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HBP Warranties – The Cost Benefit Evaluation Begins

HBP Warranties – The Cost Benefit Evaluation Begins. By: Jay Goldbaum, P.E. Colorado Department of Transportation Pavement Management and Design Program Manager. Presentation Outline. Background of Legislation History of Warranty Projects and Progress to Date

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HBP Warranties – The Cost Benefit Evaluation Begins

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  1. HBP Warranties – The Cost Benefit Evaluation Begins By: Jay Goldbaum, P.E. Colorado Department of Transportation Pavement Management and Design Program Manager

  2. Presentation Outline • Background of Legislation • History of Warranty Projects and Progress to Date • Pavement Evaluation Team (PET) Process • Cost-Benefit Evaluation Committee (CBEC) Process

  3. An ActSENATE BILL 97-128(Enacted Into Law on May 21, 1997)Establishing A Pilot Program To Allow CDOT To Enter Into Contracts That Require A Warranty For Qualified Hot Bituminous Pavement (HBP) Projects.

  4. BACKGROUND: Technical Advisory Committee (TAC): Membership - Private Contractors and CDOT personnel knowledgeable about bituminous paving and USDOT Strategic Highway Research Program. Cost-Benefit Evaluation Committee (CBEC): Membership - 2 representatives from CDOT, 2 individuals from the asphalt paving industry, and 1 independent engineer. Pavement Evaluation Team (PET): CDOT’s HBP warranty specification requires the formation of 3-member PET, 1 representative from CDOT, 1 from industry, and 1 from an independent engineering firm. The PET will conduct annual pavement distress survey and prepare report of the survey results. Specification Development: Joint CDOT and industry Task Force to review specification from time to time.

  5. Implementation Plan Purpose - to develop a program with a limited number of projects and an evaluation plan to determine if HBP short-term materials and workmanship specifications improve the quality of the pavements in a cost-effective manner. 6-year Implementation Plan • Minimum of 2 projects per Region over 6 years. • Maximum of 4 projects per Region over 6 years. • A goal of 12 to 15 total projects targeted. • Annual evaluation reports to be developed. • Final evaluation completed following the 2003 seasons. • Decision on further implementation to be made following final evaluation

  6. Evaluation Plan • Performance (comparison with similar projects). • Adequacy of project selection guidelines. • Adequacy of warranty specification. • Costs (initial, life-cycle cost, maintenance costs). • Level of competition (number of bidders, spread in bids).

  7. History of HBP Warranty Projects • I-25, South of Fountain - constructed 1998 • C-470, Santa Fe Drive to Wadsworth Blvd. constructed 1998 • US-36, E&W of Superior Interchange constructed 1998 CDOT developed the HBP warranty program and the TAC selected three qualified projects for the 3-year warranty program

  8. Additional HBP Warranty Projects • I-70, Eagle to Avon constructed in 2000 • I-25, North of Pueblo constructed in 2000 • US-50, East of Kannah Creek constructed in 2001 • SH-63 South of Atwood constructed in 2002 • I-25, North of Pueblo constructed in 2002 • SH 36, East of Byers, construction starts in 2003

  9. Pavement Evaluation Team Current PET Membership: • Hal Toland - Colorado Department of Transportation • Tom Peterson - Colorado Asphalt Pavement Association • Tom Rolland - ROLLAND Engineering PET Objectives: • To measure the pavement performance according to the criteria established in the specifications; and • To determine what, if any, remedial action is required.

  10. I-25 SB, South of Fountain - Center Longitudinal Crack

  11. I-25 SB, South of Fountain – Repair of Longitudinal Crack

  12. I-25 SB, South of Fountain – Close-up of Repair

  13. I-25 SB, South of Fountain - Rut Measurement

  14. C-470 EB Lanes, Santa Fe Drive to Wadsworth

  15. C-470 Santa Fe Dr. to Wadsworth- Longitudinal Crack along wheel path.

  16. C-470 Santa Fe to Wadsworth

  17. US 36, E&W of Superior Interchange

  18. US 36 E&W of Superior Interchange

  19. Cost Benefit Evaluation Committee • Tim Aschenbrener • CDOT Materials & Geotechnical Branch Manager • Gary Self • CDOT Contracts and Market Analysis Branch Manager • Kevin Anderson • Aggregate Industries Operations Manager • Ken Coulson • Coulson Excavating Company Vice-President • Jim Fife • Western Colorado Testing President

  20. To gather actual cost data including initial costs and maintenance costs of warranted (experimental) and comparable non-warranted (control) projects. To present its conclusions in a report to the House and Senate Transportation Committees at the end of the warranty period or at an earlier date specified by either committee. CBEC OBJECTIVES

  21. REPORT OBJECTIVES • To document the cost-benefit evaluation of the HBP warranty specification and projects. • To report the experience gained from pilot warranty projects and recommend future direction of the short-term materials and workmanship HBP warranties by CDOT.

  22. Report Contents Include Experimental and Control Projects Cost Comparisons: • Contract Costs (Construction) • Maintenance Costs Competition Comparisons: • Number of Bidders • Spread in Bids Performance Comparisons: • PET Reports • Pavement Management Condition Data

  23. CONTROL PROJECT SELECTION CRITERIA: • Year of Construction • Overlay Thickness • Rehabilitation Strategy • Traffic Loads (Design ESAL) • Original Pavement Condition • Comparable Facility Type • Same Regional Location • Comparable Aggregate Sources

  24. DATA GATHERING: • HBP Specifications • HBP Mix Design Data • Roadway Typical Sections • Notice of Award • Bid Tabulations, Estimates, and Low Bid Analysis • Project Location Maps • Pavement Surface Condition Indices

  25. Experimental and Control Project Information: Region 4 Sample Information Region 4: C 0361-157, US 36 - Warranty Project Region 4: C 0761-170, I-76 - Control Project

  26. CBEC Summary:

  27. CBEC Summary: • Contractor bidding competition was similar to control projects. • Performance was similar to control projects. • Contractor added experimental features on 3 warranty projects while no experimental features were added to the control projects

  28. Lessons Learned: • Triggers for the distress should rely on Pavement Management Program (PMP) data. • Re-evaluate distress thresholds with regards to subjective distresses such as segregation and raveling. • Re-evaluate the need for Weigh-In-Motion stations. • Evaluation of the performance on these projects should continue. • Shift more responsibility to the Contractor.

  29. Future Activities: • Re-evaluate CBEC in 2003 • Coordination with PET • Comments from CDOT’s and the Contractor’s Representatives • Re-evaluate Specification and Guidelines

  30. Summary • Background of Legislation • History of Warranty Projects and Progress to Date • Pavement Evaluation Team (PET) Process • Cost-Benefit Evaluation Committee (CBEC) Process

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