Is it true that they are no longer making Marshall Mix?

Effective for projects submitted for letting on May 3, 2012, (EI 11-020) Section 403 Hot Mix Asphalt (HMA) Pavements for Municipalities of the New York Standard Specifications has been deleted. This means that the HMA known as Marshall Mix is no longer being included in the New York State DOT Standard Specifications. This does not mean that it is not being made. It serves to verify that the NYSDOT does not certify the Quality Assurance of Marshall Mix production; that is, the production of Marshall Mix is not certified by NYSDOT to be in compliance with a state standard. It is up to the local municipality to certify that any material identified as ‘Marshall Mix’ is made in conformance to the desired specifications of the municipality.

The Marshall Mix material identified in Section 403 is no longer allowed to be used on any projects financed with federal funds. Chapter 9 of the Procedures for Locally Administered Federal-Aid Projects (PLAFAP) Manual requires NYSDOT design standards and specifications be used for all federal-aid local transportation projects. The failure to use NYSDOT design standards and specifications may result in the denial of reimbursement funds.

The use of ‘Marshall Mix’ on locally funded projects is still permitted; however, it is not a NYSDOT certified product and should be used at the risk and verification of the municipality. EI 11-020 states “Deleting the specifications will also clarify that the Department does not review mix designs or provide production quality assurance for Section 403 items.” As a note, the NYSDOT has not provided QA for Marshall Mix for many years; because of this misconception it was important that it was removed from the state standard specifications. The removal of Marshall Mix from the State standards specifications was to prevent any false sense of quality assurance which may have been perceived by having it in the standard specs.

Resources

Engineering Instruction (EI) 11-020, Deletion of Standard Specifications Sections 303, 403, 618 and 703-09, New York State Department of Transportation, October 2011.

Procedures for Locally Administered Federal-Aid Projects (PLAFAP) Manual, Chapter 9, Design Standards and Construction Specifications, New York State Department of Transportation, March 2011.

Questions regarding this EI should be addressed to the Materials Bureau’s Field Engineering 2 Section.
Contact Zoeb Zavery at zzavery@dot.state.ny.us, (518) 485-5277
or Russell Thielke at rthielke@dot.state.ny.us, (518) 457-4585.

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