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Metric to English Conversion

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Metric to English Conversion. California Bridge Construction Forum. March 8, 2006 ... 1993 Department decides to go metric. 1995 FHWA extends the deadline ... – PowerPoint PPT presentation

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Title: Metric to English Conversion


1
Metric to English Conversion
  • California Bridge Construction Forum
  • March 8, 2006
  • Mark Leja, Chief, Division of Design

California Department of Transportation
2
History
  • 1988 Federal law passed to support metric
  • 1991 FHWA say metric by 1996 or no federal
    funds
  • 1993 Department decides to go metric
  • 1995 FHWA extends the deadline
  • 1996 Department fully metric

3
History
  • 2001 FHWA makes metric optional
  • 2003 National Survey most states have gone
    back to English
  • 2004 Customer survey AGC, CELSOC,
    Local Agencies
  • July 2004 Decision to go back to English
  • March 2005 2-year transition plan finalized

4
Current Status
  • Converting Design Manuals and Guidance. Some
    will remain as dual units.
  • Mapping in English on new projects.
  • Finalizing Standard Plans and Specifications in
    English. Available June 2006.

5
Future Plans
  • Begin advertising English projects in
    Summer 2007
  • Complete Metric projects 2006-2010
  • Generally English only 2010 and beyond. Rare
    exceptions may linger (e.g. mega projects).

6
Questions?
7
Innovative Contracting Methods
  • California Bridge Construction Forum
  • March 8, 2006
  • Mark Leja, Chief, Division of Design

California Department of Transportation
8
Traditional Project Delivery
  • Design-Bid-Build (DBB)
  • Specified by Public Contract Code
  • Design must be complete
  • Awarded to the lowest responsible bidder

9
Design-Bid-Build (DBB)
  • Advantages well established and widely
    understood
  • Disadvantages perceived as slow and
    adversarial

10
Design-Sequencing
  • A method of contracting that permits each
    construction phase to
    commence when design for that phase is complete,
    instead of requiring design for the entire
    project to be completed.
  • Project can be awarded at 30 design.
  • Awarded to lowest responsible bidder.

11
Design-Sequencing
  • Two-Phase Pilot Program underway
  • Requires annual status report to Legislature
  • Requires a Peer Review Committee AGC is a
    member
  • Sunset date January 1, 2010

12
Pilot Program Status
  • Phase I began 2000
  • 10 projects selected in 5 districts and 9
    counties
  • 7 projects constructed
  • (4 projects completely closed out)
  • 3 projects in construction

13
 
Current Pilot Projects (Design-Sequencing)
Completed 03-Sac-80/51 Construct Westbound
Lane 04-Ala/SCl-680 Construct Interim Southbound
HOV Lane 04-CC-680 Add HOV Lanes
04-Sol-80 Stabilize Landslide 07-LA-210 Construct
Soundwall 07-LA-405 405/101 Interchange,
Construct Northbound Auxiliary Lane 08-SBd-15 Wide
n Freeway Construction 08-Riv-215 Realign and
Widen 11-SD-15 Widen Freeway and Install
Moveable Barrier (Phases 1-4) 11-SD-905 Construct
Interchange Multiple phases (treated as one
pilot project)
14
Initial Findings
  • Average Time Savings 4 months
  • Capital Cost at award similar to DBB
  • (Engineers Estimate vs. Low Bid)
  • Capital Cost Growth similar to DBB
  • (Awarded amount vs. Final Cost)
  • Support Cost 2-6 greater for Design-Sequencing

15
Lessons Learned
  • Document Control is important
  • Award with first phase 100 complete
  • Less suitable for large, complex projects

16
Future of Design-Sequencing
  • Monitor current projects
  • Apply lessons learned to Phase II
  • SB 1210 authorized Phase II Pilot
  • (4 projects selected and in design)
  • Peer Review Committee continues
  • Annual Reports to the Legislature

17
Design-Build
  • An innovative contracting method where a contract
    for both the design and construction of a project
    is awarded to a single entity.

18
Design-Build Nationwide
  • 27 States have used Design-Build
  • Numerous Cities, Counties and Transit Agencies
  • Authorized by Federal Highway Administration

19
Design-Build in California Who has the authority
to use it?
  • Specified Cities and Counties
  • Schools (K-12, Specified Community Colleges, UC
    and CSU)
  • Transit Authorities

20
Design-Build in California Transportation
Projects
  • Garden Grove (SR-22) HOV Lanes
  • Southbay Expressway (SR-125)
  • Alameda Corridor
  • 91 Express Lanes
  • Orange County Toll Road projects
  • (San Joaquin Hills, Foothill, Eastern, and
    Glenwood Pacific Interchange)

21
Design-Build in CaliforniaLegislative update
  • SB 1026 (I-405 HOV project)
  • Effective January 1, 2007
  • AB 1838 (Strategic Growth Plan)
  • AB 2025 (Niellos proposed bill)

22
Questions?
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