culvert is de-posited around the core. There are no end plates with this form and its great advantage lies inthe fact that it is so easily adjusted to any size. The form is substan-tially and durably built; all the operating parts are of malleable iron andevery part that comes in contact with the… … S M A L I, C 0 N C R E T E AND CULVERTS The Merrillat Co. also manufacture an adjustable arch form forarches ranging from 6 to 12 feet in span and in units of 4 feet in lengthso that bridges may be built of any length by using additional sections.This form is also adjustable at any angle across the…
Bridges · Concrete · Culverts
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.
