Project Background for Trenchless Water Main Replacement Program Major Project Team Members : -City of Livonia and Department of Public Works - Prof.

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1 MI-AWWA / MWEA Joint Conference e August 13, 2010 Soaring Eagle Resort & Conference Center Livonia s Water System Winning Solution in Tough Times Concept to Construction HDPE Pipe Bursting / Prechlorinated Water Mains City of Livonia, Michigan Bruce Kuffer, PE Consulting Engineer Municipal Water and Sewer

2 Project Background for Trenchless Water Main Replacement Program Major Project Team Members : -City of Livonia and Department of Public Works - Prof. Engineering Firm Hubbell, Roth & Clark, Inc. - Prof. Contractor Murphy Pipeline Contr., Inc. - City Residents, Businesses and Customers

3 Project Background for Trenchless Water Main Replacement Program Project Particulars : - City Field Crew first identified project footage in Multiple Breaks & Low Pressure Areas - Residential, Major Cross Streets & Easements with congested utilities, traffic & mature landscaping - 27,000 LF water mains identified for Rehabilitation or Replacement.. 40 to 60 years old Cast Iron mostly - Prechlorinated Plastic HDPE water mains through Pipe Bursting.. Unknown to many communities - Engineering Firm selected in 2006 using QBS (Qualification Based Selection) Process.. Best fit for budget price.. Not established city consultant.. Cost saving & creative approach

4 Project Background for Trenchless Water Main Replacement Program Project Particulars (continued) : - Engineering Firm visited Fort Wayne, Indiana to see prechlorinated installation.. very impressed.. then presented to Livonia DPW, Project Staff and Management - Key Livonia staff Mayor (Jack Kirksey) DPW Director (Pat Hogan) Supt. Water & Sewer (Jim Zambaris) City Engineer (Kevin Roney) - Key Hubbell Roth & Clark staff Project Manager (Dan Mitchell) Principal (Walter Alix) - Key Murphy Pipeline Contractors & Other Companies staff Project Manager (Todd Grafenauer) ISCO Industries, Distributor (Steve Cantwell) Charter Plastics, HDPE Pipe Manufacturer

5 Project Background for Trenchless Water Main Replacement Program Project Particulars (continued) : - Engineering Firm proposed alternate bid choices of materials. Approved Materials - High Density Polyethylene (HPDE, SDR 11) Ductile Iron (poly wrapped, CL 54) Other Materials - Evaluated for Present & Future Projects Pressure Class Ductile Iron Poly-Vinyl Chloride (PVC) - Firm Allowed Bid Contractors to decide construction method *. Trench Excavation (Open Cut) OR Pipe Bursting + Horizontal Directional Drilling (Trenchless) * NOTE: Other Engineering Firms decided on construction method street by street before bidding, no contractor involvement.

6 Project Background for Trenchless Water Main Replacement Program Project Particulars (continued) : - Bid Documents Preparation Open-Cut Base Bid with Pipe-Bursting Alternates: Base Bid = 4,000LF of New 8-12 Main Alternates A & B = Open-Cut vs. Pipe-Bursting - Considered Characteristics of Open-Cut and Pipe Bursting - Log Job Utilizing City GIS with Supplemental Survey - Phased Construction

7 Open-Cut Characteristics Ductile Iron (DI) Pipe Surface Restoration along Entire Length Required - Lawn, pavements, etc. - Mature trees of real concern Full Topographical Survey Required - Property boundaries, trees, utilities, etc.

