Laserfiche WebLink
Z <br />March 27,1998 <br />Flatiron Companies <br />P.O. Box 229 <br />Boulder, Colorado 80806 <br />Attention: Mr. Ed McDowell <br />Subject: Compaction Testing <br />West End of Levee at Ieepe Farm Pit <br />Boulder, Colorado <br />Job Colo. 25,385 <br />Gentlemen: <br />As of this writing the dressing of the Deepe Para Pit Levee has been <br />completed; This letter summarizes the results of our compaction tests for a <br />section of the levee that was placed to extend the west end of the levee during <br />its dressing. Our observations and the results of nuclear gauge tests indicate <br />the section of fill in question was placed with adequate compaction at <br />appropriate moisture content. <br />The portion of the levee that is the subject of this letter consists of a <br />wedge shaped piece that is thinnest where it intercepts a natural ridge to the <br />unrest and is thicket about 7 feet) where it abuts against the existing levee,, <br />The wedge is approximately 200 -feet long. We selected test locations at the <br />approximate center of the wedge and at the east 1/ of the Dredge. Tests were <br />performed in pride pits excavated by a CAT D6 dozer. Considerable effort and <br />several passes of the dozer blade were required to dig the test pits. It took <br />approximately o blows with a 10-pound sledge hammer to drive a 314 inch <br />steel rod 1 inches into the compacted soil. Visually the levee fill in the test <br />pits consisted of stiff sandy clays with cobble and larger size rock. Visually <br />we estimate the percent rock at the location of test No. I was about 50 percent <br />while at test location No. 2 was about 25 percent. By per the <br />appropriate rock corrections on the nuclear gauge test results we obtained <br />CTL/THOMPSON, INC. <br />CONSULTING ENGINEERS <br />1971 WEST 12TH AVENUE ■ DENVER, COLORADO 80204 ■ (303} 825 -0777 <br />