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,- i' . t~~ Riverfront Research Park (southwest). PDD staff should also provide details on parcels that would comprise this site, total acreage, zoning and other data for this site. Current uses here generate commercial and institutional type trips that likely total less than half of the anticipated volumes from hospital and medical office building use. The major capacity constraints and challenges to acceptable transportation operations would be at the intersections of Riverfront Parkway/Agate Street and Onyx Street with Franklin Boulevard. Additional lanes would be unlikely to satisfy acceptable operations during peak periods and a third connection further west on Franklin Boulevard (such as the Avenue B --depicted in-the-Riverfront Reseazch-Park master plan)-would-be-necessary-to-adequately serve this area ------ --- --- and the cost of such construction is likely to be in the $750,000 to $1,500,000 range. West 11te Avenue at Willow Creek Road. This 47.73 acre site (17-04-33-40, TL 301 is currently undeveloped and has been annexed into the City. This site has a base zoning of I-2 Light Medium Industrial Zone and the same Metro Plan designation. The parcel is bordered on the.east and southeast by BLM wetland restoration area that is part of the WEWP. Assuming that buildout could utilize 90% of the parcel (10% reduction to buffer the sensitive adjacent land) some 43 acres developed as Light Medium Industrial would generate approximately 2,225 daily trips, 310 during the AM and 340 during the PM peak hourly periods. Wastewater service to this site will not be available until completion of the Legacy Interceptor, which has begun construction and should be completed within the next year or two. The Transportation Impact Analysis (TIA) previously performed evaluated a 423,000 square foot Hospital and 100,000 Medical Office Building, which using the Kittelson equation for a co-located Hospital and~~N10B projected about 11,000 daily trips with 778 during the AM and 854 during the PM peak hours:, The impacts of a potential :increase of about 465 AM and 515 PM trips would need to be evaluated':~against the capacity and operational aspects of roadways adjacent to or downstream of the site, with trips distributed across available routes. Using a distribution pattern similar to that evaluated for the Delta Ridge site (zip code based), we could anticipate 15% to and from the west and northwest (via West 11 `t' and Green Hill Road), 45% to and from the north and northeast (via Danebo, Beltline and Roosevelt), 15% to and from the east via West 11~' and 15% to and from the south and southeast via Willow Creek Road and West 18`~'. The greatest capacity constraint and challenge to acceptable transportation operations will be the short distance on West 11"' between Willow Creek Road and the Beltline Highway intersections. Other critical elements associated with this site would be the timing of the implementation of two planned projects on the ODOT facilities of West 11'i'~Avenue (Terry Street to Green Hill Road), improvement to urban standards - TransPlan project 333; and the final phase of Beltline Highway improvements between West 11~' and Roosevelt - TransPlan project 312. Prior to completion of these major projects, there will be the need to provide some mitigation on the existing system to accommodate the additional peak hour trips (465 AM, 515 PM) such as widening West 11~' and the Willow Creek Bridge to provide a dual left turn from eastbound West 11 "' to northbound Beltline (widening on Beltline also required to provide two receiving lanes) and adequate baek-to-back left turns from eastbound West 11 ~' to southbound Willow Creek Road (could necessitate dual turn lanes as well). A future anticipated flyover ramp from west to north is also anticipated. Direct access to West 11 `i' at this site is extremely unlikely. The estimated costs of such mitigation could range between $1,500;000 and $10,000,000 (with flyover and widening of Beltline). Westllte Avenue Ed Cone Blvd. This 33.48 acre site (17-04-32-00, TL 606) is currently undeveloped and recently annexed into the City. This site has.a base zoning of I-2 Light,Medium Industrial Zone and special heavy industrial Metro Plan designation. The parcel is bordered on the west and north by wetland restoration area that is part of the WEWP. Assuming that buildout could utilize 90% of the 33.48 acres Page 3 of 4