Pooled Fund Partners

Institute for Transportation

Institute for Transportation
2711 South Loop Dr, Suite 4700
Ames, IA 50010-8664

Phone: 515-294-8103
Fax: 515-294-0467
E-mail: InTrans Communications

Copyright © 2018, Iowa State University. All rights reserved.

Recent Updates


Click on the map to go to each state's homepage or on the links above for more information on the study.

Welcome to the TPF-5(213) website, made possible through the partnership of the Missouri Department of Transportation (MoDOT, the lead state), Iowa State University (ISU, the principle investigator), the Federal Highway Administration (FHWA), the University of Minnesota (UofM), the Minnesota Department of Transportation (MnDOT), Debra S. Haugen, LLC (DSH), and state partners: California, Colorado, Illinois, Indiana, Iowa, Minnesota, and Wisconsin DOTs.

The primary goal of this study is to address research needs of state DOTs to determine the best practices for the use of recycled asphalt shingles (RAS) in asphalt applications.

Field Notes (Blog)

TPF-5(213) Final Report

The Institute for Transportation at the Iowa State University has released the final report for TPF-5(213), 'Performance of Recycled Asphalt Shingles in Hot Mix Asphalt'. Technical Briefs on the individual state demonstration projects can be found on the state pages.

The researchers would like to extend special thanks to Joe Schroer and Bill Stone at the Missouri Department of Transportation (MoDOT), Scott Schram at the Iowa DOT, Greg Johnson at the Minnesota DOT (MnDOT), Mike Prather at the Indiana (INDOT), Judith Ryan at the Wisconsin DOT (WisDOT), Roberto DeDios at the Colorado DOT (CDOT), and Abdul Dahhan at the Illinois DOT (IDOT) for their support in the development and construction of the demonstration projects. The research work was sponsored by Federal Highway Administration (FHWA) TPF-5(213) and the Transportation Pooled Fund (TPF) partners: Missouri (lead agency), California, Colorado, Illinois, Indiana, Iowa, Minnesota, and Wisconsin DOTs.