Catch basin system

Abstract

Apparatus and associated methods relate to a formed stormwater catch basin having a top portion and a base portion defining fillable cavities configured to receive a cementitious material through one or more fill openings after installation to provide internal reinforcement. In some embodiments, the top portion and the base portion are hollow and formed from a lightweight structural forming material. In various embodiments, the fill openings may be sealed by caps, and each cap may include a post extending into the cementitious material as the cementitious material cures. In some implementations, the base portion defines an outlet opening configured to fluidly couple the catch basin to a storm drainage conduit. This may, for example, advantageously provides a low weight option for installing a catch basin system.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Application Ser. No. 63 / 777,910, titled “Catch Basin System,” filed by Michael Pascal on Mar. 26, 2025.

[0002] This application incorporates the entire contents of the foregoing application(s) herein by reference.TECHNICAL FIELD

[0003] Various embodiments relate generally to storm drainage systems.BACKGROUND

[0004] Storm drainage infrastructure may be used in a variety of settings to collect, direct, and manage water runoff. For example, storm drainage systems may be implemented in municipal, commercial, industrial, residential, scientific, and medical environments. In some implementations, storm drainage systems may include catch basins, conduits, grates, and related structures configured to receive water and direct the water to a drainage network.

[0005] In various applications, catch basin structures may be installed in association with roadways, curbside surfaces, paved areas, and other ground surfaces where water collection and drainage may be desired. For example, a catch basin structure may be configured to interface with a grate and to fluidly couple with a storm drainage conduit.SUMMARY

[0006] Apparatus and associated methods relate to a formed stormwater catch basin having a top portion and a base portion defining fillable cavities configured to receive a cementitious material through one or more fill openings after installation to provide internal reinforcement. In some embodiments, the top portion and the base portion are hollow and formed from a lightweight structural forming material. In various embodiments, the fill openings may be sealed by caps, and each cap may include a post extending into the cementitious material as the cementitious material cures. In some implementations, the base portion defines an outlet opening configured to fluidly couple the catch basin to a storm drainage conduit. This may, for example, advantageously provide a low weight option for installing a catch basin system.

[0007] Various embodiments may achieve one or more advantages. For example, instead of transporting a pre-cast catch basin system via a heavy-duty truck and / or trailer and carefully unloading it into an excavated area, the top portion and the base portion may advantageously be lightweight, allowing for simple transportation and installation. This may, for example, advantageously decrease the cost of transporting a pre-cast catch basin system for installation. The top portion and the base portion may, for example, advantageously receive cement from a cement truck at the site of installation of the catch basin system. In some embodiments, the base portion may advantageously receive the cement first and then the top portion is coupled to the base portion and filled with cement. This may, for example, advantageously allow the coupling of the base portion and the top portion without having to move either after receiving cement. This advantageously keeps the installation of the catch basin system at a light weight while ensuring that the base portion and the top portion may be properly coupled.

[0008] In some embodiments, the fill openings may be advantageously sized to receive a shoot from a cement truck. The sizing of the fill openings may, for example, advantageously enable quick and efficient filling of the base portion and the top portion. The fill openings may, for example, advantageously be waterproof sealed with the locking caps. For example, the locking caps may be beneficial in flood prone areas where water could damage the concrete in the top portion and the base portion. The fill openings may, for example, advantageously be quickly sealed with the flat caps. For example, the flat caps may be advantageous in dry areas where there is little risk of flooding that could damage the concrete in the top portion and the base portion. The flat caps may, for example, be advantageous where quick installation of the catch basin system is beneficial.

[0009] In some embodiments, the outlet opening may advantageously fluidly couple the catch basin system to the storm drain system. This fluid coupling may, for example, advantageously prevent flooding on the street. This may, for example, beneficially prevent flood damage and / or car accidents from occurring.

[0010] The details of various embodiments are set forth in the accompanying drawings and the description below. Other features and advantages will be apparent from the description and drawings, and from the claims.BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 depicts an exemplary catch basin system employed in an illustrative use-case scenario.

[0012] FIG. 2 depicts an exemplary cap for a fill opening.

