Manhole Braces are designed to shore square, rectangular or linear trench line excavations. They provide 2 or 4-way hydraulic support against the trench walls to create an obstruction- free area which permits adequate working room for the installation of manholes, vaults, pipe joints or the operation of boring equipment. They can be used with several different types of sheeting, as described in the manufacturer’s tabulated data. Each of the four sides of a manhole shore can be independently pressurized, and also can pivot laterally, to provide proper shoring to the excavation, even if it is somewhat irregular in shape. Manhole Shores are easily transported as four individual cylinder and tube sections, and quickly assemble at the job site.