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

Now that the demolition procedures engineered by Siefert Associates, and carried out by J.R. Vinagro Corporation, have been successfully...

Demolition of the Newport Pell Bridge approaches by J.R. Vinagro Corporation has begun using engineered plans by Siefert Associates. With...

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

Demolition of the existing southbound I-95 viaduct in Providence, Rhode Island has begun by J.R. Vinagro Corporation using plans prepared...

Demolition of the Westbound superstructure of the Rochambeau Bridge in Newtown/Southbury, CT has been completed by Atlantic Coast...

Siefert Associates, LLC provided design services for Skanska Walsh JV in support of the demolition of the GCP flyover ramp at LaGuardia...