RAP Recycling for TDOT Subs in East TN: Where Millings Go

If you're a TDOT paving sub working in East Tennessee, you're producing reclaimed asphalt pavement faster than most yards can absorb it. The mill runs, the trucks queue, and by mid-week the on-site stockpile is a compliance headache waiting to happen. Selling clean RAP back to a hot-mix producer works when the timing lines up. When it doesn't, you need somewhere to drop.

Here's what to do with the millings when the plant across town is full.

The RAP Disposal Problem for East TN Paving Crews

TDOT is running big-ticket work across the eastern grand division right now. The $186M Alcoa Highway widening is grinding out mill-and-fill sections weekly. I-40 rehab projects between Knox and Cocke counties are producing tri-axle loads by the shift. US-129 reconstruction, US-411 resurfacing, county force-account paving on top of that. The mills don't stop.

Most crews try to move RAP straight to another paving contractor or to a hot-mix asphalt plant that will fold it back into a mix design. That's the right first call. But plants have RAP fraction limits under superpave specs, they run stockpile inventories, and they don't always want your millings on Friday afternoon when their bays are full. When the phone stops ringing back, the RAP becomes a disposal problem, and if you leave it on the jobsite, you own the runoff, the dust, and whatever the inspector says next Monday.

What SMSG Does With RAP

We take the millings in, crush oversize chunks down to spec, and screen by size. From there, RAP gets sold as RAP-based base material for driveways, shoulder work, and yard grading. Nothing gets buried. It's a closed-loop operation: your waste stream turns into somebody else's sub-grade.

That means you're not paying to landfill a material with market value. You're handing it off to a yard that already has a buyer for it.

Why the SMSG Angle Works for TDOT Subs

Four reasons contractors keep coming back:

• Free for clean loads. Clean millings and chunk asphalt drop off free, pickup through tri-axle. No scale tickets, no per-ton surprises when the load runs heavy. That makes bidding and change-order recon predictable.
• Saturday coverage. Weekend mill-and-fill wraps still need somewhere to drop on Saturday morning. We're open 8 AM to noon.
• Documentation on request. Tipping receipts can reference your PO number, project number, or TDOT contract identifier for cost-tracking, LEED MR credit reporting, or internal job-cost files.
• No stockpile compliance risk. Drop it and go. It's off your BMP plan, off the SWPPP inspection line item, off the list of things that could bite you at closeout.

Prep and Delivery Guidance

RAP needs to be cool when it hits the yard. No smoldering loads straight off a fresh mill run. Give it time to sit. Chunk asphalt from full-depth tear-outs mixed in with fine millings is fine; we crush oversize (over 12 inches) into a separate bay. Painted line-stripping fragments in small amounts are not a problem. Tack coat residue on the chunks is expected and not an issue.

What we don't take in the RAP stream: raw dirt or clay contamination beyond what naturally clings to the wearing surface, and any obvious trash (cones, banding, plastic, PPE). Concrete mixed with the asphalt is fine; tell the gate so it goes to the right pile. If you're unsure about a load, call (865) 999-0857 before you haul. Keep the load reasonably clean and the drivers are in and out.

Documentation for TDOT Paperwork

TDOT job files, prime contractor pass-throughs, and LEED-certified project reporting all want the same thing: a paper trail showing where the material went and how much of it there was. We can generate tipping receipts that reference your PO, project number, or TDOT contract number so your project engineer can drop the ticket straight into the job folder.

For subs running multiple trucks against the same project, set up a contractor account. That gives you monthly invoicing, driver lists, and consolidated statements instead of one-off receipts by driver. It's cleaner at month-end and it's cleaner when the general asks for backup on your disposal line item.

How It Compares to the Alternatives

• Stockpile on the jobsite. Zero cost today, potential stormwater and dust compliance risk tomorrow, and eventually you still have to move the pile. Not really an alternative, just a delay.
• Haul to a landfill. Charged by the ton, weekday hours only, and you're paying to bury a material that has an aggregate market. Works, but expensive.
• Sell directly to a hot-mix plant or another paver. Best-case outcome when it lines up. Doesn't always line up.
• Drop at SMSG. Free for clean loads, Saturday hours, documentation on request, closed-loop reuse. The fallback that doesn't feel like a fallback.

Need to move a load this week? Smoky Mountain Sand & Gravel is at 245 Brookdale Rd in Maryville, open Mon-Fri 7 AM to 5 PM and Saturday 8 AM to noon. Call (865) 999-0857 to talk through a contractor account or check current RAP inventory before you send the truck.

Related: where to dump asphalt in East Tennessee, the Alcoa Highway project and concrete recycling, and our asphalt disposal service.