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ELK CREEK QUARRY <br />ROCK MASS CLASSIFICATION EVALUATION <br />ALH <br />7/27/2004 <br /> UPPER WEATHERED ROCK GENERAL ROCK <br />1. ROD VERY POOR TO POOR POOR TO GOOD <br />(Estimated - No Core Data) (SAV VERY POOR) (SAY FAIR) <br />2. RMR <br />At 2 (5.25 MPa) 7 (50-100 MPa) <br />2 3 (<25%) 13 (50-75%) <br />3 e (60.206mm) 10 (200.600mmJ <br />4 10 (Discontinuity Condition) 25 (Discontinuity Condition) <br />5 15 (Dry) 15 (Dry) <br />B ~ 0 Very Favorable/Slopes ~ 0 Very Favorable/Slopes <br />C 38 Clasa IV (Poor Rock) 70 Class N (Good Rock) <br />D 2; Estimated Friction Angle 40 Estimated Friction Angle <br />3. O' <br />ROD 15 70 <br />,In 17 10 <br />Jr 3 3 <br />Ja 4 2 <br />Jw 1 1 <br />SRF 1 1 <br />O' 0.66 (Very Poor) 10.50 (Fair to Good Rock) <br />4. G51 <br />3; Disintegrated to BlockylDisturbed w/ <br />Very Poor <br />33 (Check; RMR-5) <br />6; Very Blocky w/Good to Falr <br />65 (Check; RMR•5) <br />JC D0793 <br />PetersonlElk Creek <br />