Building the Bay Area
San Francisco Local 377 of the International Association of Bridge, Structural, Ornamental, and Reinforcing Iron Workers has a century-long history of labor struggle and achievement.
In the early 1900s, several locals represented San Francisco Ironworkers in different areas of the craft. The most prominent organizations were the Bridge and Structural Iron Workers Local 31 and the Architectural Iron Workers Local 78. In 1916, Local 78 secured the eight-hour for its members—an accomplishment that aligned with the global labor movement at the time and helped secure the eight-hour workday as a national standard.
Following an assault by employers, Locals 31 and 78 joined a radical new organization: The Rank and File Federation of Workers of the Bay District. Acting cautiously, the International revoked the new organization and chartered Local 377.
Free-thinking members brought their independent ideas into the newly chartered Local 377, and many claim this spirit survives in the ranks to the present day. Over the decades, the Local grew and developed along with the beautiful city it helped create.
One of the Local’s proudest accomplishments is the Golden Gate Bridge; Local 377 was responsible for dispatching ironworkers to jobs on the Golden Gate Bridge in the 1930s. The Bridge is now a landmark of the city and a symbol of the ironworkers’ trade.
Chartered in 1921 as a mixed local, Ironworkers Local 377 proudly represents over 3,000 men and women engaged in the ironworking industry in the greater San Francisco Bay Area and North Coast. Local 377’s Website is intended to provide current information of interest and facilitate communication with members, contractors and other stakeholders, community and elected leaders, and the general public.
Training the Best - to be the Best!
Ironworkers Local 377 provides second-to-none training for its apprentices who are up for the challenge. Our program’s hands-on learning, classroom instruction and job-site experience all come together to provide our apprentices with the most comprehensive education in the ironworking crafts.
Local 377 Goals
- To organize our industry to raise the standard of living for all Ironworkers
- To foster and promote a safe work environment through safety training and programs
- To provide relevant information regarding political issues to better allow our members to make an informed choice.
- Committed to the Helmet to Hardhards program.