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26 Years
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Emergency
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Expert Construction Engineering Solutions in Watertown, CT
Founded in 2000, Siefert Associates has grown from a one-person operation to a team of 35+ professionals with offices in Connecticut and New York. Our core values of honesty, integrity, and work-life balance guide every project, serving clients across North America. Specializing in construction engineering, we deliver tailored solutions for large-scale infrastructure projects, combining advanced modeling with field-tested expertise. Our team's 150+ years of combined experience in engineering, project management, and field operations ensures safe, efficient, and innovative outcomes. We prioritize client collaboration, maintaining open communication 24/7 to meet urgent needs and tight deadlines.

Our contractor-friendly drawings consistently pass approvals quickly, reflecting our commitment to quality and practicality. With a focus on the New York City metropolitan area, we've expanded to serve projects in New England, the Mid-Atlantic, Midwest, and Canada. Our leadership team brings decades of hands-on experience from top engineering firms, ensuring technical excellence and client satisfaction. We measure our success through our clients' success, building long-term relationships based on mutual trust and shared values. From temporary support systems to complex bridge construction, we provide engineering solutions that balance creativity with precision.
Services
Structural Engineering Demolition Engineering Erection Engineering Geotechnical Engineering Accelerated Bridge Construction Heavy Lift and Rigging Additional Engineering Services
Details
  • Year established: 2000
Highlights and features
  • We offer 24/7 responsiveness for urgent project needs
  • Our team has 150+ years of combined construction engineering experience
  • We guarantee rapid approval of contractor-friendly working drawings
  • Our leadership includes licensed engineers with field experience
  • We serve clients across 17+ states and international locations
Services
Structural Engineering
We design and analyze custom structures for challenging projects, considering applied loads, deflections, and site constraints. Our services include temporary support systems, bridge jacking, and concrete formwork. Utilizing advanced modeling tools ensures structural adequacy throughout all project phases.
Demolition Engineering
Our team engineers safe demolition procedures for bridges, buildings, and power plants. We account for structural deterioration, equipment loads, and temporary support requirements to minimize risks during dismantling operations for both common and unique structures.
Erection Engineering
We provide comprehensive erection analyses and temporary support designs for bridges and buildings. Our services include elevation control planning and collaboration with erectors to ensure predictable field execution of complex structural installations.
Geotechnical Engineering
Our geotechnical services support temporary and permanent structures through excavation support, pile foundations, and slope stability analysis. We use advanced software to develop site-specific solutions incorporating client-preferred construction methods.
Accelerated Bridge Construction
We specialize in rapid bridge construction using lateral slide and SPMT methods. Our expertise enables completing major projects within tight timeframes through prefabricated elements and contractor collaboration.
People
Vincent Siefert
President & CEO
Founded Siefert Associates in 2000 after 13 years as a contractor. Developed expertise in project management and construction engineering through roles at major firms. Holds PE licenses in multiple states.
Scott Halsey
Executive Vice President, COO
26-year transportation infrastructure veteran with experience at top firms. Manages operations, business development, and HR. Licensed in NY with a Master's in Structural Engineering from NYU.
Andrew Ritter
Senior Vice President
Licensed engineer in CT, MA, and NY with expertise in structural solutions. Combines architectural and civil engineering background to visualize complex structures and solve construction challenges.
Questions
What construction engineering services do you offer?
We provide structural, demolition, erection, geotechnical, and accelerated bridge construction engineering services, along with heavy lift and rigging solutions for complex infrastructure projects.
Which areas do you serve?
We operate across 17 US states including NY, CT, NJ, and CA, with projects in Canada and throughout North America.
Do you offer emergency engineering support?
Yes, our team provides 24/7 emergency services with immediate response for urgent construction engineering needs.
How do you ensure project quality?
We combine advanced modeling tools with field experience to create detailed working drawings that consistently pass approvals quickly.
What makes your firm different?
Our unique combination of field experience, technical expertise, and client-focused approach delivers practical solutions for complex projects.