Concrete Standoff: Glacier Northwest Drivers Strike Over Pay Equity

TACOMA, WA – April 30, 2026 – The picket lines outside Glacier Northwest facilities in Pierce County have become a fixture, as ready-mix concrete drivers today mark one full month of their unfair labor practice (ULP) strike. The drivers, represented by Teamsters Local 313, walked off the job on April 1, escalating a contentious contract dispute with the CalPortland subsidiary over what they describe as significant and unjust disparities in wages and benefits.

Negotiations have ground to a halt, leaving the drivers in a determined standoff. The union asserts that its members in DuPont perform the exact same work as their CalPortland counterparts in neighboring King County but receive substantially lower compensation. This core grievance has fueled the strike and galvanized the workers, who are now facing off against a company that has begun utilizing replacement workers to maintain operations.

"Glacier Northwest Teamsters do the same work as CalPortland's other drivers in Washington state, yet the company denies them the fair wages and respect they have earned," said Nick Lansdale, Secretary-Treasurer of Teamsters Local 313, in a statement. "Rather than bargaining in good faith, CalPortland's proposals would deepen inequality and undermine the livelihoods of hardworking Teamsters in Pierce County."

A Fight for Parity

The heart of the dispute lies in a simple comparison. According to the union, drivers who clock in for the same parent company just an hour's drive to the north enjoy a more robust compensation package. For the striking workers, this isn't just about a pay raise; it's a matter of principle and professional respect. They argue that geographical location should not dictate such a vast difference in value for identical labor within the same corporate structure.

This sentiment is palpable on the picket line, where drivers have maintained a 24/7 presence. John Silver, a driver with seven years of experience at Glacier Northwest, framed the decision to strike as a necessary response to the company's actions.

"The fact that CalPortland would bring in scabs just proves the value we provide to this company and reaffirms the decision we made last month to go out on strike," Silver stated. "All we are asking for is to be treated with the same respect and fairness that CalPortland treats drivers who live an hour away from us. We are ready to stay here as long as it takes to get a fair contract."

The union has condemned the use of replacement workers as an aggressive, anti-union tactic designed to break the strike rather than resolve the underlying issues at the bargaining table. The presence of these workers has only strengthened the resolve of the striking Teamsters, who see it as confirmation of their essential role in the company's profitability.

Legal Shadows and a Contentious Past

This labor dispute is not occurring in a vacuum. It unfolds under the legal shadow of a significant, recent Supreme Court decision involving the very same company. In the 2023 case Glacier Northwest, Inc. v. Teamsters, the court ruled on a dispute stemming from a 2017 strike involving a different union chapter, Teamsters Local 174, which represents drivers in King County.

In that incident, drivers went on strike after concrete had been loaded into their trucks, and the company subsequently sued the union for property damage when the concrete hardened. The Supreme Court's 8-1 decision found that federal labor law did not shield the union from state-level lawsuits for damages if it failed to take reasonable precautions to protect company property. This ruling was widely seen as a potential shift in the balance of power, creating new financial risks for unions engaging in strike actions.

While the circumstances of the current strike by Local 313 are different—focused on stalled contract negotiations and characterized by the union as a ULP strike—the historical precedent of the company's willingness to pursue aggressive legal action against a striking union looms large. The designation of this as an "unfair labor practice" strike is a critical legal distinction. If the National Labor Relations Board (NLRB) ultimately finds that Glacier Northwest engaged in unlawful conduct that prompted the strike, the striking workers are afforded stronger legal protections, including rights to reinstatement, than those in a purely economic strike.

Ripples in the Regional Economy

As the standoff enters its second month, concerns are growing about its potential impact on the Puget Sound's booming construction industry. Ready-mix concrete is the lifeblood of modern construction, essential for everything from foundations and high-rises to sidewalks and infrastructure projects. A prolonged disruption in its supply can create significant bottlenecks, leading to project delays and increased costs.

While the full economic impact has yet to be quantified, the strike injects a level of uncertainty into a market already dealing with tight deadlines and supply chain pressures. Developers and contractors in Pierce County and surrounding areas are watching the dispute closely. If the strike continues to drag on, the ripple effects could spread, potentially slowing the pace of development in one of the nation's fastest-growing regions.

The union continues to call on CalPortland and Glacier Northwest leadership to abandon what it calls stall tactics and return to the table for good-faith bargaining. For now, the drivers remain committed to the picket line, steadfast in their demand for a contract that they believe reflects the true value of their work. With both sides deeply entrenched, the path to a resolution remains unclear, and the concrete mixers of Glacier Northwest sit idle as a symbol of the deepening divide.