What the Green Star Certification Means
The Green-Star certification, administered by the National Ready Mixed Concrete Association (NRMCA), recognizes concrete plants that demonstrate environmental excellence through sustainable practices and strong environmental management systems. Less than 100 plants worldwide hold this certification, making the Riverside plant’s recognition a notable industry milestone.
Why It Matters
This certification confirms Thomas Concrete’s commitment to:
- Producing low-carbon concrete through the use of CarbonCure, supplementary cementitious materials, and optimized mix designs
- Recycling residual concrete and returning material via qualified third parties
- Reusing water and striving for zero stormwater discharge
- Manufacturing concrete blocks on-site for added efficiency
These sustainability actions align with Thomas Concrete’s ongoing investments across our U.S. plants, including Portland Limestone Cement and increased use of materials like slag and fly ash, to reduce carbon footprints.

A Durable Message
As demand grows for greener infrastructure, the Green-Star certification offers a competitive edge for our customers. It provides:
- Verification for specifiers and project teams pursuing sustainable building certifications
- Proof of responsible production processes for environmentally-aware partners
- A differentiator for clients with sustainability goals, such as reduced embodied carbon, water conservation, and operational transparency

A Proud Moment for Savannah
The Riverside plant, which opened in 2021 on leased Georgia Ports Authority land, stands beside the Savannah River as a visible symbol of our environmental values and our commitment to the community.
Key Facts at a Glance:
- Plant: Riverside, Savannah, GA (operational since 2021)
- Certification: NRMCA Green-Star (October 2024)
- Sustainable Features: Low-carbon mixes, block production (Thomabloc), water reuse, concrete recycling, and a goal towards zero stormwater discharge
Ready to build with a certified green partner? Reach out to your local Thomas Concrete sales rep to learn more about how Riverside, and Our Green Offer, can support your next sustainable project.