How to properly size a culvert for Drainage ditch..?

fried1765

Well-known member

Equipment
Kubota L48 TLB, Ford 1920 FEL, Ford 8N, SCAG Liberty Z, Gravely Pro.
Nov 14, 2019
7,843
5,066
113
Eastham, Ma
Well, maybe 10", going by o.d. But that's why 12" minimum. Even that requires periodic maintenance. OP would do well to include headwalls anyway, since he's scrimping on culvert length.
Yup.