Motorists traveling on Interstate 494 in Bloomington and on I-94 north of downtown Minneapolis have noticed that many of the green glare screens atop concrete freeway medians have disappeared. Now bright lights from oncoming cars are shining in their eyes, and they'd like that to stop.
"The lights kind of bother us," one Drive reader said. "Fix them or take them all out."
The short response to both suggestions is no and no, said Minnesota Department of Transportation spokesman Kent Barnard.
Most of the green panels were installed in the 1970s and 1980s to shield drivers' eyes from the headlights of oncoming vehicles and prevent the temporary blindness that can result.
Over time, the thin flexible pieces have rusted out and broken off. Others have been hit by drivers or knocked down by snowplows, leaving gaps and reducing their effectiveness.
"We have no plans to replace them," Barnard said.
How come?
For starters, it is not cost effective, he said. But the bigger reason is that MnDOT is building taller medians. Back when many older medians such as those on I-494 between Bloomington and Eagan were put in, they were just 3 to 4 feet high. In recent years, as MnDOT has installed new barriers or replaced old ones, the agency has been building taller medians without glare screens.