CalPortland – Paso Robles Asphalt Plant
188 Volpi Ysabel Road, Paso Robles, CA 93446
- Caltrans approved
- Outside sales
- Hot mix (HMA)
- Checked Oct 4, 2026
Before you haul
What to settle with the plant before trucks leave the yard.
- Outside sales
- Sells to outside contractors
- Current hours
- Call plantLoadout hours — confirm today’s
- Account
- Not needed if paying COD
- 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
- In posted hours
- Truck access
- See site and truck accessAccess notes on file
Plant notes
CalPortland operates this site as an active asphalt-production facility serving Central Coast construction and paving projects. Caltrans identifies the plant as an HMA batch facility with RAP and LAS capabilities. Regulatory records may list the location as Templeton, while CalPortland currently markets it as the Paso Robles Asphalt Plant.
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
- CalPortland
- Plant type
- Fixed · hot mix asphalt
- Mixing method
- Batch plant
- County
- San Luis Obispo County
- Caltrans
- On the Caltrans approved-plant listRenewed · valid through January 28, 2027
- Address
- 188 Volpi Ysabel Road, Paso Robles, CA 93446
- GPS coordinates
- 35.58235, -120.69622
- Website
- calportland.com
- Plant page
- The operator’s page for this plant
- EPA air permits
- CASLO0000607900009
- Details checked
- October 4, 2026
Ordering and sales
- Plant phone
- (805) 345-3400
- Sales department
- On the plant line
- Outside sales
- Sells to outside contractors
Ask for your mix by name, the day’s loading hours, and the minimum load.
Recycled asphalt
- Old asphalt
- Takes old asphalt (RAP, grindings) to recycle
Operations
- Plant hours
- Mon-Fri 9:00am-5:00pm, Sat. & Sun. Closed
- Loadout hours
- Call plant
- Seasonal schedule
- Production and loadout schedules may vary with paving demand, weather and project requirements. Contact the plant before dispatching trucks to confirm current hours, mix availability and pickup schedule.
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
- Type A HMA
- Roadway Asphalt Mixes
- Commercial Paving Asphalt Mixes
Recycled asphalt (RAP) mixes
- RAP-Containing Asphalt Mixes
- Reclaimed Asphalt Pavement (RAP)
- High-Recycled-Content Asphalt Mixes
Agency and DOT specification mixes
- Caltrans Specification HMA
Specialty and custom mixes
- Custom Asphalt Mixes
Aggregates
- Lime-Treated Aggregate (LAS) Mixes
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 CalPortland – Paso Robles Asphalt Plant 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
- 188 Volpi Ysabel Road, Paso Robles, CA 93446
- GPS
- 35.58235, -120.69622
- Scale
- Scale on site
Truck access notes
Active asphalt production facility with regular heavy-truck traffic. Confirm mix number, tonnage and pickup schedule before arrival. Follow posted plant routes, check-in procedures and PPE requirements.
Nearby asphalt plants
5 other plants within a 1 hr 30 min drive of CalPortland – Paso Robles Asphalt Plant, by road with typical traffic.
Route to 1. Santa Margarita Asphalt — 17 min (15 mi) by road, typical traffic.
| Map number# | Plant | Drive | Road miles | Outside sales |
|---|---|---|---|---|
| 1 | Santa Margarita AsphaltMartin Marietta · Santa Margarita, CA15 mi by road · Outside sales: YesDirections from CalPortland – Paso Robles Asphalt Plant to Santa Margarita Asphalt | 17 min | 15 mi | Yes |
| 2 | Sisquoc Sand, Rock and Gravel PlantSanta Maria, CA · permit record, not yet reviewed69 mi by road · Outside sales: UnconfirmedDirections from CalPortland – Paso Robles Asphalt Plant to Sisquoc Sand, Rock and Gravel Plant | 1 hr 9 min | 69 mi | Unconfirmed |
| 3 | Calportland Company Garey PlantSanta Maria, CA · permit record, not yet reviewed73 mi by road · Outside sales: UnconfirmedDirections from CalPortland – Paso Robles Asphalt Plant to Calportland Company Garey Plant | 1 hr 22 min | 73 mi | Unconfirmed |
| 4 | Coalinga FacilityGranite Construction · Coalinga, CA78 mi by road · Outside sales: UnconfirmedDirections from CalPortland – Paso Robles Asphalt Plant to Coalinga Facility | 1 hr 22 min | 78 mi | Unconfirmed |
| 5 | Gardner FacilityGranite Construction · Buellton, CA92 mi by road · Outside sales: YesDirections from CalPortland – Paso Robles Asphalt Plant to Gardner Facility | 1 hr 25 min | 92 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 CalPortland – Paso Robles Asphalt Plant
CalPortland’s Paso Robles Asphalt Plant at 188 Volpi Ysabel Road is a fixed HMA batch plant serving San Luis Obispo County and the Central Coast. The facility produces asphalt for highway, municipal, commercial and private paving projects. Caltrans lists the plant as active in its Material Plant Quality Program with RAP and LAS capabilities.
