Joseph Smith

John Sinagra
Vice President

Keith Henderson
Financial Secretary

Joseph Plagenza

Lisa Menino
Recording Secretary

Leading the way

Building and Maintaining
a Better City Together

Sena Local 9158 is a United Steel Workers local union. Sena represents public employees in Massachusetts. Our members do some of the most important jobs in the City of Boston every day to keep the City thriving and moving forward.

Below are just some of the important jobs our members take pride in doing. Click the link below to learn more about our union and it's members.

Community Centers
Emergency Medical Services
Construction Projects

Member News

2022 City of Boston Opt-Out Program

f you choose to receive coverage under another medical plan outside of the City of Boston's group coverage, you may waive the City of Boston plan and receive an annual Opt-Out payment through your paycheck. The Annual Enrollment period for ...
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Massachusetts Communities Deserve
Good Jobs and Climate Justice.

Recently, we sent an InfoAlert ( to tell you about our concerns regarding efforts in Massachusetts to ban the use of natural gas in new and renovated buildings. We are proud of the work our USW gas workers do every ...
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Rapid response

It’s Time to Put Workers First.

Last week, we told you about two bills, a Senate passed bill, S. 1260, the United States Innovation and Competition Act (USICA), and its counterpart in the House, H.R. 4521, the America COMPETES Act. In the coming weeks, these two ...
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Rapid response

Persistence Pays Off!

Steelworker priorities are moving in the Senate. We know that when we continue to push for legislation that supports our core issues, it may take some time, but that engagement works in the long run. We saw that first hand ...
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Union steel workers in Ukraine are asking for our help

We recently received a request for aid from the Trade Union of the Metalworkers and Miners of Ukraine, a fellow affiliate of the global union federation, IndustriALL.These union members make steel, just like we do, at ArcelorMittal’s Kryvyi Rih facility.Many of them ...
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2022 ANNUAL ENROLLMENTMONDAY, MAY 2 - FRIDAY, MAY 20, 2022Dear City of Boston Employee,Annual enrollment for the City of Boston’s health insurance benefits will take place from May 2nd – May 20th, for coverage effective July 1st, 2022. During this ...
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Your Union
Your Voice

Steelworkers are men and women of every ethnic background from cities and towns in every region of our countries,

United Steel Workers

USW democracy begins at home, in more than 1,800 local unions throughout Canada, the United States and the Caribbean. Membership is open to all without discrimination.

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USW News

Leading the way

A voice when
workers need a voice.

Established 1986
Member Benefits

A safe, healthy working environment is a right not a privilege.

Mailing address

15 Court Street
Boston, MA 02108

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Contact email

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    Sena Local 9158

    This site is intended to provide a place for instant communication with our membership, creating a means to inform you of the latest news, contact information and upcoming events