MTA officials admit that work along 2nd Ave has created unforeseen problems with “fragile” buildings amNY reported.

Officials said that they did not properly ensure that buildings along the 9-mile subway line were structurally sound before starting to dig, forcing some tenants to evacuate their homes for weeks.

The MTA pledged to do thorough assessments, particularly of “fragile” buildings, as the construction continues.

“It really proved to be much more problematic and challenging than was originally thought,” Michael Horodniceanu, president of MTA Capital Construction, said recently.

For regular reports on the state of the 2nd Ave line check out the Second Avenue Sagas blog.