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CORLIX® Aluminum Culvert and Drainage Pipe

CORLIX corrugated aluminum culvert and drainage pipe is the ideal pipe for municipal culverts, storm sewers, underground stormwater detention systems or any standard drainage project that must withstand alkali soils and erosive environments.

The Ideal Pipe for Alkali Soils and Erosive Environments

CORLIX® aluminum culvert and drainage pipe provides a predictable service life of more than 75 years. It is the ideal pipe for municipal culverts, storm sewers, underground storm water detention systems or any standard drainage project that must withstand alkali soils and erosive environments. In addition to its long design life, CORLIX is an economical alternative to reinforced concrete pipe.

CORLIX weighs only 1/35 as much as reinforced concrete. Lighter weight means easier installation. Trench width (and depth) are reduced due to the smaller outside diameter, resulting in time and cost savings for both excavation and backfill.

Single lengths up to 40 feet ensure more accurate pipe alignment at time of placement and through the life of the system. Longer lengths save installation time with fewer joints.

Easy, fast pipe cutting on the job is simple with standard tools. Since there are no riveted joints, CORLIX can be cut at any point. Cuts and welds need no protective treatment. Wide availability of fittings saves installation time in the field. Fabricated elbows, manholes and catch basins minimize hydraulic losses at junction structures.

CORLIX Aluminum Pipe Features and Benefits


Fabricated from special aluminum clad culvert material

Service life of more than 75 years

Corrosion resistant

Can be used in alkali soils, salt water, and erosive environments

Weighs 1/35 as much as reinforced concrete

Easier, faster installation

Longer lengths than reinforced concrete pipe

Fewer joints, faster installation, and more accurate pipe alignment

Smaller outside diameter than reinforced concrete pipe

Less excavation, faster installation, reduced cost

CORLIX Aluminum Pipe Properties

  • Wall thicknesses of 18, 16, 14, 12, 10 and 8 gage
  • Pipe diameter ranges from 6” to 120”

CORLIX Aluminum Pipe Shapes

  • Full Round – recommended for most applications
  • Pipe-Arch – low, wide pipe-arch design distributes the area horizontally to provide adequate capacity without raising the grade
  • Perforated pipe for underdrainage or recharge systems is available

CORLIX Aluminum Pipe Accessories

CORLIX Aluminum Pipe Applications

  • Culverts, canals and ditch enclosures
  • Storm sewers
  • Stormwater detention and infiltration

Technical information for this product is centrally located in the technical guides section.

View Technical Information
CMP and PVC Pipe for Rehabilitating Storm, Sanitary Sewers and Small Culverts

Reline drainage structures with hydraulically efficient corrugated steel, aluminum or PVC pipe. ULTRA FLO® and HEL-COR® are available in standard diameters through 120” and 144" respectively. Special diameters are also available in both products. The PVC pipe systems, A-2000™ and A2™ Liner Pipe — used for both drainage structures and sanitary sewers—are available through 36” diameter.

CMP and PVC Pipe for Pipe Reline

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 pipes. Existing pipes 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.

CMP Stormwater Detention Systems

CMP stormwater detention systems store stormwater runoff exceeding a site’s allowable discharge rate and release it slowly over time. Installed below grade, stormwater detention systems maximize land usage and help meet water quantity requirements.

ULTRA FLO for Storm Sewers and Drainage Pipe

No other storm sewers or drainage pipe structure offers the range of structural strength that’s available with ULTRA FLO - which continues to perform where rigid pipe fails. We offer coatings and linings that will provide a minimum of 75-year service life for most soil/water conditions. ULTRA FLO provides a Manning’s “n” = 0.012, equal to concrete pipe and other smooth wall drainage products. There are custom fittings and coatings to meet your project needs.

CMP for Culverts, Canals and Ditch Enclosures

Our corrugated steel pipe is the most durable, economic, and widely chosen material for most drainage culverts applications.

The Contech Advantage

Agency/Regulatory Guidance

Our team is ready to provide you with expert advice and assistance on local regulatory requirements, resulting in faster approvals.

Solution Development

Our engineers can review your requirements, weigh all options, and recommend the optimal solution to integrate with your site designs.

Technical Expertise

Our engineers can assist by providing product specific engineering calculations such as hydraulics, buoyancy, foundation reactions, and unit sizing.

Cost Estimates

We can quickly provide engineer’s cost
estimates to assist with your solution
selection process.

Site Specific Drawings

Our engineers can provide site-specific drawings for proposals, project meetings, and submittals, helping you be more efficient with your time.

On-site Assistance

Contractors know time is money, so we provide preconstruction meetings, delivery coordination, and on-site installation support to ensure a timely, smooth installation.