AgdaPkt 2007-12-17 - Laserfiche WebLink

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7C Page 39 L. Cumutative (2U20) With Proiect Impac# an the Blomquist Street/Maple Street lntersecfian Po#ential Impact 7-17: The Blomquist StreetlMapfe Street intersection is expected to operate at L.OS D during the AM peak hour, and LOS F during the PM peak hour, under Cumulative (2020}Without Project Canditians. The addition of project traffic is expected fo result in LOS E in the AM peak haur plus an increase in the average delay at the intersection by more than 5.0 seconds in the PM peak hour. The intersection is also expected to meet the Caltrans "Peak-Haur Volume Warrant" for traffic signal installation during the AM and PM peak hours under Cumulative {202Q) With Project canditions. These effects would represent a significanf cumulative impacf. Mitigation 7-17: Instal! a traffic signa! at the intersection, widen the northbound appraach to include a dedicated feft tum lane and a shared through/right-tum lane, and reconfigure the southbound approach to include a dedicated left turn lane and a shared through/right-turn lane. With signafization and the recommended iane modifications, the in#ersection is expected to operate at LOS C during the AM and PM peak hours under Cumulative (2020}With Project conditions. Alternatively, install a roundabaut at the intersection. With installatian of a roundabout, the intersection is expected to operate at LOS A and LOS B during #he AM and PM peak hours, respectively. Findings: Implementation of either one of the above mitigation alternatives is #easible and would reduce this cumulative impact at the Blomquist Street/ Maple Street intersection to a less-fhan-significant level. V. BIOLOGICAL RESOURCES A. Steelhead and Chinook Salmon Poten#ial tmpact 8-1: The proposed project woufd fill approximately 9.50 acres of estuarine habitat for the steelhead, a federafly listed threatened species, chinook salmon- Ca{ifornia Coastal ESU, also a federalEy listed threatened species, and chinook saimon-Central Val{ey fall/late fa1{ run, a federally listed species of concern and state-listed species of special concern. Construc#ion activ�ties could also resul# in increased water turbidity, contaminant refease, naise, and underwaier shock waves within this habitat. These possible effects represen#a potentially significant impact. Mitigatian 8-1: The Project Applicant shaSL (1}coordinate with NOAA �isheries and CDFG on steelhead and chinook salmon issues; and (2)formulate and implement a Habitat Mitigation and Monitoring Plan {HMMP) for these species to the satisfactian of NOAA Fisheries and CDFG. The HMMP should incfude, but not be limifed fo, the foflowing provisions: 1. The construction contractor shall use a silt curtain around #he area where dredging activities are likely to release sedimen� into Redwood Creek or Smith Slough and where construction activities are directly adjacent to estuarine habitat. Atty/Reso/Reso.1772 �g 121307