Chicago : Engineering and Contracting Pub. Co. · leaf 300
thetrunk sewer (on a curve) with a fall of 17per cent for about 40 ft. Of course, no reduc-tion in size is made for this length, as theflow will hardly attain the normal velocity fora 17 per cent grade in so short a distance. Probably the most difficult problem has beenfound in the establishment of… … sewers is made by curves. 2. No fixed relation between size of sewerand curve radius is used, but the radius ismade as large as possible, varying from 30 to80 ft. when in street intersections and fromthis up to a two-degree curve where the angleis small. 3. At intersections, the smaller sewers…
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
