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another major east/west link between the two cities. The proposed project would <br />consist of Alton Avenue as a four-lane overcrossing with a 14-foot median <br />connecting each side of SR-55 and the addition of HOV direct access drop ramps to <br />support circulation between the Cities of Santa Ana and Irvine, relieve local traffic <br />congestion, support planned development and growth in both cities, and improve <br />HOV access. <br />In 2004, PB under a contract with the City of Santa Ana prepared an Environmental <br />Impact Report with Findings of Fact and Statement of Overriding Considerations / <br />Environmental Assessment with Finding of No Significant Impact (EIR/EA) and a <br />Project Report to determine and evaluate the impacts of the proposed project and to <br />select a preferred alignment. To document National Environmental Policy Act <br />(NEPA) clearance, the Federal Highway Administration (FHWA) has determined that <br />this project will not have any significant impact and prepared a Finding of No <br />Significant Impact (FONSI) in 2005 documenting that this project will not have any <br />significant on the human environment. The preferred alternative (in Exhibit B) was <br />concurred and approved by Caltrans in 2006. Caltrans approved the following <br />mandatory and advisory nonstandard features per the Caltrans Highway Design <br />Manual (HDM) on October 3, 2001 and August 23, 2001, respectively: <br />APPROVED NON-STANDARD MANDATORY AND ADVISORY DESIGN FEATURES <br />Exce tion Index Desi n Sub'ect HDM Standard Pro osed Desi n <br />Mandato 202.7 Standards for Su erelevation +4% +2% <br />Mandato 302.1 Shoulder Width <br /> On Freewa 10 ft Left 2 ft Left <br /> On HOV Ram 4 ft Left 2 ft Left <br />Mandato 309.1 Horizontal Clearance <br /> On Freewa 10 ft Left 2 ft Left <br /> On HOV Ram 4 ft Left 2 ft Left <br />Mandato 501.3 Interchan e S acin Between <br /> Freeway-to-freeway Interchange <br />and Local Street Interchan e <br />2 miles <br />1.5 mile <br /> Interchan es 1 mile 0.3 mile <br />Adviso 101.1 Desi n S eed of Local Facilit 45 MPH 35 to 42 MPH <br />Adviso 305.1 Median Width 36 ft 18 ft <br /> <br />Adviso <br />310.2 Outer Separation from Edge of <br />Traveled Wa ETW to ETW <br />26 ft <br />5 ft <br />The following documents and files are available on the attached compact disc: <br />A. EIR/EA <br />B. PR (Approved by Caltrans in 2006) <br />1. Traffic Study (Approved as part of the PR) <br />2. Long Form -Storm Water Data Report (Approved in 2006) <br />3. FONSI (Approved by FHWA on 11/28/2005) <br />C. Mandatory Fact Sheet (Approved by Caltrans on 10/03/2001) <br />D. Advisory Fact Sheet (Approved by Caltrans on 08/23/2001) <br />E. Traffic Analysis Technical Report <br />5 <br />25D-31 <br />