[0013] FIG. 3 depicts an exemplary cap for a fill opening.

[0014] FIG. 4 depicts a side view of an exemplary catch basin system.

[0015] FIG. 5 depicts a top view of a portion of an exemplary catch basin system.

[0016] FIG. 6 depicts an exemplary outlet opening of a catch basin system.

[0017] FIG. 7 is a flowchart illustrating an exemplary method of installing a catch basin system.

[0018] Like reference symbols in the various drawings indicate like elements.DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

[0019] To aid understanding, this document is organized as follows. First, to help introduce discussion of various embodiments, a catch basin system is introduced with reference to FIG. 1. Second, that introduction leads into a description with reference to FIGS. 2 and 3 of some exemplary embodiments of caps for fill openings. Third, with reference to FIGS. 4-6, the discussion turns to exemplary embodiments that illustrate exemplary portions of a catch basin system. Fourth, and with reference to FIG. 7, this document describes exemplary methods useful for installing a catch basin system.

[0020] FIG. 1 depicts an exemplary catch basin system employed in an illustrative use-case scenario. A catch basin system 100 includes a top portion 105 and a base portion 110. In some embodiments, the top portion and the base portion are integrally formed and together define a continuous interior chamber. In some embodiments, when the top portion is coupled to the base portion, the top portion and base portion cooperate to define a continuous interior chamber. For example, the formed stormwater catch basin may be modular. In some embodiments, the top portion 105 and the base portion 110 are formed from a lightweight structural forming material.

[0021] In some embodiments, the top portion 105 and the base portion 110 each define one or more hollow wall regions that form respective fillable sidewall cavities. For example, the fillable sidewall cavities may extend along one or more sidewall portions of the top portion 105 and / or the base portion 110 and may be accessible through one or more fill openings 120, which may also be referred to herein as fill openings. In some examples, a curable structural material, such as cement or another cementitious material, may be introduced through the fill openings 120 into the fillable sidewall cavities so that, upon curing, the curable structural material increases the structural integrity of the catch basin system 100. In this manner, the previously described hollow construction of the top portion 105 and the base portion 110 may provide a lightweight structure for transport and installation while also permitting in-place filling to form a hardened structural catch basin.

[0022] In some embodiments, the top portion 105 and the base portion 110 cooperate to define a continuous interior chamber extending through the catch basin system 100. For example, when the top portion 105 is coupled to the base portion 110, an internal volume of the top portion 105 may communicate with an internal volume of the base portion 110 so that water, debris, maintenance access, and / or other internal features may be received within a shared interior space of the catch basin system 100. In some examples, the continuous interior chamber may be defined by a unitary, integrally formed structure, while in other examples the continuous interior chamber may be established when separate modular portions are aligned and assembled together. In this respect, the continuous interior chamber may correspond to the interior region of the catch basin system 100 shown, for example, in FIG. 1 and the side view of FIG. 4.

[0023] The top portion 105, in some embodiments, includes a curb 115. For example, the top portion 105 further defines a curb structure configured to interface with a roadway or curbside surface. The top portion 105 and the base portion 110 may, for example, be hollow. The top portion 105 and the base portion 110 may, for example, be made of high-density polyethylene. The top portion 105 and the base portion 110 define fill openings 120. The fill openings 120 may, for example, be configured to receive a curable structural material. A curable structural material, for example, includes any flowable material that cures to a hardened structural mass, such as cement or other cementitious materials. For example, the curable structural material may be cement. In some examples, the top portion 105 and the base portion 110 may be configured to receive cement through the fill openings 120. The receiving of cement may, for example, increase the structural integrity of the top portion 105 and the base portion 110. For example, when the cement dries in the top portion 105 and the base portion 110, the cement becomes concrete. In some examples, this advantageously increases the structural integrity of the top portion 105 and the base portion 110.

[0024] In various embodiments, the top portion and / or base portion define one or more fillable sidewall cavities (e.g., hollow wall regions) accessible via one or more fill openings. The fillable sidewall cavities are configured to receive a curable structural material introduced through the fill openings.

