Boxes

Inland produces a range of precast box culverts that can be used for a variety of horizontal and vertical applications. Primarily intended for use as a horizontal conduit where headroom is limited, precast boxes can significantly cut the costs by reducing or eliminating formwork, dewatering, traffic control and curing when compared to cast-in-place concrete.

Precast boxes can be designed for various depths and loading conditions including truck, railway and airplane loads. Similar to concrete pipe, precast box culverts are available in unique configurations including miter bends, wyes, cast-in baffles, and manhole access openings.

Precast Box Drawings

Detailed dimensions are provided on drawings for all our Box Culvert products to assist with your design projects.
Please contact us if you require additional information.

Standard:
Standard Vertical Box Manhole

Maximum Pipe Size For Box Sections (1800mm x 900mm To 2400mm x 1800mm)

Maximum Pipe Size for Box Sections (2400mm x 2400mm To 3600mm x 3600mm)

To see the drawings for each size, click the following links:

Box Bevel Drawings

Detailed dimensions are provided on drawings for all our box culvert products to assist with your design projects.
Please contact us if you require additional information.

Standard bell and spigot box bevels are cut from a 2.5m box length.

Click here to view the box culvert beveled end drawing.
Click here to view the maximum pipe size for box sections 1800mm x 900mm to 2400mm x 1500mm.
Click here to view the maximum pipe size for box sections 2400mm x 2400mm to 3000mm x 2400mm.