Certified Construction Materials

Importance of using DOT Certified Concrete Sand for your construction projects

DOT Certified Concrete Sand


Infrastructure, including roads, bridges, and highways, plays a critical role in the economic success of any region. A strong and efficient transportation network allows for the movement of people and goods, facilitating commerce and trade and connecting communities. However, infrastructure is only as good as its durability, and road construction materials that do not meet the necessary standards can lead to costly repairs and maintenance. 

Construction projects require high-quality building materials that can withstand the test of time. Concrete sand is essential for making strong and durable concrete structures. However, not all concrete sand is created equal. Specific benchmarks must be followed to ensure uniformity and adherence to high-quality standards. The Department of Transportation (DOT) Certified Concrete Sand is designed to meet the high standards required for construction projects.

This blog aims to guide construction professionals and homeowners on the importance of using DOT Certified Concrete Sand in their construction projects. Additionally, we offer an overview of our Plant, Legacy Materials, and showcase the benefits of using Iowa DOT Certified Concrete Sand produced at our Plant.

Let us begin by understanding DOT Certified Concrete Sand and the possible questions that surround them:

What is DOT Certified Concrete Sand?

DOT Certified Concrete Sand is a specially formulated sand used to produce concrete for construction projects. It is a high-quality sand that meets the strict standards of the Department of Transportation for construction projects. The sand undergoes rigorous testing to ensure it is free of contaminants, is the correct particle size, and meets specific gradation requirements.

Why is using DOT Certified Concrete Sand in construction projects critical?

Using DOT Certified Concrete Sand is critical in construction projects to ensure that the concrete structures are strong and durable. The sand is designed to meet the high standards required for construction projects and is tested to ensure that it meets these standards. DOT Certified Concrete Sand is also crucial in ensuring the concrete is workable and has a high-quality finish. Using low-quality sand or sand that does not meet DOT standards can lead to structural failures and costly repairs.

What are the benefits of using DOT Certified Concrete Sand?

There are several benefits to using DOT Certified Concrete Sand in construction projects:

  • It ensures the longevity and durability of the concrete structures.
  • The sand is workable and allows easy concrete mixing, producing a high-quality finish.
  • DOT Certified Concrete Sand is consistent, ensuring that the quality of the concrete remains constant throughout the project.
  • Using DOT Certified Concrete Sand can result in cost savings, as it reduces the risk of structural failures and costly repairs.

Overview of Legacy Materials Plant 

Legacy Materials features a state-of-the-art KPI/JCI Sand Plant. It is designed to produce high-quality construction materials, including Iowa DOT Certified Concrete Sand. The facility is equipped with the latest technology and equipment, making it one of the most advanced production plants in the region.

Why updated machinery is important in the production of Iowa DOT Certified Concrete Sand

At Legacy Materials, we use updated machinery to produce Iowa DOT Certified Concrete Sand. Our Plant is equipped with modern equipment, including the latest technology and features that make the production process more efficient, cost-effective, and reliable. Our updated machinery includes advanced screening and washing systems and state-of-the-art computerized controls that ensure consistent quality.

Importance of using updated machinery in the production of Iowa DOT Certified Concrete Sand

Updated machinery is crucial in producing Iowa DOT Certified Concrete Sand because it ensures that the sand meets DOT standards. Advanced machinery allows us to control the production process and monitor the quality of the sand. We can also adjust the production process to meet specific requirements, such as particle size and gradation, to ensure that the sand meets the high standards required for construction projects.

Benefits of using updated machinery in the production of Iowa DOT Certified Concrete Sand

There are several benefits to using updated machinery in the production of Iowa DOT Certified Concrete Sand:

  • It ensures that the sand meets DOT standards, which are crucial in construction projects.
  • Advanced machinery is more efficient, reducing production time and costs.
  • Modern machinery is more reliable, reducing the risk of downtime and production delays.
  • Updated machinery is more environmentally friendly, reducing energy consumption and waste.

