Martin Marietta
Miramar Asphalt
9229 Harris Plant Road, San Diego, CA 92145
- Caltrans approved
- Outside sales
- Hot mix (HMA)
- Aggregates
- Recycling
- Sells millings
- Checked Oct 10, 2026
Before you haul
What to settle with the plant before trucks leave the yard.
- Outside sales
- Sells to outside contractors
- Current hours
- Mon–Fri 6:00 AM–3:00 PMLoadout hours — confirm today’s
- 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
- Not in posted hoursAsk about Saturday runs
- Truck access
- See site and truck accessAccess notes on file
Plant notes
Miramar Asphalt operates Monday–Friday, 6:30 AM–3:00 PM, according to Martin Marietta. The HMA batch plant's Caltrans approval expires July 24, 2027. Miramar Recycle operates at the same address with separate phone (858) 715-5600 and published hours of Monday–Friday, 6:30 AM–3:30 PM. San Diego County documents acceptance and processing of clean asphalt, concrete and fill dirt. Call before delivering recycling loads to confirm material restrictions and fees. Asphalt loadout hours, small-load acceptance, payment arrangements and scale services remain unverified.
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
- Martin Marietta
- Plant type
- Fixed · hot mix asphalt, aggregates and recycling
- Mixing method
- Batch plant
- County
- San Diego County
- Caltrans
- On the Caltrans approved-plant listRenewed · valid through July 24, 2027
- Address
- 9229 Harris Plant Road, San Diego, CA 92145
- GPS coordinates
- 32.86076, -117.11992
- Website
- martinmarietta.com
- Plant page
- The operator’s page for this plant
- Details checked
- October 10, 2026
Ordering and sales
- Plant phone
- (858) 715-5600
- Dispatch phone
- (858) 715-5639
- Sales department
- (858) 513-0611
- 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
Technical and lab
- Lab and technical notes
- Caltrans District 11 identifies Miramar Asphalt as an approved HMA batch plant at 9229 Harris Plant Road, valid through July 24, 2027. No separate DOT plant ID or approved HMA treatments are specified in the current MPQP listing. Current binder grades, RAP/LAS/WMA capabilities, on-site laboratory accreditation, rated hourly capacity and silo storage are unverified.
Operations
- Plant hours
- Mon–Fri 6:00 AM–3:00 PM
- Loadout hours
- Mon–Fri 6:00 AM–3:00 PM
- Seasonal schedule
- Published asphalt facility hours are Monday–Friday, 6:30 AM–3:00 PM. Seasonal schedule changes, winter shutdowns and holiday production hours have not been confirmed. Call (858) 513-0611 before scheduling material pickup.
Mixes and products
- HMA · listed
- RHMA · not listed, ask
- Warm mix · not listed, ask
- RAP · not listed, ask
- DOT spec · plant approved
- Aggregates · listed
Hot mix asphalt (HMA)
- Hot Mix Asphalt (HMA)
Agency and DOT specification mixes
The plant is on the Caltrans approved-plant list. Confirm the mix design for your job.
Aggregates
- Construction Aggregates
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 Miramar 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
- 9229 Harris Plant Road, San Diego, CA 92145
- GPS
- 32.86076, -117.11992
Truck access notes
Miramar Asphalt is located at 9229 Harris Plant Road, San Diego. The same property has separate aggregate recycling and ready-mix operations. Confirm the correct HMA truck entrance, scale-house location, onsite staging, truck length restrictions and last-load cutoff before arrival. Truck scale and public weighing availability have not been verified.
Nearby asphalt plants
6 other plants within a 30 min drive of Miramar Asphalt, by road with typical traffic.
Route to 1. Hanson Aggregates — 1 min (0.0 mi) by road, typical traffic.
| Map number# | Plant | Drive | Road miles | Outside sales |
|---|---|---|---|---|
| 1 | Hanson AggregatesSan Diego, CA · permit record, not yet reviewed0.0 mi by road · Outside sales: UnconfirmedDirections from Miramar Asphalt to Hanson Aggregates | 1 min | 0.0 mi | Unconfirmed |
| 2 | Vulcan Materials – Carroll Canyon AsphaltVulcan Materials Company · San Diego, CA3.2 mi by road · Outside sales: YesDirections from Miramar Asphalt to Vulcan Materials – Carroll Canyon Asphalt | 6 min | 3.2 mi | Yes |
| 3 | Cemex Mission Valley PlantSan Diego, CA · permit record, not yet reviewed8.8 mi by road · Outside sales: UnconfirmedDirections from Miramar Asphalt to Cemex Mission Valley Plant | 12 min | 8.8 mi | Unconfirmed |
| 4 | Industrial AsphaltSan Diego, CA · permit record, not yet reviewed9.0 mi by road · Outside sales: UnconfirmedDirections from Miramar Asphalt to Industrial Asphalt | 12 min | 9.0 mi | Unconfirmed |
| 5 | Martin Marietta – Lakeside-Vigilante AsphaltMartin Marietta · Lakeside, CA19 mi by road · Outside sales: YesDirections from Miramar Asphalt to Martin Marietta – Lakeside-Vigilante Asphalt | 22 min | 19 mi | Yes |
| 6 | South Coast Materials Co Plt 4San Marcos, CA · permit record, not yet reviewed26 mi by road · Outside sales: UnconfirmedDirections from Miramar Asphalt to South Coast Materials Co Plt 4 | 28 min | 26 mi | Unconfirmed |
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 Miramar Asphalt
Martin Marietta Materials operates Miramar Asphalt, a Caltrans-approved hot mix asphalt batch plant at 9229 Harris Plant Road in San Diego, California. The property also includes aggregate recycling operations that accept clean asphalt and concrete. The HMA plant is approved through July 24, 2027. Contact Southern California Inside Sales at (858) 513-0611 for mix availability, purchasing requirements and loading schedules.
