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… not under the field area (which we did back in the Spring of 2001; and the field was installed that summer), but now behind the tops of the bleachers, where substantial restroom and concession-stand replacements and additions are soon to take place. ETTL was called upon to take soil samples at some ten locations. Each boring was 15 ft deep, with continuous sampling taking place for the first 10 ft, and then again at the 15 ft depth, using a 4-in. diameter auger. The rig used was ETTL's Mobile B-61 HDX, one of the seven units in our fleet. As the photos below show, some of the locations were in pretty tight spots, on the edges of steep slopes. The drilling was done by ETTL's Billy Ragon, while Chris Lofton logged in the samples on the tailgate of a company pickup and prepared them for transport to our Tyler soil labs. There the samples were tested for classification (plasticity index [PI] and -200 sieve), strength, expansive properties, and compressibility characteristics. The results were turned over to our geotechnical engineering department for analysis. A report, including the lab findings as well as foundation recommendations, was prepared, reviewed by Steve Richards, ETTL's VP and Manager of Engineering Services, and then sent to Tyler's I.S.D. All told, a relatively simple project! -- but illustrative of procedures that have been followed in literally thousands of geotechnical projects carried out by ETTL during the past 39 years. (See in-depth information about ETTL's geotechnical services on our web site.)
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