Using updated machinery enables us to provide our customers with consistent quality Iowa DOT Certified Concrete Sand, which is essential in construction projects where the strength and durability of the concrete structures are critical.

Legacy Material’s Iowa DOT-Certified Concrete Sand

Let’s take a look at some of the benefits of using Legacy Materials Iowa DOT Certified Concrete Sand:


One of the primary advantages of using Legacy Materials Iowa DOT Certified Concrete Sand is its durability. The sand is produced using advanced technology and a strict quality control process, ensuring it is free of impurities and meets the required specifications; Thereby making strong and durable concrete that can withstand the rigors of heavy use and extreme weather conditions.


Another advantage of using Legacy Materials Iowa DOT Certified Concrete Sand is its consistency. The sand is produced using the latest machinery and advanced technology that ensure the sand is consistent in texture and composition. The use of technology also contributes to the consistency of the quality of concrete produced throughout the project.

Enhanced workability

Legacy Materials Iowa DOT Certified Concrete Sand enhances workability, making it easier to use and mold. The sand’s particle size and shape have been carefully selected to ensure that it blends well with cement and water, resulting in a concrete mix that is easy to work with. The improved workability allows for more efficient and faster construction, saving time and money.

High-quality finish

Finally, Legacy Materials Iowa DOT Certified Concrete Sand is designed to produce a high-quality finish. The sand is free of impurities, ensuring that the concrete produced has consistent color and texture, resulting in a smooth, even finish that is aesthetically pleasing and adds value to any construction project.


The key takeaway is that DOT Certified Concrete Sand in construction projects is vital to ensure safety, sustainability, and longevity. Legacy Materials, an all-woman-owned business, is committed to producing high-grade construction materials while following sustainability principles. Our state-of-the-art Plant, cutting-edge machinery, and strict quality control processes ensure that our Iowa DOT Certified Concrete Sand is of the highest quality, consistent, and durable. We are committed to providing an exceptional product while upholding our commitment to sustainability, making Legacy Materials a leader in the industry. By choosing Legacy Materials for your construction needs, you can be confident that you are getting the best possible products for your construction needs while also supporting a business that values sustainability and women’s leadership. We would love to work with you on your next project. You can start by submitting a Bid Request here or calling us at 515-432-7333.

DOT Certified Concrete Sand
DOT Certified Concrete Sand
DOT Certified Concrete Sand
DOT Certified Concrete Sand

Construction materials that meet the standards of the Iowa DOT

Use of Certified Construction Materials 

Municipal and state construction projects are highly regulated in all aspects and the State of Iowa is no exception. The construction aggregate materials used in these projects need to conform to strict standards defined by the respective state bodies like the Department of Transportation (DOT). The Iowa DOT Office of Construction and Materials has defined such standards and specifications for all of its projects, too. However, finding the right supplier who can supply certified construction materials can be challenging. That is where Legacy Materials comes into play.

Iowa DOT Certified Materials from Legacy Materials

Legacy Materials provides customers with a number of Iowa DOT certified materials including D-57 Gravel, Porous Backfill, Concrete Sand, Floodable Backfill, and Granular Backfill to help fulfill the needs and expectations of many state and municipality sponsored projects.

Compliance with Iowa DOT Standards

When it comes to certified materials, the liability for quality control of these materials lies with the supplier. The Iowa District Materials Personnel determines the aggregate quality by testing samples. However, passing this test alone will not be sufficient for suppliers. Suppliers also need to execute the responsibilities defined in “Guidelines for Aggregate Producer Quality Control Program, IM 209, Appendix A.” 

Maintaining the standards of products and processes for state-certified construction materials is a long-term commitment and one that Legacy Materials prides itself in. That’s why finding a supplier, such as Legacy Materials, that is compliant with the state’s specifications is of paramount importance for all contractors participating in state infrastructure projects.

