

East 175th Street Bridge Demolition
As part of NYCDOT Project No. HBX1215, “Rehabilitation of the East 175th Street Bridge over Metro-North railroad (MNRR)”, Siefert...


New Mid Suffolk Electric Yard
Siefert Associates, LLC provided crane plans for the erection of LIRR’s new signal huts in Ronkonkoma, NY. Due to the long radius...