Goody Clancy (Arlington’s consultant on the Realize Rosslyn sector plan update) has released the results of a year-long review of the proposal to deck over I-66 in Rosslyn and lease air rights for mixed-use development.
http://www.bizjournals.com/washington/breaking_ground/2015/02/air-rights-development-in-rosslyn-challenging-and.html?page=all
According to the study, current rental rates in Rosslyn wouldn’t support the expense of decking over the highway. If anything happens, it may not happen for another 20 years. There is also concern that such projects could divert investment from the core to the fringe in Rosslyn. But it’s also possible that air rights development could encourage more activity in the center. So they are essentially saying it could be good or it could be bad. Hmm…
Anyway, it people are relying on such developments for improving the Lynn/Lee Hwy intersection, this might not be the best source of funding, not if it won’t happen for 20 years.