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<br />OCI-30-96 WED 14:01 <br /> <br />BRR BLD 53 DFC <br /> <br />FAX NO. 2365034 <br /> <br />p, 04 <br /> <br />larger than actual 1958 or 1990 flood disc;harg... <br /> <br />Auvuat 1 B. 1 IS. r.lnstorm n..r Moraan. Utah <br /> <br />n _/ JJ. 'Ie'" ~, <br />On August 18, 1958, up to 7 inches (fi:A~ ~alnfall-bUcket survey) of rain occurred a few <br />miles east of Morgan. On September 23. Don Jell8en, Man Lindon, Ed Tomlinson, and Mark <br />Solak participated in the fieldtrlp to the Morgan area. Flood runoff occurred in tnbutary <br />streams to the Weber River near Morgan. The elevation In the Mergan area ranges from about <br />5,100 to 8,500 feet (at the head of Yence Hollow). Numeroulstreama near Morgan and within <br />the 1958 storm area Were visited to eslimate pallOlIood discharge. We also Interviewed three <br />members of the Raese family (mother and two IOI\s), who were present during the storm and <br />where the rainfall-bucket (maximum) estimate of 7 inches 01 rain originated. Historical <br />accounts indicate that maximum rainfall and flooding occurred in the streams at the Reese ranch. <br />AJlthree of the Reeses riCall the storm as the largest ever in the family's history at the ranch <br />(60+? years). The most notabla insight provided was that flood runoff from the Reese property <br />(primarily Vence Hollow). which deposited sediments on their hay meadows and damaging hay- <br />baling equipment, did not llubstantially cross the railroad tracks (apparently still at the same <br />location and grade) and highway (since replaced with the Jnteratate Highway 1-84 at a higher <br />grade) ner cause ponded waler to any extent. This differa from historical accounts that Indicated <br />roads in the Mergan area were closed for some time (perhaps referring to a different section of <br />road). If the Reese account is correct. this Implies that flood volume for tributaries near the <br />ranch was relatively small and perhaps were debris flows. Mrs. Reese and her sons Indicated <br />that they didn't recall a 'milk can on a fence" which was reported as part of the 1958 rainfall- <br />bucket lurvey, nor do they recall any family member mention having such a container during <br />storm. <br /> <br />Mr. Wayne Pentz, a lifetime resident In Morgan and currently living In the Cedar Gulch basin <br />Indicated that the Morgan area has had 4 floods or debrl. flows since abouI1935. but in <br />different basins. He recalled the largest event occurred in Cedar Gulch about 1951 when he was <br />about 21 years old. [Newspaper and other accounts may provide the date of this event] He <br />indicated cat-sized boulders were transported In Cedar Gulch and estimatod the flow (like thick <br />mud) was about 50 feet wide and 4 to 5 'eet deep on the debris fan. He indicated most storms In <br />Morgan have durations of about 5 to 10 minules. I question his estimated duration; perhaps he <br /> <br />3 <br />