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Showcase Projects

Showcase Projects

Siefert Associates, LLC has successfully completed hundreds of projects since its inception.


Below is a sample of the projects that highlight our construction engineering capabilities in action. Imagine how our abilities can make your next project successful and profitable.


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Show All Structural Engineering Demolition Engineering Erection Engineering Geotechnical Engineering Accelerated Bridge Construction Engineering Heavy Lift and Rigging Engineering Additional Support Services
Bayonne Bridge - Replacement of Main Span Roadway & Approach Structures
Bayonne Bridge - Replacement of Main Span Roadway & Approach Structures
Emergency Declaration for SR 860 Culvert Failure
Emergency Declaration for SR 860 Culvert Failure
Green Line Extension Design Build Project
Green Line Extension Design Build Project
LaGuardia Airport Central Terminal Building Replacement Project
LaGuardia Airport Central Terminal Building Replacement Project
Long Island Rail Road Expansion Project - Floral Park to Hicksville
Long Island Rail Road Expansion Project - Floral Park to Hicksville
Moynihan Station Phase II
Moynihan Station Phase II
Reconstruction of I-84 - City of Waterbury
Reconstruction of I-84 - City of Waterbury
Repair/Rehabilitation of East Cambridge (Lechmere) Viaduct
Repair/Rehabilitation of East Cambridge (Lechmere) Viaduct
Replacement of Kosciuszko Bridge over Newtown Creek
Replacement of Kosciuszko Bridge over Newtown Creek
Rt 7 Hackensack River Wittpenn Bridge
Rt 7 Hackensack River Wittpenn Bridge
The New NY Bridge and the Former Tappan Zee Bridge
The New NY Bridge and the Former Tappan Zee Bridge

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