CalPortland is the leading producer of cement, concrete, aggregates, asphalt, and construction materials in the Western United States and Canada, delivering high-quality products and reliable service that have defined our company for more than 130 years.
With operations across Alaska, Washington, Oregon, California, Nevada, Arizona, and British Columbia, we support the growing infrastructure of communities throughout the western region.
Since 1891, our commitment has remained the same: to produce superior materials, execute them with integrity, and continually advance the science behind sustainable construction. Our longstanding reputation for quality, reliability, and technical excellence is why contractors, engineers, and builders trust CalPortland time and time again.

Our Commitment to Quality

Quality is the foundation of everything we do.
From the raw materials we harvest to the advanced technologies we use in production, our focus on delivering unsurpassed quality defines our reputation as an industry leader.
Every product, every truck, and every project reflects our dedication to precision, consistency, and technical excellence.
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Cement Plants
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Cement Terminals
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Ready-mix Plants
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Aggregate Plants
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Ready-mix Trucks
Our people and our operations work seamlessly to ensure on-time, uninterrupted delivery backed by professional expertise and uncompromising quality standards.

Sustainability & Environmental Leadership

The materials we make come from the earth and we take responsibility for protecting the environments we operate in. Through advanced manufacturing practices, energy-efficient operations, and responsible resource management, CalPortland is a recognized leader in sustainable construction materials.
Our environmental commitment has earned us the EPA ENERGY STAR® Partner of the Year Award for twenty consecutive years, reflecting our dedication to reducing emissions, improving efficiency, and innovating for a more sustainable future.
From low-carbon cement initiatives to renewable energy investments, we are leading the way in building a better planet for generations to come.

Safety: "Zero Accidents for Life"

Safety is more than a priority–it’s a core value.
At CalPortland, safety is more than a workplace priority–it’s a way of life. Our commitment to "Zero Accidents for Life" shapes every decision, informs every training program, and strengthens our culture.
We track, measure, and improve safety performance every day to ensure employees, partners, and customers return home safely. True quality begins with protecting and supporting people at every step.

Our Values

Our values set the standard for how we work and what we stand for:
People First
Building value by investing in our team and their families.
Safety
Creating an environment where everyone looks out for one another.
Quality & Technical Expertise
Delivering superior materials backed by industry-leading knowledge.
Service & Integrity
Operating with honesty, reliability, and professionalism.
Environmental Leadership
Protecting the planet through responsible and innovative practices.
Relationships & Community
Giving back through service, donations, materials, and local partnerships.
These values guide us today and will continue to define our path forward.

CalPortland Timeline

CalPortland began in 1891 with the opening of the Colton, California cement plant, making us the oldest continually operating Portland cement company west of the Rocky Mountains.
Today, we continue to innovate, evolve, and shape the future of construction across the western United States and Canada.
Start the Journey

1890s

California Portland Cement Company is incorporated and builds their first cement plant in Colton, CA.

California Portland Cement Company is incorporated and builds their first cement plant in Colton, CA.

1921

LA Coliseum

During its construction between 1921 and 1923, the Los Angeles Memorial Coliseum required over 100,000 cubic yards of concrete. That's enough to fill 30 Olympic-sized swimming pools.

By CanonStarGal - Own work, CC BY-SA 4.0

During its construction between 1921 and 1923, the Los Angeles Memorial Coliseum required over 100,000 cubic yards of concrete. That's enough to fill 30 Olympic-sized swimming pools.

1931

Hoover Dam

The construction of the Hoover Dam required approximately 3.25 million cubic yards just for the dam itself with another 1.1 million cubic yards needed for the power plant and related structures. For perspective, that's enough concrete to build a two-lane highway from San Francisco to New York City. At the time, it was one of the largest concrete projects ever attempted and utilized innovative cooling techniques, like embedded cooling pipes, to prevent cracking as the structure cured.

The construction of the Hoover Dam required approximately 3.25 million cubic yards just for the dam itself with another 1.1 million cubic yards needed for the power plant and related structures. For perspective, that's enough concrete to build a two-lane highway from San Francisco to New York City. At the time, it was one of the largest concrete projects ever attempted and utilized innovative cooling techniques, like embedded cooling pipes, to prevent cracking as the structure cured.

1940-1960

California Portland Cement Company expands across California and into Arizona and the Pacific Northwest.

