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 culvert pipe inlet arrangement includes a pan member and an inlet that is configured to be disposed within a culvert pipe is disclosed.

A culvert marker has a pole connected to the wire rope; a wire rope; and a base. A marker has a structural base; a wire rope extending out of the structural base; and a mast supported by the wire rope. A marker has a structural base; and a wire rope extending out of the structural base, with a central axis defined by the wire rope projecting through an area defined between plural ground-or-support-surface contacting points that are defined by the structural base and are spaced angularly about the central axis. Related methods and combinations are also discussed.

A knitted geotextile includes a plurality of first strength yarns arranged in a first layer, each of the plurality of first strength yarns extending in a first direction, a plurality of second strength yarns arranged in a second layer, each of the plurality of second strength yarns extending in a second direction, a plurality of capillary active yarns arranged in at least one of the first layer or the second layer, and a plurality of knitting yarns interconnecting the plurality of first strength yarns, the plurality of second strength yarns, and the plurality of capillary active yarns.

A knitted geotextile includes a plurality of first strength yarns arranged in a first layer, each of the plurality of first strength yarns extending in a first direction, a plurality of second strength yarns arranged in a second layer, each of the plurality of second strength yarns extending in a second direction, a plurality of capillary active yarns arranged in at least one of the first layer or the second layer, and a plurality of knitting yarns interconnecting the plurality of first strength yarns, the plurality of second strength yarns, and the plurality of capillary active yarns.

Systems and methods for a ground water filtration system are described. The ground water filtration system includes paver blocks designed to facilitate liquid seepage between the paver blocks and to route the seepage to a preferred area. A filter may be utilized to remove undesired particulates in the seepage prior to routing. The ground water filtration system additionally provides at least one layer of stone to facilitate flow direction of the seepage. At least one geogrid fabric is also provided to further enhance ground water filtration.

The air vent for culvert is a vent. The air vent for culvert is configured for use with a culvert. The air vent for culvert forms a fluidic connection between the interior space of the culvert and the atmosphere. The air vent for culvert equalizes the gas pressure between the atmosphere and interior of the culvert such that a fluid flows freely through the culvert. The air vent for culvert incorporates a base structure, an equalizing pipe, and a threaded connection. The threaded connection secures the equalizing pipe to the base structure. The base structure secures the equalizing pipe and the culvert. The base structure forms a fluidic connection between the interior of the culvert and the equalizing pipe.

A water channel is disclosed. The water channel has a channel body defining a flow passage having an entrance, an exit, and defining a flow direction from the entrance to the exit. Intake deflectors are positioned at the entrance and are angled away from the flow direction relative to the channel body and positioned to direct a flow of water into the entrance of the channel body. Outlet deflectors are positioned at the exit of the channel body and extend away from the exit of the channel body. The outlet deflectors are angled away from the flow direction relative to the channel body.

This disclosure relates generally to stormwater management and, more particularly, to a stormwater chamber with a continuous curvature. The stormwater chamber may comprise a chamber body with a chamber wall, an apex, a base, and a first and second opening. The chamber wall may include a continuous curvature from the apex of the chamber body to the first and second openings and a continuous curvature from the apex of the chamber body to the base.

This disclosure relates generally to stormwater management and, more particularly, to a stormwater chamber with a continuous curvature. The stormwater chamber may comprise a chamber body with a chamber wall, an apex, a base, and a first and second opening. The chamber wall may include a continuous curvature from the apex of the chamber body to the first and second openings and a continuous curvature from the apex of the chamber body to the base.