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document 88 pages

Also attached to this agenda item: Brook Street Drainage Study 2004

Why Do You Think They Call it Brook Street? Friends of History Presentation – Croton Free Library Daniel O’Connor, P.E. Village Engineer Date: 9/16/10 Upper Brook Street Middle Brook Street Lower Brook Street Storm Events Sept 1999 Hurricane Floyd 7.2”(24Hr), 100Year Storm June 2001 Father’s Day Storm 4.9”(24Hr), 10Year Storm Village Watersheds Village Watersheds Watershed Data 442 Acres (342 acres in Village) 12,038 feet long Max. Elevation 603 ft. Receiving Waters: Hudson River Peak storm flows 2 yr. storm – 91 CFS 5 yr. storm – 164 CFS 10 yr. storm – 204 CFS 100 yr. storm – 367 CFS No Official Stream Name (USGS, NYSDEC, unnamed tributary) Brook Street Watershed Computer Model Upper Watershed Area Middle Watershed Area Lower Watershed Area Lower Watershed Storm Sewers Upper Section of Lower Watershed Middle Section of Lower Watershed Lower Section of Lower Watershed History of Development Various maps starting from 1757 to 1937 show the historical development of Brook Street and how the stream was considered. 1797 Map of Cortlandt, York Town and Stephen Town 1853 Map of Lands of Phillip Van Wyck Beer’s Atlas 1868 Sanborn Map 1897 Sanborn Map 1903 Sanborn Map 1911 Lower Brook St Sanborn Map 1911 upper Brook St Sanborn Map 1924 Lower Brook St Sanborn Map 1924 Upper Brook St Sanborn Map 1934 (w/updates) Lower Brook St Sanborn Map 1934 (w/updates) Upper Brook St 1937 Topographical map Lower Brook Street Images of the Watershed Images of the watershed and infrastructure start from the upper watershed area and lead to the Hudson River Arboretum HNGC – Base Flow Supply Arboretum HNGC – Base Flow Supply Kaplan’s Pond Kaplan’s Pond (~2Ac) Kaplan’s Pond: Former Outlet Structure Kaplan’s Pond: Former Outlet Structure Kaplan’s Pond: New Outlet Structure Kaplan’s Pond: New Outlet Structure Kaplan’s Pond: New Outlet Structure Kaplan’s Pond - Turtle Kaplan’s Pond: Drain Pipe Typical stream valley between Kaplan’s Pond and Old Post Rd No. Culvert Outlet at West side of Old Post Road North Culvert Outlet at West side of Old Post Road North (inside view) Culvert Outlet at West side of Old Post Road North (inside view) Culvert Inlet at East side of Old Post Road North (inside view) Culvert Outlet at West side of Old Post Road North (inside view) Stream below Old Post Road North Stream below Garage on Brook St Entrance to box culvert below garage Storm Pipe on Brook Street Metal Culvert connection to arch culvert under Brook Street Culvert under Brook Street (arch: brick and stone) Culvert under Brook Street (arch: brick and stone) Culvert under Brook Street (arch: brick and stone) Culvert under Brook Street connection to box culvert south side of Brook St Start of box culvert on south side of Brook Street Box culvert on south side of Brook Street Middle Brook Street: location of sink hole Sink Hole Forms Sink Hole Enlarges Sink Hole: Box Culvert Stream: culvert to open channel Trash Rack in front of headwall near Conti Electric Trash Rack in front of headwall near Conti Electric View of Trash Rack at headwall near Conte’s Electric (inside) Old Culvert Profile at Lower Brook Street Stream below building at Lower Brook St Stream below building at Lower Brook St Lower Brook Street New Box Culvert Lower Brook Street New Box Culvert (sediment) Stream Flowing into start of NYSDOT Culvert Discharge of NYSDOT Culvert into Metro North Culvert and Hudson River Stream Discharge to Hudson River at Croton Yacht Club Outfall to Hudson River at Croton Yacht Club Culvert Under Rt 9 - Sediment Culvert Under Rt 9 - Sediment Dredging of Yacht Club Marina Hydraulic Dredge in Operation Dredging of Yacht Club Marina Settling/Dewatering Pond at Croton Landing Dredging of Yacht Club Marina Dewater Pond at Croton Landing Yacht Club Marine dredge material being reused at Croton Landing Landscape berm at Croton Landing Yacht Club Pre-dredging water depths Yacht Club Post-dredging water depths House on Lower Brook St supply of sand bags Brook Street Widening Schemes 1936 Brook Street Widening Schemes 1936 The End