Abstract: An environmental containment system has a wall frame for mounting to a wall. The wall frame has a left section and a right section. The wall frame has a top section and a bottom section. The wall frame extends horizontally from a vertical plane and has a wall side opening and a working side opening. A suction opening is formed on the wall frame. A filter is mounted to a filter opening formed on the wall frame. A pair of mounting brackets are spaced apart horizontally at a set predetermined distance. The pair of mounting brackets includes a right mounting bracket and a left mounting bracket. The right mounting bracket has at least one right screw opening, and the left mounting bracket has at least one left screw opening. The pair of mounting brackets are mounted to an inside surface of the wall frame.

Abstract: An environmental containment system has a wall frame for mounting to a wall. The wall frame has a left section and a right section. The wall frame has a top section and a bottom section. The wall frame extends horizontally from a vertical plane and has a wall side opening and a working side opening. A suction opening is formed on the wall frame. A filter is mounted to a filter opening formed on the wall frame. A pair of mounting brackets are spaced apart horizontally at a set predetermined distance. The pair of mounting brackets includes a right mounting bracket and a left mounting bracket. The right mounting bracket has at least one right screw opening, and the left mounting bracket has at least one left screw opening. The pair of mounting brackets are mounted to an inside surface of the wall frame.

Abstract: An environmental containment system has a wall frame for mounting to a wall. The wall frame has a left section and a right section. The wall frame has a top section and a bottom section. The wall frame extends horizontally from a vertical plane and has a wall side opening and a working side opening. A suction opening is formed on the wall frame. A filter is mounted to a filter opening formed on the wall frame. A pair of mounting brackets are spaced apart horizontally at a set predetermined distance. The pair of mounting brackets includes a right mounting bracket and a left mounting bracket. The right mounting bracket has at least one right screw opening, and the left mounting bracket has at least one left screw opening. The pair of mounting brackets are mounted to an inside surface of the wall frame.

Abstract: A bridge approach, abutment construction and road widening technique and method using tilt-up panels and lightweight concrete fill is disclosed. A bridge approach ramp is constructed using tilt-up panels, initially supported using tilt form braces, to from a retaining wall perimeter, and subsequently filling the interior with sequential pours of lightweight concrete. The present invention advances the art of bridge construction by providing an improved bridge approach structure that is capable of rapid construction and provides an improved and cost effective structure as compared with prior art teachings.