorado Springs snd vicinity.
<br />
<br />e. Flood of April 1942. The month of April 1942 was
<br />one of the wettest months in Colorado'a hiatory. The average
<br />precipitation of 4.53 inches was the second largest of record
<br />for the State at that time. This amount was exceeded only by the
<br />5.96 inches of precipitation during April 1900. Heavy precipi-
<br />tation, much of it in the form of snow, occurred during
<br />16-20 April over the Purgatoire River watershed. Rainfall dur-
<br />ing the period 22-25 April hastened the melting of heavy snow
<br />deposits, causing high flows on the Purgatoire River at Las
<br />Animas. Precipitation over the Arkansas River watershed above
<br />Las Animas produced a peak of 12,000 c.f.s. at Nepesta; 34,000
<br />c.f.s. at La Junta; and 23,600 c,f,s. at Las Animas. Althougll
<br />there was major flooding at Trinidad, where the peak flow on
<br />the Purgatoire reached 27,000 c.f.s, the principal damage in
<br />the Arkansas River valley was to transportation and irrigation
<br />systems.
<br />
<br />f. Flood of May 1955. During the period 17-20 May
<br />1955, heavy precipitation occurred over the lower mountains and
<br />plains of eastern Colorado and northeastern New ~~xico. Heavy
<br />rain also occurred over western Kansas. Precipitation over the
<br />mountainous area was principally in the form of dense wet snow
<br />while heavy rains fell over the plains. The storm began on the
<br />afternoon of l7 May over the entire area and continued through
<br />the 19th in New Mexico snd Kansas. Precipitetion ended at most
<br />L;olorado atations during the afternoon of the 19 tho In north-
<br />eastern New Mexico, l3.59 inches occurred in 48 hours, with
<br />11.20 inches measured during the 24-hour period ending at 4:00
<br />p.m. on the 19th. Bajor flooding occurred in the Arkaneas River
<br />wetershed from Pueblo to John Martin Reservoir and in the entir..
<br />reach of the ('urgatoire Ilivor from Trinidad to the mouth. 'I'h..
<br />flood on the Purgatoire River approached the IMgnitud" of the
<br />1942 flood at Trinidad snd was the largest of record on the
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