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Join us for the New LRAD Public Safety Siren Ribbon Cutting - September 7, 2019

Save the Date: LRAD Ribbon Cutting
Saturday, September 7, 2019
12:00 noon at City Hall

Join Mill Valley City Councilmembers and public safety officials as we celebrate the deployment of our new Long Range Acoustic Device (LRAD) emergency sirens. Join us for a demonstration of the device, emergency preparedness information and resources. More details coming soon - stay tuned!


The City of Mill Valley is excited to announce the installation of new and more powerful emergency sirens to replace our aging system. These sirens are known as “LRADs” – Long Range Acoustic Devices - and they will project both siren and voice recordings to alert and inform community members during a large-scale disaster. These new sirens are the first land-based LRAD system in Marin County.

In June, 2019, work crews replaced all five sirens and conducted tests to ensure system readiness.

What will they sound like? Click here to hear the monthly test message.

Remember - Please don’t call 911 when you hear sirens. Use 911 for life-threatening emergencies only.

“We believe that the purchase and installation of LRAD goes a long way to improve the resiliency and redundancy of our communication systems,” Fire Chief Tom Welch said. “LRAD systems are highly effective in communicating warnings, instructions, and notifications throughout incident sites and over vast areas during life-threatening events.”

When is the monthly test?

Emergency Long Range Acoustic Devices (LRAD) Sirens Testing is held on the first Saturday of each Month at Noon on the following 2019 dates: August 3rd, September 7th, October 5th, November 2nd, and December 7th.

Where are the emergency LRAD sirens? 

The LRAD sirens are located in Cascade, Blithedale and Warner Canyons, plus Scott Valley and atop Mill Valley City Hall.

In May, 2019, the City tested the LRAD system at our Annual Evacuation Drill. The test, along with information about the installation of the new system, is featured in an ABC10 documentary series, FIRE - POWER - MONEY: California's burning crisis and how it's going to cost us all. 

Mill Valley is featured in the FIRE and MONEY segments of the documentary.

FIRE - To watch the entire 33 minute video, click here.

FIRE - To jump to the section on Mill Valley, click here.

MONEY - To watch the entire 33 minute video, click here.

MONEY - To jump to the section on Mill Valley, click here.

The LRAD installation is part of the Fire Departments 6 Fire Preparedness and Prevention Enhancement Initiatives, adopted by the Mill Valley City Council after the 2017 Sonoma/Napa conflagrations. Read more. The City Council authorized the purchase of the LRAD system in January, 2019, which cost an estimated $418,000.

Can we reach you in an emergency? Sign up today for AlertMarinNixle and click here to learn more about how to stay informed during emergencies.

If you have any questions regarding this project, please contact Battalion Chief Scott Barnes at 415-389-4139 or sbarnes@cityofmillvalley.org