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CHAPTER 2: RANGE OF ALTERNATIVES <br /> 2.6 Alternative 4B: Considerations <br /> North - Bullfrog Road * Provides an alternative route for Roslyn <br /> Alternative 4B was formulated to investigate and Suncadia. <br /> whether enhancements outside the interstate ' Could provide a connection or paralleling <br /> system could meet the identified project non-motorized route to the Palouse to <br /> requirements.This option concentrates Cascades State Park Trail. <br /> on a route less impactful to undisturbed • Provides a new emergency route for the <br /> areas around the outlet of Lake Cie Elum communities if a major failure occurs on <br /> and the riparian area of the Cie Elum River Interstate 90. <br /> and establishing a more parallel collector- • Creates a new fire break and access for <br /> distributor route north of 1-90, commencing wildland firefighters. <br /> at Bullfrog Road just south of Suncadia • Grading for a roadway would result in major <br /> and Roslyn and connecting to 1-90 at MP land transformation to the existing area <br /> 70.Spanning approximately 10 miles,this along the corridor. <br /> alternative involves both new construction . This volume of new roadway in a forested <br /> and upgrades to existing roadways. Parts of area near streams is a very high risk <br /> the route will run alongside existing power to culturally sensitive areas (fatal flaw <br /> line right-of-ways and access roads.The new element). <br /> roadway will feature two 12-foot lanes in . This alternative could provide economic <br /> each direction with 6-foot shoulders adjacent growth opportunities if land use zoning <br /> to each lane. Additionally, certain existing changes were modified. <br /> roadways like Bullfrog Road, Jenkins Drive, . Impacts to ESA listed fish and terrestrial <br /> Heron Drive, and Sparks Road (East and West) species as well as to aquatic resources. <br /> will be widened and straightened. Currently, <br /> • Potential impacts to historic and cultural <br /> these roads have one lane in each direction, <br /> with lanes approximately 12 feet wide. sites, as well as parks and recreational <br /> facilities. <br /> Figure 2-9 shows a conceptual cross-section for . Could impact wildlife connectivity. <br /> Alternative 4B. Figure 2-10 presents the general <br /> alignment for the proposed alternative. <br /> L A <br /> Figure 2-9 Alternative 4B—Conceptual Cross-Section <br /> VOLUME I: FEASIBILITY REPORT 1-90 Corridor Easton to Cle Elum Feasibility Study 1 21 <br />