[0025] In some implementations, the base portion 110 defines an outlet opening 125. The base portion may define an outlet opening configured to fluidly couple the formed stormwater catch basin to a stormwater drainage conduit, such as a pipe. The outlet opening 125 may, for example, be configured to receive a pipe. For example, the outlet opening 125 may fluidly couple the base portion 110 to the pipe. In some embodiments, the base portion 110 may be coupled to a stormwater drainage system via the outlet opening 125. The base portion 110 includes a ladder 130. The ladder 130 may, for example, provide an entrance and an exit to the base portion 110. For example, the ladder 130 may advantageously allow a person to enter and leave the catch basin system 100 to perform maintenance. In some embodiments, the ladder 130 may be a steel ladder installed after the cement poured in the top portion 105 and the base portion 110 has dried into concrete.

[0026] FIG. 2 depicts an exemplary cap for a fill opening. The fill openings 120 may, for example, be capped. For example, the fill openings 120 may be capped by a locking cap 200. The locking cap 200 includes an upper part 205. The upper part 205 may, for example, be configured to cover the fill opening 120. In some embodiments, the locking cap 200 includes a post 210. The upper part 205 includes a post 210 and locking tabs 215. The post 210 and the locking tabs 215 may, for example, extend in the same direction from the upper part 205. The post 210 may, for example, couple with the curable structural material in the fill opening 120. For example, the post 210 may couple with the cement as it dries. When the cement dries and becomes concrete, the post 210 may, for example, be coupled with the concrete. In some embodiments, the post 210 may couple with the concrete after the cement has dried and become concrete. The locking tabs 215 may, for example, couple with the edges of the fill opening 120. For example, the locking tabs 215 may grip the edges of the fill opening 120. The grip of the locking tabs 215 may, for example, advantageously provide a waterproof seal. This waterproof seal may, for example, be beneficial in flood prone areas where water could damage the concrete in the top portion 105 and the base portion 110.

[0027] In some implementations, the post 210 includes barbs 220. The barbs 220 may, for example, increase the strength of the coupling between the locking cap 200 and the concrete. The barbs 220 may, for example, advantageously increase the surface area of the coupling. This may, for example, advantageously strengthen the seal of the locking cap 200 on the fill opening 120.

[0028] FIG. 3 depicts an exemplary cap for a fill opening. The fill openings 120 may, for example, be capped by a flat cap 300. The flat cap 300 includes a main part 305 with a post 210. The post 210 extends from the main part 305. The main part 305 may, for example, be configured to cover the fill opening 120. The post 210 may, for example, be coupled with the cement as it dries. When the cement dries and becomes concrete, the post 210 may, for example, be coupled with the concrete. In some embodiments, the post 210 may couple with the concrete after the cement has dried and become concrete. The coupling of the post 210 with the concrete in the fill opening 120 may, for example, cover the fill opening 120 with the main part 305. Covering the fill opening 120 with the main part 305 may, for example, advantageously seal the fill opening 120. The sealing of the fill opening may be advantageous, because, in some examples, it is beneficial to quickly cap the fill openings 120. This may, for example, be advantageous in dry areas where there is little risk of flooding that could damage the concrete in the top portion 105 and the base portion 110.

[0029] In some implementations, the post 210 includes barbs 220. The barbs 220 may, for example, increase the strength of the coupling between the flat cap 300 and the concrete. The barbs 220 may, for example, advantageously increase the surface area of the coupling. This may, for example, advantageously strengthen the seal of the flat cap 300 on the fill opening 120.

[0030] FIG. 4 depicts a side view of an exemplary catch basin system. In this side view, portions of the base portion 110 are transparent in order to depict certain aspects of the catch basin system. The base portion 110 include reinforcement supports 405. In some embodiments, the inner portions of the walls of the base portion 110 may include the reinforcement supports 405. The reinforcement supports 405 are configured to accommodate rebar 410. The reinforcement supports 405 may, for example, be glide-in supports configured to accommodate the rebar 410. For example, the glide-in supports may advantageously enable efficient installation of the rebar 410. In some embodiments, the rebar 410 may improve the structural integrity of the catch basin system 100. For example, the rebar 410 may advantageously improve the structural strength of the concrete.