California Portland Cement Company expands across California and into Arizona and the Pacific Northwest.

1962

Seattle Space Needle

The Space Needle used about 5,600 cubic yards of concrete for its foundation, which was poured in a single continuous operation. The base is roughly 30 feet deep and 120 feet wide, making it one of the largest single pours of its time.

The Space Needle used about 5,600 cubic yards of concrete for its foundation, which was poured in a single continuous operation. The base is roughly 30 feet deep and 120 feet wide, making it one of the largest single pours of its time.

1998

Chase Field

Chase Field required approximately 235,000 cubic yards of concrete during its construction in the late 1990s. This massive volume supported the stadium’s retractable roof structure, seating bowl, and extensive foundation systems.

Chase Field required approximately 235,000 cubic yards of concrete during its construction in the late 1990s. This massive volume supported the stadium’s retractable roof structure, seating bowl, and extensive foundation systems.

2005

Glacier Northwest merges with California Portland Cement Company to become CalPortland.

Glacier Northwest merges with California Portland Cement Company to become CalPortland.

2016-2017

SoFi Stadium & Allegiant Stadium

SoFi Stadium used an estimated 600,000+ cubic yards of concrete, supporting its massive footprint, below-grade levels, and complex structural design.

Allegiant Stadium required approximately 300,000 cubic yards of concrete for its foundation, structure, and surrounding infrastructure.

Both are among the largest modern stadium builds in the U.S.

SoFi Stadium used an estimated 600,000+ cubic yards of concrete, supporting its massive footprint, below-grade levels, and complex structural design.

Allegiant Stadium required approximately 300,000 cubic yards of concrete for its foundation, structure, and surrounding infrastructure.

Both are among the largest modern stadium builds in the U.S.

2021

Intuit Dome

Intuit Dome used an estimated 300,000+ cubic yards of concrete during construction, comparable in scale to other major modern arenas.

What sets it apart is its use of low-carbon concrete mixes, incorporating supplementary cementitious materials (SCMs) to significantly reduce embodied carbon. This approach helped lower overall CO₂ emissions while still meeting the high-performance and durability requirements of a state-of-the-art venue, making it one of the more sustainability-focused large-scale concrete projects in the U.S.

By Haruhi8 - Own work, CC BY 4.0

By Anthony De Leon, CC BY 4.0

Intuit Dome used an estimated 300,000+ cubic yards of concrete during construction, comparable in scale to other major modern arenas.

What sets it apart is its use of low-carbon concrete mixes, incorporating supplementary cementitious materials (SCMs) to significantly reduce embodied carbon. This approach helped lower overall CO₂ emissions while still meeting the high-performance and durability requirements of a state-of-the-art venue, making it one of the more sustainability-focused large-scale concrete projects in the U.S.

2024

CalPortland receives 20th consecutive ENERGY STAR Partner of the Year award, which is the highest level of recognition awarded by the U.S. Environmental Protection Agency (EPA) to organizations demonstrating exceptional commitment to energy efficiency.

CalPortland receives 20th consecutive ENERGY STAR Partner of the Year award, which is the highest level of recognition awarded by the U.S. Environmental Protection Agency (EPA) to organizations demonstrating exceptional commitment to energy efficiency.

2024

LACMA David Geffen Galleries

The David Geffen Galleries (part of the Los Angeles County Museum of Art transformation) used around 40,000–50,000 cubic yards of concrete.

What makes the project notable isn’t just the volume, but the extensive use of low-carbon concrete mixes, designed to reduce embodied carbon while supporting the building’s unique elevated, flowing structure.

Photographer Iwan Baan

Photographer Iwan Baan

The David Geffen Galleries (part of the Los Angeles County Museum of Art transformation) used around 40,000–50,000 cubic yards of concrete.

What makes the project notable isn’t just the volume, but the extensive use of low-carbon concrete mixes, designed to reduce embodied carbon while supporting the building’s unique elevated, flowing structure.

2026

In 2026 CalPortland celebrated 135 years of business.

In 2026 CalPortland celebrated 135 years of business.

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A Future Built on Quality, Innovation & Responsibility

CalPortland’s legacy is built on more than materials. It’s built on people, progress, and the relentless pursuit of better ways to build. As we look to the future, we remain committed to advancing sustainability, delivering exceptional quality, and supporting the communities we serve.
EXPECT MORE … WE DELIVER!®
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(844) 823-6309

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