Pipe | Concrete Box Culvert | Miscellaneous Precast Structures |
Lowell Concrete Pipe ASTM-C76 | Sloped Boxes With Grating - All Sizes are available for 12"-60" Pipes (including elliptical sizes). These boxes have slopes ranging from 2:1 to 10:1 Outlet Protectors Electrical Handholes We are able to precast most all shapes and sizes of structures. |