Vulcan Materials – Napa Asphalt
2301 Napa-Vallejo Hwy, Napa, CA 94558
- Caltrans approved
- Outside sales
- Hot mix (HMA)
- Aggregates
- Sells millings
- Checked Oct 1, 2026
Before you haul
What to settle with the plant before trucks leave the yard.
- Outside sales
- Sells to outside contractors
- Current hours
- Call plant
- Account
- Confirm with plantAsk what a first order needs
- Mix availability
- Call plantName the mix and tonnage
- Production schedule
- Call plantChanges day to day
- Minimum order
- Confirm with plant
- Payment methods
- Confirm with plant
- Saturday
- Confirm with plant
- Truck access
- See site and truck accessAccess notes on file
Plant notes
Formerly Syar Industries — acquired by Vulcan Materials in 2022. Napa Asphalt is co-located with Vulcan’s aggregate quarry, providing asphalt and aggregate materials from the same production complex. Caltrans identifies the asphalt operation as an HMA batch plant and has approved RAP-related production. Confirm mix design, tonnage and pickup schedule before arrival.
Production schedules, mix inventory and loadout conditions change day to day. Confirm the mix designation, tonnage and loadout time with the plant before you dispatch trucks.
Plant details
Plant
- Operator
- Vulcan Materials Company
- Plant type
- Fixed · hot mix asphalt and aggregates
- Mixing method
- Batch plant
- County
- Napa County
- Caltrans
- On the Caltrans approved-plant listRenewed · valid through May 8, 2027
- Address
- 2301 Napa-Vallejo Hwy, Napa, CA 94558
- GPS coordinates
- 38.26488, -122.27119
- Website
- vulcanmaterials.com
- Plant page
- The operator’s page for this plant
- Details checked
- October 1, 2026
Ordering and sales
- Plant phone
- (707) 224-6202
- Sales department
- (707) 302-9247
- Outside sales
- Sells to outside contractors
Ask for your mix by name, the day’s loading hours, the minimum load, and what a first-time account needs.
Recycled asphalt
- Old asphalt
- Takes old asphalt (RAP, grindings) to recycle
- Millings
- Sells millings or recycled asphalt base
Operations
- Plant hours
- Call plant for current production and loadout hours: (707) 224-6202.
- Seasonal schedule
- Production and loadout schedules may vary with paving demand, project requirements and seasonal conditions. Contact the plant before dispatching trucks to confirm current hours, mix availability and scheduled pickup time.
Mixes and products
- HMA · listed
- RHMA · not listed, ask
- Warm mix · not listed, ask
- RAP · listed
- DOT spec · listed
- Specialty · listed
- Aggregates · listed
Hot mix asphalt (HMA)
- Hot Mix Asphalt (HMA)
- Asphalt Concrete
- Roadway Asphalt Mixes
- Commercial Paving Asphalt Mixes
Recycled asphalt (RAP) mixes
- RAP-Containing Asphalt Mixes
- Reclaimed Asphalt Pavement (RAP)
Agency and DOT specification mixes
- Caltrans Specification HMA
Specialty and custom mixes
- Custom Asphalt Mix Designs
Aggregates
- Construction Aggregates
- Crushed Aggregate
- Aggregate Base
The operator’s own list, sorted into families by The Pavement Directory. Mix designs and production schedules change: confirm the exact mix designation and tonnage availability with the plant before dispatching trucks.
Price per ton
No price on file for Vulcan Materials – Napa Asphalt yet. Plant prices move with the liquid asphalt index and the quantity, so call for today's price — and if you have bought here recently, you can add what you paid below.
Report a price you paid
Site and truck access
Google satellite imagery centred on the plant’s coordinates. Zoom out to see the roads in.
- Gate address
- 2301 Napa-Vallejo Hwy, Napa, CA 94558
- GPS
- 38.26488, -122.27119
Truck access notes
Active asphalt and quarry production complex with substantial heavy-truck and equipment traffic. Follow posted haul routes, check-in procedures and PPE requirements. Confirm mix number, tonnage and pickup time before dispatching trucks.
Nearby asphalt plants
The nearest 10 within a 1 hr drive of Vulcan Materials – Napa Asphalt, by road with typical traffic.
