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Charles (Rick) Ellis, P.E. BSCE, Michigan State University, 1992 Assistant Division Head – Bridge

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Southeast PBES/ABC Regional peer exchange ARKANSAS State highway & transportation department February 26, 2013. Introduction. Charles (Rick) Ellis, P.E. BSCE, Michigan State University, 1992 Assistant Division Head – Bridge Responsibilities:

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Southeast PBES/ABC Regional peer exchangeARKANSAS State highway & transportation departmentFebruary 26, 2013
slide2

Introduction

  • Charles (Rick) Ellis, P.E.
  • BSCE, Michigan State University, 1992
  • Assistant Division Head – Bridge
  • Responsibilities:
    • Assist Bridge Engineer in daily activities of Division and management of personnel.
    • Oversee AHTD Bridge Design Consultants.
    • Manage new workforce timekeeping system for the Division.
    • No defined role or responsibility for PBES/ABC.
slide3

Organizational Structure

  • Bridge Division is located within the Central Office complex in Little Rock and is under the direction of the Asst. Chief Engineer-Design.
    • Current staff of 29 includes 26 graduate engineers.
    • Staff is divided into 4 Design Sections and 1 Structural Inventory and Rating Section.
    • Design Sections produce plans and specifications for bridges, box culverts, retaining walls, overhead sign structures, etc.
    • Inventory & Rating Section is responsible for load rating and recommending postings for the approx. 13,000 bridge length structures in the State. Also responsible for analyzing bridges for overload vehicles.
  • Project Planning, Programming and Research is undertaken within the Central Office complex in Little Rock and is under the direction of the Asst. Chief Engineer-Planning.
  • Construction and Maintenance and bridge management and inspection are undertaken within 10 districts and is under the direction of the Asst. Chief Engineer-Operations who is located within the Central Office complex in Little Rock.
slide5

Volume of Work

  • How many bridges replaced and at what cost?
    • State: *27 @ $80 Million per year
    • Local: 7 @ $6.6 Million per year

*Does not include bridges replaced with box culverts.

  • How many bridges rehabilitated and at what cost?
    • State: Practically zero
    • Local: Practically zero
    • Recently began a Bond Initiative to repave interstates. Part of program will rehabilitate bridge decks using Hydrodemolition with Latex Modified Concrete Overlays.
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Planning and Decision Making

  • AHTD does not have a process or policy in place to support implementation of PBES/ABC type activities and projects.
  • AHTD does not have a decision making tool or method to assist in the identification and selection of cost effective PBES/ABC type projects.
slide7

PBES/ABC Implementation Barriers

  • AHTD’s greatest challenges or barriers in the effective implementation of PBES/ABC type initiatives and products.
    • Lack of education/experience
    • Detailing and Design, especially seismic
    • Lack of experience among local Contractors
    • Few precast Fabricators within state
slide8

Bridge Types and Materials

  • Common Arkansas Bridge Types & Span Ranges:
    • Steel Beam/ Girder Units, 35’-150’ spans
    • Prestressed Beam/Girder Units, 50’-130’ spans
  • Limited Arkansas Bridge Types & Span Ranges:
    • *Reinforced Concrete Channel Beams; 19’, 25’ & 31’ spans
    • Double Basket Handle Network Tied Arch currently under design by Consultant, 440’ long and approx. 90’ tall.
  • PBES available within Arkansas:
    • *Reinforced Concrete Channel Beams

*Used often in the past on low volume routes. Recent use diminished due to incomplete conformance to LRFD.

slide9

Contracting and Construction

  • Contracting Options commonly used by AHTD:
    • Value Engineering
    • A+C (Cost + Time)
  • Construction Alternatives commonly used by AHTD:
    • Lane Closures or Detours
    • Non-Peak Hour Construction, nighttime closures
    • Non-Peak Hour Construction, weekend closures
slide10

Education and Outreach

  • AHTD does not have any involvement with transportation industry groups in support of PBES/ABC type projects.
  • AHTD has participated in and is interested in continuing participation in domestic PBES/ABC scanning tours.
slide11

PBES/ABC Successes

  • AHTD has no great success in the implementation of PBES/ABC type activities and projects.
slide12

PBES/ABC Future Endeavor

  • AHTD’s future endeavors for implementation of PBES/ABC type projects has not yet been determined.
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