Culvert Construction Checklist

When building a house, it is important to go through a thorough process of checks and balances to ensure that you are following the proper procedures. That is part of this websites job, to help you along the way. Which is why we have put together an inventory of checklists to help you do just that. Here you will find the checklists for subdivisions with culverts, and culvert installation.

  1. Confirm city, county, and/or developer requirements with regard to culvert and in-turn construction, if any.
  2. As soon as possible after you start construction, determine the in-turn location, coordinate for culvert pipe installation, and in-turn construction.
    1. Know who installs culvert piping in your area (i.e. city, county, developer, or independent waterproofing contractor)
    2. Determine materials to be used (e.g., cement-stabilized and flatwork sand, metal or concrete culvert pipe).
    3. Determine liability for failed piping after installation (i.e. terms of guarantee – 1 year minimum, and integrity of concrete pipe sections).
  3. Coordinate for construction of headwalls (if necessary) and carstops at sides of in-turn at the time of in-turn fabrication.
    1. Headwalls must be of sufficient dimension to prevent excessive erosion above and surrounding the culvert pipe.
    2. Carstop dimensions at either side of the in-turn (i.e. directly above the culvert pipe) should be 4 to 6 inches in height and 36 to 50 inches in length. A 6-inch width provides sufficient driver warning of proximity to culvert edge, while leaving sufficient in-turn width for maneuvering.
  4. Set culvert piping using cement-stabilized sand embedment to prevent movement.
  5. Cover culvert piping with bank sand to reinforce and support the driveway in-turn to be constructed above.
  6. Set form lumber for in-turn placement (Obtain inspection approval, if required)
  7. Place in-turns with carstops, and headwalls (if required)