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' <br /> ' A. Protect structures,utilities,sidewalks,pavements,and other facilities from damage caused <br /> b}settlement, iateral movement,undermining,washout,and other ha2ards created by <br /> eazthwork operations. <br /> ' B. Tree protection is specif ed in the Division 2 Section"Selective Demolition."See Architect <br /> if it appears that grading may damage existing tr�s <br /> ' 3.2 DEWATERING <br /> A. Prevent surface water and snbsurface or grour�d water,fram ponding on prepared sub$rades, <br /> and from floQding Project site and sunrounding azea. <br /> ' B. Protect subgrades soils from softening and damage by rain or water accumulation. <br /> ' 3.3 EXCAVATION <br /> A. Classified Excavation: Excavatian is classified and includes excavation to required <br /> subgrade elevations. Excavation will be classifted as earth excavation or rock excavation <br /> , as follows: <br /> 1. Earth excavation includes exca.vation of pavements and other obstauctions visible <br /> ' on surface;underground struchues,utilities,and other items indicated to be demolisi�ed and <br /> removed;together with soil and other materials encountered that are not classified as zrock <br /> or unauthorized excavation. <br /> ' 3.4 STABII,ITY OF EXCAVATI�NS <br /> A. Comply with Iocal codes,ordinances,and requirements of authorities having jurisdictian <br /> ' to maintain stable excavations. <br /> 3.5 A.PPROVAL OF SUBGRADE <br /> ' A. Notify Architect when excavations have reacheci required subgrade. � <br /> B. When unforeseen unsatisfactory sail is present, continue excavation and replace with <br /> ' compacted backfill or fill material as directed. <br /> 3.6 UNAUTHORIZED EXCAVATION(T�ANY) <br /> , A. Fi11 unauthorized excavation under foundations or wall footings by extending indicated <br /> bottom elevation o£concrete foundation or footing to excavation bottom,without altering <br /> required top elevation. Lean concrete fill may be used ta bring elevations to proper position <br /> ' when acceptable to the Architec� <br /> 1. Fiil unauthorizsd excavations under ot�er construction as directed by the Architect. <br /> , 3.7 STORAGE OF SOIL MATERIALS <br /> A. Stocicpiie excavated materials acceptable for backfiIl aBd fill soil materials, including <br /> ' acceptable borrow materials. Stockpile soil materials without intermixing. Place,grade, <br /> .and shape stockpiles to drain surface water. Cover to prevent wind-blown dust. <br /> 1. Stockpile soil materials away from edge of excavations. Do not store.within drip <br /> ' line of remaining trees. <br /> 3.8 BACKFII,L <br /> , A. Backfill excavations promptly,but not before compieting the following: <br /> EARTHWORK Page 3 of 6 <br /> ' <br />