Specifications include, but are not limited to: The prime Consultant(s) shall provide Final Design for improvements to the East-West Corridor as identified in Pinal County’s East-West Corridor Study – Final Design Concept Report (2015). A high-capacity transportation facility directly linking the Cities of Maricopa and Casa Grande between State Route 347 and Interstate 10. Construction is nearly complete of the initial segment within the City of Maricopa also known as the Sonoran Desert Parkway that terminates at Porter Road along the Farrell Road alignment. This final design effort will begin at Porter Road and continue east to Interstate 10, approximately 15 miles. The EastWest Corridor will implement the Arizona Parkway Concept, a four lane divided highway in order to increase capacity and enhance traffic efficiency.