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In Memorium - R. Barry Whiteaker 14th September 2021

We are sad to share the news of the recent passing of one of our firm partners, R. Barry Whiteaker.

Congratulations to Ryan Skoug on Attaining INCE Board Certification 8th June 2021

Congratulations to Ryan Skoug of ESI Engineering on attaining the Institute of Noise Control Engineering (INCE) Board Certification in Acoustics and Noise Control!

ACI Publishes SP-348, Foundations for Dynamic Equipment 14th April 2021

ACI recently published SP-348, Foundations for Dynamic Equipment, edited by Dr. Carl Nelson, Consulting Engineer at ESI Engineering and member of ACI Committee 351—Foundations for Equipment and Machinery.

ESI Video - “Achieving Acoustic Zen in the Open Office” Webinar 18th March 2021

Ryan Skoug, P.E. (Acoustics/OR) of ESI Engineering was invited by Interior Architects to be a co-presenter for their “Achieving Acoustic Zen in the Open Office” webinar.

ESI Video - ESI Presentation at the 2020 ASA Fall Conference 8th December 2020

Ryan Skoug, P.E. (Acoustics/OR) of ESI Engineering was an invited presenter at the 2020 Fall Conference of the Acoustical Society of America for the session on “Sound Transmission and Impact Noise in Buildings II”. Read more and watch a video of the presentation by clicking the link below.

ESI Invited to Present at ASA 2019 Fall Conference 16th December 2019

Ryan Skoug of ESI Engineering just returned from San Diego, California where he was an invited presenter at the 2019 Fall Conference of the Acoustical Society of America for the session on “Sound Transmission and Impact Noise in Buildings”.

ESI Video - Meeting Room Speech Intelligibility 15th November 2019

ESI recently worked with a client to improve meeting room speech intelligibility for in-person, conference call, and video conference meetings. This video describes the user complaints, the existing acoustic conditions, and a methodology to improve intelligibility in these rooms.

ESI at ASTM 2019 Fall Conference! 8th November 2019

Ryan Skoug of ESI Engineering just returned from Houston, Texas where he attended the 2019 Fall ASTM Conference for the E33 Committee on Building and Environmental Acoustics.

Prime Therapeutics Headquarters 3rd July 2019

ESI Engineering was the lead acoustic consultant to the design team for the new Prime Therapeutics Headquarters.

ESI at ASTM 2019 Spring Conference! 5th April 2019

Ryan Skoug of ESI Engineering just returned from Denver, Colorado where he attended the 2019 Spring ASTM Conference for the E33 Committee on Building and Environmental Acoustics.

ESI at ACI 2019 Spring Convention! 22nd February 2019

Carl Nelson of ESI Engineering has organized a technical session titled "Application of ACI Committee 351 Report on Dynamic Foundations" at the ACI 2019 Spring Convention in Quebec City, Canada.

Regions Birth Center 4th February 2019

ESI provided noise control consulting services to BWBR for the Regions Hospital Family Birth Center.

Cargill World Headquarters 3rd December 2018

ESI was the lead acoustic consultant for the Cargill World Headquarters remodel project.

A New Rating Method for Low-Frequency Impact Noise

ESI has been developing a testing and rating methodology to evaluate low-frequency, or “thudding” footfall noise through multi-family floor/ceiling assemblies that is currently ignored by today’s standardized methods.

InterContinental Minneapolis Airport 15th August 2018

ESI was part of RSP Architect’s design team as the acoustical consultant for the new InterContinental Minneapolis Airport Hotel.

ACI Report on Foundations for Dynamic Equipment 19th June 2018

The American Concrete Institute (ACI) Committee 351 document, ACI 351.3R-18 "Report on Foundations for Dynamic Equipment" was recently published in January 2018.

New AIA CEU Presentation Available on Architectural Acoustics! 6th June 2018

ESI Engineering has recently been certified to give an exciting American Institute of Architects approved presentation on the basics of architectural acoustics!

2017 AIA Minnesota Honor Awards 5th December 2017

ESI is proud to have been a team member on two of the thirteen projects recognized by the AIA Minnesota Honor Awards; the Minnesota State Capitol Restoration and the Ramsey County Library in Shoreview.

Hennepin County Medical Center Specialty Center 5th September 2017

ESI was pleased to be a part of the HCMC's largest expansion project in their history, the Specialty Center.

Getting Your Head Around the New Design Guide 11 7th June 2017

The long-awaited 2nd Edition of AISC's Design Guide 11 (DG11) was made available in 2016. This article will summarize the changes relating to Chapter 6: "Design for Sensitive Equipment and Sensitive Occupancies" and the corresponding portions of Chapter 7 relating to the same topic.

Minnesota State Capitol Restoration 1st May 2017

ESI was pleased to be a part of the restoration work at the Minnesota State Capitol, which has recently wrapped up.

Lauritzen Outpatient Center Open in Omaha 24th March 2017

The Nebraska Medical Center Lauritzen Outpatient Center is now open in Omaha, Nebraska.

Ramsey County Library Now Open! 6th March 2017

ESI provided noise control and acoustical consulting services on the new Ramsey County Library in Shoreview, Minnesota.

