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Preliminary Design Report Addendum No.2 <br />Pipeline Length <br />Route 2 is approximately 10,773 feet in length. <br />Public Inconvenience & Safety <br />Minor public inconveniences will occur within Route 2 when constructing along the roadway due to <br />equipment placement, work vehicles, etc. The beginning of Route 2 will require that an easement be <br />obtained from the Newport Beach Golf Course. The majority of the route is within ROW and will require <br />maintenance of traffic (MOT). When possible, a trenchless method of construction will be used to cross <br />major intersections to minimize lane closures along the route. <br />Right of Way Availability <br />Route 2 utilizes existing rights -of -way along the majority of the route. The following properties will need <br />permanent construction easements acquired from private landowners: <br />• Newport Beach Golf Course, 20 feet wide by 550 feet long <br />• 2765 Newport Blvd, 20 feet wide by 50 feet long <br />Operation and Maintenance <br />This section will be addressed upon the completion of the hydraulic calculations of the preferred <br />alternative routes. <br />Special Construction <br />Trenchless construction techniques will be used for all pipeline crossings of major highways to avoid <br />disruption in vehicular traffic. Route 2 contains three crossings which will require special coordination <br />and involvement with the applicable agencies. <br />• Delhi Channel (HDD), 300 feet, 30 feet deep <br />• Newport Beach Golf Course (HDD) to 1731 Orchard Drive, 600 feet, 10 feet deep <br />• Santa Ana Avenue (jack and bore), 150 feet, 10 feet deep <br />• Newport Blvd (HDD), 500 feet, 40 feet deep <br />HDD and jack and bore construction will be used to accomplish these major highway crossings. <br />Additional information regarding the estimated cost of special construction is located in Exhibit B. <br />Route 3 <br />The limits of Route 3 begin at the proposed Delhi Channel Diversion Facility Pump Station and end with <br />the pipeline connection to the manhole upstream of the existing Irvine Boulevard Pump Station, which is <br />an existing system owned and operated by CMSD. Wastewater collected at the Irvine Boulevard Pump <br />URS 21 <br />25F -153 <br />