Methods and systems for an adaptable temporary inlet protection assembly

Abstract

A temporary silt retention assembly for protection of inlets used in storm water drainage systems. The temporary silt retention assembly includes a silt retention device body formed from a substantially rigid material and including a framework structure having a series of water permeable openings. A base plate can be attached to a lower end of the silt retention device, the base plate extending outwardly from the lower end of the silt retention device. An adapter can be molded with or attached to the base plate or body of the silt retention device, the adapter including a frame that can engage with the base plate or lower end of the silt retention device body and at least one cover feature configured to overlap and cover openings between the silt retention device and an inlet structure on which it is mounted.

What is claimed is: 
     
         1 . A temporary silt retention assembly for filtering stormwater entering an opening of a drainage structure of a stormwater drainage system, comprising:
 a silt retention device, comprising a body including an upper end and a lower end and a series of water permeable openings defined therein wherein the silt retention device is configured to seat over and substantially cover the opening of the drainage structure;   an adapter formed with or coupled to the body of the silt retention device adjacent the lower end thereof, the adapter including at least one cover feature configured to extend along or about portions of the opening of the drainage structure not covered by the silt retention device; and   a filter material applied along the body of the silt retention device and the cover feature of the adapter for filtering silt from the stormwater.   
     
     
         2 . The temporary silt retention assembly of  claim 1 , wherein the at least one cover feature of the adapter comprises a body of a flexible material and having a series of water permeable openings arranged therealong. 
     
     
         3 . The temporary silt retention assembly of  claim 1 , wherein the silt retention device and the adapter are molded as a substantially unitary structure. 
     
     
         4 . The temporary silt retention assembly of  claim 1 , further comprising a base plate arranged at the lower end of the silt retention device and projecting outwardly from the lower end of the silt retention device. 
     
     
         5 . The temporary silt retention assembly of  claim 4 , wherein the adapter is configured to releasably couple to the base plate or rim. 
     
     
         6 . The temporary silt retention assembly of  claim 4 , wherein the silt retention device, the base plate or rim, and the adapter are molded as a single structure. 
     
     
         7 . The temporary silt retention assembly of  claim 4 , wherein the base plate or rim and/or the adapter are substantially square, rectangular, circular or oval-shaped. 
     
     
         8 . The temporary silt retention assembly of  claim 1 , wherein the body of the silt retention device is substantially cylindrical. 
     
     
         9 . The temporary silt retention assembly of  claim 1 , further comprising a detachable filter cover formed from a porous filtering material, the detachable filter cover configured to cover the silt retention device, the base plate, and the adapter of the silt retention assembly, wherein the detachable filter cover comprises a top potion supported by the upper end of the body and a body portion covering the framework structure of the silt retention device. 
     
     
         10 . A temporary silt retention assembly,
 a silt retention device, comprising a body having a framework structure including a series of water permeable openings defined therethrough;   a base plate or bottom rim arranged about a lower portion of the body;   an adapter comprising a frame and at least one flexible cover feature extending along or about the frame, the flexible cover feature configured to overlap and enclose exposed portions of an inlet structure not covered by the silt retention device mounted thereover;   a filter material applied to the silt retention device body and overlapping the adapter for filtering silt from stormwater flows, wherein the silt retention device and the adapter support the filter material against silt and debris collecting thereagainst and enable passage of the stormwater into the inlet structure.   
     
     
         11 . A method of forming a temporary silt retention assembly, comprising:
 providing a first mold for molding a silt retention device body having an upper, and a lower end, and a framework structure including a series of water permeable openings therebetween;   coupling a second mold to a portion of the first mold, the second mold configured to mold a base plate and/or an adapter for the temporary silt retention assembly; and   applying a synthetic or composite material into the coupled first and second molds and molding the silt retention device body with the base plate and/or the adapter, as a substantially unitary structure.