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<br />3921 WILSHIRE BOULEVARD, SUITE 420 <br />LOS ANGELES, CALIFORNIA 90010 <br />www.urbanstudio-la.lom <br /> <br />(213) 383.7980 ph <br />(213) 383.7981 JIU <br /> <br />RECE!VED <br />ocr 2 7 2004 <br />John Kaliski AlA e 1~''1"AWrA ANA PlJ\NNING iJEPT <br />URBAN STUDIO <br /> <br />MEMORANDUM (via e-mail; original by post) <br /> <br />Date: October24,2004 <br /> <br />To: Jay Trevino, Planning Manager <br />Vincent Fregoso, Senior Planner <br /> <br />From: John Kaliski, Principal <br /> <br />Re: Main and Macarthur Pedestrian Bridge Analysis <br /> <br />Objective of Analysis <br /> <br />City of Santa Ana planning staff asked Urban Studio to review the potential and cost of a <br />pedestrian bridge at the intersection of Main Street and Macarthur Boulevard. The objective of this <br />initial study is to preliminarily understand the impacts and potential costs of providing a pedestrian <br />link between existing and proposed commercial and residential development to the east and west <br />of Macarthur Boulevard at the intersection of Imperial Promenade. <br /> <br />Methodology <br /> <br />Urban Studio, utilizing aerial maps available on the internet and survey and footprint drawings <br />provided by Nexus (developers of Macarthur Place to the east) and Coastal Rim Properties <br />(developers of Geneva Commons to the west) prepared a base map including building footprints <br />and topographical elevations of existing and proposed development in the immediate vicinity of the <br />intersection of Macarthur Boulevard with Imperial Promenade (see attached Figure 1). Utilizing the <br />base map, Urban Studio developed six alternative layouts for pedestrian bridges (see attached <br />Figure 2 and Figure 3). <br /> <br />Key assumptions for the pedestrian bridge alternatives included the following: <br /> <br />1. Maintain minimum vertical clearance of 15'-0" at Macarthur Boulevard. <br /> <br />2. Pedestrian bridges must be accessible via elevators and/or ramps. <br /> <br />3. Design will utilize a standard bridge system. Urban Studio contacted and obtained <br />information from Continental Bridge Company in Alexandria, Minnesota regarding <br />pedestrian bridge systems and unit costs. <br /> <br />4. Design should minimally impact existing and proposed structures. <br /> <br />CU P 04-241DA 04-3fTTM 04-5 <br />SPR 04-6NA 04-111Z0A 04-5 <br />E~~~ge-112 <br /> <br />0210A 041025 JK_JT.M.doc II Page 1 of4 <br />