Sampling Methods and Procedures

Finding the right supplier who produces certified construction materials is just the tip of the iceberg. The Iowa DOT has set forth sampling methods and sampling procedures for suppliers to follow. The agency has precise specifications for all materials including certified concrete sand or certified aggregates in this IM (Institutional Memorandum). And in the event of any criteria being missing from this IM makes use of the American Society of Testing Materials (ASTM). Legacy Materials has a rigorous process in place including in-house daily sampling and quality control by an independent third party in order to ensure consistent adherence to these specifications and provide its customers with quality, Iowa DOT certified materials each and every day.  

Iowa DOT’s Approved Producer Program

The minimum requirement is for the supplier to be on the “Approved Producer Program” list published by the Iowa DOT. This is not just for virgin products. Even recycled products must be sourced from suppliers on this list. Recycled products often come under more scrutiny as they tend to be contaminated by rebar, asphalt, and other materials.

Once the supplier’s presence on the list is validated, it is vital to ensure that the sourced materials are as per “The Material Specifications Limits & Sampling and Testing Guide” published by the Iowa DOT. Non-compliance to these specifications allows the District Materials Engineer to place the supplier on conditional status. If this situation continues, the engineer can remove the supplier from the list altogether.  Legacy Materials takes compliance to these standards very seriously and throughout our company’s history has maintained our good standing on the Iowa DOT’s Approved Producer Program.

Local, Woman-Owned Business

As one of the only local, woman-owned businesses in this industry, Legacy Materials prides itself on supplying any materials that are needed for construction projects. Not only that, but we know the work we do at Legacy Materials will supply the need for future growth in Des Moines and the surrounding area. As a sand and mining operation, we focus on sustainability and bettering the community in which we live. This means supplying our customers with quality products that will withstand the test of time.

When you partner with a WBENC-Certified Women’s Business Enterprise (WBE), you gain a number of benefits including tax incentives. The federal government affords tax incentives to those who conduct business with minority and women-owned businesses. Additionally, tax liabilities are reduced for projects funded with federal or state grants or loans when the supplier is a woman-owned business.  Being an aggregate supplier and materials handler Legacy Materials can be your single source for all of your construction material needs.

There’s More to Consider Than Certification Alone

Be it a single lot procurement or continuous purchase across the entire project; contractors need dependable and compliant suppliers like Legacy Materials. Presence on the Approved Producer Program list will qualify a supplier for compliance. But the key to successful delivery lies in the infrastructure and equipment that the supplier uses. Coarse aggregate preparation in huge volumes will mean that the supplier should be able to invest in the necessary capital equipment. Without this, the suppliers will not be reliable partners when the project demands fluctuate.

The Legacy Materials site features a new, state-of-the-art KPI/JCI Sand Plant. We are committed to sourcing materials from our site and utilizing the industry’s leading equipment and processes. This allows us to supply customers with quality, aggregate products in a cost-efficient manner that also works for their timeframe.

See our permanent plant growth by watching the video below.

Finally, the supplier also needs the necessary logistical support to deliver the products to the site. The supplier may have their transport equipment or may have the required partners in place, but without this, the timely arrival of supplies will become the contractor’s problem, jeopardizing schedule adherence. Legacy Materials works closely with third-party delivery entities to ensure that supplies are delivered in a timely manner. Schedule adherence in a construction project can be expensive considering the cost of labor, equipment, and capital that will sit idle in the case of delays.  With Legacy Materials, you have peace of mind that quality products will be delivered on schedule.

Legacy Materials meets all requirements including compliance, infrastructure, logistical support, and robust financials, making us the ideal partner for any contractor working on state or municipal projects.

Does Your Next Project Require Iowa DOT Certified Materials?Legacy Materials has supplied materials to concrete contractors, landscape contractors, pipeline contractors, and other construction businesses in the greater Des Moines metropolitan area. To know how our Iowa DOT certified materials can help you execute your municipal and state construction projects, call us at 515-432-7333.


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