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HomeMy WebLinkAbout2018-09-26 e-packet@6:31Wednesday, September 26, 2018 6:31 PM City of South San Francisco P.O. Box 711 (City Hall, 400 Grand Avenue) South San Francisco, CA Municipal Services Building, Council Chambers 33 Arroyo Drive, South San Francisco, CA Special City Council Special Meeting Agenda September 26, 2018Special City Council Special Meeting Agenda NOTICE IS HEREBY GIVEN, pursuant to Section 54956 of the Government Code of the State of California, the City Council of the City of South San Francisco will hold a Special Meeting on Wednesday, September 26, 2018, at 6:31 p.m., in the City Council Chambers, Municipal Services Building, 33 Arroyo Drive, South San Francisco, California. Purpose of the meeting: Call to Order. Roll Call. Agenda Review. Public Comments - comments are limited to items on the Special Meeting Agenda. ADMINISTRATIVE BUSINESS Presentation of the South Linden Avenue Grade Separation Project. (Richard Cho, Principal Engineer and AECOM) 1. Adjournment. Page 2 City of South San Francisco Printed on 10/24/2018 City of South San Francisco Legislation Text P.O. Box 711 (City Hall, 400 Grand Avenue) South San Francisco, CA File #:18-640 Agenda Date:9/26/2018 Version:1 Item #:1. Presentation of the South Linden Avenue Grade Separation Project.(Richard Cho,Principal Engineer and AECOM) City of South San Francisco Printed on 9/20/2018Page 1 of 1 powered by Legistar™ South Linden Avenue &Scott Street Grade Separation Planning StudySouth San Francisco City Council MeetingSeptember 26, 2018 South Linden Avenue and Scott Street Grade Separation Planning StudyA location where a roadway crosses the railroad tracks at the same level (elevation). What is an “at-grade crossing”?Scott StreetLinden Avenue South Linden Avenue and Scott Street Grade Separation Planning StudyVideo at South Linden Avenue South Linden Avenue and Scott Street Grade Separation Planning StudyA bridge that allows the public to travel under (or over) the railroad. What is a “grade separation”?Jefferson AvenueRedwood CitySan Antonio RoadMountain View South Linden Avenue and Scott Street Grade Separation Planning StudyImprove Traffic Circulation/Mobility• Reduce traffic delays caused by gate down times• Improve traffic flow across railroad crossingIncrease Public Safety (vehicular, bicycle, and pedestrian)• Eliminates pedestrian, bicyclist and motor vehicle conflicts with the railroad… this eliminates the potential for accidents• Improve pedestrian and bicycle accessSafer Facility + Less Congestion = Higher Quality of LifeWhy is the Project Needed? South Linden Avenue and Scott Street Grade Separation Planning StudyWeekday Train TrafficTotal Number of Trains (per Weekday)Northbound (NB) Southbound (SB) TotalCaltrain(2018)AM: 20PM: 26Total: 46AM: 20PM: 26Total: 46AM: 40PM: 52Total: 92Caltrain(2022 Projection #)57 57 114High Speed Rail(2029 Projection +)128 trains per day to/from San Francisco with an additional 24 trains starting at San JoseUnion Pacific336# 2022 Projected Values based on Completion of the Peninsula Corridor Electrification Project(from FEIR, December 2014) (Prototypical Schedule)+ 2029 Projected Values based on Blended Service and Completion of the High Speed Rail Project and 2014 CHSRA Business Plan South Linden Avenue and Scott Street Grade Separation Planning StudyProject Location MapTo San FranciscoTo San JoseCity of San BrunoCity of South San FranciscoSouth Linden AveScott StColma Creek1850 feetNI-380 South Linden Avenue and Scott Street Grade Separation Planning StudyFour Alternatives to EvaluateAlternative 2: Hybrid (Track Lowered, Roadway Raised)Alternative 1: Hybrid (Track Raised, Roadway Lowered)Ped/Bike Overpass or Underpass South Linden Avenue and Scott Street Grade Separation Planning StudyFour Alternatives to EvaluateAlternative 3: Rail at grade with Roadway UnderpassAlternative 4: Rail at grade with Roadway OverpassPed/Bike Overpass or UnderpassPed/Bike Overpass or Underpass South Linden Avenue and Scott Street Grade Separation Planning StudyAlternative 1: Hybrid (Track Raised, Roadway Lowered)South Linden Avenue Layout South Linden Avenue and Scott Street Grade Separation Planning StudyAlternative 1: Hybrid (Track Raised, Roadway Lowered)South Linden Avenue Typical Section15.5 ‘ vertical clearance South Linden Avenue and Scott Street Grade Separation Planning StudyHolly Street, San CarlosIssues• Long embankments• Raised tracks• Improved connectivity• Reduced impact to adjacent properties Hybrid Alternative South Linden Avenue and Scott Street Grade Separation Planning StudyAlternative 2: Hybrid (Track Lowered, Roadway Raised)South Linden Avenue Layout South Linden Avenue and Scott Street Grade Separation Planning StudyAlternative 2: Hybrid (Track Lowered, Roadway Raised)South Linden Avenue Typical Section27 ‘ vertical clearance South Linden Avenue and Scott Street Grade Separation Planning StudyAlternative 3: Rail at grade with Roadway UnderpassSouth Linden Avenue Layout South Linden Avenue and Scott Street Grade Separation Planning StudyAlternative 3: Rail at grade with Roadway UnderpassSouth Linden Avenue Typical Section15.5 ‘ vertical clearance South Linden Avenue and Scott Street Grade Separation Planning StudyJefferson Avenue, Redwood CityIssues• Retaining walls• Limits access to adjacent properties• Side street connectivity Underpass Alternative South Linden Avenue and Scott Street Grade Separation Planning StudyAlternative 4: Rail at grade with Roadway OverpassSouth Linden Avenue Layout South Linden Avenue and Scott Street Grade Separation Planning StudyAlternative 4: Rail at grade with Roadway OverpassSouth Linden Avenue – Typical Section27‘ * vertical clearance South Linden Avenue and Scott Street Grade Separation Planning StudySan Antonio Road, Mountain View Issues• Requires 30 ft bridge• Overpass length: 1,100 ft• Requires raising El Camino Real• Major visual impacts• Largest footprint Overpass Alternative South Linden Avenue and Scott Street Grade Separation Planning StudySummary of AlternativesAlt South Linden Avenue Scott Street1Rail ElevatedRoads LoweredRail ElevatedRoad ClosedPed/Bike Tunnel2Rail LoweredRoads ElevatedRail LoweredRoad ClosedPed/Bike Crossing*3Rail At-GradeRoads Fully LoweredRail At-GradeRoad ClosedPed/Bike Crossing*4Rail At-GradeRoads Fully ElevatedRail At-GradeRoad ClosedPed/Bike Crossing** A Ped/Bike Underpass (Tunnel) or an Overcrossing can be designed for this alternative South Linden Avenue and Scott Street Grade Separation Planning StudyAdvantages & DisadvantagesAlternative Advantages DisadvantagesLeast Property ImpactsLowest Cost (Probable)Shoofly Required*Reduces Train Noise(Rail Elevation Lowered)More Property Impacts than Alt 1Shoofly Required*High CostRail Remains At-GradeMore Property Impacts than Alt 1Limits Access to Adjacent PropertiesGreatest Impacts to SidestreetsShoofly Required*High CostRail Remains At-GradeNo Shoofly RequiredGreatest Property ImpactsVisual impactsHigh Cost* Shoofly will result in disruption to traffic on Dollar/ Herman during construction Thank you