Southeast Culvert provides pipes of diameter 54" to 144" in  a 5" x 1" or 3" x 1 " corrugation profile so that the pipe maintains structural integrity.  These pipes are usually manufactured in 14 gage or heavier to ensure durabilty of the c.m.p.  Heavier gages allow the pipe to maintain deeper heights of cover.  Gage and corrugation should be determined from height of cover charts published by ASTM, AASHTO, or local DOT's.  All of Southeast Culvert's corrugated steel pipe meets or exceeds the steel pipe specifications AASHTO M36 and ASTM A760.  

COATING SPECIFICATIONS:

Plain Galvanized Pipe (Zinc Coated)                        Aluminized Steel Type 2 (ALT2)

-AASHTO M218                                                            -AASHTO M274

-ASTM A929                                                                -ASTM A929

Galvanized Asphalt Coated                                      ALT2 Asphalt Coated

-ASTM A849                                                                -ASTM A849

-AASHTO M218                                                           -AASHTO M274

-AASHTO M190 with type A, B, C, or D                       -AASHTO M190 with  type A, B, C, or D   

Asphalt Coated Types

-Type A:  Fully Coated    

-Type B:  1/2 Coated & Paved

-Type C:  Coated & Paved

-Type D:  Fully Coated & Smooth Asphalt Lined