(a) All excavation, foundations and backfill shall be carried out in compliance with the general specifications for excavations, Chapter 1359.
(b) Forms for use in the construction of concrete sidewall shall be either of wood or metal. Metal forms shall be of such thickness that the forms will remain true to shape.
(c) The concrete shall be placed in the forms immediately after mixing, in layers not exceeding twelve inches, sufficiently spaded and rodded to insure a good finish, free from honeycomb and other defects.
(d) Concrete block masonry shall be constructed in horizontal courses with vertical joints broken.
(e) Brick masonry shall be constructed in horizontal courses with a header course every sixth course.
(f) Concrete block and brick sidewalls shall be laid with full mortar joints. Joints on interior walls shall be struck smooth.
(g) Concrete block and brick manholes and catch basins from the base to the bottom of the cone shall be plastered with a mortar coat one-half inch thick, with a mortar of the same consistency and of the same ingredients specified for use in sidewalls. Manholes shall be plastered on the outside, catch basins on the inside.
(h) Precast concrete rings shall be laid with full mortar joints, the mortar to be as above specified.
(i) An additional inlet pipe, placed through the manhole or catch basin sidewalls, shall extend through the walls a sufficient distance to allow connections on the outside. Such pipes shall be struck smooth on the inside in line with the inside wall of the manhole. The manhole masonry shall be carefully constructed around all pipes, so as to prevent leakage along the outer surfaces.
(j) Frame castings shall be set in full mortar beds on the top of the masonry.
(Ord. 352. Passed 10-22-62.)