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Huitt-Zollars prepared PS&E and right-of-way documents to close an <br />existing gap in Orange County's Master Plan of Arterial Highways between <br />Ortega Highway and the City of San Clemente. This 3.7 mile long, $72 <br />million project was comprised of critical elements that came together <br />for the project's success: working within the Prima Doshoolia Landfill <br />and designing controlled access to the landfill; widening an existing <br />section of roadway that most remain in operation to serve the landfill and <br />adjacent high school; and pioneering a 08W rDadwaythrough undeveloped, <br />mountainous terrain with final roadway grades up to 7%. Huitt-Zollars <br />overcame multiple challenges associated with the following critical <br />elements: moving 15 million cubic yards of earth; performing landslide <br />remediation; mitigating offects of constructing the roadway through a <br />former landfill area and relocating more than one billion pounds (850K <br />cubic yards) of municipal solid waste; relocating two steel lattice electrical transmission towers; actively communicating with Impacted <br />communities; and responding to numerous environmental mitigation measures that must be implemented during design and construction, <br />Challenges ware also associated with constructing deep drainage culverts, storm drainage systems and water quality basins, two cast in <br />place bridge overcrossing and five 30-foot diameter steel multi -plate tunnel undercrossings. Installed approximately 3,000 IF of sewer and <br />domestic water line, <br />Cl <br />0 <br />0 <br />C <br />0 <br />0 <br />0 <br />0 <br />The project included Installation of approximately 3,000 LF of sewer and domestic water line and constroction/extension of 22 cross culverts <br />beneath the future roadway and a substantial roadway storm drain infrastructure comprised of more than 15,000 linear feet of reinforced <br />concrete pipe; ranging In size from 18to 108 inches in diameter, The roadway storm drain Infrastructure segregates roadway runoff from offsito <br />Cl� <br />drainage areas in order to facilitate treatment of roadway Impervious surfaces, To meet Orange County criteria and NPOES requirements, a <br />total of six combined basins (to address water quality, hydromodification, a nd detention) were included in the project to address pollutants of <br />-requirements.- -peak - <br />concem-and meet LID Flood control req uIroments are met by providing additional flow detention storage (over tBwacre- <br />feet) In these basins, <br />IIELEVANT <br />DESIGN -COMPONENTS: <br />Va I lueEngineartni <br />Eoiweani <br />Sewer and Domestic Water <br />& <br />Pavement Rehabilitation & Overlay <br />Road Widening <br />V <br />GaoWpakal <br />�Gqp PS!PT, <br />Stotne'Drain <br />Mi& $fj&f6jeS: <br />I)i rc Slkha s <br />At Con rbYConstedeflofiSlaging - <br />_fft , 1 1 dk6l Core r p ­ Uter pro 1 g _ rip , is <br />60 it' <br />:Ceestrueli S 0 <br />e rdi & Relocation <br />......... I .... I ................ I . I . I . . I . . I ................... <br />Project of The Year Award <br />Design Quality Partner Award for Projects $51 - $100 Million <br />92 on Roads and Bridges Magazine Top 10 Roads List <br />0 E S I Award for a Roulonal Transilortatiou Proiect <br />............................................ ...... <br />HUITT-ZOLM City of Santa Ana Civil Engineering Services: RFP 17-083 10 <br />25E-234 <br />0 <br />11, � <br />Al <br />`41, <br />4"t <br />