A silt barrier support system broadly comprising a number of vertically extending posts, a number of silt barrier attachment devices, a number of end silt barrier attachment devices, and an inward silt barrier attachment device. The silt barrier attachment devices include vertical barbs for vertically retaining portions of an upper end of a geotextile fabric layer on upper portions of the posts. The end silt barrier attachment devices include horizontal barbs for laterally retaining end portions of the geotextile fabric layer on end posts. The inward silt barrier attachment device includes first and second sets of horizontal barbs for removing lateral slack from inward portions of the geotextile fabric layer.

The disclosed solar plank snow fence performs two separate but unique functions in one structure. The structure is capable of harnessing solar power through the use of photovoltaics to produce electricity and acting as a snow fence to minimize the effects of blowing snow down-wind from the structure. In embodiments, based on weather conditions, detected at a site by sensors utilized by the solar snow fence, the disclosed fence is capable of autonomously transitioning between solar tracking mode and snow fence mode according to weather conditions. In snow fence mode, the disclosed solar plank snow fence performs the function of a snow fence with a tracking position fixed to a predetermined position or angle. In embodiments, the tracking position (angle) may be between 0° and 15° relative to the ground and may be positioned facing the prevailing wind direction.

The disclosed solar plank snow fence performs two separate but unique functions in one structure. The structure is capable of harnessing solar power through the use of photovoltaics to produce electricity and acting as a snow fence to minimize the effects of blowing snow down-wind from the structure. In embodiments, based on weather conditions, detected at a site by sensors utilized by the solar snow fence, the disclosed fence is capable of autonomously transitioning between solar tracking mode and snow fence mode according to weather conditions. In snow fence mode, the disclosed solar plank snow fence performs the function of a snow fence with a tracking position fixed to a predetermined position or angle. In embodiments, the tracking position (angle) may be between 0° and 15° relative to the ground and may be positioned facing the prevailing wind direction.

A mailbox shield that includes first and second panels connected to one another forming an angle therebetween. The first and second panels are held in place by a plurality of wires therebetween and a post that is adjustable in height and is adapted to be inserted into a ground surface adjacent to a mailbox and is designed to deflect snow and ice being thrown or piled upon the mailbox by a passing snow plow.

A mailbox shield that includes first and second panels connected to one another forming an angle therebetween. The first and second panels are held in place by a plurality of wires therebetween and a post that is adjustable in height and is adapted to be inserted into a ground surface adjacent to a mailbox and is designed to deflect snow and ice being thrown or piled upon the mailbox by a passing snow plow.

Sediment-control fences designed to withstand hydrostatic forces associated with elevated backwater against the fence are disclosed. The fences are made of anisotropic fabric having different mechanical properties such as strength and stiffness in the machine direction versus the transverse direction. The anisotropic fabric may include fibrillated yarns in one direction and monofilaments in another direction. The sediment-control fences may be used without the necessity of wire or chain-link backed supports that are conventionally used to resist structural failure due to hydraulic overtopping of the fences.

Sediment-control fences designed to withstand hydrostatic forces associated with elevated backwater against the fence are disclosed. The fences are made of anisotropic fabric having different mechanical properties such as strength and stiffness in the machine direction versus the transverse direction. The anisotropic fabric may include fibrillated yarns in one direction and monofilaments in another direction. The sediment-control fences may be used without the necessity of wire or chain-link backed supports that are conventionally used to resist structural failure due to hydraulic overtopping of the fences.

A geomaterial web includes a first organic structural material and a second structural material that is different from the first structural material, which is bonded together with the first structural material to form a sheet-like composite material web extending in two mutually perpendicular directions. The first structural material and the second structural material are organic materials, where the first structural material has a first biodegradability and the second structural material has a second biodegradability that is different from the first biodegradability. The second biodegradability may be less than the first biodegradability.

An assembly for protecting an area from sand drift accumulation comprises a sand berm having an exposed surface that is chemically stabilized using a stabilizing agent and a fence embedded in the exposed surface of the sand berm at an angle to vertical. The fence deflects wind flow directed toward the sand berm downwards, protecting the area downwind from sand drift accumulation.

An assembly for protecting an area from sand drift accumulation comprises a sand berm having an exposed surface that is chemically stabilized using a stabilizing agent and a fence embedded in the exposed surface of the sand berm at an angle to vertical. The fence deflects wind flow directed toward the sand berm downwards, protecting the area downwind from sand drift accumulation.