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Several corrugated metal pipes nested inside each other.

CMP Shapes and Uses

Contech offers a variety of coatings for CMP to ensure that your project meets the desired service life. From coatings to gage, Contech will work with you to identify the ideal solution for your project.
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Shapes and Uses of CMP

Corrugated steel pipe is available in a wide range of sizes (up to 96 inches and larger), shapes, gages and corrugation profiles to help designers meet both hydraulic and structural conditions at each site. In addition, corrugated steel pipe is available in a range of coatings, including galvanized, aluminized steel Type 2, polymeric and others. Depending on the respective coating selected for the applicable environmental conditions, a service of 100+ years can be designed.

SHAPES AND USES OF CORRUGATED METAL STRUCTURES
Shape   Range of Sizes Common Uses
Round 6” to 51’ Culverts, subdrains, sewers, service tunnels, etc. For medium and high fill (or trenches).
Vertical ellipse
5% nominal		 4’-8” x 5’-2”
to
25’ x 27’-8”		 Culverts, storm sewers, service tunnels, recovery tunnels and stream enclosures. Works well in higher cover applications.
Pipe Arch 17” x 13”
to
20’-7” x 13’-2”		 Limited headroom. Has hydraulic advantages at low flow levels. Culverts, storm sewer, underpass and stream enclosures.
Underpass* 5’-8” x 5’-9”
to
20’-4” x 17’-9”		 For pedestrians, livestock or vehicles. **
Arch 6’ x 1’-10”
to
54’-4" x 27’-2”		 For low clearance large waterway opening, and aesthetics. **
Horizontal Ellipse 7’-4” x 5’-6”
to
14’-11” x 11’-2”		 Culverts, grade separations, storm sewers, tunnels. **
Pear 23’-8” x 25’-5”
to
29'-11" x 31'-3"		 Grade separations, culverts, storm sewer, tunnels. **
High Profile
Arch		 20’-1” x 9’-1”
to
35’-4” x 20’-0”		 Culverts, grade separations, storm sewers and tunnels. Ammunition magazines, earth covered storage. **
Low Profile
Arch		 19’-5” x 6’-9”
to
45’-0” x 18’-8”		 Low-wide waterway enclosures, culverts, storm sewers. **
Box Culvert 8’-9” x 2’-6”
to
40’9” x 15’2”		 Low-wide waterway enclosures, culverts, storm sewers. **
Notes:
* For equal area or clearance, the round shape is generally more economical and easier to assemble.
** Visit our Structural Plate pages for more information.

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