Areas served: San Diego · El Cajon · La Mesa · Poway · Lakeside · Surrounding unincorporated San Diego County communities
More Martin Marietta plants
- Martin Marietta – Lakeside-Vigilante AsphaltLakeside, CA · 22 min (19 mi) by road
- Santa Margarita AsphaltSanta Margarita, CA · 5 hr 1 min (318 mi) by road
- Martin Marietta – Merced AsphaltMerced, CA · 6 hr 19 min (410 mi) by road
- Berkeley AsphaltBerkeley, CA · 7 hr 34 min (497 mi) by road
Plan the haul
- Asphalt tonnage calculatorTons to order before you call.
- Trucking calculatorCycle times and trucks for this haul.
- Asphalt price per tonPlant price, trucking and delivered cost.
- Asphalt plants near San DiegoEvery 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.
Miramar Asphalt: common questions
Does Miramar Asphalt sell asphalt to outside contractors?
Yes. Miramar Asphalt sells hot mix to outside contractors. Call (858) 715-5600 to confirm account, pickup and delivery terms before your first order.
How do I order asphalt from Miramar Asphalt?
Call the sales department at (858) 513-0611. Have the mix, tonnage and pickup date ready, and ask what a first-time account needs.
What are Miramar Asphalt's hours?
Mon–Fri 6:00 AM–3:00 PM. Loadout: Mon–Fri 6:00 AM–3:00 PM. Published asphalt facility hours are Monday–Friday, 6:30 AM–3:00 PM. Seasonal schedule changes, winter shutdowns and holiday production hours have not been confirmed. Call (858) 513-0611 before scheduling material pickup.
Does Miramar Asphalt take old asphalt or sell millings?
Miramar Asphalt takes in old asphalt (RAP and grindings) for recycling and sells millings or recycled asphalt base. Call (858) 715-5600 to confirm what it accepts or has in stock before you send a load.
What asphalt mixes does Miramar Asphalt make?
Miramar Asphalt lists Hot Mix Asphalt (HMA) and Construction Aggregates. What runs on a given day depends on the plant's schedule, so confirm your mix when you order.
Does Miramar Asphalt sell aggregates?
Yes. As well as hot mix asphalt, Miramar Asphalt sells aggregates. Call (858) 715-5600 to confirm the material, gradation and quantity you need before you send trucks.
What areas does Miramar Asphalt serve?
Miramar Asphalt serves San Diego, El Cajon, La Mesa, Poway, Lakeside and Surrounding unincorporated San Diego County communities. Haul time still decides whether it can supply a given job, so measure from the site before you order.
Is Miramar Asphalt Caltrans-approved?
It was on the Caltrans approved-plant list when this record was last checked, on October 10, 2026. Renewed · valid through July 24, 2027. Approvals lapse and renew, and a public job still needs its own mix design approved, so confirm both before you bid.
Where is Miramar Asphalt?
9229 Harris Plant Road, San Diego, CA 92145, in San Diego County.
What other asphalt plants are near San Diego?
The closest by road in this directory are Hanson Aggregates in San Diego (1 min (0.0 mi) by road), Vulcan Materials – Carroll Canyon Asphalt in San Diego (6 min (3.2 mi) by road) and Cemex Mission Valley Plant in San Diego (12 min (8.8 mi) by road), driving from Miramar Asphalt with typical traffic. Call ahead before you switch plants — the nearest one only helps if it will load your trucks.
Who operates Miramar Asphalt?
Martin Marietta operates Miramar Asphalt.
Verified sources and corrections
Details checked October 10, 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 — martinmarietta.com
- Operator website — martinmarietta.com
- Caltrans approved-plant list — Plant listed
- EPA facility registry — Federal facility record
Record last updated October 10, 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 Martin Marietta.