![The Design of Box Culvert 1 The Design of Box Culvert](https://excel.civilmdc.com/wp-content/uploads/2021/10/The-Design-of-Box-Culvert.png)
Standard designs for precast concrete box culverts are available with spans varying from 6 to 16 feet and rises varying from 4 to 14 feet. Standard precast concrete box culverts are typically fabricated in 6 foot sections; however larger boxes are fabricated in 4 foot sections to reduce section weight.
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