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r' <br />~. W. WHEELER AND ASS0CIA7E5. If~ <br />CONSULTING ENGINEERS <br />SMITE 214 <br />3385 SO JTH BANNOCK STREET <br />EN0LCW0OO. C0L0RAO0 BOIIO <br />March 17, 1977 <br />Mr. Mack Graham <br />Western Paving Construction Company <br />P.0. Box 21649 <br />1400 West 64th Avenue <br />Denver, Colorado 80221 <br />Re: #657 Parshall Flumes <br />Dear Mack; <br />II1 III11lIIIIIII III <br />PHONE <br />761.4111 <br />Enclosed is the information concerning the Parshall <br />Flumes we discussed. To avoid submerged-flow conditions we <br />would recommend that the floors (crests) of the 5-foot flumes <br />.e set at least 10 inches above the bottom of the stream ch.3nne1, <br />and that the floors of the 2-foot flumes be set at least 6 inches <br />above the bottom of the ditch. <br />If you have questions, please call. <br />Very truly yours, <br />W/.f~`~W/~~~WHEyE~L(E/~R/Y//~ANO ASSOC~-I/yA^,fT~EfS, INC. <br />Kurt A. Gretzinger / G~ <br />KAG:11 <br />Enc. <br />