[0031] In some embodiments, the catch basin includes reinforcement supports configured to receive reinforcing bar (e.g., glide-in supports). In some embodiments, the catch basin includes one or more internal support members (e.g., molded support rods) configured to provide structural integrity during introduction of the curable structural material.

[0032] In some embodiments, the catch basin system 100 may further include one or more internal support members disposed within the top portion 105 and / or the base portion 110. For example, an internal support member may include a molded support rod, such as a plastic center support rod molded into the material of the catch basin system 100, configured to provide structural support while a curable structural material is introduced into the fillable sidewall cavities. In some examples, the one or more internal support members may help maintain spacing, resist deformation, or otherwise support one or more portions of the catch basin system 100 during filling and curing of the curable structural material. Thus, the internal support members may be distinct from reinforcement supports 405 configured to receive rebar 410, while still contributing to structural integrity during installation of the catch basin system 100.

[0033] FIG. 5 depicts a top view of a portion of an exemplary catch basin system. The base portion 110 includes the fill openings 120 and the reinforcement supports 405. The fill opening 120 may, for example, be configured to receive a curable structural material. The reinforcement supports 405 may, for example, be configured to receive a tension device. For example, the reinforcement supports 405 may be configured to receive the rebar 410.

[0034] FIG. 6 depicts an exemplary outlet opening of a catch basin system. The outlet opening 125 may, for example, be configured to couple the catch basin system 100 with the storm drainage system. For example, the outlet opening 125 may fluidly couple the catch basin system 100 with the storm drainage system via a pipe. The pipe may, for example, be inserted in a direction towards an outer wall 605 of the base portion 110. In some examples, rain drains from a street to the catch basin system 100. The rain may, for example, flow through the catch basin system 100 and exit via the pipe coupled to the outlet opening 125 to the storm drainage system. This may, for example, advantageously prevent flooding on the street. This may, for example, beneficially prevent flood damage and / or car accidents from occurring.

[0035] In some embodiments, the outlet opening 125 may have a slight taper of a ½ inch inward to allow for a compression fitting with the pipe. This may, for example, advantageously seal the coupling of the outlet opening 125 and the pipe, preventing leaks from the catch basin system 100.

[0036] FIG. 7 is a flowchart illustrating an exemplary method of installing a catch basin system. The method 700 may begin with providing a formed stormwater catch basin having fillable sidewall cavities, one or more fill openings, and one or more caps corresponding to the one or more fill openings in step 705. In step 710, the formed stormwater catch basin may be positioned in an excavated area. In step 715, a curable structural material may be introduced into the fillable sidewall cavities through the one or more fill openings. In step 720, at least one of the fill openings may be covered with a cap having a post extending into the curable structural material.

[0037] In some embodiments, installation of the catch basin system may include positioning a base portion within an excavated area, introducing a curable structural material into one or more fillable sidewall cavities of the base portion through one or more fill openings, and subsequently positioning a top portion on the base portion. In some examples, after the top portion is positioned on the base portion, curable structural material may be introduced into one or more fillable sidewall cavities of the top portion through one or more fill openings. In various implementations, one or more of the fill openings may be covered using a cap, such as a flat cap or a locking cap. For example, a selected cap may include a post extending into the curable structural material and may be coupled to the corresponding fill opening after introduction of the curable structural material.

[0038] Although various embodiments have been described with reference to the figures, other embodiments are possible.

[0039] Although an exemplary system has been described with reference to FIGS. 1-7, other implementations may be deployed in other industrial, scientific, medical, commercial, and / or residential applications.

[0040] In various implementations, the catch basin system includes a base portion coupled to a top portion forming a structure configured to receive rainwater, the base portion and the top portion being hollow and configured to receive a curable structural material through fill openings defined on the base portion and the top portion.

[0041] In some embodiments, the catch basin system includes multiple outlet openings. The multiple outlet openings may, for example, advantageously provide increased drainage capacity for the catch basin system 100. This may, for example, advantageously drain the rain from the street level quickly. In some implementations, the rate of drainage may be twice as fast with two outlet openings, three times as fast with three outlet openings, four times as fast with four outlet openings, etc. The outlet openings may, for example, have a slight taper of a ½ inch inward. This may, for example, advantageously allow for a compression fitting with a pipe.

