- -·v- --- -·--·· l\lalllling's n Values 4.5.14 For only ptpe allowed JS except for culv-erts. For culvertequal to or grealfr than inches dm '3V if in diameter. co ted metll p!pe allowed it b!lU!IJioons \nth a IS IS concrete-poured mverl. Table 4-3 recolllll.lellded n,t!hle!;_ Tab !> 4-3 Manning's IIralues Wall& Joint Descmtion Pipe Concll':te 0.011..() 013 0.014-0.016 0.016..() 017 Concrete Box Good JOmls. smooth fmished rough, P""'""'mt< llllfinished w31ls Full Circular Flow 34 Com1gated ::Vfetll 2 1!2-lllCb com and Pipes 6 1-lllCh co ;aoons Boxes, 5 by l-inch comJgallOtl!i ,'i.!mular 3 by l-inch co ;allOns 0.0' 4-0. 2-inch strnc llfalplate 6 012 Helical Corrugations. For infcinmtlon coocern11g furtlllr :1\Jte: l\l:lilllllllg
- -·v- --- -·--·· 4.5.14 l\lalllling's n Values For only ptpe JS allowed except for dm '3V culv-erts. For culvertequal to or grealfr than inches in diameter. co ted metll p!pe IS allowed if it IS b!lU!IJioons \nth a concrete-poured mverl. Table 4-3 recolllll.lellded n,t!hle!;_ Tab !> 4-3 Manning's IIralues Wall& Joint Descmtion Concll':te Pipe 0.011..() 013 0.014-0.016 0.016..() 017 Concrete Box Good JOmls. smooth fmished P""'""'mt< rough, llllfinished w31ls Com1gated ::Vfetll Pipes and Boxes, ,'i.!mular Helical Corrugations. Full Circular Flow 2 1!2-lllCb com 6 1-lllCh co ;aoons 5 by l-inch comJgallOtl!i 3 by l-inch co ;allOns 6 2-inch strnc llfalplate 34 0.0' 4-0. 012 :1\Jte: For furtlllr infcinmtlon coocern11g l\l:lilllllllg
AED%20Design%20Requirements%20-%20Culvert%20Causeways%20Design_modified_July_09.docx