Culverts are available in double-walled plastic and concrete. Plastic culverts come in 20' lengths, with a bell on one end and gasket on the other so no additional band is needed to connect multiple culverts. Though a band is available if needed. Concrete Culverts are available in 3.5' lengths.
Double-walled ADS plastic. Smooth inside, corrugated outside.
Available in: 10' or 20' lengths
A split coupler to join two pieces of culvert together.
C-14 Class III NRCP Tongue & Groove
Available in: 3.5' lengths