CSP Benefits

CSP Attributes & Benefits

Corrugated Steel Pipe (CSP) is manufactured to exacting specifications to ensure a high quality product that is optimized for strength, durability, ease of installation, sustainability, and economy. CSP is a flexible material that combines the strength of steel and the stiffness of corrugation with the load bearing abilities of backfill to manage the forces of soil and water. The result is a strong product with outstanding longevity and durability.

Manufacturers offer CSP in a variety of sizes, lengths, corrugations, and thicknesses with coatings to extend life cycles and stand up to aggressive conditions. Understanding the Canadian environment, the CSPI helps engineers decipher information, providing detailed material specifications, load calculations and tables, hydraulic parameters, and design service life analyses to assist in material selection for the right soil and water management solution to support a sustainable future.

CSPI and manufacturers use studies to understand and quantify the durability performance of CSP, including the follow below.

Sustainability

Steel holds the title of the most sustainable culvert, storm sewer and buried bridge solution on the market today. It is 100 percent recyclable, which means it can be recycled into the same material of the same quality again and again. Because of the ease of separation from other metals due to its magnetic properties, millions of tons of steel are pulled from waste centers each year and recycled into new steel products. Even with continued reuse, steel’s strength, durability, versatility, and performance never waivers. But how exactly does steel stack up against the competition? Calculate for yourself here.

Design Service Life (DSL)
By estimating project life designers set a target to ensure the most efficient selection of materials and economical design.
Estimated Material Service Life (EMSL)

Taking into account abrasion loads, soil and water Chemistry, CSP thickness and coating type a material with a service life (EMSL) that matches the Design Service Life (DSL) can be selected.

Estimated Material Service Life (EMSL)

Taking into account abrasion loads, soil and water Chemistry, CSP thickness and coating type a material with a service life (EMSL) that matches the Design Service Life (DSL) can be selected.

CSP Materials

Includes Polymer Laminated Galvalume Steel; Aluminized Type 2 Steel; and Galvanized Steel.

Testing
Simple on-site water testing leads to sound material selection. Registered quality control procedures assure CSP product excellence.

NOT JUST A PIPE! 

Years of dependable service and a multitude of wide ranging installations have led the corrugated steel industry to play a major role in modern engineering technology for drainage systems. Flexible steel conduits play an important role in the form of culverts, storm sewers, spillways, underpasses, conveyor conduits, service tunnels, detention chambers and recharge systems; for highways, railways, airports, municipalities, recreation areas, industrial parks, flood and conservation projects, water pollution abatement and many other programs.

CSP Characteristics

Coating Alternatives

Coating alternatives are used to extend the service life of CSP in specific environments. CSP Materials available (as per CSA G401) include Polymer Laminated Galvanized Steel; Galvalume Steel; Aluminized Type 2 Steel; Galvanized Steel. Pipes and plates may also be coated or lined after fabrication or installation to meet specific site requirements.

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Construction Methods

Properly constructed soil and steel installations give CSP superior strength. Learn about essential handling, installation, and construction procedures for unloading and assembly of CSP, base preparation, placement, and compaction of the backfill. Emphasis is on CSP in embankment installations such as highway culverts.

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Corrugation Profiles

Standard corrugations range in depth from 6.5 mm for the smallest CSP to 237 mm for large Deep Corrugated Long Span Structures.

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Durability

Many factors determine the lifetime performance of a CSP installation. Matching Estimated Material Service Life (EMSL) to Project Design Service Life (DSL) optimizes economics.

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Hydraulic Characteristics and Capacities

Many factors including slope, shape, and size of the inlet and corrugation profile affect the flow of water through a CSP. Use hydraulic formulas and charts for determining water flows and capacities when designing drainage sites that protect people, the environment, and infrastructure.

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Load Carrying / Height of Cover

Structural design formulas and Load Tables ensure optimum design. Check here for inside dimensions, specified wall thickness, and covers for all pipe shapes. Includes sample calculations.

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Pipe Shapes

While round is the most common and often the most efficient and economical shape, CSP is available in various shapes to match specific site and environmental requirements. Shapes include round, pipe arch, elliptical, open bottom arched, pear shaped, box culverts and more. 

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Pipe Sizes & Handling Weights

CSP is lightweight and nestable providing for economical transportation, plus numerous construction and handling advantages. From 150 mm diameters to arches that span more than 25 meters – check here for CSP standard round and pipe-arch shape diameters, end areas, and handling weights.

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Steel Chemistry and Specifications

The steel materials and CSP are manufactured to exacting standards that are detailed in Canadian Standards Association CSA G401.

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Corrugated Steel Pipe Institute

P.O. Box 20104

Kitchener, Ontario

N2P 1B4
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Contact Us
Corrugated Steel Pipe Institute

P.O. Box 20104

Kitchener, Ontario

N2P 1B4
Member