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<br /> 6214.3.4.1 • r,
<br /> The contractor shall maintain the erosion mat and make satisfactory repairs of any I l i
<br /> areas damaged by erosion, traffic.Gres or othcr causes until acceptance of the work. ' )
<br /> 628.3.2.2 Jute Fabric and Wood Fiber.The matting strips shall be rolled on or laid in q
<br /> the direction of the flow.The mat shall be spread evenly,smoothly,in a natural position • I"�
<br /> without stretching and with all parts bearing on the soil, When wood fiber blanket is It
<br /> used,the blanket shall be placed with the netting on top. Adjacent strips shall overlap at
<br /> least four inches. Strip ends shall overlap at least ten inches,All overlaps shall be made
<br /> • with the upgrade section oil top.
<br /> The upgrade end of each strip of Fabric or blanket shall be buried at least six inches In
<br /> a vertical slot cut in the soil and the soil pressed firmly against the embedded fabric or ,
<br /> blanket.
<br /> The mat shall be anchored in place with vertically driven staples. driven until their '
<br /> tops arc flush with the soil.Staples shall be spaced at three-foot centers along mat e,igrs
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<br /> and be alternately spaced at three-foot centers through the center.Staples shall be at let,- N ,
<br /> inch centers at end or junction slots.
<br /> 628,3.2.3 Fiber Glass Roving,The fiber glass roving shall be spread uniformly over the
<br /> designated area to form a random mat ofcontinuous glass fibers at the rate of 0.25 to 0 15
<br /> pound per square yard. The fiber glass roving shall be anchored to the ground with
<br /> asphaltic material applied uniformly over the glass fibers at a rate of 0.25 to 0,15 gallon
<br /> per square yard.The upgrade end of the roving shall be buried to a depth of one foot to I
<br /> prevent undermining.
<br /> The fiber glass roving shall be expanded and applied to the designated arca using a I r'f
<br /> pneumatic ejector capable of applying fiber glass roving at the rate of two pounds per ' I;i• •
<br /> minute or approximately eight square yards per minute, The pneumatic ejector shall he
<br /> driven by an air compressor capable of supplying 40 cubic feet per minute.of air at 80 to 7' ' r
<br /> 100 pounds {
<br /> p per square inch pressure. An approved distributor with suitable hoses rind �:
<br /> . spray attachments shall be used to apply the asphalt or other approved material, /.'
<br /> • 628.3.3 Erosion Bales.The bales shall be placed end to cnd across ditches nr at nrh,r i
<br /> --",' rtiy%rl+Jut r,wihrn Win"'In I sir, cttrsx Nall' L
<br /> e }lacru ImmcnratAry niter shaping ,kr rho ditoho 4 4r av pga is conlititrl. llnln 1111fi l hr Mill
<br /> i-I I Ai rfLtht angles to the llrrecitiott i l,i I I
<br /> nrhnn•u1i OW li i ..-1....1.1•.1 I . ......I+ d......i . l,i, ....L. �I
<br /> sumps snail uv excuvated upstream.rrom the dikes as duc�tut]byathe+engineer�IlEroslion •hales shall be removed,tic dotermined by the engine".,eft,,i il.e bIvpcn Jul.,'diu:lle have I
<br /> been staabiliu dud ter f develuped Li.) extent that future erosion is unlikely. the hales li
<br /> .d
<br /> may he used as mulch or shall otherwise be satisfactorily disposed of, The ditch shall lac
<br /> • Pinalarird5 A r"r 11.iJ 1.LriLl.LA fill, 1.716141M, 19111111.11 111011•I iil i 1i1.0cle1Y!•1 at fnd the 4,+,,
<br /> topsoiled,fcrtilizxd and seeded as required i,
<br /> 6211.Id mitt Frnee.
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<br /> (MIA I Imtnllaflun and Rumoval.Tho tilt fotwi malt ae ere.;e.:.1 isi,1.1 t„ata1 brrg tt„v I
<br /> construction operation which might cause any sedimentation or siltation at the site of the i
<br /> proposed sill fence.
<br /> The silt fence shall,when possible,be constructed in an arc or horseshoe Shape with its i I!
<br /> • eada pointing up tine. Mc Sill fence shall he nm:trnrtrrl rn the rfimenrionr and in ill •i
<br /> c rdanrr with the details shown oa thu plum,.gilt fenees shall be reill,;,d,.i cicit-,trrrrted
<br /> by the engineer,after the slopes and ditches have been stabilized and turf developed irk i
<br /> the extent that future erosion is unlikely.Materials remaining after removal shall become
<br /> the property of the contractor and shall be disposed of,oil the right-of-way. 1 1
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