From our family to yours! Siefert Associates would like to wish everyone a happy and safe Thanksgiving!

Last Friday Siefert Associates was a platinum sponsor for the second annual Pre-Holiday Charity Event to support Bridge To Cure and the...

Congratulations to Restani Construction Corp. for the completion of Upper Level Stage 1 on the Henry Hudson Bridge. Northbound traffic...

Big congrats to our Project Engineers, Lucas Morgan, P.E., Thomas Orszulak, P.E., and Thomas Rabinko, P.E. for graduating from the...

Siefert Associates aided in the demolition and erection of the new Nassau Blvd railroad bridge in Garden City, NY as part of the third...

Siefert Associates would like to wish you all a very spooky Halloween this year. Our staff had a great time celebrating at our second...