Plainfield Completes 7-Siren Emergency Warning System

Plainfield's new emergency siren system is now complete. The city officially finished the project on September 30, meeting its deadline with testing conducted through the final week of the month. Residents heard sirens around the city as part of the testing phase. More testing and training are planned as the system is prepared for full operational use.

The system consists of seven sirens strategically placed across Plainfield's six square miles. Each siren has an audible range of approximately three-quarters of a mile and can broadcast both sound alerts and verbal warnings. The locations include Rushmore Recreational Complex, Mathewson Park, the corner of Watchung and Woodland avenues, Library Park, Hanna Atkins Park, Seidler Field, and Milt Campbell Park. Together, they ensure the entire city can hear emergency alerts.

The Plainfield City Council approved the project in October 2025, less than three months after the second generational storm that had struck the city over the summer. Four lives were lost in that storm. The emergency siren system represents the city's response to that tragedy—a commitment to warning residents when danger approaches.

The project involved coordination across multiple city departments and external partners. The Department of Communications and Technology, under Director Jazz Clayton-Hunt and Deputy Director Rajesh Patel, managed the initiative. The Department of Public Works, the Signal Division, and the Office of Emergency Management cooperated on implementation. Union County provided support to the city.

The total cost of the project was approximately $469,000.

Mayor Adrian Mapp issued a statement Thursday about the system's importance. "The loss of four lives in last year's storm remains deeply felt in our community," Mapp said. "We have a responsibility to turn that painful experience into meaningful action. These sirens are an important investment in protecting our residents, strengthening our preparedness, and providing families with timely warning when danger approaches."

The mayor thanked the project partners and city team. "Protecting our community takes partnership, coordination, and follow-through. I thank Union County for its support and our City team for delivering this important project. Together, we are building a safer and more resilient Plainfield."

For Union County Life readers, the siren system represents Plainfield's response to loss—turning tragedy into infrastructure that will serve the community for years to come.

FAQ

Q: What is the Plainfield emergency siren system?

A: The emergency siren system is a network of seven sirens placed across Plainfield to alert residents to emergencies and approaching danger. Each siren can broadcast both sound alerts and verbal warnings.

Q: Why did Plainfield install this system?

A: The city approved the project in October 2025, less than three months after a generational storm in summer 2025 that resulted in four deaths. The siren system represents the city's commitment to warning residents when danger approaches and strengthening emergency preparedness.

Q: How much area does the siren system cover?

A: The seven sirens are placed so that the entire six square miles of Plainfield can hear emergency alerts. Each siren has an audible range of approximately three-quarters of a mile.

Q: Where are the sirens located?

A: The seven sirens are located at Rushmore Recreational Complex, Mathewson Park, the corner of Watchung and Woodland avenues, Library Park, Hanna Atkins Park, Seidler Field, and Milt Campbell Park.

Q: What can the sirens broadcast?

A: The sirens can broadcast both sound alerts to notify residents of an emergency and verbal warnings that provide specific information about the danger or appropriate response.

Q: How much did the project cost?

A: The emergency siren system cost approximately $469,000. Union County provided support to the city for the project.

Q: When will the system be fully operational?

A: The system was completed on September 30, 2026. Testing occurred through the end of September, and further testing and training are planned before the system is fully prepared for operational use.