Box culvert

A box culvert assembly comprising:

• a first box culvert having a first end, a second end, and an opening extending between the first end and the second end, the first end comprising a first ledge located at least partially above the opening and a recessed face at least partially defining a recessed area at least partially surrounding the opening, the recessed area at least partially formed by the first ledge, the first box culvert comprising a back face spaced further away from the second end than is the recessed face, the first box culvert further comprising an angled surface connecting the back face to the recessed face, the angled surface disposed along an edge of the opening that is transverse to the first ledge, the angled surface extending away from a central axis of the opening in a direction from the recessed face to the back face;
• and
• a second box culvert having a first end, a second end, and an opening extending between the first end and the second end, the first end of the second box culvert comprising a second ledge located at least partially above the opening and a protruding attachment surface at least partially surrounding the opening;
• wherein when the first box culvert and the second box culvert are connected, a bottom surface of the second ledge contacts a top surface of the first ledge and the protruding attachment surface at least partially enters the recessed area;
• wherein when the first box culvert and the second box culvert are connected the opening of the first box culvert and the opening of the second box culvert are connected;
• and
• wherein the second ledge extends further away from the first end of the second box culvert than the protruding attachment surface extends from the first end of the second box culvert.