Culvert Pipe Installation

    1. Verify size, type, and length of pipe. Ensure proper class or wall thickness.
    2. Check pipe for approval stamp and/or certification and inspect for any subsequent damage and defects. Delay the installation of defective sections until repaired or replaced.
    3. Review plans, control stakes, and adjacent terrain for proper drainage.
    4. Check for potential conflicts with existing and proposed underground utilities.
    5. Check trench for proper width and slope protection as per OSHA regulations.
    6. Ensure that Geotextile is placed as required.
    7. Check bed for proper bedding material, compaction, and grade.
    8. Ensure tongue end of concrete pipe is in direction of flow and lap in metal pipe is positioned so that flow is overlap.
    9. Verify that concrete pipe joints are snug, properly sealed, and tied when required. Verify that all lift holes are plugged and sealed.  Verify that mortar is 3 parts mortar sand and 1-part approved mortar cementing material.
    10. Determine pay length while installing pipe.
    11. Verify the backfill material meets contract specifications; sample and test as necessary.
    12. Require that backfill be placed in lifts of 8 inches or less and meets moisture and compaction compliance before placing the next lift.
    13. When complete, verify that the pipe is in proper alignment and undamaged.
    14. Maintain daily records that include hours worked, weather, trenching, placement, and backfilling information; item, pay length, location, heat numbers, crew, equipment, and other information having relevance to culverts.

References: Specifications 2451, 2501, Grading and Base Manual (Section .400), Contract Administration Manual, Schedule for Material Control, OSHA regulations