Available at these locations:
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Commonly used for construction entrances, underground drainage systems, and septic water retention systems. The American Association of State Highway and Transportation Officials (AASHTO) classifies these bulky stones as AASHTO #3. It is a versatile aggregate that can be used in multiple applications.
Available at these locations:
Lincoln Quarry Map it
Principio Quarry Map it
Roosevelt Quarry Map it
Shrewsbury Facility Map it
This material is a clean stone and easy to handle. AASHTO #3 is known for its high durability and can withstand wear and tear in high-traffic areas. The AASHTO #3 gradation is ideal for drainage and as a filler material. The angular shape created by the crushers allows the crushed stone to lock together when compacted, giving it high levels of stability.
AASHTO #3 stone size is relatively large at about 2 inches in diameter with a 3 inch topsize. Larger stones are usually designed to balance strength and drainage capabilities.
The three main areas that AASHTO #3 aggregate uses are drainage, foundations and landscaping with erosion control. The stone’s size and gradation make it ideal for French drains, septic drain fields and as a base layer for drainage. It is also used as a foundation later to give robust support and manage water runoff. Because of this stone’s larger size, landscape designers also like to use #3 aggregate for decorative purposes and erosion control.
You often find that AASHTO #3 aggregate is layered with other sizes of crushed stone to achieve the desired compaction and drainage needed. When used as a foundation, AASHTO #3 is often a filler, as it helps prevent shifting or settling. Here are some other possible applications:
We have a wide range of crushed stones at York Building Products, from AASHTO #1 for road bases and construction to Rip-Rap stone. We also have high-quality products available in limestone, sand, clay mixes and imbricated stone.
Our stone is quarried from the east side of North America, including Pennsylvania and Maryland. We’re a family-owned business, operating since 1939, giving us insight into the local area so we can produce the best possible products. We have an extensive range and can supply a variety of stone materials for your construction or landscape project.
AASHTO #3 crushed stone is a go-to material for drainage, foundation support and erosion control across residential and commercial projects. These FAQs cover how its angular shape creates stability, where it performs best and other common questions.
AASHTO #3 crushed stone is one of the best choices for drainage applications because its angular particles create open spaces that let water pass through freely. You will find it used in stormwater diversion pits, construction entrances and drainage layers beneath retaining walls where consistent water flow is the priority. If drainage is your main need, #3 stone is a strong choice.
The angular shape of #3 stone locks together at its edges and corners when compacted, and that matters for stability because the resulting tight mass resists shifting and settling under load.
The size range of AASHTO #3 crushed stone particles runs from approximately two inches up to a top size of three inches, creating the open voids that make the material effective for drainage. For stormwater diversion pits, retaining wall drainage and construction entrance applications, this gradation gives you the flow capacity those projects require.
Yes, you can use #3 stone for both drainage and foundation applications in the same project because it fills and stabilizes to prevent shifting and settling, while also moving water away from structures. Many projects benefit from using #3 stone in both roles, especially when managing water runoff while also supporting a solid base.
#3 stone is highly effective for specific applications like French drains because it gives you reliable water diversion along the drain line and septic field beds because it supports water distribution through the soil.
Yes, you should layer #3 stone with other crushed stone sizes for better drainage and compaction as the #3 stone handles water flow while the finer sizes below fill the gaps and create a more solid base. This is a common approach for driveways, road bases and retaining walls. The team at York Building Products can help you choose the right combination for your project.
With over 80 years in the business, we understand the different needs of the construction and landscaping sectors. Our masonry, cement and hardscape products have been refined and innovated over the years to make them the perfect solution for your project. We also vertically integrate our sand, gravel and stone divisions to optimize product quality from the beginning of their life cycle as a raw material through to the end product.
Contact us today to learn how we can benefit you and your projects — we’ll help you select the right stones for your needs and budget.
717.771.3507 