Wynn Site Development Services:

Stone, Concrete & Asphalt Site Work in North Carolina

Our fine grading crews are experts at interpreting and executing complex roadway preparation. You can count on Wynn Site Development every step of the way.

What Stone, Concrete & Asphalt Means in Site Development

When we’re talking about stone, concrete, and asphalt, we’re talking about the foundation of a project’s infrastructure. These three materials work together to form a solid foundation. When you choose Wynn Site Development, we take care of all three of these areas, so you don’t need to hire multiple contractors.

Stone is the Aggregate Base

Stone is necessary to prevent the site from sinking or shifting. Stone in these instances refers to aggregate base. Crushed stone is compacted on the soil to create a stable platform. Large, fractured stones are placed along slopes to slow down rushing stormwater and prevent soil erosion.

The Strength of Concrete

Concrete is used for its high compressive strength and durability. Since it does not move, it is used in areas that experience extreme weight and high friction. This is why you often see it used in sidewalks and roads.

Asphalt & Its Flexibility

Asphalt is a blend of stone aggregates bound together by a sticky, petroleum-based liquid asphalt cement. It is quick to install and more cost-effective over large areas than concrete. This is why it is often used in parking lots and highway connectors.

stone asphalt concrete work

Aggregate and Stone Base Work

Aggregate and stone base work are extremely important in site development. It serves as the basic building blocks.

The stone base under North Carolina roads is aggregate base course, otherwise known as ABC stone.

Proper aggregate and stone base work builds a solid foundation beneath roads, driveways, and parking lots. It also works to prevent erosion and promotes good drainage.

concrete asphalt example photo with Wynn Site Development

Concrete Work: Curb, Gutter, Sidewalk, and Pads

When we talk about concrete work in site development, we’re referring to curbs and gutters, sidewalks, and building pads. This work is vital and needs to be done with precision and care.

In curb-and-gutter systems, the concrete is often poured at the same time. Curbs are necessary because without them, road edges will quickly unravel and spill into the street. Meanwhile, the gutter collects runoff from the parking lot and directs it toward storm sewers and catch basins.

Sidewalk construction must also be precise, as it requires grading that complies with accessibility laws. Concrete pads also need to be solid enough to withstand the weight of garbage trucks and other heavy equipment. Wynn Site Development has the expertise needed to get the job done.

Wynn Site Development Project West Side Bottling

Asphalt Preparation and Coordination

At Wynn Site Development, we work to grade the compacted sub-base finely. This is an important role because a thin or uneven base is susceptible to premature cracking and rutting under North Carolina’s warm temperatures.

Besides asphalt preparation, it is also necessary to consider other aspects of the site. At Wynn Site Development, we ensure that all concrete curbs and gutters are fully cured and backfilled before paving begins. We also look to see that anywhere the area between where the new asphalt meets the existing pavement is properly treated.

We check weather reports to make sure that Mother Nature will cooperate when the project is slated. Paving requires a dry surface and specific ambient temperatures. If a sudden rainstorm hits, the paving must stop. Laying hot asphalt on a wet base traps steam, which strips the liquid asphalt from the stone. You can count on our team to plan accordingly so this does not happen.

stone asphalt concrete work

Sub-Base Quality: Proof-Rolling and Undercut

If you don’t want your project to fail, you can’t skip the proof-rolling process. Before paving, a loaded truck must run over the area to check for soft spots. If any are found, that is a red flag for unsuitable soil that needs to be undercut and stabilized. Many contractors forget this step, leading to pavement failure early.

At Wynn Site Development, you can count on us to ensure this step is handled so you don’t have to worry. We know how important it is to your project, which is why it is important to us.

Developers launching projects in North Carolina need to be aware of the state’s environmental and land-use regulations.

North Carolina Regulations and Site-Work Compliance

While stone and asphalt work occur after mass grading, crews still must follow North Carolina’s regulations for erosion control.

01

The Sedimentation Pollution Control Act (SPCA)

If a project disturbs one acre or more of land, the financially responsible party must submit a formal Erosion and Sedimentation Control (E&SC) Plan.
02

State, Municipalities and County Differences

While the North Carolina Department of Environmental Quality (NCDEQ) oversees the state, over 50 local municipalities and counties have delegated authority.
03

SPCA Compliance

All projects must comply with the North Carolina Sedimentation Pollution Control Act (SPCA) of 1973. This strictly prohibits visible mud and sediment from leaving a construction site or entering state waters.
04

OSHA Trenching and Safety Standards (NC DOL)

We carefully abide by OSHA standards to protect our workers at all time. Safety is of the utmost importance!
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Why Builders and Developers Choose Wynn Site Development

When hiring a stone, concrete or asphalt contractor in North Carolina, WSD has the experience you want.

We are licensed.

Not only are we properly licensed, we are in the top 5% of licensed NC contractors.

We do it all.

You don't need to worry about hiring multiple contractors. We take care of it.

Modern technology

WSD has all the latest technologies on hand, we know investing in the most modern equipment is of the utmost importance.

Local, Raleigh Experienced

With over 50+ years combined experience in our team, plus over 17 years in business; we've got it covered!

Frequently Asked Questions

What is the difference between stone base and concrete base for roads? 
A stone base is a compacted crushed-stone layer that forms the foundation for asphalt. A concrete base is a rigid slab designed to support heavier loads. You’ll find that many North Carolina subdivision roads use ABC stone under asphalt because it handles clay-soil movement better than a fully rigid base.
How long does asphalt paving last in North Carolina? 
Typically, asphalt in North Carolina lasts 15 to 25 years when installed correctly. 
How much does site work cost in North Carolina? 
Cost can vary by acreage, soil, and scope. Once a contractor reviews your project, they can give you a proper estimate.
Do I need a permit for concrete or asphalt work in North Carolina? 
If site work disturbs more than an acre, an NCDEQ-approved Sedimentation and Erosion Control Plan is required before grading. Connections to state-maintained roads need an NCDOT encroachment permit. Municipalities require local land-disturbance permits.
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Raleigh Stone, Concrete or Asphalt Services

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