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Negdc presentation   december 2013
 

Negdc presentation december 2013

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    Negdc presentation   december 2013 Negdc presentation december 2013 Presentation Transcript

    • Connecticut River Crossing 2013 Hadley/Hatfield, MA David M. Grande Director – Gas Engineering & System Operations Berkshire Gas Company 115 Cheshire Road Pittsfield, MA 01202-1388 Phone 413-445-0265 dgrande@berkshiregas.com Paul Scarpa Senior Engineer Berkshire Gas Company 115 Cheshire Road Pittsfield, MA 01202-1388 Phone 413-445-0383 pscarpa@berkshiregas.com Confidential – Not for internal distribution or public release. 1
    • Berkshire Gas Company – Located in Western Massachusetts Connecticut River 12/19/13 22
    • Company Information • 38,000 Customers • 1,500 Miles – Mains & Services • 1 Satellite LNG Plant • 3 Propane Air Plants • 120 Employees • 160 Years Old • 6 City Gate Stations 12/19/13 33
    • Project Context – Connecticut River Crossing • Installation of approximately 2,250 linear feet of 12-inch coated steel gas main. The project commences on Bridge Lane in Hatfield, MA and continues beneath the Connecticut River, terminating on Huntington Rd. in Hadley, MA. Approximately 1,600 linear feet of the proposed gas main shall be installed beneath the Connecticut River via directional drilling. The remaining 650 linear shall be installed within an open trench. • Project is being done to provide additional firm volumes to Amherst College and provide additional system reliability for the Hadley/Amherst area. • New main will run in parallel with existing 6-inch coated steel main which was installed in 1959 when the Company brought Natural Gas service to the Hadley/Amherst area. 12/19/13 44
    • UMASS & Amherst College – Amherst MA UMASS – Central Heating Plant Amherst College – Central Heating Plant 12/19/13 55
    • Confidential – Not for internal distribution or public release. 6
    • Project Mile Stones • Engineering for Project began in November 2012 • The following was performed: • • • • • • Survey – current easement (Hadley) town ROW (Hatfield) Test Borings – both sides of the river Preliminary Design Plans- used to submit wetland filings Wetland Delineation Notice of Intent • Wetland Notice of Intent submission to the Hadley and Hatfield Conservation Commissions and Mass DEP • Filing Notice of Intent with the Natural Heritage and Endanger Species Program (NHESP) Army Corps of Engineers (ACOE) Category 2 Permit filing • Frac Out Plan Final Design Plans and Details • Final Permit Approval Received in September 2013 • 12/19/13 77
    • Project Milestones • Request for Proposal (RFP) was issued on 8/19/2013 • • • 12/19/13 Bidders • Hemlock Directional Boring Inc. • C.B. Utility Co., Inc. • JS Rae Construction • Directional Technologies, Inc. • Mears Group Inc. RFP’s were due on 9/3/2013 Project Awarded to JS Rae on 9/9/2013 88
    • Horizontal Directional Drilling (HDD) 12/19/13 99
    • HDD Steps  Pilot Hole  Reaming  Pull Back 12/19/13 10 10
    • Current Conditions Milestone Schedule Hadley Existing 6” Coated Steel Main - 1959 Hatfield 12/19/13 11 11
    • Current Conditions – Hatfield Side Milestone Schedule Hatfield – Westside – River Approx. 900 ft. wide 12/19/13 12 12
    • Current Conditions – Hadley Side Milestone Schedule Hadley – Eastside 12/19/13 13 13
    • Connecticut River Crossing Milestone Schedule – Hadley Side Existing 6” Coated Steel Main Company has existing 25ft. Permanent and working easement 12/19/13 14 14
    • Connecticut River Crossing Milestone Schedule - Hadley Side Environmental Protection Installed 12/19/13 15 15
    • Connecticut River Crossing – Hadley Side Milestone Schedule Swamp Mats were required on the Hadley Side 12/19/13 16 16
    • Connecticut River Crossing – Hatfield Side Milestone Schedule 1,680 ft. – 12” Coated Steel – Induron Warrior 100 Coating – Designed for HDD Remaining 12” Coated Steel – Pritec 40 Mil Coating 12/19/13 17 17
    • Connecticut River Crossing – Hatfield Side Milestone Schedule Preformed 100% X-Ray of Pipe Welds 12/19/13 18 18
    • Connecticut River Crossing – Hatfield Side Milestone Schedule 12/19/13 19 19
    • Connecticut River Crossing – Corrosion Control Milestone Schedule Warrior 100 Pipe Coating & Rubber Pipe Rollers 12/19/13 20 20
    • Connecticut River Crossing – Corrosion Control Milestone Schedule Powercrete R-95 Epoxy Based Coating Used for Welds – Designed for HDD 12/19/13 21 21
    • Connecticut River Crossing – Initial Pressure Test Milestone Schedule Final Pressure Test – 300 Psig – 4 Hours - Deadweight 12/19/13 22 22
    • Connecticut River Crossing - Drilling Milestone Schedule During the pilot hole drilling, a directional guidance system is used to navigate the pilot hole along its pre-designed profile. Down Hole System – Wire Line 12/19/13 23 23
    • Connecticut River Crossing - Drilling Milestone Schedule 12/19/13 24 24
    • Construction - Drilling Milestone Schedule 12/19/13 25 25
    • Connecticut River Crossing - Drilling Milestone Schedule Shallow Water Depths 12/19/13 26 26
    • Construction - Drilling Pilot Hole Milestone Schedule – 120ft. 30” & 130ft. 12” Conductor barrel were used • • Used to minimize the potential of a drilling frac out and/or ground collapse near the entry location. The conductor barrel created a clear pathway through the soft soil conditions so that drilling could begin in more preferable geology 12/19/13 27 27
    • Construction – Drilling Pilot Hole Milestone Schedule 12/19/13 28 28
    • Construction – Drilling Pilot Hole Milestone Schedule Final Pilot Hole Maximum Depth was 60 ft. Below Existing River Bed, 12/19/13 29 29
    • Construction - Reaming Milestone Schedule 22” ream & 18” ream were used. The 22” ream was used to go through the bedrock 12/19/13 30 30
    • Construction - Reaming Milestone Schedule Reaming consisted of pushing from the drill rig in Hadley and pulling with excavator in Hatfield. 12/19/13 31 31
    • Construction - Reaming Milestone Schedule 12/19/13 32 32
    • Construction - Reaming Milestone Schedule 12/19/13 33 33
    • Construction - Reaming Milestone Schedule 12/19/13 34 34
    • Construction – Pull Back Milestone Schedule Pull back began at approx. 12:30 PM on 11/20/2013 and took 5 Hrs. to complete. 12/19/13 35 35
    • Construction – Pull Back Milestone Schedule 12/19/13 36 36
    • Construction – Pull Back Hatfield Side Milestone Schedule 12/19/13 37 37
    • Construction – Pull Back Hadley Side Milestone Schedule 12/19/13 38 38
    • Construction – Testing & Tie-In Milestone Schedule 12/19/13 39 39
    • Construction – Testing & Tie -In Milestone Schedule 12/19/13 40 40
    • Questions David M. Grande Director – Gas Engineering & System Operations Berkshire Gas Company 115 Cheshire Road Pittsfield, MA 01202-1388 Phone 413-445-0265 dgrande@berkshiregas.com 12/19/13 41 41