Route to 1. Vallejo Asphalt — 28 min (24 mi) by road, typical traffic.
| Map number# | Plant | Drive | Road miles | Outside sales |
|---|---|---|---|---|
| 1 | Vallejo AsphaltVulcan Materials · Vallejo, CA24 mi by road · Outside sales: YesDirections from Vulcan Materials – Napa Asphalt to Vallejo Asphalt | 28 min | 24 mi | Yes |
| 2 | County AsphaltCounty Quarry Products, LLC · Martinez, CA29 mi by road · Outside sales: UnconfirmedDirections from Vulcan Materials – Napa Asphalt to County Asphalt | 32 min | 29 mi | Unconfirmed |
| 3 | Berkeley AsphaltMartin Marietta · Berkeley, CA37 mi by road · Outside sales: YesDirections from Vulcan Materials – Napa Asphalt to Berkeley Asphalt | 41 min | 37 mi | Yes |
| 4 | Dutra Materials/San Rafael RocRichmond, CA · permit record, not yet reviewed39 mi by road · Outside sales: UnconfirmedDirections from Vulcan Materials – Napa Asphalt to Dutra Materials/San Rafael Roc | 42 min | 39 mi | Unconfirmed |
| 5 | Antioch Building Materials CompanyAntioch Building Materials Inc · Pittsburg, CA40 mi by road · Outside sales: UnconfirmedDirections from Vulcan Materials – Napa Asphalt to Antioch Building Materials Company | 42 min | 40 mi | Unconfirmed |
| 6 | Cache Creek HMAMadison, CA · permit record, not yet reviewed47 mi by road · Outside sales: UnconfirmedDirections from Vulcan Materials – Napa Asphalt to Cache Creek HMA | 45 min | 47 mi | Unconfirmed |
| 7 | Cpm Development Corporation DBA Dutra Materials A CRH CompanyRichmond, CA · permit record, not yet reviewed36 mi by road · Outside sales: UnconfirmedDirections from Vulcan Materials – Napa Asphalt to Cpm Development Corporation DBA Dutra Materials A CRH Company | 47 min | 36 mi | Unconfirmed |
| 8 | Dutra Materials San RafaelDutra Materials · San Rafael, CA39 mi by road · Outside sales: UnconfirmedDirections from Vulcan Materials – Napa Asphalt to Dutra Materials San Rafael | 50 min | 39 mi | Unconfirmed |
| 9 | Todd Road PlantVulcan Materials · Santa Rosa, CA38 mi by road · Outside sales: UnconfirmedDirections from Vulcan Materials – Napa Asphalt to Todd Road Plant | 51 min | 38 mi | Unconfirmed |
| 10 | Gallagher & Burk – High Street Asphalt PlantDeSilva Gates / Oliver de Silva, Inc. · Oakland, CA48 mi by road · Outside sales: YesDirections from Vulcan Materials – Napa Asphalt to Gallagher & Burk – High Street Asphalt Plant | 51 min | 48 mi | Yes |
Drive time and miles by road from Google, with typical traffic for the route. Rush hour, a plant queue and a loaded truck all add time, so allow for them before you commit trucks.
Plant intelligence
About Vulcan Materials – Napa Asphalt
Vulcan Materials’ Napa Asphalt facility is an HMA batch plant serving roadway, commercial and infrastructure paving projects throughout Napa County and the North Bay. The plant is co-located with Vulcan’s Napa Quarry and can produce multiple asphalt mix designs, including RAP-containing mixes. Caltrans lists the facility in its Material Plant Quality Program.
Areas served: Napa · American Canyon · Yountville · St. Helena · Vallejo · Sonoma · Fairfield · Napa County · Southern Napa Valley · North Bay
More Vulcan Materials Company plants
- Vallejo AsphaltVallejo, CA · 28 min (24 mi) by road
- Todd Road PlantSanta Rosa, CA · 51 min (38 mi) by road
- Pleasanton AsphaltPleasanton, CA · 59 min (57 mi) by road
- Healdsburg AsphaltHealdsburg, CA · 1 hr 6 min (56 mi) by road
- Vulcan Materials – Grass Valley AsphaltGrass Valley, CA · 1 hr 54 min (110 mi) by road
- Madera AsphaltMadera, CA · 2 hr 55 min (184 mi) by road
Plan the haul
- Asphalt tonnage calculatorTons to order before you call.
