The CTA's seven-month-long Loop Track Renewal project is getting underway April 20th. The Tribune's John Hilkevitch discusses the ins and outs of the $39M project. Executed in 50-hour bursts over 16 weekends, disruption will be significant but less severe than in 2008, the last time serious Loop track work took place. Deterioration of wooden rail ties and rusted rail are the targets. When all is said and done, about half of the Loop's total elevated track will have been replaced. The Loop elevated endures some of the busiest, most grinding traffic anywhere in the country. If it's to function another 100 years, such work is absolutely necessary. [Trib, Photo: Clark Maxwell/Curbed Flickr Group]
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