Fluid flow enhancing devices disclosed herein are adapted to enhance flow of fluid through subsurface watershed conduits, for example, culverts, drainpipe and the like. Such fluid flow enhancing devices advantageously enhance watershed runoff functionality in subsurface watershed conduits by altering watershed flow from a parabolic flow pattern to a rotational flow pattern while still accommodating fish passage requirements. This change in flow pattern beneficially provides turbulence that disrupts and flushes debris out of the subsurface watershed conduits. This disruption and flushing establishes a passive cleaning functionality within the subsurface watershed conduits that serves to clean the subsurface watershed conduits after suitable upstream water delivery event (e.g., heavy rain, controlled water release, etc.). In doing so, these fluid flow enhancing devices overcome one or more shortcomings associated with subsurface watershed conduits in a manner that overcomes drawbacks associated with conventional design and in-use considerations for such subsurface watershed conduits.

Protection of upland areas adjacent to a variety of water body shorelines from flooding events by combining modified drainage culverts with and hidden by natural ecosystem flood attenuation environments.

A method for managing the flow of water beneath a ground surface uses modules. Assemblies of such modules are disclosed. The modules include supports and a deck portion, and the supports are spaced apart and form multiple channels with a main section of the deck portion. The deck portion also includes at least one section extending from a main section.

Structures, systems, and methods for controlling water flow in relation to an underpass space of a road support structure, including a method comprising receiving precipitation forecast data; receiving water volume data for water flowing toward an underpass space of a support assembly underlying a road, wherein a first culvert is positioned through the underpass space and a second culvert positioned around the support assembly configured to transfer water around the support assembly, and wherein one or more barriers are positioned to control flow of water within the first and second culvert; predicting water volume input to the underpass space based on the water volume data and the precipitation forecast data; and controlling the position of the one or more barriers to control flow of water within the first culvert and the second culvert based on the predicted water volume input.

A box culvert is disclosed having a top panel, a first side panel, and a second side panel, and a base panel. The first side panel and second side panel extend from the top panel to the base panel. The base panel is configured to have a plurality of sealed holes. The sealed holes are configured to be unsealed. Installing the box culvert in a riverway allows a road or trail thereover, and water passage therethrough. Opening of a specific amount, position, and size of sealed holes creates unsealed holes in the base panel. The unsealed holes allows groundwater upwelling therethrough, configured specifically to the waterway. The upwelling caused by removal of the specific plugs promotes aquatic habitat, contributes to water quality improvements, and ameliorates disruption from the insertion of the box culvert.

Disclosed in the present application is a system for a storm water and traffic collector box culvert. The system may comprise a plurality of reinforced slabs with an upper slab that may be configured as a reinforced surface to collect storm water runoff. The plurality of slabs may be connected by a plurality of attachment mechanisms. Accordingly, the present system is directed to an environmentally friendly culvert design that can minimize the magnitude of earthworks required by traditional drainage systems while also providing increased drainage capabilities.

A corrugated metal plate comprises a plate configured to define a series of crests and troughs, where the plate has longitudinal edges extending parallel to longitudinal axes of the crests and the troughs and transverse edges extending orthogonally to the longitudinal axes of the crests and the troughs. The corrugated metal plate further comprises at least one of: at least one longitudinal flange extending from each longitudinal edge, and at least one transverse flange extending from each transverse edge.

A method of assembling a corrugated structure formed of corrugated metal plates. The corrugated structure may include corrugations extending transversely of the longitudinal length of said corrugated structure. At least some of said corrugated metal plates may include a longitudinal flange extending from each longitudinal edge and a transverse flange extending from each transverse edge. At least some of the flanges may include alignment features. The method includes: bringing adjacent plates into abutting relationship such that alignment features on adjacent plates matingly engage; installing fasteners through aligned holes to secure abutting plates; and repeating said bringing and said installing as necessary until said corrugated structure is assembled.

Two lengths of FRP rebar are formed into spirals and coupled at cross over locations to form a structure to be embedded into a cementitious material or covered in a cementitious material for repairing a form or in new construction.

A culvert to ditch transitioning device for lining a ditch proximate to an end of a culvert includes an end panel, which has an orifice positioned therein, and a pair of side panels. A terminal segment of the culvert, which extends into the ditch, can be inserted through the orifice so that a first face of the end panel is in substantial abutment with an end embankment of the ditch. Each side panel is coupled to a respective opposed end of the end panel and extends substantially perpendicularly therefrom. The pair of the side panels lines side embankments of the ditch, proximate to the end embankment. The end embankment and the lined portions of the side embankments thus no longer require lawn care, such as mowing, trimming, and weeding.