[0042] In some embodiments, the catch basin system may be implemented in circumstances pertaining to concrete structure drainage systems. Many precast based basins may, for example, be replaced with the catch basin system to be filled with concrete after installation.

[0043] In some implementations, the catch basin system may be molded to size using hole specification according to a project's needs using high density polyethylene. The high-density polyethylene catch basin system may have a hollow core with 1.5-inch plastic center support rods molded into the plastic for structural integrity while filling the hollow core with concrete through the fill openings.

[0044] In various embodiments, there may be one fill opening. In other embodiments, there will be multiple fill openings. The various fill openings may, for example, be shaped to receive a shoot from a cement truck. For example, the fill openings may be of a rectangular shape 12 inches long and 6 inches wide. The walls of the catch basin system may, for example, be ¼ inch thick.

[0045] In various implementations, the inner portions of the catch basin system may have glide-in supports to accommodate rebar. The rebar may, for example, be cut to length and placed in the glide-in supports to meet state standards of structure and concrete strength.

[0046] In some embodiments, the catch basin system may be formed as one integral piece. For example, the catch basin system may be used as one piece when there is no curbing and can be designed using the style of having a top cap with a curb backing.

[0047] In various embodiments, the catch basin system may be formed from two pieces. The top portion and base portion may include an alignment mechanism, such as recessed features configured to receive corresponding protrusions, to align and retain the portions during assembly. The base portion may, for example, have recessed punches on the top of its walls. The recessed punches of the base portion may, for example, line up with protrusions on the base of the top portion. The recessed punches and the protrusions may, for example, couple with each other. For example, the coupling of the recessed punches and the protrusions may hold the base portion and the top portion in place during installation.

[0048] In some implementations, the catch basin system may accommodate all grate sizes. The catch basin system may include a steel inlay. The steel inlay may assist the structural integrity that a grate will be placed into.

[0049] In various embodiments, a sealant may be used to seal the outlet opening to the pipe.

[0050] In some implementations, the thickness of the wall of the base portion may enable different angles for the coupling of the pipe with the outlet opening.

[0051] In some embodiments, the catch basin system may include a deep base portion. A ladder may, for example, be molded into the plastic cast of the base portion to provide an entrance and exit for the catch basin system. The ladder may, for example, be filled with concrete to provide it structural integrity.

[0052] In some implementations, the rebar may be used only if regulatory standards require it. The rebar may be laid horizontally during filling in sections. The rebars may, for example, be inserted into rebar snap-inns. For example, the rebar snap-inns may flexibly glide inf front to flexible rest points. The base portion may, for example, be used without the top portion. For example, if only using the base portion, an adhesive may be used to temporarily secure the “M” frame until blacktopped. In some embodiments, the base portion and the top portion may include rebar.

[0053] In some implementations, the top portion and the base portion are made of different materials. In some implementations, the top portion and the base portion may be made from stainless steel. This may, for example, advantageously enable the catch basin system to be highly resistant to corrosion and staining.

[0054] In some aspects, the techniques described herein relate to a formed stormwater catch basin, including: a top portion configured to support a grate; a base portion, the top portion and the base portion together defining a continuous interior chamber and further defining fillable sidewall cavities configured to receive a curable structural material; and an outlet opening formed in the base portion and configured to fluidly couple the formed stormwater catch basin to a stormwater drainage conduit, wherein the formed stormwater catch basin includes one or more fill openings providing access to the fillable sidewall cavities to permit introduction of the curable structural material.

[0055] In some aspects, the techniques described herein relate to a formed stormwater catch basin, wherein the curable structural material includes a cementitious material.

[0056] In some aspects, the techniques described herein relate to a formed stormwater catch basin, wherein the top portion and the base portion are formed from a lightweight structural forming material.

[0057] In some aspects, the techniques described herein relate to a formed stormwater catch basin, wherein at least one of the one or more fill openings is operably covered by a cap including a post extending into the curable structural material within a corresponding one of the fillable sidewall cavities.

