American River Levee Award

admin — Tue, 16 Apr 2013 23:39:08 +0000

The U.S. Army Corps of Engineers Sacramento District and its contractor, Magnus Pacific Corporation, have been awarded the American Society of Civil Engineers Sacramento Section – 2012 Flood Control Project of the Year award – for their work on an American River levee.
RGDL was hired by Magnus Pacific to monitor noise and vibration levels as per U.S. Army Corps of Engineers specifications. RGDL’s work involved deployment of seismographs and sound level meters between the construction area and existing residences to continuously quantify noise and vibration levels. Weekly reports were provided to the contractor who in turn, submitted the reports to the Corps of Engineers. The project also included nighttime construction activities.
http://www.spk.usace.army.mil/Media/NewsStories/tabid/1033/Article/9837/sacramento-levee-project-earns-2012-flood-control-project-of-the-year-award.aspx

ECS

admin — Tue, 22 Jan 2013 19:36:05 +0000

Are you adopting or considering the adoption of NFPA 72 for your building? If so, RGDL can help.

Joel Lewitz, P.E., RGDL’s principal in charge of AV design attended a national workshop on Emergency Communication System (ECS) Speech Intelligibility. One hot topic was Chapter 24 of NFPA 72 which requires an intelligible voice announcement system. Depending on the situation, this could apply to health care facilities, schools, high rise office buildings, military installations, transportation terminals, tunnels, etc. If this is of concern to you, RGDL has the solutions and tools for the design and commissioning of ECS and other mass notification systems.

For questions or inquiries, please contact Joel at 415.464.0150 x322 or jlewitz@RGDLacoustics.com

“The New AV World”

admin — Fri, 07 Sep 2012 18:16:08 +0000

The Voice, a newsletter in Northern California for NECA, the National Electrical Contractors Association, www.norcalvdv.org, interviews Joel Lewitz of RGDL on changes and new technology in today’s audiovisual world. To view the entire article click on the attached PDF. The_VOICE_2Q12_FINAL NEWSLETTER 6

September 5, 2012

Marysville Ring Levee

admin — Fri, 06 Jul 2012 00:02:54 +0000

RGDL has restarted the sound and vibration monitoring at the Marysville Ring Levee for the 2012 construction season. The US Army Corps of Engineers is sponsoring a levee strengthening project in the Yuba River Basin to protect the residential area in Marysville, California. RGDL is helping Magnus Pacific and Raito satisfy the Corps’ sound and vibration specification while they conduct deep soil mixing (DSM) improvements. RGDL conducted the continuous sound and vibration during the 2011 construction season and has now restarted the monitoring for the 2012 season.

http://www.youtube.com/watch?v=AEGt0N1YUCU
Harold S. Goldberg, P.E., LEED Green Associate
Principal

July 5, 2012

RGDL Anniversary

admin — Tue, 31 Jan 2012 09:58:22 +0000

Rosen Goldberg Der & Lewitz, Inc. celebrated its 9th year in business on February 26, 2012.

February 26, 2012

Joel Lewitz, FASA

admin — Sun, 22 Jan 2012 19:35:55 +0000

We are pleased to announce that Joel A. Lewitz, PE has been elected a Fellow of the Acoustical Society of America. Election to Fellow is based on “notable contributions to the design of electroacoustics systems for architectural spaces”. Joel has been awarded this honor based on more than 40 years’ experience in sound and audiovisual system design for performing arts, health care, corporate interiors, athletic, civic and educational facilities.

January 31, 2012