Abstract: A form for construction of a catch basin including a water insert form that has a front insert wall, a rear insert wall, a pair of side insert walls and a concave bottom edge. The front insert wall and the rear insert wall each have knockouts along the bottom. The mortar insert form is positioned over an inlet pipe and an outlet pipe of a catch basin for bridges. Also, included are a pair of thumb screws that are capable of being positioned through one of the side walls of the mortar insert form. Included is a height mortar bridge form that has a front bridge wall, a rear bridge wall, and a pair of side bridge walls. The front bridge wall and the rear bridge wall each have a concave bottom. The front bridge wall and the rear bridge wall each have an inner wall that sloops downwardly from a top edge to form a cross rib. Lastly, the height mortar bridge form is locked within the mortar insert form a pair of thumb screws. This provides a form for mortar to be poured into.

Abstract: The Mortar Cap Form, according to the embodiment shown, comprises a plastic-preformed form in which to pour cement or mortar, to define a rectilinear footing for a catch basin. The form, in its basic configuration, presents channels, of right-angular juncture, defined by parallel walls of uniform width. in order to properly align the form with the top course of a catch basin, locating pins project downwardly from a bottom portion of the form, and from inner corners thereof, to pilotingly engage the catch basin course. The parallel walls are spaced apart by a series of traversing ribs; the ribs strengthen or reinforce the walls, and have voids formed therein to accommodate a flow of cement or mortar therethrough. In its supplemented configuration, the Mortar Cap Form includes a second form of parallel walls which also define channels for receiving cement or mortar, but the second form has tapered walls--to complement inclined road surfaces.