[Construction Manual] Update-Manual Change Transmittal 12-4 Issued

Marietta Latus marietta_latus at dot.ca.gov
Thu Oct 11 10:57:10 PDT 2012


Dear Construction Subscriber,

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Manual Change Transmittal (MCT) 12-4 has been issued for Construction
Manual Sections 4-24, 4-27, 4-28, 4-29, 4-41, 4-42, 4-53, 4-54, and 4-73.
It is posted at:

   http://www.dot.ca.gov/hq/construc/manual2001/MCTindex.htm

MCT 12-4 has been incorporated into the Construction Manual [Complete
Download] and the document has been posted with a September 2012 date. As
each transmittal is incorporated, a new date will appear for the complete
download and for individual sections, in the "Current Manual Section"
column on our website. The manual's index has been temporarily removed and
will be updated and republished when the revisions are completed. Hard
copies of the newly issued MCTs and complete downloads will not be
available during the update process.

Manual sections have been revised as a result of Standard Specification,
policy, and procedural changes and may contain updated language,
information, corrections, and references. Bracketed Standard Specification
section
numbers refer to the 2006 Standard Specifications. Change lines located in
the margin of the sections indicate that text has been added, moved, or
corrected. Below are summaries of the section changes issued with this MCT.

The complete manual and sections are posted on our website:

   http://www.dot.ca.gov/hq/construc/constmanual/

Section 4-24, “Stabilized Soils”

   Updates references to align with 2010 Standard Specifications.

   Updates section title to align with 2010 Standard Specifications.

   Adds introductory paragraph encompassing future soil stabilization types
      (e.g., cement stabilization).

   Notes requirement for contractor's QC laboratory certification to be in
   conformance with Caltrans’ Independent Assurance Program.

   Notes requirement that lime source is to be included on authorized
      material source list.

   Notes adoption of "drop pan or calibration pan" method terminology.

   Removes offsite mixing to align with 2010 Standard Specifications.

   Clarifies additional lime requirement when required depth is exceeded.

   Adds "test result disputes" item.

Section 4-27, “Cement Treated Bases”

   Updates reference to align with 2010 Standard Specifications.

   Changes SI units to US customary units.

   Updates SMARA information pursuant to CPB 11-5.


Section 4-28, “Concrete Bases”

   Updates references to align with 2010 Standard Specifications.

   Updates terminology (e.g., concrete pavement, HMA, Bid Item List, etc.).

   Updates SMARA information pursuant to CPB 11-5.


Section 4-29, “Treated Permeable Bases”

   Updates references to align with 2010 Standard Specifications.

   Updates terminology (e.g., concrete pavement and HMA).

   Updates Highway Design Manualreference.

   Clarifies measurement and payment.


Section 4-41, “Concrete Pavement Repair”

   Updates section title to align with 2010 Standard Specifications.

   Updates references to align with 2010 Standard Specifications.

   Updates terminology (e.g., concrete pavement, HMA, and Bid Item List).

   Reorganized to accommodate new concrete repair items within 2010
   Standard Specifications (i.e., 2006 SSPs that were incorporated into the
   2010 Standard Specifications).

   Incorporates new concrete repair information.

   Expands approved brand list information.

   Updates certificate of compliance information.

   Adds manufacturer's recommendation and instruction information.

   Adds and clarifies measurement and payment information.


Section 4-42, “Groove and Grind Pavement”

   Updates references to align with 2010 Standard Specifications.

   Updates terminology (e.g., concrete pavement and HMA).

   Updates California Test Methods.

   Changes SI units to US customary units.

   Corrects reference to MTAG and updated web link.

   Adds information concerning temporary onsite drying of concrete grooving
      and grinding residue.

   Adds additional payment guidance.


Section 4-53, “Shotcrete”

   Updates references to align with 2010 Standard Specifications.


Section 4-54, “Waterproofing”

   Adds information on preformed membrane waterproofing.


Section 4-73, “Concrete Curbs and Sidewalks”

   Updates references to align with 2010 Standard Specifications.

   Updates references to Standard Plan sheets.

   Changes SI units to US customary units.

   Includes additional language concerning layouts (e.g., wheelchair
      ramps).

   Modifies references to "Order of Work."

   Adds language concerning detectable warning surfaces.





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