4214 GRAND AVE 2016-01-01 MF Import

.` �,, �: . STREETS AND RELATED WORK 3-15.2 MATERIALS Rack for constructing new ract faca►8s stiall be large broken pieces of igneous rock obttined from a commercial quazry. Rack material shall be rectangular, selxtad pieas or rock sound and rarstant to wathering. Rock shall be fr+x of soft, weathercd matenal and sams of soft rock suscepable ro deoerioration. . Pafocated drain pipe shall be oonugated high density polyethylene smooth intaior pipe. No. 2 Coazse Aggregate shall oonform to Secaon 9-03.1(3)C of the WSDOT/APWA Standazd Specifications and to Section 3-20.9 of these Specifications. Concrete for Rocicay Cap sha11 be Class 3000. Iamp black coloring a�ent W match the color of the roclovy shall be added to the cema►t concrete during mwng in an amount not ro acceed 1-1/2 pounds per cubic yard of wncrete. Quarry Rock shall be as specified in Secdon 3-20.7 of these Specifica6ons 3-15.3 GENERAL Surfacxs reawnably acc�ssible to pedatrians above and adjaant to rockeries ovu 30 inches in height shall beprotectcd by a guardwil conforming to Sxdon 1712 of the Uniform Building Code and to Section 3-16 of these Specificxdons. Use of ecology blocks msy be approvad on a case by case basis. All ecology block walls shall be designed by a structural engineer Lca►sed in the State of Washington. A Public Worlcs �eermit is requircd for all rock walls within the public right-of-way and for all ;hose rm ezceeding 4 fat in height on private properry. 3-15.4 CONSTRUCTION REnUIREMENTS The first course of rock should be plaxd on firm unyidding soil. Thae should be full contact betwaa► the rock and soil, which may requuest�p�ng of the ground surfacx or slamming or dropping the iocla inw place so that the soil foundaaon conforms to the rock faa bearing on iG As the roclaery is cnnstructed, the rocks should be placed so that there are no continuous joint planes in ad�a the vertical or later�l direcdon. Each rock should bar on at least two rocks below it. Rocics should be placed so that thecs is wme beacing betwan flat rock faas cather than on joints. Joints between courses should sl downward towards the matesial bein6 Protected (away from the fux of the iocloecy). Voids in the roc�faa shall not be grater than SO square inches for rocks ovar 3 fat high and 36 square inches unda 3 high. The maximum thnough vrnd area will be 15 square inches ova 3 fat high and 10 square inches under 3 faet high. Any large vrnds existin� betwan each course of rock as it is placed shall be filled by wad�in� smaller rock of the same qualiry u►to the voids in the back side of the rockery. Bacldll maxnal sha11 not be allowed to spill fresly between the voids in the rocloay. The rockery shall be bacldilled in unifonn layers as consuuction procxeds. Bacldill materials shall be Quarry Rack per Secdon 3-20.7 of these Specifications. No. 2 Coarse Aggregate per Section 9-03.1(3)C of the Standard SpecificaGons and Sxtion 3-20.9 of these Spxificuions shall be used around the perfotated drain pipe behind the rockery wall per Standard Drawing No. 324. STANDARDS 3-14