Manhole Channeling Services Manhole Channeling, Finishing and Repairing: Twenty years of experience! No more expensive mistakes! No Concrete down your pipelines! 4" x 48" Manholes to 60" x 120" Manholes Channeled Beaver slides, Oregon Drops, Drop Pipes, Diversion Manholes, Tie-Ins No more roto-hammering and repairing! Cost Effective, Efficient, Superior Quality! Call us if you are tired of Channeling your own manholes or don't know how! Call us for a quote!