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Draft Supplemental Environmental Impact Report Page IV.B-35 _
<br /> Forward Inc. Landfill 2014 Expansion Project
<br /> Year 2035 Cumulative Impacts
<br /> With the addition of the proposed project to year 2035 traffic, all study intersections would
<br /> operate at a reduced delay, an unchanged LOS, or an acceptable LOS, with the exception of the --
<br /> following intersections, which are discussed below:
<br /> • Austin Road and Arch Road during the PM peak hour
<br /> • SR 99 and Arch Road in both peak hours
<br /> • SR 99 and Mariposa Road SB Ramp in both peak hours
<br /> • Austin Road and Mariposa Road during the AM peak hour
<br /> • Austin Road and French Camp Road during the PM peak hour —
<br /> As mentioned above, the California Health Care Facility (CHCF) was completed after the 2013
<br /> EIR was prepared, and a signalized intersection was installed at the entrance of the Facility on
<br /> Austin Road. According to the traffic report prepared for CHCF project, the CHCF entrance
<br /> driveway, with traffic signals, would operate at LOS A and C in the 2035 a.m and p.m. peak
<br /> hour, respectively.
<br /> Impact B.6. Potential Impact to LOS at Austin/Arch, SR 99/Arch,and SR 99/Mariposa SB
<br /> Ramp Under Cumulative Conditions. (Revises 2013 EIR Impact B.6)
<br /> Because the 2014 Expansion Project would not generate traffic, or make a contribution to
<br /> cumulative traffic, in the year 2035, there would be no effect on LOS at all study intersections in
<br /> 2035. Therefore, the 2014 Expansion Project would have no impact in 2035.
<br /> The 2013 EIR found that that the previously proposed project would have a significant
<br /> unavoidable impact on the intersections of Austin Road and Arch Road,SR 99 and Arch Road,
<br /> aned SR 99 and Mariposa Road SB Ramp in the Cumulative Year 2035. In its last year of
<br /> operation, 2031, the effects of the 2014 Expansion Project would be similar to, or less than, the
<br /> effects of the previously proposed project evaluated in the 2013 EIR. As discussed above, Arch
<br /> Road was being widened at the time this SEIR was prepared. This widening, which was not —
<br /> incorportated into the traffic analysis for the 2013 EIR, will improve traffic circulation in 2035;
<br /> therefore, traffic operation at its intersection with Austin Road, and the associated LOS, would
<br /> be the same or improved over the level presented in the 2013 EIR. For these reasons, the
<br /> impacts of the previous project, discussed below, represent the worst-case effect of the 2014
<br /> Expansion Project in 2031.
<br /> The 2013 EIR found that the Austin Road and Arch Road would operate at LOS F during the
<br /> PM peak hour in 2035, with a delay of 111.8 seconds under cumulative conditions without the
<br /> project. With the project, this intersection would continue to operate at LOS F during the PM
<br /> peak hour, and the delay would increase to 112.7 seconds. Since the project would add to the
<br /> traffic volume at the intersection, this impact is considered potentially significant.
<br /> With addition of a second northbound left turn lane, operations at the intersection of Austin
<br /> Road and Arch Road would improve to (unacceptable) LOS E. Adding a third left-turn lane to
<br /> the east to north traffic would improve the LOS to an acceptable level;however, a triple turn
<br /> lane is not allowed by City policy.' In addition to the triple left-turn lane, there would need to
<br /> be one or two other eastbound lanes for the other traffic movements. This would result in an
<br /> impractically wide intersection, in which turning movements would be awkward and unsafe,
<br /> ' EDAW/AECOM, Draft Environmental Impact Report,Mariposa Lakes Specific Plan, State Clearinghouse
<br /> #2006022035, March 2007,Table 16-35,page 16-114.
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