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Coordinate and modify the drainage facilities previously <br /> designed by Caltrans along the mainline of the 1-680 <br /> Widening project. Meet with Caltrans field and office <br /> staff for coordination of the modifications of the two <br /> projects. <br /> <br /> Task 3-2: Pipe Extension--Investigate need and method <br /> to extend the west end of the existing 90-inch diameter <br /> pipe crossing 1-680 at Sta 421+20. Consider existing <br /> constraints imposed by the headwall structure, the ad- <br /> jacent soundwall and their effect on Caltrans mainte- <br /> nance access to the pipe and control of access from <br /> outside the freeway right-of-way. Meet with the CITY <br /> and Caltrans field and office staffs to coordinate the <br /> design and construction of the proposed pipe extension. <br /> The final design and construction of the pipe extension <br /> will be performed by Caltrans. <br /> <br />Task 4--Contract Document <br /> <br />Prepare a separate contract document for the CITY's use to <br />bid or negotiate a contract to construct the following ele- <br />ments of the Stoneridge Drive Interchange prior to the normal <br />sequence of construction: <br /> <br />1. Placement of compacted embankments using materials sup- <br /> plied by the contractor or others <br /> <br />2. Installation of selected drainage culverts <br /> <br />3. Construction of the median pier for the Stoneridge <br /> Drive overcrossing widening <br /> <br />4. Construction of a sign bridge column foundation <br /> <br />The estimated fee for this task includes the appropriate <br />credit for the work required which was already included in <br />the scope of work and fee for the related tasks in Amendment <br />No. 3 for the final design of the Stoneridge Drive Inter- <br />change. <br /> <br /> Task 4-1: Grading--Provide additional early coordina- <br /> tion of embankment construction using material from <br /> outside sources. Meet with the CITY, Caltrans, and the <br /> selected contractor to coordinate the schedule and <br /> staging and define the work. <br /> <br /> Investigate conditions, develop and prepare special <br /> provisions to execute the work consistent with staged <br /> construction of the project. Establish pay items and <br /> method of measurement to complete the work; estimate <br /> the quantities and cost of construction. <br /> <br /> <br />