The Role of Urban Forests in Federally Mandated CSO Abatement in Syracuse, NY PDF
Preview The Role of Urban Forests in Federally Mandated CSO Abatement in Syracuse, NY
04/15/11 The Role of Urban Forests 1 in Federally Mandated CSO Abatement in Syracuse, NY Stephen Harris, City-County Arborist Syracuse Department of Parks, Recreation & Youth Programs 04/15/11 Syracuse’s Urban Forest 2 04/15/11 3 SYRACUSE’S URBAN FOREST Street Tree Population 1951 = 49,000 Loss of elm 1978 = 39,000 Labor Day Storm 1999 = 32,000 Planting=Removals 2011 = 31,500 Also, 10,000 Park Trees 04/15/11 4 Forestry Division Staff: Arborist, 2 Trimmers, 1 Seasonal ▫ 1400 Inspections, 170-300 plantings ▫ 500 Trims; 300 removals; ▫ 48% Service requests ▫ 25% Inter-departmental referrals ▫ 12% Day-time emergency or call out ▫ 7% Off-hours Emergency ▫ 3% +/- bucket truck used elsewhere 04/15/11 5 Hazard Tree Removal Backlog • Average removal before 2005 = 459 tree • Average removal rates since = 257 trees • About 100 trees removed for sidewalks • Hazard tree population ~800 trees • About 200 are high priority removals 04/15/11 Top 7 Street Trees 6 Sugar Ash 5% Silver 5% 5% Linden Other 6% 41% Crabapple 6% Honey locust Norway 9% maple 23% Ash Are Middle Aged 40 04/15/11 7 35 2300 City-owned 30 ash 25 T N 20 E C R 15 E P 10 5 0 Diameter Class Save the Rain Program Overview Joanne M. Mahoney, County Executive Amended Consent Judgment Combined Sewer Overflow Abatement Compliance Program for Onondaga Lake What is a CSO? 04/15/11 • 1988 – Atlantic States Legal History 10 Foundation files lawsuit against County Onondaga Lake Facts • 1989 – Litigation settled Watershed: 285 Square Miles • Four Amended Consent 1 Mile Wide – 4.6 Miles Long Judgments (ACJ) Average Depth: 35 feet ▫ 1998, 2006, & 2008 ACJs ▫ Reflects evolution in Gray Max Depth: 63 feet Infrastructure Technology employed 1940 – Swimming Banned • 4th ACJ in 2009 authorized use 1970 – Fishing Banned of Gray & Green infrastructure
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