"The contractor Simplex's personnel involved in the construction of the bridge were booked for negligence that resulted in the incident, killing one person," said Deputy Police Commissioner K G Patil.
The Simplex men were booked under various IPC sections, which include 337 (causing hurt by act endangering life or personal safety of others), 338 (causing grievous hurt by act endangering life or personal safety of others), 304A (causing death by negligence) etc, he added.
A labourer identified as Suraaj Mukherjee (40) was killed and seven others sustained injuries after two girders of the bridge collapsed after slabs fell on the ground at Shanti Nagar in Wadala.
The Eastern Freeway Project, which will connect P D'mello Road and Ghatkopar, is scheduled to be completed in December 2012.