All You Need To Know About Corrugated Steel Pipe

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Does Pacific Corrugated Pipe Company actually manufacture both metal and HDPE corrugated pipe?

Yes, we have been producing both corrugated metal pipe and corrugated HDPE plastic pipe for decades. This give our customers the distinct advantage of shipping both pipe materials on the same truck which ultimately decrease the amount of trucks and lowers your total cost.

What are your operating hours?

Generally speaking we are open from 7am- 3:30pm but hour vary slightly by location and by the time of year so check with your local PCP representative.

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Are you located throughout the United States?

No, we are located in the western United States only. We are still owned by the same family that established our business back in 1935 (4th generation!). For the most part, we service the 13 western states including Alaska and Hawaii but have shipped product to many other states.

Does all of your corrugated metal pipe meet AASHTO and ASTM specification for steel pipe?


What is the maximum diameter of corrugated metal pipe that you produce?

We have manufactured CMP in diameters of about 144 inches in most of our locations but call your local representative for actual sizes in your area. However, if you have a large project that calls for pipe that is over 20 foot in diameter it might allow us to utilize our mobile mill production team. Check out our mobile mill page on our website or ask your PCP representative.

What size diameter pipe do you stock?

This varies from plant to plant and day to day depending on demand. However, here is a good rule of thumb for corrugated metal pipe 6” – 144”. Call your local PCP representative for the most up to date information.

Do you have your own trucks to deliver locally?

Some of our locations have the ability of local delivery but for the most part we use 3rd party trucking.

What is your production lead-time?

This varies by facility but if you advise your local PCP representative of your product needs and delivery date we will do everything in our power to meet your requirements.

What lengths do you have in stock?

Again, this varies from facility to facility but generally speaking we have 6” – 48” in 20-foot lengths and 54” – 96” in 25- or 30-foot lengths.

Can you cut your stock pipe or manufactured pipe to length?

The short answer is, yes. There are cutting charges for stock pipe, so you should review the specifics of your project with your local PCP representative. Also, if your project calls for a large production run, we can cut your pipe to virtually any length and the cost will be reflected in your quote.

Does your pipe work for fire rings and do you have these available in stock?

Our metal pipe works very well for this application… our plastic pipe, not so much. As for stocking, some of our locations stock CMP pipe in fire ring sizes but you should call your local PCP representative to confirm for your most local facility.

What size CMP culvert do I need for my driveway or crossing?

This can vary by county or public works so give your local PCP representative a call for guidance on your particular area.

Do you sell planter rings or other short pieces that can be used for other applications?

Generally speaking, yes we do. Call your local PCP representative to see if your most local facility has them in stock.

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Do you make window wells?

No, all our CMP is produced with a helical corrugation not annular. This means our corrugated has an “angled” corrugation as opposed to the vertical corrugation needed for window wells.

What are the price differences between CSP and HDPE?

This varies by size but at times it makes more pricing sense to go with one material over the other. Sometimes metal is cheaper than plastic and vis versa. Since we manufacture both materials we are happy to offer you the low-cost alternative or whatever material you prefer.

How many pieces per bundle of pipe and how many fit on a truck?

Give your local PCP representative a call so we can send you a load chart.

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Do you have the expertise to custom fabricate intricate fitting for my project?

Absolutely…yes, each one of our production facilities is equipped with a complete fabrication facility. We fabricate different styles of inlets, flashboard risers, fittings and much more. Our fabrication experts have fabricated some very detailed and complicated fittings, so bring us your challenge.

Where are your production locations?

We have 5 production facilities spread throughout the western United States. These facilities are currently shipping product to the 13 western states including Alaska and Hawaii. We also supply into western Canada and Mexico. Also, we have separate locations that only stock product. Check out our Contact Us page for more detailed contact information.

Do you sell to the public?

Yes, check out our locations on our website and come on by.

What is the per foot weight of your CMP pipe?

This varies greatly by diameter and gage. The best option would be to review your specifics with your local PCP representative.

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Can you supply some of the ancillary products that are generally needed on a stormwater related project?

Yes, we are combining many of our shipment to include items like geogrid, geotextile fabrics and grids, gabions, gates, end sections, grates, manholes and much, much more. Just let your PCP contact know what you need and there is a good chance we can include it all on a single order.

What types of steel do you manufacture on your pipe line?

We can produce our pipe utilizing the following steel: galvanized, aluminized, poly-coated, aluminum and can asphalt-coat our pipe in some markets. This does vary by market so confirm with your local PCP rep.

Can you produce Spiral Rib pipe?

Not only can we produce it, but we were the original inventors of this corrugated profile. If your project requires better hydraulic efficiencies, then this is an ideal profile.

Can you produce slotted drain pipe?

Yes, our slotted drain product has been installed in virtually all the western United States.

Do you have any resources and/or calculators that I can use and is there a charge?

Yes, we do. Go to the top navigation bar of our website and click on the “Resource Library” tab. Each of these calculators are available at no charge to you. If we don’t have what you are looking for just call your local PCP representative and we can probably send it to you.

Can you ship to anywhere in the United States?

We could but it might be best if we introduce you to some of our other industry friends that may be located closer to your project. Shipping product from the west coast to the east coast would likely be too cost prohibitive. Give us a call, we will do all we can to steer you in the right direction.

If I have a large amount of water volume to capture but limited space to install what are my best options?

Again, it depends on your specifics, so we recommend a more detailed discussion with your local PCP representative. That said, many times an arched pipe solution works perfectly for this application, so this might be your answer.

What’s the best way to connect your new pipe to existing pipe?

It’s generally recommended to use a dimple band. It’s our universal band that can connect dissimilar end treatments of pipe. Give us a call with any specifics that are unique.

Can you tell me the proper cover for my pipe project?

This is another area that requires all the site specifics so contact your local PCP representative. However, if you are looking for basic guidelines you can refer to the “Fill height chart” section of our website.

Is there a minimum cover that is recommended?

It depends on the diameter of pipe but generally speaking 12” is the proper minimum cover to make it traffic rated. Again, we recommend you review fill height charts on our website or contact your local PCP representative with your specifics.

Have More Questions?

Check Out our Other FAQ Pages or contact our office

Plastic Pipe (HDPE) FAQ Allied Product FAQ

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