The Connecticut Dept. of Transportation has a $5-billion plan to de-elevate a two-mile stretch of Interstate 84 that runs right through downtown Hartford. Naturally, residents are concerned.
As with every DOT, ConnDOT has been hosting public outreach meetings to explain design alternatives and potential impacts. One resident was particularly concerned about the visual impacts of removing a wall from a historic park, fearing it would expose parkgoers to the sight of the interstate highway, says Richard Armstrong, ConnDOT's transportation principal engineer.
Because it can moderate the damaging effects of earthquakes, base-isolation is a technique used primarily in seismically active regions. ENR takes a look at some of the largest applications of base-isolation technologies in the world.