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9 Pipe-Bursting Characteristics High Density Polyethylene (HDPE) Pipe Temporary Water Service Required Reduced Surface Restoration Required -Appurtenances and service leads - Bends and deflections a problem Limited Background Information Required - GIS (Using existing information)

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12 Construction Contract Pre-Award Meetings Indicated Qualified Contractors Project bid with Open Cut vs. Pre-chlorinated Pipe Bursting 14 Total Bids received June 12, 2007 Bid Opening - Murphy Pipeline ($2.8 million) Base + Alt B (Pipe-Bursting) - Bricco Excavating ($3.0 million) Base + Alt A (Open-Cut & Pipe-Bursting) Recommended Award to Murphy on June 25 th Murphy with Pre-Chlorinated Pipe Bursting Low Qualified $2.8 Million Bids Expired 90 Days after Opening ( ) Would Contractors Honor Bid Unit Prices? YES

13 BEST Construction Package Achieved! Pipe Bursting 24,000 LF from 6 to 8 Dia., 8 to 8, 8 to 12 Horizontal Directional Drilling 3,000 LF to loop dead ends and better pressure distribution Pre-chlorinated Pipe Bursting $210,000 less than Open-Cut and $900,000+ less than initial estimates!!! RESULT = Best Methods and Price Package for City + Savings allowed Bonus Water Main Footage

14 Moving Forward Construction Start Early May 2008 Construction Contract Completion October 15, 2008 Project Scope Remained the Same - 27,000 LF of 8-12 Water Mains - Replace Exist. Water Main 14 Areas & Install New Mains 2 Areas Preliminary i Construction ti Estimate t = $3.75 Million Contractor Award for Project Scope (same) = $2.8 Million Proceeded with Original Recommendation Public Information Program Implemented

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16 Livonia, Michigan Typical Project Routes / Neighborhood Streets Gill Road

17 Field Demonstration / July 31, 2008 Gill Road Pre-Chlorinated Pipe Bursting 450 LF Existing 8-Inch Cast Iron Water Main Replaced with 8-Inch HDPE Plastic

18 HDPE Water Main Pipe Identification

19 Initial Pipe Layout for Heat Fusion Process

20 Fusion Machine Preparing Pipe Ends for Fusion

21 Heat Fusion and Cool Down Phases

22 Fused HDPE Water Main Pipe Bursting Begins

23 HDPE being Installed as Iron Pipe Bursting Begins

24 Open-Cut Observation Trench Pipe Bursting Demonstration ti

25 1 st Entering Trench Approaching Existing Valve

26 Bursting Existing Ductile Iron Valve

27 New HDPE Water Main Moving Toward Branch Line Valve

28 Old Iron Main & Valves Burst New HDPE Water Main Installed

29 Pipe Bursting Head Entering Exit Pit

30 Pipe Bursting Completed 450 LF of HDPE Water Main Installed

31 Livonia s Water System Prechlorinated HDPE by Pipe Bursting Project Results 25,000 LF of existing 6 & 8 Cast Iron replaced with 8 HDPE 4,200 LF of existing 8 &12 Cast Iron replaced with 12 HDPE 1, LF of new 8 HDPE by HDD Average of 470 LF replaced per day

32 Project TEAM Awards City of Livonia HUGE FINANCIAL SAVINGS from strong creative project team members & key staff $900,000+ SAVED over Initial Estimates $210,000 SAVED at the Bid Table Savings Produced More Improvements Original 27,000 LF Increased to 30,300 LF of 8 & 12 HDPE Plastic = 12.2% MORE FOOTAGE PLUS!!!

33 Project TEAM Awards Michigan APWA Project of the Year City of Livonia + Hubbell Roth & Clark, Inc. + Murphy Pipeline Contractors, Inc. Environment Less Than $5 Million State, Regional and National Presentations about the Project by various Team Members PLUS!!!

34 US Conference of Mayors NATIONAL RECOGNITION Mayors Water Council Feature Article Spring 2009 Newsletter (Nationwide id Circulation) i Livonia Mayor Mr. Jack Kirksey

35 National Magazine Article Trenchless Technology Magazine / August 2009 Feature Article

36 Questions & Answers Bruce G. Kuffer, PE Engineer / Consultant.. Municipal Water & Sewer Home Office: Mobile: bgkengineer@acd.net