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<br />'" <br /> <br />equipment. <br /> <br />Therefore, this item of work is not <br /> <br />included in this' proposal as a portion of the <br /> <br />engineering services to be rendered. <br /> <br />However, should <br /> <br />t <br /> <br />the City so desire, RSA, Inc. would be privileged to <br /> <br />I <br /> <br />assist the City's Engineering staff in developing and <br />investigating various cleaning and sealing techniques <br /> <br />. <br />I <br /> <br />which may be utilized. <br /> <br />REMOVAL AND REPLACEMENT OF RIP-RAP PANELS <br /> <br />The entire upstream face of the embankment is <br /> <br />protected with a concrete rip-rap consisting of 12' x <br /> <br />14' x 5" thick concrete panels, please refer to the <br /> <br />, <br />I: <br />I <br />I <br />t <br /> <br />! <br />I <br /> <br />photographs and sketch, Exhibits "B" and "C" herein. <br /> <br />The on-site inspection indicates that the original <br /> <br />, <br />i <br />I <br />I <br />I" <br />I: <br /> <br />joint sealant has deteriorated and become dislodged <br /> <br />r <br />Ji <br /> <br />from the joint, in turn, exposing the underlying <br />embankment soil structure and concrete panel joints to <br /> <br />weather related moisture and reservoir wave action. <br /> <br />I <br />, <br /> <br />The subsequent erosion combined with the upheaval <br /> <br />t, <br /> <br />forces from freeze-thaw action and expanding root <br /> <br />systems of small timber has caused misalignment of the <br /> <br />panels as well as complete structural failure in some <br /> <br />locations. <br /> <br /> To repair this type of defect, the affected panels <br />(, must be removed and replaced with new panels. The <br />! supporting soil which exists I <br /> voids in the structure <br /> will need to be filled prior to placement of the new <br /> <br />4 <br />