Martin Marietta Materials, Inc.
HWY 34 Asphalt Plant
27486 County Road 13, Johnstown, CO 80534
- Outside contractor sales confirmed
- Hot mix (HMA)
- Checked Oct 24, 2026
Before you haul
What to settle with the plant before trucks leave the yard.
- Outside sales
- Sells to outside contractors
- Current hours
- Mon to Fri, 8:00 AM to 4:00 PMPosted — confirm today’s loadout
- 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
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 Materials, Inc.
- Plant type
- Fixed · hot mix asphalt
- County
- Weld County
- State DOT
- Not yet checked against a DOT list
- Address
- 27486 County Road 13, Johnstown, CO 80534
- GPS coordinates
- 40.39800, -104.93900
- Website
- martinmarietta.com
- Plant page
- The operator’s page for this plant
- Details checked
- October 24, 2026
Ordering and sales
- Plant phone
- (970) 407-3600
- Sales department
- On the plant line
- 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.
Operations
- Plant hours
- Mon to Fri, 8:00 AM to 4:00 PM
- Seasonal schedule
- Martin Marietta posts these hours on its Johnstown plant page. Call ahead to confirm production days, holiday closures and the last-load time.
Mixes and products
- HMA · listed
- RHMA · not listed, ask
- Warm mix · not listed, ask
- RAP · not listed, ask
- DOT spec · not listed, ask
Hot mix asphalt (HMA)
- Hot Mix Asphalt (HMA)
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 HWY 34 Asphalt Plant yet. Plant prices move with the liquid asphalt index and the quantity, so call for today's price — and if you have been quoted or bought here recently, you can add the price below.
Report a price you were quoted or paid
Site and truck access
Google satellite imagery centred on the plant’s coordinates. Zoom out to see the roads in.
- Gate address
- 27486 County Road 13, Johnstown, CO 80534
- GPS
- 40.39800, -104.93900
Truck access notes
Active asphalt plant with heavy truck traffic. Call (970) 407-3600 before arrival to confirm order status, mix availability, check-in procedure and last-load time.
Nearby asphalt plants
4 other plants within a 30 min drive of HWY 34 Asphalt Plant, by road with typical traffic.
Route to 1. Fort Collins Asphalt Plant — 16 min (10 mi) by road, typical traffic.
| Map number# | Plant | Drive | Road miles | Outside sales |
|---|---|---|---|---|
| 1 | Fort Collins Asphalt PlantSimon Contractors · Fort Collins, CO10 mi by road · Outside sales: YesDirections from HWY 34 Asphalt Plant to Fort Collins Asphalt Plant | 16 min | 10 mi | Yes |
| 2 | Greeley Asphalt PlantGreeley, CO · permit record, not yet reviewed13 mi by road · Outside sales: UnconfirmedDirections from HWY 34 Asphalt Plant to Greeley Asphalt Plant | 19 min | 13 mi | Unconfirmed |
| 3 | Camas Colorado Incorporated Bestway Paving DivisionGreeley, CO · permit record, not yet reviewed13 mi by road · Outside sales: UnconfirmedDirections from HWY 34 Asphalt Plant to Camas Colorado Incorporated Bestway Paving Division | 21 min | 13 mi | Unconfirmed |
| 4 | Lafarge Greeley Ready Mix & Asphalt PlantGreeley, CO · permit record, not yet reviewed14 mi by road · Outside sales: UnconfirmedDirections from HWY 34 Asphalt Plant to Lafarge Greeley Ready Mix & Asphalt Plant | 21 min | 14 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 HWY 34 Asphalt Plant
HWY 34 Asphalt Plant is a Martin Marietta hot mix asphalt plant on County Road 13 near Highway 34 in Johnstown. Martin Marietta sells the plant's hot mix to paving contractors and lists (970) 407-3600 as the Northern A&P dispatch line for orders. Call ahead to confirm mixes, pricing, account setup and loadout times.
Areas served: Johnstown · Loveland · Milliken · Windsor · Berthoud · Weld County
More Martin Marietta Materials, Inc. plants
- Spec Agg Asphalt PlantGolden, CO · 1 hr 4 min (62 mi) by road
Plan the haul
- How to use this directoryWhat to know before you call a plant.
- Asphalt tonnage calculatorTons to order before you call.
- Trucking calculatorCycle times and trucks for this haul.
- Haul PlannerRank plants by delivered cost for a job.
- Asphalt price per tonPlant price, trucking and delivered cost.
- Asphalt plants near JohnstownEvery plant within a haul of your site.
Who lays the mix
Need the work done rather than the mix? Compare paving and pavement maintenance contractors serving the area.
HWY 34 Asphalt Plant: common questions
Does HWY 34 Asphalt Plant sell asphalt to outside contractors?
Yes. HWY 34 Asphalt Plant sells hot mix to outside contractors. Call (970) 407-3600 to confirm account, pickup and delivery terms before your first order.
How do I order asphalt from HWY 34 Asphalt Plant?
Call the sales department at (970) 407-3600. Have the mix, tonnage and pickup date ready, and ask what a first-time account needs.
What are HWY 34 Asphalt Plant's hours?
Mon to Fri, 8:00 AM to 4:00 PM. Martin Marietta posts these hours on its Johnstown plant page. Call ahead to confirm production days, holiday closures and the last-load time.
What asphalt mixes does HWY 34 Asphalt Plant make?
HWY 34 Asphalt Plant lists Hot Mix Asphalt (HMA). What runs on a given day depends on the plant's schedule, so confirm your mix when you order.
What areas does HWY 34 Asphalt Plant serve?
HWY 34 Asphalt Plant serves Johnstown, Loveland, Milliken, Windsor, Berthoud and Weld County. Haul time still decides whether it can supply a given job, so measure from the site before you order.
Where is HWY 34 Asphalt Plant?
27486 County Road 13, Johnstown, CO 80534, in Weld County.
What other asphalt plants are near Johnstown?
The closest by road in this directory are Fort Collins Asphalt Plant in Fort Collins (16 min (10 mi) by road), Greeley Asphalt Plant in Greeley (19 min (13 mi) by road) and Camas Colorado Incorporated Bestway Paving Division in Greeley (21 min (13 mi) by road), driving from HWY 34 Asphalt Plant with typical traffic. Call ahead before you switch plants: the nearest one only helps if it will load your trucks.
Who operates HWY 34 Asphalt Plant?
Martin Marietta Materials, Inc. operates HWY 34 Asphalt Plant.
Verified sources and corrections
Details checked October 24, 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
- Added by The Pavement Directory
Record last updated October 24, 2026.
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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 Materials, Inc..