- Trucking calculatorCycle times and trucks for this haul.
- Asphalt plants near NapaEvery plant within a haul of your site.
- Buying direct from a plantSmall loads, millings and price per ton.
Who lays the mix
Need the work done rather than the mix? Compare paving and pavement maintenance contractors serving the area.
Vulcan Materials – Napa Asphalt: common questions
Does Vulcan Materials – Napa Asphalt sell asphalt to outside contractors?
Yes. Vulcan Materials – Napa Asphalt sells hot mix to outside contractors. Call (707) 224-6202 to confirm account, pickup and delivery terms before your first order.
How do I order asphalt from Vulcan Materials – Napa Asphalt?
Call the sales department at (707) 302-9247. Have the mix, tonnage and pickup date ready, and ask what a first-time account needs.
What are Vulcan Materials – Napa Asphalt's hours?
Call plant for current production and loadout hours: (707) 224-6202. Production and loadout schedules may vary with paving demand, project requirements and seasonal conditions. Contact the plant before dispatching trucks to confirm current hours, mix availability and scheduled pickup time.
Does Vulcan Materials – Napa Asphalt take old asphalt or sell millings?
Vulcan Materials – Napa Asphalt takes in old asphalt (RAP and grindings) for recycling and sells millings or recycled asphalt base. Call (707) 224-6202 to confirm what it accepts or has in stock before you send a load.
What asphalt mixes does Vulcan Materials – Napa Asphalt make?
Vulcan Materials – Napa Asphalt lists Hot Mix Asphalt (HMA), Asphalt Concrete, RAP-Containing Asphalt Mixes, Reclaimed Asphalt Pavement (RAP), Custom Asphalt Mix Designs, Caltrans Specification HMA, Roadway Asphalt Mixes, Commercial Paving Asphalt Mixes, Construction Aggregates, Crushed Aggregate and Aggregate Base. What runs on a given day depends on the plant's schedule, so confirm your mix when you order.
Does Vulcan Materials – Napa Asphalt sell aggregates?
Yes. As well as hot mix asphalt, Vulcan Materials – Napa Asphalt sells aggregates. Call (707) 224-6202 to confirm the material, gradation and quantity you need before you send trucks.
What areas does Vulcan Materials – Napa Asphalt serve?
Vulcan Materials – Napa Asphalt serves Napa, American Canyon, Yountville, St. Helena, Vallejo, Sonoma, Fairfield, Napa County, Southern Napa Valley and North Bay. Haul time still decides whether it can supply a given job, so measure from the site before you order.
Is Vulcan Materials – Napa Asphalt Caltrans-approved?
It was on the Caltrans approved-plant list when this record was last checked, on October 1, 2026. Renewed · valid through May 8, 2027. Approvals lapse and renew, and a public job still needs its own mix design approved, so confirm both before you bid.
Where is Vulcan Materials – Napa Asphalt?
2301 Napa-Vallejo Hwy, Napa, CA 94558, in Napa County.
What other asphalt plants are near Napa?
The closest by road in this directory are Vallejo Asphalt in Vallejo (28 min (24 mi) by road), County Asphalt in Martinez (32 min (29 mi) by road) and Berkeley Asphalt in Berkeley (41 min (37 mi) by road), driving from Vulcan Materials – Napa Asphalt with typical traffic. Call ahead before you switch plants — the nearest one only helps if it will load your trucks.
Verified sources and corrections
Details checked October 1, 2026
Someone at The Pavement Directory checked this plant’s phone, hours and outside-sales policy against the operator on that date. It is not an endorsement of the plant or its mix.
Sources on this record
- Operator’s page for this plant — vulcanmaterials.com
- Operator website — vulcanmaterials.com
- Caltrans approved-plant list — Plant listed
Record last updated October 1, 2026.
Run this plant, or found a detail that has changed? Tell us and we will check it against the operator. Include this page’s address in your message.
Confirm before you haul: Hours, mix availability, sales policy and DOT approvals change, sometimes week to week. Call the plant before you schedule trucks. The Pavement Directory is an independent directory and is not affiliated with Vulcan Materials Company.