Various embodiments for a shock pad that may be combined with other similar shock pads to form an elastic sub-layer of an athletic field, or other surface, are disclosed. An artificial turf system may include a synthetic surface and an elastic sub-layer disposed between the synthetic surface and a ground surface. The elastic sub-layer may include a plurality of shock pads configured to retain the synthetic surface and absorb shock. Individual ones of the shock pads may include a top surface connected with the synthetic surface, and a bottom surface facing the ground surface, where a geofabric is affixed to the bottom surface of the individual ones of the pads.

Embodiments provide a polymeric walkway for mitigating surface water runoff and a method for constructing the same. A polymeric walkway module is secured to a pre-conditioned ground. The polymeric walkway module includes an upper panel, a lower panel, and a plurality of spacers. The upper panel includes a plurality of perforations. The plurality of spacers is positioned between the upper panel and the lower panel defining a hollow space. Surface water permeates through the plurality of perforations and occupies the hollow space during the surface water runoff.

An impact-absorbing assembly includes a covering layer being one or more of artificial turf, rubber mats, polymer mats, short pile carpeting, particulate infill, wood chips, and ground rubber chips. Also included is a layer of underlayment panels positioned beneath the covering layer. The panels have a panel section with a plurality of drain holes formed therethrough. A top surface of the panels is configured to support the covering layer. A bottom surface of the panels has a plurality of bottom projections that cooperate to define bottom channels suitable to permit water flow across the bottom surface, the bottom channels being in fluid communication with the panel drain holes. The bottom projections define a first spring rate characteristic that is part of a first stage and a second spring rate characteristic is part of a second stage, the first stage having a smaller volume of material than the second stage.

An impact-absorbing assembly includes a covering layer being one or more of artificial turf, rubber mats, polymer mats, short pile carpeting, particulate infill, wood chips, and ground rubber chips. Also included is a layer of underlayment panels positioned beneath the covering layer. The panels have a panel section with a plurality of drain holes formed therethrough. A top surface of the panels is configured to support the covering layer. A bottom surface of the panels has a plurality of bottom projections that cooperate to define bottom channels suitable to permit water flow across the bottom surface, the bottom channels being in fluid communication with the panel drain holes. The bottom projections define a first spring rate characteristic that is part of a first stage and a second spring rate characteristic is part of a second stage, the first stage having a smaller volume of material than the second stage.

The present subject matter relates to a method and system for synthetic turf and the installation thereof. Modular turf sections are formed by attaching a turf section to a corresponding base structure of any desired size and shape. The base structure has a smooth top surface and smooth edges, and can be cut to any desired shape, angle or cutout. The base structure may include a PVC flushing system. The modular turf sections are laid side by side to cover a surface having any size and shape. The modular turf sections are portable and can be individually lifted after having been installed, thereby allowing for cleaning, repair and/or access under one or more selected modular turf sections, or for the replacement of selected modular turf sections which become worn or damaged.

Various embodiments for a panel that may be combined with other similar panels to form a padding layer of an athletic field, or other surface, are disclosed. The panel for use in a padding layer of a panel system includes a male locking element configured to form a dove-tail connection with at least one adjacent panel. The dove-tail connection includes a male locking element of the panel coupling with a female locking element of the at least one adjacent panel and forming an interference fit between the male locking element and the female locking element. A space is proved between the male locking element and the female element when coupled that permits thermal expansion of the panel.

The subject matter described herein includes a paving system having a backing matrix, a plurality of untreated black locust wood pavers arranged in a defined pattern relative to one another on the backing matrix, the defined pattern creating regular void spaces therebetween, a permeable medium disposed between the wood pavers and filling the void spaces, at least one solar cell embedded within at least one wood paver, one or more layers of underlayment beneath the matrix, the one or more layers of underlayment having graduated sizes or porosities, and a flexible coating displaced around the perimeter of the backing matrix.

Various embodiments for a pad that may be combined with other similar pads to form a padding layer of an athletic field, or other surface, are disclosed. The pad includes a top surface and a bottom surface. Bottom-side projections are positioned on the bottom surface of the pad. Water channels are positioned on the bottom surface of the pad defined as a recessed area between individual ones of the bottom-side projections. A drainage hole is positioned in at least one of the bottom-side projections such that the drainage hole does not connect with any of the water channels on the bottom surface. The drainage hole may be at least partially coupled to projection channels on the bottom-side projections, where the projection channels act as a water vacuum to facilitate air circulation and vertical water evacuation relative to the drainage hole.

A kit including a plurality of interior paving blocks and a plurality of edge paving blocks.

A paving block having interior drainage.