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HEL-COR® helically corrugated metal drainage pipe provides the power to withstand severe environmental conditions and burial depths associated with drainage systems, culverts, storm sewers, and stormwater detention systems.
HEL-COR service life exceeds 100 years with proper specification that meets all AASHTO and ASTM pipe specifications, and it can handle fill heights in excess of 100 feet.
A wide choice of coatings including galvanized steel, aluminized steel type 2 (ALT2), and polymer-coated steel are available to meet a variety of durability requirements. A variety of wall thicknesses (gages), corrugations, diameters, and pipe section lengths permit a choice of materials to meet specific job site requirements.
Standard fittings include tees, wyes, elbows, saddle branches, reducers and manifolds for detention systems. Manholes and catch basins can be fabricated to meet specific job requirements. HEL-COR is manufactured with continuous locked seams with annular corrugated ends enabling the use of a variety of standard couplings including soil-tight HUGGER® Bands and QUICK STAB® Joints.
| FEATURES | BENEFITS |
|---|---|
| Long service life | Exceeds 100-years with proper specification that meets all AASHTO and ASTM pipe specifications |
| Strength | Can handle fill heights in excess of 100 feet |
| Versatile | Available in a wide variety of shapes and sizes; diameters from 6 inches to 15 feet |
| Flexible | Forgiving during the rigors of installation and allows for steep slope applications |
| Lightweight | Easier and less expensive to install than concrete pipe |
Contech large-diameter CMP is used as a deep foundation form at the base of the windmill. CMP is placed vertically to act as a form for the poured-in-place concrete foundation.
Our corrugated metal pipe is the most durable, economic, and widely chosen material for most drainage culverts applications. With a variety of CMP products including helically corrugated HEL-COR® and spiral wound ULTRA FLO®, Contech offers engineers and contractors flexibility in designing drainage solutions to best fit their projects’ exact requirements.
Lining inadequate or failing structures with corrugated metal material or plastic pipe uses little of the available area, thereby preserving the maximum amount of the original opening. Due to the hydraulic efficiency of Contech products, often a smaller structure provides the same hydraulic capacity as the original because of the low Manning “n” factors of A-2000™ and A2™ Liner PVC pipes and HEL-COR® and ULTRA FLO® CMP. Existing culverts and arches are generally lined with structures of the same shape, though slightly smaller in size. Rectangular openings can be lined with round, elliptical or pipe arch structures. Corrugated metal structures can fit almost any existing shape.
HEL-COR® is Contech’s helically corrugated metal pipe (CMP) used for drainage infrastructure applications including culverts, storm sewers, detention systems, ditch enclosures, and canals. It is manufactured with continuous locked seams and annular corrugated ends for secure joint connections.
HEL-COR® is commonly used for:
Standard HEL-COR® pipe is available in diameters ranging from 6 inches to 144 inches (12 feet), with various wall thicknesses and coatings available to meet structural and service life requirements. In some construction applications, HEL-COR® can be provided up to 171” diameters.
HEL-COR® is available in:
Pipe-arch shapes are often used where limited cover or reduced headroom is a concern.
HEL-COR® can be manufactured with several protective coatings, including:
These coating options allow engineers to select the appropriate durability and corrosion resistance for the site conditions.
When properly specified for the site environment, HEL-COR® pipe can provide a service life exceeding 100 years while meeting AASHTO and ASTM standards. Service life depends on environmental conditions, coating selection, and installation practices.
Yes. HEL-COR® is engineered to withstand severe loading conditions and burial depths, including fill heights exceeding 100 feet in properly designed applications.
HEL-COR® offers several advantages including:
Its lighter weight often reduces equipment requirements and installation time compared to reinforced concrete pipe.
HEL-COR® utilizes several coupling systems including:
These systems can provide soil-tight or more specialized joint performance depending on project needs. Both O-ring gaskets and flat neoprene gaskets are sometimes used to increase joint performance.
Yes. HEL-COR® is frequently used in underground stormwater detention and infiltration systems due to its strength, large diameter availability, and ability to accommodate fabricated fittings and manifolds.
Yes. HEL-COR® systems can include:
These fittings allow complex drainage systems to be designed efficiently.
Yes. HEL-COR® is commonly used in relining and rehabilitation applications for existing culverts and storm sewer systems. Its corrugated profile and range of shapes allow it to adapt to many existing structures while maximizing remaining hydraulic capacity.
HEL-COR® pipe is manufactured to meet applicable AASHTO and ASTM specifications for corrugated metal pipe products.
Yes. HEL-COR®’s lightweight steel construction simplifies handling and installation compared to heavier rigid pipe alternatives. Standard pipe lengths of 20’ to 50’ [JS1] can also reduce the number of joints required in the field.
HEL-COR® is designed to withstand demanding drainage environments. With the appropriate coating selection, it can resist corrosion, abrasion, and environmental exposure while maintaining long-term structural performance. HEL-COR® performs better than plastic and rigid structures where there is potential for embankment settlement.
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