SFPUC 2001 Alameda Watershed Management Plan

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III. ENVIRONMENTAL SETTING AND IMPACTSJ. TRANSPORTATION AND ACCESS1.0 SETTINGA total of 51 miles of paved roads and 106 miles of unpaved roads and trails are within theAlameda Watershed. The road system consists of approximately 6 miles of interstate highwaysand ramps, 11 miles of state highways, 34 miles of paved roads and streets, 82 miles of unpavedroads, and 24 miles of trails. Limited-access dirt roads are used for maintenance, fire access, andsecurity purposes. There is one active railroad track operated by Union Pacific Railroad thatbisects the Watershed.The Alameda Watershed area is served by a roadway network that includes I-680, SR 84(nonfreeway), and Calaveras Road. Approximately two miles of I-680 traverse the AlamedaWatershed, with two interchanges (Pleasanton–Sunol and SR 84–Calaveras Road) providing localaccess to the adjacent developed areas. I-680 carries 100,000-120,000 vehicles per day in thisarea (Caltrans, 1999). SR 84 (known locally as Niles Canyon Road, Paloma Way, and VallecitosRoad) runs along the northerly edge of the Watershed, connecting to Fremont to the west and toLivermore to the east. SR 84 carries 17,000-23,000 vehicles per day in the vicinity of theWatershed (Caltrans, 1999). Calaveras Road is a two-lane, low-volume roadway that traversesthe Watershed from north to south. Within the Watershed, Calaveras Road provides access tomining and nursery operations, San Francisco Public Utilities Commission facilities, and theSunol-Ohlone Regional Park.1.1 RECREATION ACCESSExisting Public TrailsAs described above, Calaveras Road provides access (via Geary Road) to the Sunol-OhloneRegional Park, managed by the East Bay Regional Park District (EBRPD). Within these areastrails are available to the public for hiking, bicycling, and horseback riding. Access to the OhloneWilderness Trail is by permit only.Sunol Valley Golf CourseThe Sunol Valley Golf Course is located within the secondary Watershed (between I-680 andSR 84) and is accessed via I-680 (Andrade Road exit).NOP 96.223E: Alameda Watershed Management Plan III.J-1 ESA / 930385January 2001
III. ENVIRONMENTAL SETTING AND IMPACTSJ. TRANSPORTATION AND ACCESS2.0 IMPACTS2.1 SIGNIFICANCE CRITERIATransportationTraffic Circulation. The City has not formally adopted significance standards for trafficcirculation impacts, but it generally considers that implementation of the Alameda WatershedManagement Plan would have a significant effect on traffic circulation if it were to:! cause an increase in traffic that is substantial in relation to existing traffic load and capacityof the street system (as defined by local government plans and policies); or! interfere with the existing transportation network, causing substantial alterations tocirculation patterns or major traffic hazards.Parking. The City has not formally adopted significance standards for parking impacts, but itgenerally considers that implementation of the Management Plan could have a significant effect ifit were to:! result in a substantial, unmet parking demand that leads to hazardous pedestrian and trafficconditions.Pedestrian and Bicycle Safety. The City has not formally adopted significance standards forimpacts related to pedestrian and bicycle safety, but it generally considers that implementation ofthe Management Plan could have a significant effect if it were to:! result in a substantial hazard to pedestrians or bicyclists; or! substantially constrain or discourage access to the Watershed.2.2 PROGRAM-LEVEL IMPACTSThis section discusses the potential impacts of implementation of the management actions in theManagement Plan on transportation and access, including development of Sunol Valleyrecreational facilities and other Management Plan traffic and access impacts.Development of Sunol Valley Recreational FacilitiesImplementation of Action pub4 would establish a Watershed Visitor Education Center at theexisting Sunol maintenance facility, and Action sun14 would establish a public recreation areaaround the Sunol Water Temple that would include an interpretive center, picnic and day-usearea, events area with a small amphitheater, trail connections, and other public recreationopportunities. Both of these areas are located in the Sunol Valley north of I-680.South of the I-680 area, Action sun19 would establish a small commercial site near theintersection of I-680 and SR 84; Action sun20 would establish an overnight nature study area toprovide educational programs for school children; and Action sun21 would establish trailNOP 96.223E: Alameda Watershed Management Plan III.J-2 ESA / 930385January 2001
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San Francisco Planning DepartmentAL
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TABLE OF CONTENTSPageIV.MITIGATION
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TABLE OF CONTENTSPageLIST OF TABLES
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I. SUMMARYcomprehensive set of goal
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I. SUMMARYconstruction of facilitie
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I. SUMMARYOperations and maintenanc
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I. SUMMARYmanagement actions. Addit
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I. SUMMARYlimits and mitigations se
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II. PROJECT DESCRIPTION! to provide
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II. PROJECT DESCRIPTION• southern
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II. PROJECT DESCRIPTION4.0 MANAGEME
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II. PROJECT DESCRIPTIONPolicies WQ3
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II. PROJECT DESCRIPTION! walking of
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II. PROJECT DESCRIPTIONdecisions re
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II. PROJECT DESCRIPTIONraw, untreat
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II. PROJECT DESCRIPTION6.0 PHASING
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II. PROJECT DESCRIPTIONApproximatel
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II. PROJECT DESCRIPTIONC. RELATED P
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II. PROJECT DESCRIPTIONE. ENVIRONME
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II. PROJECT DESCRIPTIONAfter the Ma
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II. PROJECT DESCRIPTIONTABLE II-1 (
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CHAPTER IIIENVIRONMENTAL SETTING AN
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III. ENVIRONMENTAL SETTING AND IMPA
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WaterStoragePitWaterStoragePitWater
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AlamedaCreekNiles Sunol WaterReserv
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IV. MITIGATION MEASURESC. GEOLOGY A
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IV. MITIGATION MEASURES3. In implem
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IV. MITIGATION MEASURESF. AIR QUALI
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IV. MITIGATION MEASURESI. AESTHETIC
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IV. MITIGATION MEASURES2.0 MITIGATI
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V. SIGNIFICANT UNAVOIDABLE ENVIRONM
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CHAPTER VIIALTERNATIVESA. METHODOLO
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VII. ALTERNATIVESTABLE VII-1COMPARA
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VII. ALTERNATIVESTABLE VII-1 (Conti
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VII. ALTERNATIVESWatershed patrols,
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VII. ALTERNATIVESemphasizes ecologi
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VII. ALTERNATIVESunder the preferre
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VII. ALTERNATIVESSan Antonio Creek
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VII. ALTERNATIVESstorage under this
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VII. ALTERNATIVESGeology and Soils.
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VII. ALTERNATIVESthat Alameda Count
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VII. ALTERNATIVESand F propose. Min
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CHAPTER VIIIDRAFT EIR DISTRIBUTION
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IX. APPENDICESAPPENDIX IX.ANOTICE O
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IX. APPENDICESB. SPECIAL-STATUS SPE
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CHAPTER XLIST OF ACRONYMSACWDACWRSA
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X. LIST OF ACRONYMSSRUEBUSFWSUSTsWH
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XI. EIR AUTHORS AND CONSULTANTS; OR
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CHAPTER XIISUMMARY OF COMMENTS AND
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XII. SUMMARY OF COMMENTS AND RESPON
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XII. SUMMARY OF COMMMENTS AND RESPO
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SFPUC 2001 Alameda Watershed Management Plan

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