Siefert Associates aided in the erection of the new Nassau 1 Interlocking east of Merillon Station Garden City as part of the third track...

In April of 2020 Skanska-Walsh J.V. launched the first of two temporary bridges used during construction of the new LaGuardia Airport in...

Siefert Associates, LLC is continuing to work with Skanska USA Civil to provide construction engineering services related to the barrier...

Congratulations to Siefert Associates' Thomas Orszulak, geotechnical engineer extraordinaire, and his wife Krista on the birth of their...

Siefert Associates, LLC remains operational, delivering 110% efficiency working from home for the 5th week in a row! Everyone at Siefert...

Siefert Associates, LLC prepared working drawings for Halmar International, LLC for the demolition of Bridge 6 over the Union Turnpike in...

In March 2020, Siefert Associates, LLC was selected by American Structural Works to provide construction engineering services for the RFK...

Siefert Associates, LLC continues to provide construction engineering services to 3rd Track Constructors JV. The project involves...

For over a year Siefert Associates has been involved with the 3rd Track expansion of the Long Island Railroad. The project involves 9.8...

Siefert Associates has recently begun work with SPS New England, Inc. providing structural analysis of the existing Lechmere Viaduct. The...