Trusted Asphalt Supply for
Private, Highway and Specialty Projects
SERV
ICES
SERVICES
Open to All Qualified Contractors
Partner to Arizona’s paving trade
Solterra Materials supplies asphalt to contractors across Arizona. We deliver quality materials with reliability, backed by award-winning plants, an accredited lab, and a team supporting private, highway, and specialty projects.
Our Supply & Process
Proven Quality, Backed by Recognition
Every mix produced at our plants is tested in an ADOT-accredited lab, ensuring it meets required specifications before reaching your job site. This process reduces risk and keeps your projects moving without delays.
Our Buckeye and Coolidge facilities have earned NAPA awards for operational excellence. These recognitions reflect the consistency and reliability contractors count on when choosing Solterra as their supply partner.
Strategic Coverage Across Phoenix Metro Area
With plants in Morristown, Buckeye, and Coolidge plus an ADOT-accredited lab, Solterra is positioned to cut haul times, keep supply steady, and ensure every mix meets spec before it leaves the Plant.
How Asphalt is Made
See the process in action — from raw aggregate to finished mix, every step is designed for consistency and quality.
Asphalt Built for Every Job
Mixes We Produce
• Standard (HMA)
Durable and versatile, ideal for municipal roads, driveways, and parking lots.
• Performance Mixes
Engineered to meet ADOT-regulated specs for highways and infrastructure.
• High-Volume Supply
Large-scale production to support agency and municipal requirements.
• Custom Specifications
Tailored blends developed for unique performance goals.
• Private / Commercial
Asphalt supply for site development, driveways, and parking lots.
• Highway / Infrastructure
Meeting DOT standards for municipal roads, arterials, and freeways.
• Specialty / Custom
Custom-engineered mixes for unique projects, from racetracks to one-off designs.
• High Rap Mixes
High RAP mixes available for projects requiring recycled asphalt content.
Our Locations
Asphalt Built for Every Job
With three strategically placed plants and an accredited lab, Solterra makes asphalt supply accessible across Arizona. Each site is built to reduce haul times and keep projects supplied with consistent, tested materials.
(Coolidge, AZ)
Coolidge Plant 1
Award-Winning Asphalt Supply
Coolidge combines reliable production with large storage capacity and nationally recognized quality.
- AL Mix Double Drum plant – 400 TPH capacity
- 7 cold feed bins and 4 silos (750 tons storage)
- 3 virgin AC tanks for flexible mix designs
- Full in-house QC testing lab
- Recipient of the 2025 NAPA Diamond Award
(Buckeye AZ)
Award-Winning High-Capacity Production Hub
Built for volume and flexibility, Buckeye is the largest Solterra facility with full recycling and quality control capabilities.
- Astec Double Barrel plant – 500 TPH capacity
- Powered by LNG for efficiency
- 6 cold feed bins and 4 silos (650 tons storage)
- 3 virgin AC tanks for multiple oil grades
- Full in-house QC testing lab
(Ridge, AZ)
Ridge Plant 3
Efficient, Scaled Production
Ridge is a lean operation designed for consistent output and quality, with all the same standards as larger plants.
- ADM plant – 325 TPH capacity
- 6 cold feed bins and 2 silos (450 tons storage)
- 2 virgin AC tanks for multiple oil grades
- Full in-house QC testing lab
(Quality Control Lab)
ADOT-Accredited
Testing Facility
- Accredited for Marshall & Superpave mix designs
- Tests binder content, stability, density, and cracking resistance
- Evaluates moisture susceptibility (TSR) for long-term performance
- Performs field sampling and core density checks
- Full aggregate testing: gradation, abrasion, absorption, and soundness
Contact us today
let us Point You the Right Way
Solterra Materials is the only asphalt supplier owned by a paving company. We deliver quality materials with reliability, backed by award-winning plants, an accredited lab, and a team supporting private, highway, and specialty projects.
