Spring 2012 Vol. 20, No. 2

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Pavement Conference: Asphalt, Concrete, and More

More than 220 people were on hand for this year’s TERRA (Transportation Engineering and Road Research Alliance) Pavement Conference in St. Paul—more than any other year in the conference’s 16-year history.

TERRA sponsored the conference in cooperation with the Center for Transportation Studies, the U of M Department of Civil Engineering, the Minnesota Local Road Research Board, the City Engineers Association of Minnesota, the Minnesota County Engineers Association, MnDOT, Minnesota LTAP, the Minnesota chapter of the American Public Works Association, and the Minnesota Street Superintendents Association.

Audio recordings and slides of all the presentations, as well as videos for selected presentations, are available at the TERRA website.

America’s low-volume roads need help—and they’re getting it!
Speakers described the impact of heavy vehicles on low-volume roads and shared advice on how to keep them in service with limited budgets.

Creative concrete pavements
Greg Felt, who has extensive pavement design experience with MnDOT and Washington and Scott Counties, described two concrete paving projects that included inventive solutions that cost little—or actually reduced cost.

Full-depth reclamation with foamed asphalt
David Jones of the University of California’s Pavement Research Center discussed his extensive experience with project selection for full-depth reclamation with foamed asphalt (FDR-FA).

A study of alternative bidding
Dave Johnson, now a transportation consultant and previously the director of MnROAD research, discussed a three-year evaluation of alternative pavement type selection.

David Janisch receives 2012 Rohrbach Award
The Gerald Rohrbach Distinguished Service Award was presented to David Janisch, MnDOT’s pavement management engineer.

CEAM Conference

Permeable pavement–how is it working?
Speakers from the Cities of Bloomington and Shoreview shared highlights from their permeable pavements.

Mill-and-overlays—strategies and solutions for cities
Speakers at the City Engineers Association of Minnesota annual meeting in January said the steps to success lie in knowing the existing pavement conditions and understanding what methods to use for those conditions.

ADA transition plan: What you need to know now
Workshop presenters offered perspectives from three levels of government—state, county, and city—to help all agencies meet both the requirements and spirit of the law.

Training and Education

Online gravel road training open for registration
Minnesota LTAP’s first online distance-learning course—Gravel Road Maintenance and Design—is open for registration.

Turfgrass mixes; online course and resources
U of M researchers are working with the MnDOT to identify salt-tolerant turfgrass mixes for use on Minnesota roadsides. Other resources are the U of M’s College of Continuing Education online Turfgrass Pathology course and the U of M Extension turfgrass management web page.

News from our coordinator
 A personal look from our coordinator about new training options.

Maintenance

Living snow fences: win-win-win
In a recent webinar, Gary Wyatt, an agroforestry professor with the University of Minnesota Extension in Mankato, described a study of living snow fences and highlighted a benefit-and-cost-analysis tool that enables MnDOT to further its living snow fence program.

Tire shreds’ lightweight, sheer strength overcome poor soils
Recycled-tire engineered aggregate was a cost-efficient remedy on a road project outside of Mankato on CSAH 12. The project had been delayed when an embankment leading to a bridge failed.

LRRB Update

OPERA spotlight: Stormwater Pollutant Removal in Rain Gardens
Grand Rapids plans to continue implementing a modified rain garden design where feasible. 

Awards & Honor

St. Paul Department of Public Works accredited
The St. Paul Department of Public Works became the first Minnesota city to meet the American Public Works Association’s accreditation standards.

Association announces annual awards
The City Engineers Association of Minnesota presented the Engineer of the Year Award and the Project of the Year Award during its January conference.

Information Services

The Shelf
New reports & materials