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HomeMy WebLinkAboutPublicPresentation_Shimmo07222017Town of Nantucket Nantucket Harbor Shimmo & Plus Parcels Sewer Project Public Outreach Presentation to Interested Property Owners Shimmo Area July 22nd, 2017 1 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Project Team: •Town Administration •C. Elizabeth Gibson, Town Manager •Nantucket Sewer Department •David Gray, Sewer Director •Weston & Sampson •Laurie Toscano •Drew Patnode •Kent Nichols •Owner’s Project Manager (OPM) •Frank Ayotte, Hazen-Sawyer •Construction Contractor •Robert B. Our Co., Inc. 2 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Agenda •Project Background - A Look Back •Project Status & Details - Current Snapshot •Continuing Project •A Look Ahead •Cost Considerations •Homeowner Responsibilities •Anticipated Schedule •Ways to Stay Connected •Question & Discussion and Community Input 3 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Project Background - A Look Back: •Comprehensive Wastewater Management Planning effort Recommended Sewer Extension Areas in the Surfside WWTF tributary 4 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers 5 Project Background - A Look Back: Water Protection Districts Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers 6 Project Background - A Look Back: Water Protection Districts in Project Areas Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Project Background - A Look Back: •These specific Areas were Voted by Nantucket Town Meeting, April 2016 to proceed to Implementation •Nantucket Harbor Shimmo Area •Plus Parcels Sewer Areas - 4 infill areas •Meadow View Drive Area •Bayberry Lane Area •Tashama/Maclean Area •Green Meadows Area 7 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers 8 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Project Status & Details - Current Snapshot: •Need for Sewer Extension Project (from CWMP) •Basis of Design Report Completed •Refined Areas •Evaluated Technologies/Alternatives •Gravity with Pump Stations •Low Pressure with Grinder Pumps •STEP Systems •Vacuum Systems •SDVS Systems •Hybrid Systems •Recommended a Hybrid System with Gravity and Low Pressure •Developed Preliminary Layouts 9 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Project Status & Details - Current Snapshot: •Refined Sewer Connection Points •Field Survey & Subsurface Investigations •Roadway & Existing Utility Survey •Soil Borings & Geotechnical Investigations •CCTV Investigation for Downstream Capacity Analysis •Development of Plans & Specifications •Sewer Easements for Private Roads •Project Permitting •Natural Heritage & Endangered Species Program •Archaeological Sensitivity Analysis •Conservation Commission Notice of Intent •Nantucket Historic District Commission 10 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Project Status & Details - Current Overall Snapshot: •Properties Served by Proposed Sewer Extensions •Approximately 360 properties to be Connected •Gravity Sewer (approx. 13,000 feet) •Meadow View, Tashama/Maclean & Green Meadows Areas •Including 2 Pump Stations with 5,000 feet of force main •Low Pressure Sewers (approx. 32,000 feet) •NH Shimmo & Bayberry Areas •Low Pressure Approach Required due to Topography •Systems Require Individual Pump Units for Each Home 11 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Project Status & Details - Current Snapshot Shimmo Area: •Properties Served by Proposed Sewer Extensions •Approximately 194 properties to be Connected •Low Pressure Sewers (approx. 25,900 feet) •Shimmo Area •Low Pressure Approach Required due to Topography •Systems Require Individual Pump Units for Each Home •Gravity Sewers (approx. 300 feet) •Small portion of Brewster Road near the Pump Station 12 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers 13 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Current Snapshot: •Bids Opened June 14, 2017 - Two Bids Received •July 5, 2017 – B.O.S. voted to award to low bidder, R.B. Our Co., Inc. (Harwich MA), for the Base Bid Plus Alternate 1, in the amount of $12,049,300. •Contract Execution Ongoing Bid Submitted by Amount (Base Bid plus Alternate 1) R.B. Our Co., Inc. $12,049,300.00 C.C. Construction $18,467,607.50 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Continuing Project - A Look Ahead: •Continued Public Outreach •Town website postings •Local newspaper •Social media: Twitter •Traffic Management •Continued Coordination with Police, Fire, Ambulance & Busses •Advance Notice of Temporary Changes to Traffic Flow & Detours •Project Construction Phase •Contractor to develop Construction Schedule •Off-season Construction Period •Resident Representative on-site during Construction •On-lot Considerations •Individual Property Connections 15 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Continuing Project – Cost Considerations: •2016 Town Meeting Appropriation •Technical, Legal & Administrative Support •Construction Costs •Sewer in roadways •Connection stubs to edge of roadway •Surface Restoration of roadways •Private Property Cost Considerations •Sewer Connection Fee •Privilege Fee •Pipeline & Appurtenances on Individual Property 16 Homeowner Responsibilities: 17 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers On-Lot Construction Examples: 18 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Anticipated Continuing Project Schedule: •Award Construction Contract July 2017 •B.O.S. meeting with Contractor August 9, 2017 •Construction Start September 2017 (Construction will Avoid Summer 2018 Season) •Construction Complete October 2018 19 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Continuing Project - A Look Ahead: Ways to Stay Connected •Town website: www.nantucket-ma.gov/NHS-Plus-Sewer •Local newspaper: The Inquirer & Mirror •Social media: Twitter •Subscribe to receive project news via e-mail •Continuing meeting venues •B.O.S. Meeting prior to Construction - August 9th •Project Contacts during Construction 20 Town of Nantucket Nantucket Harbor Shimmo & Plus Sewers Questions & Discussion 21