| Includes | concrete cast in forms, either on or off site, before final placement. forming, reinforcing, inserts, and accessories. |
| May Include | precast concrete tunnel lining. precast concrete shaft lining. precast concrete retaining walls. |
| See | 31 35 23.16 for slope protection with precast concrete slope paving. 31 62 13 for precast concrete driven piles. |
| See Also | 31 74 16 for precast concrete tunnel lining. 31 75 16 for precast concrete shaft lining. 32 32 16 for precast concrete retaining walls. |