Final Report Pavement and Sidewalk Management Update Mansfield, Massachusetts PREPARED FOR Mr. Lee M. Azinheira Public Works Director Town of Mansfield Six Park Row Mansfield, MA 02048 PREPARED BY 101 Walnut Street PO Box 9151 Watertown, MA 02471 617.924.1770 DECEMBER 2018 Mansfield, MA Pavement and Sidewalk Management Update Table of Contents 1 Introduction ................................................................................................................... 1 2 Pavement Management ............................................................................................... 2 The Pavement Inventory and Condition Evaluation ..................................................................... 3 Treatment Bands ......................................................................................................................................... 4 3 Existing Condition – Pavement .................................................................................... 5 Backlog of Work .......................................................................................................................................... 6 4 Budget Analysis – Pavement ........................................................................................ 8 Scenarios Explored ..................................................................................................................................... 8 Summary of Budget Results ................................................................................................................... 9 Pavement Condition Map ..................................................................................................................... 10 5 Sidewalk and Ramp Overview ................................................................................... 12 Sidewalk Attributes .................................................................................................................................. 12 Ramp Attributes……. ................................................................................................................................ 13 6 Sidewalk and Ramp Conditions ................................................................................. 16 7 Sidewalk and Ramp Backlog Cost ............................................................................. 25 Sidewalk Repair Costs ............................................................................................................................. 25 Ramp Repair Costs ................................................................................................................................... 26 8 Appendices ....................................................................................................................... Appendix A: Pavement Unit Costs .......................................................................................................... Appendix B: Pavement Backlog Report ................................................................................................ Appendix C: Sidewalk and Ramp Inventory Summary ................................................................... i Table of Contents Mansfield, MA Pavement and Sidewalk Management Update List of Tables Table No. Description Page Table 1 Treatment Band Descriptions ............................................................................................. 4 Table 2 Summary of Miles and Dollars of Outstanding Work ............................................... 6 Table 3 Budget Table ............................................................................................................................. 9 Table 4 Sidewalk Backlog ................................................................................................................... 26 Table 5 Ramp Backlog ......................................................................................................................... 26 List of Figures Figure No. Description Page Figure 1 Typical Pavement Deterioration Curve ............................................................................ 3 Figure 2 PCI Distribution ......................................................................................................................... 6 Figure 3 Miles of Outstanding Work ................................................................................................. 7 Figure 4 Dollars of Outstanding Work .............................................................................................. 7 Figure 5 PCI Projections .......................................................................................................................... 9 Figure 6 Backlog Projections ............................................................................................................... 10 Figure 7 Pavement Condition Map .................................................................................................. 11 Figure 8 Sidewalk and Ramp Location Map ................................................................................ 15 Figure 9 Ramp Condition Chart ......................................................................................................... 1 6 Figure 10 Ramp Material Chart ............................................................................................................ 17 Figure 11 Sidewalk Condition Chart ................................................................................................... 17 Figure 12 Sidewalk Material Chart ...................................................................................................... 1 8 Figure 13 Ramp Condition Map ........................................................................................................... 2 3 Figure 14 Sidewalk Condition Map ..................................................................................................... 24 ii Table of Contents Mansfield, MA Pavement and Sidewalk Management Update List of Photos Photo No. Description Page Portland Cement Concrete Ramp in Excellent Condition ............................. 19 Portland Cement Concrete Ramp in Good Condition ................................... 19 Portland Cement Concrete Ramp in Fair Condition ..................................... 20 Portland Cement Concrete Ramp in Poor Condition .................................... 20 Hot Mix Asphalt Ramp in Excellent Condition .............................................. 21 Hot Mix Asphalt Ramp in Good Condition .................................................... 21 Hot Mix Asphalt Ramp in Fair Condition ...................................................... 22 Hot Mix Asphalt Ramp in Poor Condition ..................................................... 22 iii Table of Contents Mansfield, MA Pavement and Sidewalk Management Update Introduction The Town of Mansfield retained Vanasse Hangen Brustlin, Inc. (VHB) to perform a condition evaluation of all town-maintained roadways, sidewalks and sidewalk ramps as the basis for the implementation of a web-based asset management system. Starting with inventories previously developed in 2003 and updated in 2009, VHB performed on-site visual inspections on all roadway, sidewalks, and sidewalk ramps on the 120.6 miles of town-maintained roadway. The inventory was updated with newly accepted roads, new sidewalk construction, and each feature was evaluated individually for its current surface condition. The comprehensive database is mapped using Geographic Information Systems (GIS) software to facilitate presentation and planning. The roadway feature inventory was imported into the web-based SAM IS (Smart Asset Management and Inventory System) to facilitate analysis of the network, including budget analysis, reporting, and developing prioritized project plans. The following chapters present the findings of the roadway pavement study and the sidewalk and ramp inventories. 1 Mansfield, MA Pavement and Sidewalk Management Update Pavement Management Pavement management is the practice of planning for pavement repairs and maintenance with the goal of maximizing the value and life of a pavement network. To accomplish this, a community needs to have several repair techniques in its arsenal and the knowledge of when to apply each of these. This is where pavement management comes into play. With a comprehensive database of road conditions, pavement management software can predict when to perform various repairs on a road network. Of course, engineering judgment is required to finalize any road program, as no software model can take every variable involved in making a repair decision into account. The software system is a great springboard to help a community start planning its road program each year and is an excellent method of storing the repair data. A key fundamental in pavement management is the value of preservation treatments, which are the application of low-cost preventive measures to a road in fair condition, before it deteriorates to a condition that requires a much more expensive rehabilitation, as presented by the following graphic. 2 Mansfield, MA Pavement and Sidewalk Management Update Figure 1 Typical Pavement Deterioration Curve Will cost $17‐$22.50 Here The Pavement Inventory and Condition Evaluation Developing the pavement inventory includes the following three steps. 1. Defining Pavement Management Segments: Each road contains one or more pavement management sections. A pavement management section defines the limits of previous construction or