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ST9902-LR130830 (2)ALLIANCE GEOTECHNICAL GROUP CONSULTING ENGINEERING * GEOTECHNICAL ENGINEERING * CONSTRUCTION MATERIALS 3228 Halifax Street, Suite A, Dallas, Texas 75247 Phone:972- 444 -8889 Fax: 972 - 444 -8893 DRILLED PIER INSPECTION REPORT CLIENT: City of Coppell PROJECT: West Sandy Lake Road Improvements AGG REPORT #: C13- 0634 - 150696 -1 REPORT DATE: 08/30/2013 DISTRIBUTION: INSPECTOR/DATE: Damon Hall 8/27/2013 DRILLING COMPANY: Texas Shafts BUILDING: Paqe 1 of 1 REMARKS: ALLIANCE GEOTECHNICAL GROUP * An approximate 5' thick hard gray shale layer exists above the very hard gray sandy shale. DO NOT START PENETRATION UNTIL VERY HARD GRAY SANDY SHALE IS ENCOUNTERED. Pier Location (grid lines) 1K Design Shaft Diameter 18 inches Design Penetration 5 feet Elevation of Top of Pier 479.64 feet Ground Elevation 482.10 feet Actual Shaft Diameter 18 inches Depth to Bearing Stratum (Very Hard Gray Sandy Shale)* 34.5 feet Required Pier Depth 39.50 feet Actual Pier Depth 43.20 feet Actual Pier Penetration 8.70 feet Elevation of Top of Bearing Stratum 447.60 feet Elevation of Bottom of Pier 438.90 feet Pier Location within Tolerance yes Pier Plumb within Specifications yes Casing Required yes Length of Casing 32 feet Depth to Top of Casing 2.0 feet Depth to Bottom of Casing 34.0 feet Depth Required Due to Casing N/A Water Present in Hole at Concrete Pour no Pier Bottom Clean yes Vertical Bars (number & Size) 6 #6 Horizontal Ties (Size & Spacing) #3 @6" Steel Cage Diameter 12 inches Length of Steel Cage 32.4 feet Concrete Placed in Center of Pier Hole with a Hopper or Inverted Chute Inverted Chute REMARKS: ALLIANCE GEOTECHNICAL GROUP * An approximate 5' thick hard gray shale layer exists above the very hard gray sandy shale. DO NOT START PENETRATION UNTIL VERY HARD GRAY SANDY SHALE IS ENCOUNTERED. ALLIANCE GEOTECHNICAL GROUP CONSULTING ENGINEERING * GEOTECHNICAL ENGINEERING * CONSTRUCTION MATERIALS 3228 Halifax Street, Suite A, Dallas, Texas 75247 Phone:972- 444 -8889 Fax: 972 - 444 -8893 DRILLED PIER INSPECTION REPORT CLIENT: City of Coppell PROJECT: West Sandy Lake Road Improvements AGG REPORT #: C13- 0634 - 150698 REPORT DATE: 08/30/2013 DISTRIBUTION: INSPECTOR/DATE: Duce Roberts 8/28/2013 DRILLING COMPANY: Texas Shafts BUILDING: Paae 1 of 1 ALLIANCE GEOTECHNICAL GROUP * An approximate 5' thick hard gray shale layer exists above the very hard gray sandy shale. DO NOT START PENETRATION UNTIL VERY HARD GRAY SANDY SHALE IS ENCOUNTERED. Pier Location (grid lines) 2F Design Shaft Diameter Winches Design Penetration 5 feet Elevation of Top of Pier 469.40 feet Ground Elevation 471.80 feet Actual Shaft Diameter 36 inches Depth to Bearing Stratum (Very Hard Gray Sandy Shale)* 32.1 feet Required Pier Depth 37.10 feet Actual Pier Depth 37.70 feet Actual Pier Penetration 5.60 feet Elevation of Top of Bearing Stratum 439.70 feet Elevation of Bottom of Pier 434.10 feet Pier Location within Tolerance yes Pier Plumb within Specifications yes Casing Required yes Length of Casing 19.6 feet Depth to Top of Casing 1.5 feet Depth to Bottom of Casing 21.1 feet Depth Required Due to Casing N/A Water Present in Hole at Concrete Pour no Pier Bottom Clean yes Vertical Bars (number & Size) 10 #9 Horizontal Ties (Size & Spacing) #3 @6" Steel Cage Diameter 30 inches Length of Steel Cage 39.9 feet Concrete Placed in Center of Pier Hole with a Hopper or Inverted Chute Inverted Chute ALLIANCE GEOTECHNICAL GROUP * An approximate 5' thick hard gray shale layer exists above the very hard gray sandy shale. DO NOT START PENETRATION UNTIL VERY HARD GRAY SANDY SHALE IS ENCOUNTERED.