25F - AGMT - DELHI DIVERSION PROJECT

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Preliminary Design Report Addendum No.2 Birch Street at Quail Street and Dove Street, all of which are close to John Wayne Airport. The beginning of Route 4 will require an easement to be obtained from Newport Beach Golf Course. The majority of the route is within ROW and will require maintenance of traffic (MOT). When possible, a trenchless method of construction will be used to cross major intersections to minimize lane closures along the route. Right of Way Availability The OC Public Works land use records indicate that a portion of Birch Street parallel to Campus Drive is within a private tract (from Bristol Street N. to Dove Street, OC Tract No. 3201), and therefore Route 4 goes along Campus Drive for the majority of the route. The following properties will need permanent construction easements acquired from private landowners: • Newport Beach Golf Course, 20 feet wide by 1,000 feet long Operation and Maintenance This section will be addressed upon the completion of the hydraulic calculations of the preferred alternative routes. Special Construction Trenchless construction techniques will be used for all pipeline crossings of major highways to avoid disruption in vehicular traffic. Route 1 contains three crossings which will require special coordination and involvement with the applicable agencies. • Newport Beach Golf Course (HDD), 1,000 feet, 10 feet deep • Campus Drive. (jack and bore), 150 feet, 10 feet deep • Birch St. (jack and bore), 60 feet, 10 feet deep HDD and jack and bore construction will be used to accomplish these major highway crossings. Additional information regarding the estimated cost of special construction is located in Exhibit B Route 5 The limits of Route 5 begin at the proposed Delhi Channel Diversion Facility Pump Station and end with the pipeline connection to the existing OCSD's 15" diameter trunk main at the intersection of MacArthur Boulevard and Campus Drive. This route begins at the proposed diversion facility location and proceeds north across Newport Beach Golf course to Bristol Street SE ROW, crossing Corona Del Mar Freeway using an existing utility crossing structure, and continues northeast on Campus Drive within the ROW. The route continues northeast within the Campus Drive ROW to MacArthur Blvd, ending at an existing manhole on the northwest corner of the intersection of MacArthur Boulevard and Campus Drive. Pipeline Length Route 5 is approximately 7,566 feet in length. Public Inconvenience & Safety The public inconveniences within Route 5 when constructing along the roadway include the major crossings of the Corona Del Mar Freeway (including Bristol Street S. and Bristol Street N). Campus Drive is on the premises of John Wayne Airport. The beginning of route 5 will require an easement to be UR.S 24 25F -156