Metro is working on a solution to the Harrisburg Line over/underpass problem.
“We want the community involved and for this to be as open and honest as possible,” [Metro Board Chair Gilbert] Garcia said.
Before Metro makes a decision, Garcia said, he wanted residents to have a better sense of the problem. Leaking gasoline tanks left a large swath of contaminated soil about 10 feet down. As long as it is undisturbed, it does not present a threat, officials said.
Metro would need to dig more than 30 feet into the ground and displace hundreds of thousands of cubic yards of dirt, necessitating significant cleanup, to build an underpass. And an underpass would change groundwater patterns, possibly spreading the contamination to other adjacent properties, environmental analysts said.
To proceed with an underpass, officials might have to spend years cleaning and preparing the land for excavation. So far, they’ve spent $8.6 million on planning and design for the planned underpass.
Garcia said the best solution is to build an overpass, but redesign it.
See here for the background. The idea is to redesign the overpass in a way that still allows for vehicular traffic on Harrisburg at the freight rail tracks, which should mitigate the effect on businesses there, and to make it shorter so the intersection at 66th Street is unaffected. Metro’s task is convincing the area residents, who have good reasons to be skeptical, that what they’re proposing could work. The board could still go with the underpass, though it would cost a lot more money due to the need to clean up the underground toxins, when they vote on a recommendation. I hope this all works out in a way everyone can live with.