1506 GRAND AVE 2018-01-02 MF Import

, � March 1�1. 2010 Addition to Stccvcs Rcsidcncc I.RA .loh No. 10-OOR Pagc l0 czcavatcd aroas. Unsuppurtcd tcmporai�� cuts grc.itcr thau 4 icct in hcieht should hc no stecper than 1 H:l V in the surficial topsoil and ��cak soils in the root zone. and no steeper than 1/4FI:IV in thc undcrlying dcnsc sand and/or hard silt soil laycr. ��hc soil units and thc stability of cut slopcs should bc vcriticd b�� a gcotcchnical cnginrcr during cxca��ati�m. 'fhc ahovc rccommcndcd cut slopcs arc undcr thc assumption that groundwatcr sccpagc �vould not be encountered during construction. If groundwater secpage is encountcred. thc construction should bc inuncdiatcly haltcd and thc slope stabiliq� rc-c��aluatcd. �I�hc cut slopcs may havc to bc tlattcncd and othcr mcasures taken to stabilizc thc slopcs. Surfacc runol'f should not bc allo�vcd to flow uncontrollcd ovcr thc top of cut slopes. Cut slopcs should bc covcrcd ��ith plastic tarps, as rcquircd. to protcct thcm from crosion by stormwatcr. STRUCTURAL FILL Structural fill is thc lill that support structural or traftic load. Structural till should consist of cican soils with particics not largcr than thrcc inchcs and should bc Irce of organic and othcr dcictcrious substanccs. Structural fill should havc a moisturc contcnt within onc perccnt ol'its optinnu�,� moisturc contcnt at thc timc of placcmcnt. "I'hc optimum moisturc content is the water content in the soil that enable the soil to be cotnpacted to the hiehest clry densiq� fi�r a gi��en compaction cffort. The on-site clean till soils may be used for structural fill only undcr tair ��cathcr conditions whcn thcir moisture contcnt can bc controlled to near optimum moisture contcnt at the time of placement. Imported material to bc uscd as structural �ill. should bc cican. (reo-draining. granular soils containine no LIU & ASSOCIATES, INC. / �,