[0058] In some aspects, the techniques described herein relate to a formed stormwater catch basin, further including supports disposed within sidewall cavities of at least one of the top portion or the base portion and configured to receive reinforcing bar.

[0059] In some aspects, the techniques described herein relate to a formed stormwater catch basin, further wherein the supports include glide-in supports.

[0060] In some aspects, the techniques described herein relate to a formed stormwater catch basin, further including at least one internal support member disposed within the formed stormwater catch basin and configured to provide structural support during introduction of the curable structural material into the fillable sidewall cavities.

[0061] In some aspects, the techniques described herein relate to a modular formed stormwater catch basin, including: a top portion configured to support a grate; a base portion, wherein the top portion and the base portion are separate modular components, each defining fillable sidewall cavities configured to receive a curable structural material; the modular formed stormwater catch basin further including one or more fill openings providing access to the fillable sidewall cavities; an outlet opening formed in the base portion and configured to fluidly couple the modular formed stormwater catch basin to a stormwater drainage conduit; and an alignment mechanism configured to align the top portion relative to the base portion during assembly.

[0062] In some aspects, the techniques described herein relate to a modular formed stormwater catch basin, wherein the top portion further defines a curb structure configured to interface with a roadway or curbside surface.

[0063] In some aspects, the techniques described herein relate to a modular formed stormwater catch basin, wherein the curable structural material includes a cementitious material.

[0064] In some aspects, the techniques described herein relate to a modular formed stormwater catch basin, wherein the top portion and the base portion are formed from a lightweight structural forming material.

[0065] In some aspects, the techniques described herein relate to a modular formed stormwater catch basin, wherein at least one of the one or more fill openings is covered by a cap including a post extending into the curable structural material within a corresponding one of the fillable sidewall cavities.

[0066] In some aspects, the techniques described herein relate to a modular formed stormwater catch basin, wherein the alignment mechanism includes recessed features on one of the top portion or the base portion configured to receive corresponding protrusions on the other of the top portion or the base portion.

[0067] In some aspects, the techniques described herein relate to a modular formed stormwater catch basin, further including supports disposed within sidewall cavities of at least one of the top portion or the base portion and configured to receive reinforcing bar.

[0068] In some aspects, the techniques described herein relate to a modular formed stormwater catch basin, further wherein the supports include glide-in supports.

[0069] In some aspects, the techniques described herein relate to a modular formed stormwater catch basin, further including at least one internal support member disposed within the modular formed stormwater catch basin and configured to provide structural support during introduction of the curable structural material into the fillable sidewall cavities.

[0070] In some aspects, the techniques described herein relate to a method of forming a stormwater catch basin at an excavated area, including: providing a formed stormwater catch basin having fillable sidewall cavities, one or more fill openings, and one or more caps corresponding to each of the one or more fill openings; positioning the formed stormwater catch basin in the excavated area; introducing a curable structural material into the fillable sidewall cavities through the one or more fill openings; and covering at least one of the fill openings with a cap having a post extending into the curable structural material.

[0071] In some aspects, the techniques described herein relate to a method, wherein the formed stormwater catch basin further includes one or more glide-in supports designed to receive one or more reinforcing bars, the method further includes positioning each of the one or more reinforcing bars within each of one or more corresponding glide-in supports.

[0072] In some aspects, the techniques described herein relate to a method, wherein positioning the formed stormwater catch basin includes: placing a base portion of the formed stormwater catch basin within the excavated area, introducing the curable structural material into fillable sidewall cavities of the base portion, and subsequently positioning a top portion on the base portion prior to introducing the curable structural material into fillable sidewall cavities of the top portion.

[0073] In some aspects, the techniques described herein relate to a method, wherein the curable structural material includes a cementitious material.

[0074] A number of implementations have been described. Nevertheless, it will be understood that various modifications may be made. For example, advantageous results may be achieved if the steps of the disclosed techniques were performed in a different sequence, or if components of the disclosed systems were combined in a different manner, or if the components were supplemented with other components. Accordingly, other implementations are contemplated within the scope of the following claims.

