Everything You Need To Know To Find The Best Corrugated Metal Culvert Pipe

Understanding your local requirements for culvert pipes and drainage projects isn’t always straightforward. Below you’ll find some of the basics you’ll need to know when shopping for culverts, as well as some beneficial tools and resources to help make shopping for culvert pipes an easier experience. These are some of the most common questions we’re asked when our clients are researching culverts, and we hope these resources can help you in your journey.

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What type of culvert pipes exist? Which culvert is best?

There are two common types of culverts, Corrugated Steel Pipe (CSP) and High-Density Polyethylene Pipe (HDPE). CSP is available in multiple factory-applied finishes to accommodate the wide variety of performance and hydrology considerations including Galvanized, Aluminized Type 2, and Polymer- Laminated. HDPE HDPE Culvert ranges from 100mm to 900mm in diameter. It combines a smooth interior wall and annular exterior corrugations for gravity-flow drainage applications.

CSP offers the optimum combination of strength, flexibility and performance, and is available in round or pipe arch profiles.

HDPE Culvert is more lightweight and cost-effective when compared to CSP. While maintaining durability, chemical resistance, and UV resistance.

CSP Culvert Profiles

HDPE Benefits

How do I properly install culvert?

To learn more about the general installation guidelines of CSP, view this Corrugated Steel Pipe Institute (CSPI) installation manual.

The CSPI is the association of Canadian corrugated steel pipe (CSP) manufacturers. An impartial organization that works with manufacturers, engineers, and municipalities around the world to gather data and information.

For Installation steps, view page 5 of our HDPE culvert brochure.

Culvert warranties are case-specific. Let us know if you have any issues and we will assess the situation to find a solution. Make sure to follow proper installation procedures to reduce the risk of issues. Most importantly, ensure that the product you’re buying is the correct one for your job. We’re more than happy to assist you with the process of culvert selection.

What culvert does my municipality require?

We highly recommend checking your local municipal requirements prior to purchasing your culvert. Municipalities can have specific regulations for where or how HDPE and CSP culverts can be installed.

CSP: Manufactured to CSA Standard G401

HDPE: Manufactured to meet or exceed the cell class requirements of ASTM D.

Roadauthority.com offers some guidelines, information, and prequalification’s for specific culverts being used in public infrastructure. They also offer links to the CSP and HDPE culverts available at Ontario Agra. Both our CSP and HDPE culverts are fully certified to meet or exceed municipal requirements.

If you have any questions that weren’t addressed in this article, please reach out to our sales team for assistance. With years of knowledge and experience across the province, we’ve got the answers you’re looking for.

They are commonly used for culverts, stormwater management, drainage systems, and other applications where strength and longevity are crucial. In this article, we will explore the different sizes of corrugated steel pipes, their specifications, and a general price guide to help you choose the right CSP for your project.

Corrugated Steel Pipe Sizes and Specifications

Corrugated steel pipes come in various diameters, thicknesses, and lengths to suit different project requirements. The most common sizes range from small diameters of 6 inches to large diameters of up to 144 inches or more. Here’s a detailed breakdown of the standard sizes and their specifications:

1. Diameter

• Small Diameter CSP: 6 inches (150 mm) to 24 inches (600 mm)

• Medium Diameter CSP: 30 inches (750 mm) to 72 inches ( mm)

• Large Diameter CSP: 78 inches ( mm) to 144 inches ( mm) or larger

2. Corrugation Profiles

Corrugation profiles refer to the pattern of ridges and grooves on the pipe, which provide structural strength. Common corrugation profiles include:

• 2 2/3” x 1/2” (68 mm x 13 mm): Suitable for smaller pipes and light-duty applications.

• 3” x 1” (76 mm x 25 mm): Standard for most medium-sized pipes.

• 5” x 1” (125 mm x 25 mm): Used for larger pipes that require additional strength.

• 9” x 2.5” (229 mm x 64 mm): For extra-large pipes used in heavy-duty applications.

3. Thickness

The wall thickness of corrugated steel pipes is measured in gauge. The thickness you choose depends on the load-bearing requirements of your project. Common gauges include:

• 16 Gauge (1.52 mm): Light-duty applications.

• 14 Gauge (1.91 mm): Standard for most medium-duty applications.

• 12 Gauge (2.66 mm): Heavy-duty applications.

  For more information, please visit Corrugated Metal Culvert Pipe.

• 10 Gauge (3.51 mm): Extra heavy-duty applications, such as culverts under highways.

4. Lengths

CSP is typically available in standard lengths of 20 feet (6 meters) or 24 feet (7.3 meters), but custom lengths can be manufactured based on project requirements.

5. Coating and Lining Options

To enhance durability and resist corrosion, CSP can be coated or lined with various materials:

• Galvanized Steel: Standard zinc coating for moderate corrosion resistance.

• Aluminized Type 2: Offers better corrosion resistance than galvanized.

• Polymer Coating: Provides superior protection against corrosion and abrasion.

• Asphalt Lining: Improves hydraulic performance and resistance to corrosion.

Corrugated Steel Pipe Sizes Chart

Here’s a table showcasing the typical sizes of corrugated steel pipes along with their specifications:

Corrugated Steel Pipe Price Guide

The price of corrugated steel pipes varies based on size, thickness, coating, and other factors. Below is a general price guide:

1. Small Diameter CSP (6” to 24”):

• Galvanized: $10 to $20 per linear foot

• Aluminized: $15 to $25 per linear foot

• Polymer Coated: $20 to $30 per linear foot

2. Medium Diameter CSP (30” to 72”):

• Galvanized: $25 to $50 per linear foot

• Aluminized: $30 to $60 per linear foot

• Polymer Coated: $35 to $70 per linear foot

3. Large Diameter CSP (78” and above):

• Galvanized: $50 to $100+ per linear foot

• Aluminized: $60 to $120+ per linear foot

• Polymer Coated: $70 to $140+ per linear foot

Factors Affecting CSP Pricing:

1. Material Costs: Steel prices fluctuate, impacting the overall cost of CSP.

2. Coating and Lining: Additional coatings, such as polymer or asphalt lining, increase the cost.

3. Transportation: Shipping large-diameter pipes can be expensive due to their size and weight.

4. Custom Sizes: Non-standard sizes or lengths may result in higher costs due to special manufacturing processes.

Choosing the Right Corrugated Steel Pipe

When selecting a corrugated steel pipe for your project, consider the following:

• Load Requirements: Determine the weight and pressure the pipe will need to withstand.

• Environmental Conditions: Consider the potential for corrosion, abrasion, and exposure to chemicals.

• Hydraulic Needs: Choose a size and lining that provide the necessary flow capacity.

• Budget: Balance the specifications with your project budget to find the best solution.

Conclusion

Corrugated steel pipes are versatile and durable solutions for many infrastructure projects. Understanding the various sizes, specifications, and pricing will help you make an informed decision for your next project. Whether you need a small diameter pipe for drainage or a large diameter pipe for a culvert, there is a CSP option that meets your requirements. Always consult with a trusted supplier to ensure you choose the right corrugated steel pipe for your specific needs.

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