2005 OPERA Projects
Improved Effectiveness of Salt Brine as an Anti-icing and Prewetting Agent
Mankato found that liquid corn salt as an additive to the salt brine solution applied to winter roads resulted in longer-lasting road treatments and reduced need for salting trucks during snow events.
Advanced Warning with Solar-Powered Flashers
Kanabec County tested three different light-emitting diode (LED) flashers to alert drivers to controlled intersections down the road that they might otherwise not notice, especially at night or in inclement weather.
Dust Reduction and Stabilization of Gravel Roads
Gravel roads under heavy use in Kanabec County were treated with a soil stabilization product that increased load capacity and durability while reducing dust.
Construction Project Process Automation
Software and tablet personal computers used by Morrison County construction crews eliminated many duplications of information in the office and field, saving substantial time—in the case of engineering staff, reducing hours worked by almost half.
Cameras for Striping Truck
The cameras on a Washington County striping truck were inadequate for outdoor use. Operators couldn’t view monitors over the glare of sun and the system was susceptible to water leaks. But upgrading to cameras used on large agricultural equipment solved the problem, reducing operator strain and eliminating the retracing of lines.
Blower Attachment to Remove Grass Clippings From Gravel Roads
A blower mounted to the front end of a Marshall County motor grader cleared gravel roads of grass clippings, which not only maintained the safety of the roads but also reduced the cost of replacing gravel that previously would have been discarded.
Rockville X-hesion Testing
A dust-control product was used on Rockville roads to increase the load capacity and minimize dust, but failed to meet standards of success when tested on three roads.
New Road Preparation Technology Prior to Overlay
A flexible slurry system tested on a one-mile section of road in McLeod County improved smoothness, durability, and cost-effectiveness, though the procedure was more expensive than traditional methods.