Forget tunnels from downtown Boston to Logan Airport--the Big Dig is right here at Lincoln Center.

For at least the last week, there has been seemingly endless construction on Broadway and Columbus Avenue, with one detour after another. 66th Street west has been closed at night; parts of Broadway have been closed in both directions; last night, for the second time in the last week, Columbus Avenue was closed between 72nd and 63rd Streets. An army of Con Ed and FDNY trucks appeared yesterday afternoon.

I guess it's amazing that with all of the infrastructure below ground, we don't see this type of extensive repair more often.