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Iowa State University--Becoming the Best

Field Evaluation of Alternative Load Transfer Device Locations in Low Traffic Volume Pavements


Principal investigators:

Project status


Start date: 07/30/98
End date: 12/31/03


Sponsor(s): Iowa Department of Transportation

About the research

Abstract: The project seeks to evaluate the effect of reducing the number of dowels in a low-volume pavement transverse joint. Two projects in Union County have been used to conduct the study. One rural pavement on granular base has been outfitted with 20 joints each including no dowels, three dowels, and four dowels in the outer wheel path. A similar study on a county/city street employs ten joints of each pattern and a pavement overlay of an existing asphalt roadway. The joints will be monitored for opening width, faulting, visual distress, and deflection in both wheelpaths for five years to evaluate the performance.