Observations/Finding

Our AS Engineering & Consulting (ASEC) representative arrived on site to observe field activities. The following tasks were performed: 

Visual observation techniques were employed to verify compliance with project drawing/specifications, applicable codes, and materials submittals. The following observations were observed on site this day.

• The placement and compaction of backfill soils for the SSFM and water lines in creek crossing (location is shown in picture) continued this day.
• At the time of arrival, our representative observed that work was in progress with 1-foot lifts being placed and compacted using 14-ton sheeps-foot and 6-ton pad feet and trench compaction equipment. Compaction testing was performed using the Standard Test Method for Density of Soil in Place by Drive-Cylinder (ASTM D 2937), along with general probing using a 3/8″ diameter probe rod.
• Density test results indicate that most of the compacted materials met the project requirement of 95% of the maximum dry density obtained by a Standard Proctor ASTM 698.

We appreciate the opportunity to be of service to you on this project. If you have any questions regarding this report, please feel free to contact us. We will be more than happy to discuss it with you.