A perimeter pile anchor foundation is built by forming a plurality of individual perimeter pile anchors in a large generally circular pattern to form a perimeter wall. The individual pile anchors are contiguous, each pile overlapping the adjacent piles on either side. The overlapping pile anchors form an arch such that compression and friction between the pile anchors resist soil caving and sloughing pressure when soil inside the perimeter wall is excavated, enabling the perimeter pile foundation to be effectively constructed in weak saturated soils and/or cohesionless sands that will not allow conventional concrete foundation excavations. A concrete foundation ring is formed inside the pile perimeter wall to support a tall and/or heavy tower or other structure subject to high upset forces.

A cover for a utility enclosure includes a cover having a top, a bottom, a front side, a rear side, a left side, and a right side, defining an interior. The cover further includes a plurality of ribs in the interior dividing the interior into a plurality of spaces. The cover further includes the top having one or more air vents. The cover further includes the air vents having channels constructed to vent air in the spaces to an exterior of the cover, thereby preventing flotation of the cover in water.

A system for assisting and improving the installation of playground equipment and related components, the system includes a life-size layout templates and a methodology for installation of foundations and other structures. The system tarp has holes at strategic locations which can be laid on the ground for marking the ground at each of the holes for foundations of the equipment and components of the equipment. For footing and foundation layouts, the required footings dimensions can be printed on life size/to scale tarps or fabric which can be laid out in the installation area and positioned to the exact needed use zone or placement of the site. After the position has been confirmed the footings can be cut to the appropriate footing size and excavated, giving a clean/dry work area and can be left to remain on the ground as a weed/vegetation barrier.

A cover for an underground enclosure may include an upper surface comprising a pattern of bosses, a first slot and a second slot disposed on the upper surface, a lower surface opposite the upper surface. A first reinforcement member may be coupled to the lower surface. The first slot may extend into the first reinforcement member, and a second reinforcement member may be coupled to the lower surface and aligned with the first reinforcement member. The second slot may extend into the second reinforcement member. The cover may be configured to be lifted by the first slot and the second slot.