California Asphalt PavementAssociationSpring Asphalt PavementConferenceApril 25, 2013Erik UpdykeLos Angeles CountyDepartment of Public WorksAPWA Co-Chair
“... provides specifications that have general applicability topublic works projects.” “... does NOT test or approve products.” “It is the function of public agencies and private project ownersthat utilize the Greenbook to determine whether productsproposed by a contractor satisfy the Greenbook specificationsor the Special Provisions.”By Way of Explanation, 2012 Edition Is intended to be supplemented by project-specific specialprovisions. Some agencies use as a reference specification.
“Greenbook” is published every three years. In each intervening year, a supplement is published. Second intervening year supplement is cumulative, i.e. itcontains what was in the previous supplement. Copyrighted. Reproduction or usage of the language in theGreenbook by anyone other than those authorized by PublicWorks Standards, Inc. is prohibited. This is why theGreenbook is not a public domain document.
1967: First Edition published. Task force: 4 years,400 persons. Major sponsors/first to adopt: City andCounty of Los Angeles. 1967 – 1995: Written and promulgated by the APWA– AGC Joint Committee. December 1995: Joint Committee Dissolved. January 1996: Public Works Standards, Inc. (PWSI)formed. 1996 – Present: Written and Promulgated by PWSI.
The governing body of the Greenbook Committee and theWATCH Committee. A mutual benefit corporation. Board of Directors:APWA Southern California Chapter 5 DirectorsAssociated General Contractorsof California 1 DirectorSouthern California ContractorsAssociation 1 DirectorEngineering ContractorsAssociation 1 DirectorBNi Publications 1 Director
What is the “Greenbook” Committee?“… an Administrative Committee of Public Works Standards, Inc.which was created for the following purposes:A. To produce a new edition of the Standard Specificationsfor Public Works Construction and the Standard Plans for PublicWorks Construction triennially and annual supplements betweenthe triennial publications.B. To promote the Standard Specifications for PublicWorks Construction and the Standard Plans for Public WorksConstruction and determine the extent of their use by publicagencies.C. To evaluate proposed additions, deletions andrevisions to the Standard Specifications for Public WorksConstruction (hereinafter "Greenbook") and the Standard Plansfor Public Works Construction (hereinafter "Greenbook StandardPlans")…” Operating Policies and Procedures, April, 2010
APWA 17 members Associated General Contractorsof California 6 members Southern California ContractorsAssociation 1 member Engineering ContractorsAssociation 1 member Members at Large (current) 2
PUBLIC AGENCY/PUBLIC UTILITY NUMBER OF MEMBERSLos Angeles County 2Orange County 1Riverside County 1San Diego County 1Ventura County 1City of Los Angeles 2City of Glendale 1City of Long Beach 1City of San Diego 1City of Huntington Beach 1City of Burbank 1City of L. A. Department of Water & Power 1Metropolitan Water District 1County Sanitation Districts of L.A. County 1Southern California Gas Company 1Orange County Sanitation District 1
Specifications New Materials – Underground New Materials – SurfaceAsphalt Task ForceStabilized Base Task ForceConcrete Ad Hoc Standard Plans Special Provisions Guide Editorial Standards Green Materials Task Force Most subcommittees and task forces meet each month, exceptDecember. Subcommittee and task force meetings are open to anyoneinterested in participating. Specs, NMU and NMS need participants!
“…a preprinted set of specifications, comprising botha set of general provisions and complete technicalspecifications for all types of construction andmaterials that the originating agency expectsnormally to cover in their kind of work.”Fisk, Edward R., Construction Project Administration, 3rd Edition, New York, JohnWiley & Sons, 1988, page 7.
Standard Specifications Supplementary Specifications(if any) Special Provisions Specifications = Standard Specs. +
• Part 1 – General Provisions• Part 2 – Construction Materials• Part 3 – Construction Methods• Part 4 – Alternate Rock Products (AC, PCC& Untreated Base)• Part 5 – Pipeline System Rehabilitation
2013 Supplement(Includes Change No. 205NS)• Subsection 203-6 replaced with entirely new 203-6.• Some provisions from 203-7 and 400-4 incorporatedinto new 203-6.• 203-7 NOT USED. [Deleted]• 400-4 NOT USED. [Deleted]
• 203-6.2 Materials.• 203-6.3 Job Mix Formula (JMF) and Mix Designs.• 203-6.4 Asphalt Concrete Mixtures.• 203-6.5 Alternate (Type III) Asphalt ConcreteMixtures.• 203-6.6 Not Used. [Reserved for Superpave]• 203-6.7 Production.• 203-6.10 Sampling.• 203-6.11 Acceptance.
• 203-6.1 General.“… shall be the product of mixing mineral aggregate andup to 20 percent … RAP …” Maximum RAP percentageincreased from 15 to 20.“When so specified in the Special Provisions or shown onthe Plans, … may contain greater than 20 percent RAP and/orbe produced using a warm mix asphalt (WMA) technology.”• 203-6.3.2 Hveem Mix Design Method.No change in mix design method.• 203-6.3.3 Not Used.Reserved for Superpave mix design method.
• 203-6.4.1 Class and Grade..“… designated by class of combined aggregate gradation andperformance grade of paving asphalt, e.g. “C2-PG 64-10.””[Nomenclature revised to include suffix for RAP percentageand WMA technology:No suffix: RAP < 20%. “C2-PG 64-10”“No RAP” Suffix: “R0.” “C2-PG 64-10-R0.”RAP > 20% Suffix: “R” and the % RAP. “C2-PG 64-10-R25.”WMA Suffix: “WMA.” “C2-PG 64-10-WMA.” “B-PG 70-10-R25-WMA.”]
• 203-6.4.4 Composition and Grading.[No changes to mixture composition requirements.]• 203-6.5 Alternate (Type III) Asphalt ConcreteMixtures.[Moved from Part 4, Section 400. No changes tomixture composition requirements.]• 203-6.5.5 Statistical Testing. [Added.]
• 203-6.7.2 Warm Mix Asphalt (WMA) Technologies. “AsphaltConcrete Mixtures may be produced using a WMA technologyif so specified in the Special Provisions.”• 203-6.7.3 Batch Plant Method; and 203-6.7.4 Dryer-DrumMethod. [Separate subsections created and re-formatted.Minor revisions and updates to requirements.]• 203-6.10 Sampling. [Separate subsection created.Reference to CT 125 and testing of RAP stockpiles added.Specifies sampling locations for batch and dryer-drum plants.]• 203-6.11 Acceptance. [Separate subsection created toaddress acceptance criteria.]
Special thanks to the Asphalt Concrete Task Force, Tom Williams,LaBelle-Marvin, Chair. The “Greenbook” has a long history of usage by local agencies inSouthern California. The “Greenbook” is consistent with the intent of standardspecifications, but does not contain, nor is intended to, all of thespecifics needed for comprehensive specifications. Participation on subcommittees and task forces is at an all time low.For the “Greenbook” to continue as a sustainable entity, new andbroader participation from public agencies and consultants isneeded. THANK YOU FOR YOUR SUPPORT!