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ULTRA FLO® PipeStructural Strength with Superior Hydraulics

ULTRA FLO is one of the most hydraulically efficient storm sewer systems available because of its smooth interior surface, longer lengths, fewer joints and  prefabricated junctions that include elbows, manholes and catch basins.

Available in galvanized steel, Aluminized Steel Type 2, polymer coated and aluminum to meet a wide variety of environmental and service life requirements. For projects with limited headroom, ULTRA FLO is available in pipe-arch.

Millions of feet of ULTRA FLO have been installed in thousands of storm sewer projects nationwide, providing significant cost savings. Because steel ULTRA FLO weighs less than 10% of concrete pipe, handling and installation costs are greatly reduced. Aluminum ULTRA FLO has only 1/35 the weight of concrete pipe.

Lower labor costs also result from fast and easy joining. Contech Quick Stab® joints or coupling bands do not require special skills or tools. Twenty-foot standard lengths mean fewer joints and faster laying. And, longer lengths are available on special order. ULTRA FLO’s smaller outside diameter permits a reduction in trench widths and depths, providing time and cost savings for both excavation and backfilling operations. Shop-fabricated fittings save installation time in the field while providing hydraulically efficient junctions.
Benefits of ULTRA FLO Pipe:
  • Economical - Longer, smaller diameter and lighter weight than concrete means economy when installing
  • Proven Structural Strength - Shown to be equivalent to reinforced concrete pipe
  • Hydraulically Efficient - Manning’s “n” of 0.012
  • Multiple coatings available - Meets a wide variety of environmental and service life requirements

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CMP for Culverts, Canals and Ditch Enclosures

CMP CulvertsOur corrugated steel pipe is the most durable, economic, and widely chosen material for most culverts.

CMP Pipe for Storm Sewers

CMP for Storm SewerNo other type of drainage structure offers the range of structural strength that’s available with CMP - performs where rigid pipe fails. We offer coatings and linings to increase the life of installations up to 100 years as well as provide products with a Manning’s “n” equivalent to other smooth wall drainage products. We provide a full range of CMP for severe-to-normal conditions.

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

Pipe RehabilitationReline drainage structures with hydraulically efficient corrugated steel, aluminum or PVC pipe. ULTRA FLO and HEL-COR are CMP Pipes 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

Pipe RelineLining 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 Pipe for Wind Turbine Foundations and Vertical Shafts

CMP Vertical ShaftContech 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.

ULTRA FLO Pipe Case Studies
Paseo Del Norte/I-25 Interchange
Paseo Del Norte/I-25 InterchangeAlbuquerque, New Mexico
U.S. Post Office
U.S. Post OfficeHouston, Texas
TargetSan Antonio, Texas
State Route 207 Widening
State Route 207 WideningSt. Johns County, Florida
Sheppard Air Force Base
Sheppard Air Force BaseWichita Falls, Texas
Route 65 Reline
Route 65 RelineCarroll County, Missouri
Olive Green Road
Olive Green RoadDelaware County, Ohio
Jordan Landing
Jordan LandingWest Jordan, Utah
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