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<br />implementation of the water control plan, but the cost of such is <br />subsidiary to all work on the project. <br /> <br />100.3 <br /> <br />ON-SITE HAUL/PROTECTION OF EXISTING VTGETATION <br /> <br />The Contractor is cautioned that one of the principal objectives of this <br />project is to protect and reclaim weUands and adjacent vegetation. As <br />a result, the Contractor must take special care to avo'id damaging <br />existing vegetation in areas that do not need to be disturbed to <br />complete construction. The Contractor shall reseed any disturJed area <br />outside of the construction limits. <br /> <br />To this end, the Contractor shall submit a plan for on,-site haul of <br />materials prior to construction. T1e plans shall include points of <br />access to and from the site and shall sllowa workable system of on-site <br />haul routes that protect existing ve<)etation. This plan shall be <br />submitted to the Engineer for his review and comment. The plan will be <br />discussed with the Contractor to insure protection of existing vegetation <br />but the Engineer shall not dictate hau'l routes or construct'ion methods <br />to the Contractor. <br /> <br />300 RIPRAP AND RIPRAP BEDDING <br /> <br />All riprap material shall be Type 'H' and shall be placed in accoy'dance with <br />the Urban Drainage and Flood Control District Criteria, and shall conform to <br />the following sections: <br /> <br />Submittals and Testing <br /> <br />The Contractor shall submit a certificate stating both the source of stone <br />and certifying that the materials for all' types of riprap will meet the <br />requirements of this section. Test results for specific gravity, abrasion, <br />and freeze/thaw shall be submitted. <br /> <br />In advance of delivery of riprap to 'the work site if so required by the <br />Engineer, an inspection of the quarry shall be arranged by the Contractor <br />and shall include the Contractor, Engineer, and Quarry Representative. The <br />quarry will identify the rock source and py'ocedures that will be used to <br />stockpile, mix and grade the types if riprap specified. For each type of <br />riprap specified, a 10 ton minimum random sample will be selected by the <br />Engineer. The objective is to obtain a samJle as it would be handled for <br />normal del ivery to the work site. It wnl then be placed in an app'"oved area <br />at the quarry and sized and sorted to idertify and weigh the individual <br />pieces as directed by the Engineer. The Contractor and Quarry Representative <br />shall supply all labor and equipment to SOI"t and weigh the riprap. The <br />approved sample shall then be hauled to the work sHe and stockpiled for <br />comparison of future riprap del iveries. When del ivered to the work site, a <br />second field graduation may be requested by the Enqineer to determine <br />compliance with these specifications. The Engineer may at any time, if he <br />deems necessary, require additional field gradations or other tests. Such <br />tests Shall be completed at the Contractor's expense. <br />