Areas served: Paso Robles · Templeton · Atascadero · San Miguel · Creston · Santa Margarita · San Luis Obispo · San Luis Obispo County · North County San Luis Obispo · California Central Coast
Plan the haul
- Asphalt tonnage calculatorTons to order before you call.
- Trucking calculatorCycle times and trucks for this haul.
- Asphalt plants near Paso RoblesEvery 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.
CalPortland – Paso Robles Asphalt Plant: common questions
Does CalPortland – Paso Robles Asphalt Plant sell asphalt to outside contractors?
Yes. CalPortland – Paso Robles Asphalt Plant sells hot mix to outside contractors. Call (805) 345-3400 to confirm account, pickup and delivery terms before your first order.
How do I order asphalt from CalPortland – Paso Robles Asphalt Plant?
Call the sales department at (805) 345-3400. No account is needed if you pay COD. Have the mix, tonnage and pickup date ready.
What are CalPortland – Paso Robles Asphalt Plant's hours?
Mon-Fri 9:00am-5:00pm, Sat. & Sun. Closed. Loadout: Call plant. Production and loadout schedules may vary with paving demand, weather and project requirements. Contact the plant before dispatching trucks to confirm current hours, mix availability and pickup schedule.
Does CalPortland – Paso Robles Asphalt Plant take old asphalt or sell millings?
CalPortland – Paso Robles Asphalt Plant takes in old asphalt (RAP and grindings) for recycling. Call (805) 345-3400 to confirm what it accepts or has in stock before you send a load.
What asphalt mixes does CalPortland – Paso Robles Asphalt Plant make?
CalPortland – Paso Robles Asphalt Plant lists Hot Mix Asphalt (HMA), Asphalt Concrete, Type A HMA, RAP-Containing Asphalt Mixes, Reclaimed Asphalt Pavement (RAP), Lime-Treated Aggregate (LAS) Mixes, Caltrans Specification HMA, Custom Asphalt Mixes, High-Recycled-Content Asphalt Mixes, Roadway Asphalt Mixes and Commercial Paving Asphalt Mixes. What runs on a given day depends on the plant's schedule, so confirm your mix when you order.
What areas does CalPortland – Paso Robles Asphalt Plant serve?
CalPortland – Paso Robles Asphalt Plant serves Paso Robles, Templeton, Atascadero, San Miguel, Creston, Santa Margarita, San Luis Obispo, San Luis Obispo County, North County San Luis Obispo and California Central Coast. Haul time still decides whether it can supply a given job, so measure from the site before you order.
Is CalPortland – Paso Robles Asphalt Plant Caltrans-approved?
It was on the Caltrans approved-plant list when this record was last checked, on October 4, 2026. Renewed · valid through January 28, 2027. Approvals lapse and renew, and a public job still needs its own mix design approved, so confirm both before you bid.
Where is CalPortland – Paso Robles Asphalt Plant?
188 Volpi Ysabel Road, Paso Robles, CA 93446, in San Luis Obispo County.
What other asphalt plants are near Paso Robles?
The closest by road in this directory are Santa Margarita Asphalt in Santa Margarita (17 min (15 mi) by road), Sisquoc Sand, Rock and Gravel Plant in Santa Maria (1 hr 9 min (69 mi) by road) and Calportland Company Garey Plant in Santa Maria (1 hr 22 min (73 mi) by road), driving from CalPortland – Paso Robles Asphalt Plant 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 4, 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 — calportland.com
- Operator website — calportland.com
- Caltrans approved-plant list — Plant listed
- EPA facility registry — Air permit CASLO0000607900009
Record last updated October 4, 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 CalPortland.