Bad Isolation - Some Common Problems Seen in the Field

In most commercial and industrial buildings, you will find some type of vibration isolation on the mechanical equipment. However, there is a good chance that the isolation is not working properly.

A Smaaash Hit! 3rd February 2017

ESI finished up 2016 with a number of notable projects. One that got a lot of visibility (it was featured on the front page of the Star Tribune), was the design of the Smaaash go-kart track at the Mall of America.

Meet ESI's new accountant and office administrator! 16th January 2017

Kerri Stein handles accounting and office administration tasks at ESI.

Annual Institute for Building Officials Presentation 13th January 2017

ESI recently presented "Noise Basics, Measurement and Requirements" at the Annual Institute for Building Officials at the University of Minnesota on January 12th, 2017.

ESI is pleased to welcome a new member to the team! 9th January 2017

Andrew Schmitt will be serving as a Consulting Engineer in Noise Control and Acoustics. Passionate about acoustics, noise control, and problem-solving, he is a great fit to the ESI team.

Meet ESI's New Intern in Noise Control and Acoustics 1st June 2016

ESI is pleased to welcome Arjun Shankar as an Intern in Noise Control and Acoustics this summer. Arjun will be working closely with Tony Baxter and Ryan Skoug on measurements, data analysis, calculations and reports.

The Seven Ways to Reduce Noise 26th January 2016

Learn about the seven basic ways to reduce noise. From increasing distance to using enclosures, or even adding room absorption, the process can be quite simple but give lasting results that people can notice.

Supporting Innovative Design: A Process for Equipment Design & Troubleshooting

Intelligent analysis combines effective communication, cross-disciplinary and system level thinking, smart modeling, solutions analysis, and verification. We think high-level thinking is crucial when trying to find a path forward when confronted with a complex problem.

CRSI "Design Guide for Vibrations of Reinforced Concrete Floor Systems" is Available 6th January 2016

The CRSI has issued a new guide to vibrations of reinforced concrete floor systems. This guide aims to provide a simplified design method for the design professional and general guidelines on how to mitigate vibration issues in new and existing buildings.

New MPCA Guide to Noise Control Available 10th December 2015

As of November 2015, the new Guide to Noise Control in Minnesota is available from the Minnesota Pollution Control Agency. This guide discusses acoustical properties, measurement, analysis, and regulation.

Acoustical Society of America Presentation 3rd December 2015

ESI to present noise control and project experience at the Nebraska Chapter of the Acoustical Society of America in Omaha on December 4th, 2015.

Foundations for Dynamic and Sensitive Equipment

Learn about foundation design for dynamic equipment and how to isolate vibration from sensitive receivers. A discussion of the basics of vibration transmissibility through soil, Lysmer’s Analog, and relevant vibration criteria are made using case studies, sample calculations and practical experience.

Important Facts About Wall STC Ratings 1st December 2015

Learn about wall STC ratings and what to look for to make sure your design is the best it can be. Improvements to the noise control performance, and ultimately cost, of wall assemblies depend on many factors some of which may seem counter-intuitive.

The Pitfalls of Footfall 16th November 2015

Learn about the traps found when performing footfall vibration analysis for buildings and how to avoid them. This topic is of interest to architects or structural engineers designing buildings used for laboratories, imaging, wafer fab, or other vibration sensitive occupancies.

ESI Announces New Brand 12th October 2015

You have known us as the firm that can help you solve your most difficult structural, vibration and noise problems and help make innovation thrive. We are still the same group of hard-working engineers, and now we have a new look!

ESI to Present at Structures Group Seminar Series in October 23rd September 2015

We are excited to announce that ESI will be presenting on vibration design of equipment foundations for dynamic loads to control vibration at the University of Minnesota Department of Civil Engineering on October 30th, 2015.

Monitoring Construction Vibration - A Better Alternative

Monitoring vibration near construction sites is commonly done by contractors and their subs. However, their goal is usually to prevent damage to structures, not to protect sensitive processes, procedures and equipment that may exist in adjacent buildings.

Meet ESI's New Intern in Noise Control and Acoustics 9th June 2015

Madeline Davidson will be working with ESI on noise control and acoustics projects this summer.

Shake It Up! 15th May 2015

An electrodynamic shaker is used to help solve real world problems involving vibration of floors and footbridges. They use electrical current and magnets to oscillate a heavy piston up and down at a specific frequency, or range of frequencies, as controlled by an amplifier.

Northrop Auditorium Renovation Featured in Civil Engineering Magazine 1st May 2015

ESI provided vibration engineering consulting for the cantilever balconies in this massive renovation effort.

ESI is working with BWBR Architects on HCMC expansion 9th April 2015

Our focus will be on controlling vibration and noise for the regional hospital with a vision of “A place of extraordinary care…delivered with the view of innovation, compassion and understanding.

Building a Better Environment for Innovation 24th January 2015

Last year we worked on many challenging projects, and one particularly close to home was the design and construction of an expanded office space.

ESI Goes to Washington 11th November 2014

ESI Engineering organized a technical session titled "Design of Concrete Structures for Vibration Sensitive Environments" at the ACI Fall Convention in Washington, DC. Member of the American Concrete Institute.

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