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Las Positas Interchange <br /> <br /> 1. Completion of incomplete portion of the interchange at Route 680 <br /> and West Las Positas Boulevard (not including current two-lane <br /> overcrossing portion proposed for construction), including <br /> appurtenant Las Positas Boulevard roadway widening and <br /> improvement east of the interchange. <br /> <br /> 2. Landscaping and irrigation. <br />-' 3. Right of way acquisitions. <br /> 4. Soundwalls. <br /> 5. Interconnected signal systems. ~ <br /> Stoneridge Interchange <br /> <br /> 1. Construction of interchange at Route 680 and Stoneridge Drive <br /> including appurtenant on and off ramps at Stoneridge Mall, and <br /> structure widening to five lanes. <br /> <br /> 2. Landscaping and irrigation. <br /> <br /> 3. Right of way acquisitions. <br /> <br /> 4. Interconnected signal systems. <br /> Route 680 and 580 Widening <br /> <br /> 1. Construction of two additional lanes (one in each direction) <br /> from Stoneridge Drive Interchange at State Route north to <br /> interchange at State Route 580, including structure widening, <br /> landscaping and soundwalls. <br /> <br /> 2. Construction to two additional lanes (one in each direction) <br /> from interchange at State Route 680/580, easterly on Route 580 <br /> to Santa Rita Interchange, including structure widening, <br /> landscaping and soundwalls. <br /> <br /> Hopyard Interchange <br /> <br /> 1. Construction of additional bridge widening at Hopyard <br /> overcrossing of State Route 580 including appurtenant ramp <br /> improvements. <br /> <br /> 2. Landscaping and irrigation. <br /> <br /> 3. Right of way acquisitions. <br /> <br /> 4. Interconnected signal system. <br /> Santa Rita Interchange <br /> <br /> 3 <br /> <br /> <br />