F-Line to Dudley
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Sorry if this is a stupid question or has already been recently addressed (it's just impossible to keep up with everything)...
Does anyone know if repair/restoration to the old parts of the Lechmere viaduct are part of this project, or entirely separate?
By design it's got to be semi-separate because half of it is concrete arch, half of it is a steel El...and half of the steel El is going to get lopped off for the new alignment. Conditions vary across the length of it. The concrete needs more intensive work. Even since '04 there's been little bits of flaking on it, including some exposed rebar by the Land Blvd. light. Auto emissions haven't been kind to it there, while the arches over the Charles are in much better shape. The steel portion is the most weight-restricted, so they'll be doing some GLT forward-compatible enhancements to the preserved segment of it. But it is in pretty good shape overall, not even flaking off all that much paint today (last paint job was definitely way before '04).