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CC 2019-06-11_11a Alternatives for 2019 Street Repairs Project_PP PresentationConsideration of Alternatives for the 2019 Street Repairs Presented by Joe Ririe P.E. & Bill Robeson 6/11/2019 1 Presentation Goals Pavement Basics (Pavement 101) Pavement Preservation Principles Current Pavement System Conditions Consideration of Alternatives Review of Original Plan Discuss the Alternatives 6/11/2019 2 Pavement Basics (Pavement 101) 6/11/2019 3 What Determines a Pavement Section? 6/18/2019 4 Pavement Deterioration Cycle 6/18/2019 5 Pavement Deterioration 6/18/2019 6 The Impact of Sun and Water 6/18/2019 7 The Impact of Heavy Loads 6/18/2019 8 Common Pavement Distresses 6/18/2019 9 Evaluating Common Pavement Distresses 6/18/2019 Alligator cracking Block cracking Distortions Longitudinal / transverse cracking Patches Rutting / depressions Weathering / Raveling 10 Evaluating Pavement The Pavement Condition Index 100 – 91 = Excellent 90 – 71 = Good 70 – 51 = Fair 50 – 31 = Poor 30 – 0 = Failed 6/18/2019 Developed by the U. S. Army Corp of Engineers during World War II and standardized by ASTM, the PCI is an objective and rational basis for determining pavement condition and establishing maintenance priorities. 11 6/18/2019 Pavement Preservation Principles 12 Applying the RIGHT TREATMENT to the RIGHT PAVEMENT at the RIGHT TIME using the RIGHT MATERIALS 6/18/2019 13 Pavement Preservation Timing 6/18/2019 14 Good Pavement Management Best-First “Top Down” Management: focuses maintenance and rehabilitation on the best streets in the system. Interim procedure. Worst-First “Bottom Up” Management: focuses maintenance and rehabilitation on the worst streets in the system. Interim procedure. Critical-Point Management: focuses maintenance and rehabilitation on streets above rather than below a critical PCI. Most economical in the long run. 6/18/2019 15 Pavement Condition vs. Maintenance/Rehabilitation Cost 6/18/2019 16 Maintained Road System 6/18/2019 17 10 Year PCI Trend 6/18/2019 18 The Original Design Plan James Way (Improve over 2.5 years) Digouts (completed 2018) Curb Ramps (2019) Overlay & Striping (2020) Allocated funds (2019) $1,440,070 for Construction $144,008 for Construction Contingencies 6/18/2019 19 Analysis of Issues The 2019 Rainy Season was more than expected and damaged pavements extensively West Branch Street (Oak Park Blvd to East Grande Avenue) Traffic Way (East Branch Street to 101 On Ramp) Previous Digout Repairs On James Way will hold effectively for 1-2 years 6/18/2019 20 6/18/2019 West Branch Street (near Woman’s Club) West Branch Street (near The Library) 21 6/18/2019 West Branch Street (near Trader Joe’s) West Branch Street (near Panera Bread) 22 6/18/2019 Traffic Way (near Mobile Gas Station) Traffic Way (near Car Dealership) 23 6/18/2019 Traffic Way (near Car Dealership) Traffic Way (near Fire Station No. 1) 24 6/18/2019 James Way (Completed Digouts) James Way (Completed Digouts) 25 The Proposed Alternative 2019 Base Bid: West Branch Street - Digouts & Striping (~$1,400,000) Bid Alt 1: Traffic Way - Digouts & Striping (~$320,000) Bid Alt 2: Refresh Striping on James Way 2020 Curb Ramps on James Way 2021 Overlay & Striping on James Way 6/18/2019 26 6/18/2019 Questions? 27