d of the stave as shown. The form is then rolled around a cir-cular head size of the proposed culvert and wire bands are tied tightlyaround it on the outside. Wedges are then driven as shown in Figure27 to hold the staves firmly in position. After the culvert has been builtthe wedges are removed,… … I NIVERSAL POH I I \ \ l» ■ I \i h \ I CO 1
Bridges · Concrete · Culverts
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