Pavement Management Report City Council Presentation May 3, 2016 - - PowerPoint PPT Presentation

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Pavement Management Report City Council Presentation May 3, 2016 - - PowerPoint PPT Presentation

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Pavement Management Report City Council Presentation May 3, 2016 Nick Williams, Public Works Director Eugene Calvert, City Engineer Spencer Maxwell and Justin Brown, Freese and Nichols, Inc. 1 Principles of Pavement Management Pavement

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Pavement Management Report

City Council Presentation

May 3, 2016

Nick Williams, Public Works Director Eugene Calvert, City Engineer Spencer Maxwell and Justin Brown, Freese and Nichols, Inc.

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Pavement Condition Index (PCI)

  • Standard procedure for rating

the condition of a pavement network based on distresses

  • Developed by US Army Corps
  • f Engineers
  • Provides a numerical rating on

a scale of 0 to 100

Principles of Pavement Management

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Principles of Pavement Management

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Pavement Data Collection

Observed Distresses:

  • Alligator cracking
  • Longitudinal cracking
  • Transverse cracking
  • Potholes
  • Repairs and utility patches
  • Raveling and weathering

Alligator cracking, potholes and utility cuts on S. 3rd Ave. Longitudinal and transverse cracking on W. Oak St.

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Pavement Data Analysis

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Pavement Data Analysis

Pavement Type # of Miles # of Square Yards % by # of Square Yards Weighted Average PCI Asphalt 80.2 1,132,522 91.9% 56 Concrete 4.2 56,710 4.6% 89 Brick 3.0 43,750 3.5% N/A Total 87.4 1,232,982 100% 58

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Pavement Data Analysis

MicroPAVER Functional Class Code # of Sections Miles Square Yards % of Network by Sq. Yd. Weighted Avg. PCI Code B Arterial 43 3.68 55,542 4.9% 73 Code C Collector 130 11.47 158,958 14.0% 58 Code E Local 751 65.05 918,022 81.1% 55 Total 924 80.20 1,132,522 56

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Pavement Budget Scenarios

Four budget scenarios, modeled over ten years:

  • Maintaining current funding level, what happens to PCI?
  • Decreases from 56 to 30
  • Increasing funding to $1M per year, what happens to PCI?
  • Decreases from 56 to 41
  • Budget required to maintain average PCI of 56:
  • $2.1M per year
  • Budget required to attain an average 71 PCI in ten years:
  • $3.2M per year
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Pavement Budget Scenarios

$250k $3.2M $2.1M $1M

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Pavement Budget Scenarios

$250k $3.2M $2.1M $1M

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Brick Pavement Analysis

Rating Distribution of Brick Pavement:

  • PCI standard methods do not address brick pavements
  • Each section scored as Good, Fair, and Poor
  • Primary distresses observed: Rutting, Displacement,

Patching, Depressions

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Brick Pavement Analysis

West Green Street, rated “good” North Belknap Street, rated “poor”

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Brick Pavement Analysis

  • Total estimated cost to improve all brick streets to

“Good”: $1,070,000

  • Consider designating brick street districts (downtown,

near historic marker on Vanderbilt)

  • Consider reconstructing heavily traveled streets in poor

condition with asphalt

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Funding Strategies

  • General Tax Levy
  • Reallocation of Sales Tax Revenues
  • Transportation User Fees
  • General Obligation Bonds
  • Community Development Block Grants
  • Special Assessments
  • Franchise Utility Fees
  • Public Improvement Districts
  • City-County Interlocal Agreements
  • Utility Service Fees
  • Roadway Impact Fees
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Recommendations

  • Maintain the database
  • Update PCI scores every three to five years
  • Apply engineering judgement to database recommendations
  • Make pavement maintenance a budget priority