Claims

1. A formed stormwater catch basin, comprising:a top portion configured to support a grate;a base portion, the top portion and the base portion together defining a continuous interior chamber and further defining fillable sidewall cavities configured to receive a curable structural material; andan outlet opening formed in the base portion and configured to fluidly couple the formed stormwater catch basin to a stormwater drainage conduit,wherein the formed stormwater catch basin includes one or more fill openings providing access to the fillable sidewall cavities to permit introduction of the curable structural material.

2. The formed stormwater catch basin of claim 1, wherein the curable structural material comprises a cementitious material.

3. The formed stormwater catch basin of claim 1, wherein the top portion and the base portion are formed from a lightweight structural forming material.

4. The formed stormwater catch basin of claim 1, wherein at least one of the one or more fill openings is operably covered by a cap including a post extending into the curable structural material within a corresponding one of the fillable sidewall cavities.

5. The formed stormwater catch basin of claim 1, further comprising supports disposed within sidewall cavities of at least one of the top portion or the base portion and configured to receive reinforcing bar.

6. The formed stormwater catch basin of claim 5, further wherein the supports comprise glide-in supports.

7. The formed stormwater catch basin of claim 1, further comprising at least one internal support member disposed within the formed stormwater catch basin and configured to provide structural support during introduction of the curable structural material into the fillable sidewall cavities.

8. A modular formed stormwater catch basin, comprising:a top portion configured to support a grate;a base portion, wherein the top portion and the base portion are separate modular components, each defining fillable sidewall cavities configured to receive a curable structural material;the modular formed stormwater catch basin further including one or more fill openings providing access to the fillable sidewall cavities;an outlet opening formed in the base portion and configured to fluidly couple the modular formed stormwater catch basin to a stormwater drainage conduit; andan alignment mechanism configured to align the top portion relative to the base portion during assembly.

9. The modular formed stormwater catch basin of claim 8, wherein the top portion further defines a curb structure configured to interface with a roadway or curbside surface.

10. The modular formed stormwater catch basin of claim 8, wherein the curable structural material comprises a cementitious material.

11. The modular formed stormwater catch basin of claim 8, wherein the top portion and the base portion are formed from a lightweight structural forming material.

12. The modular formed stormwater catch basin of claim 8, wherein at least one of the one or more fill openings is covered by a cap including a post extending into the curable structural material within a corresponding one of the fillable sidewall cavities.

13. The modular formed stormwater catch basin of claim 8, wherein the alignment mechanism includes recessed features on one of the top portion or the base portion configured to receive corresponding protrusions on the other of the top portion or the base portion.

14. The modular formed stormwater catch basin of claim 8, further comprising supports disposed within sidewall cavities of at least one of the top portion or the base portion and configured to receive reinforcing bar.

15. The modular formed stormwater catch basin of claim 14, further wherein the supports comprise glide-in supports.

16. The modular formed stormwater catch basin of claim 8, further comprising at least one internal support member disposed within the modular formed stormwater catch basin and configured to provide structural support during introduction of the curable structural material into the fillable sidewall cavities.

17. A method of forming a stormwater catch basin at an excavated area, comprising:providing a formed stormwater catch basin having fillable sidewall cavities, one or more fill openings, and one or more caps corresponding to each of the one or more fill openings;positioning the formed stormwater catch basin in the excavated area;introducing a curable structural material into the fillable sidewall cavities through the one or more fill openings; andcovering at least one of the fill openings with a cap having a post extending into the curable structural material.

18. The method of claim 17, wherein the formed stormwater catch basin further comprises one or more glide-in supports designed to receive one or more reinforcing bars, the method further comprises positioning each of the one or more reinforcing bars within each of one or more corresponding glide-in supports.

19. The method of claim 17, wherein positioning the formed stormwater catch basin comprises:placing a base portion of the formed stormwater catch basin within the excavated area,introducing the curable structural material into fillable sidewall cavities of the base portion, andsubsequently positioning a top portion on the base portion prior to introducing the curable structural material into fillable sidewall cavities of the top portion.

20. The method of claim 17, wherein the curable structural material comprises a cementitious material.

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