the northbound lanes were closed from the battery to 48th street. the southbound lanes were closed south of 18th street, with traffic between 42nd street and 18th street reduced to one lane. eventually inspections revealed that the highway south of 46th street was not structurally sound, and had to be closed to vehicular traffic. the ramps to/from 46th street were configured as the temporary southern terminal for northbound traffic on the highway, and the ramps to/from 57th street were configured as the temporary southern terminal for southbound traffic. the segment north of 57th street carried traffic over the penn central rail yards, and could not be closed as there were no surface streets on which to reroute traffic. this section of miller highway remained in use into the 1980s, and has been since rebuilt.