Siefert Associates’ focus on construction engineering means we are skilled structural and geotechnical designers with field savvy. This...

Siefert Associates, LLC was recently awarded a new scope of work from SPS New England, Inc. at their Belden Bly bridge replacement...

Siefert Associates, LLC (SALLC) has been providing erection engineering services for SPS New England Inc. during the bridge replacement...

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...