540 ALVERSON BLVD 2017-06-20 - Laserfiche WebLink

ameO at the bottom, as shown on Figure 3. The drainpipe should connect to a tightline collector pipe that discharges to a suitable location. Fill Placement and Compaction: We recommend that all soils located within the Geoweb cells, reinforced backfill and retained backfill zones be compacted to a uniform density of at least 90 percent (based on ASTM D-1557). RECOMMENDED ADDITIONAL SERVICES Because the future performance and integrity of the structural elements will depend largely on proper site preparation, drainage, and construction procedures, monitoring and testing by experienced geotechnical personnel should be considered an integral part of the construction process. Consequently, we recommend that AMEC be retained to provide the following post-report services: • Attend a pre-construction conference with the design team and contractor to discuss important geotechnical-related construction issues; • Observe the exposed subgrades after stripping and excavation to confirm that suitable soil conditions have been reached for placement of the toe of reinforced soil slope; • Verify geocell and geogrid type, spacing and installation procedures; • Monitor the placement and test the compaction of structural fill to verify conformance with the construction specifications; and • Observe the installation of all subsurface drainage. AMEC Project No.3-917-17245-A 5 W:\_Projects\17000s\17245 Alverson-Maul sby Bluff Property LLC\17245-A\Geotech Report\Finley Geotech Report 130722.docx