Roadway water drainage installation

A roadway drainage installation, which comprises:

• a roadway;
• an elevated pavement extending alongside the roadway;
• an apron extending alongside the roadway so that it is located between the roadway and the pavement at the level of the roadway;
• a curb extending upwardly from the apron to the pavement so that the apron and curb define between them a water pathway;
• a subterranean water channel running below the pavement and/or the apron and/or the roadway;
• a curb inlet device comprising an opening in the apron as well as an opening in the curb, with the openings being in communication with each other and leading into the water channel so as to provide access from the water pathway to the water channel;
• and
• a grid device located in the apron opening, with the grid device comprising an elongate support;
• and a plurality of elongate water deflecting members spaced apart along the support and protruding therefrom so that they extend parallel to one another as well as at an obtuse angle to the support, with each member having a planar primary water deflecting surface which extends at said obtuse angle to the support, so that the primary water deflecting surfaces hence extend parallel to one another, as well as a planar secondary water deflecting surface extending transversely to the primary water deflecting surface, so that all the secondary water deflecting surfaces lie in the same plane.

A roadway water drainage installation, which comprises:

• a roadway;
• an elevated pavement extending alongside the roadway;
• an apron extending alongside the roadway so that it is located between the roadway and the pavement at the level of the roadway;
• a curb extending upwardly from the apron to the pavement so that the apron and the curb defined between them a water pathway;
• a storm water conduit running below the pavement and/or the apron and/or the roadway;
• a curb inlet device comprising an opening in the apron as well as an opening in the curb, with the openings being in communication with each other and with the device being connected to the storm water conduit such that water can pass from the water pathway through the openings into the storm water conduit;
• a grid device located within the apron opening;
• and an elongate drainage member comprising an elongate water channel leading into the curb inlet device and located below the roadway surface;
• an inlet to the water channel through which water passing along the roadway surface can enter into the water channel with this water then flowing along the water channel into the curb inlet device and hence into the storm water conduit, with the inlet to the water channel extending along substantially the entire length of the water channel and being defined between a leading edge of the drainage member which water flowing along the roadway surface will encounter first, and a trailing edge spaced from the leading edge;
• and a water deflecting device in the inlet to the water channel, the water deflecting device comprising a lip protruding from the trailing edge so as to span a portion of the inlet, and a planar component protruding from the lip into the inlet, with the undersurface of the lip providing a planar water deflecting surface, as well as the planar component providing a planar water deflecting surface, for deflecting water entering the inlet downwardly to the channel.

A roadway water drainage installation, which comprises:

• a roadway;
• an elevated pavement extending alongside the roadway;
• an apron extending alongside the roadway so that it is located between the roadway and the pavement at the level of the roadway;
• a curb extending upwardly from the apron to the pavement so that the apron and the curb defined between them a water pathway;
• a storm water conduit running below the pavement and/or the apron and/or the roadway;
• a curb inlet device comprising an opening in the apron as well as an opening in the curb, with the openings being in communication with each other and with the device being connected to the storm water conduit such that water can pass from the water pathway through the openings into the storm water conduit;
• a grid device located within the apron opening;
• and an elongate recess in, and extending along, the curb, the one end of the recess being in communication with the curb opening and the recess being located at the level of the apron such that some water flowing along the pathway will enter the recess, flow along the recess, and be discharged from the recess into the curb inlet device.