Noise attenuating barrier and method of installing same

A wall for abating noise from a noisy area, comprising:

• a plurality of piers with integral column members, each of said piers secured in ground holes adjacent the noisy area with said integral column member extending vertically from the pier above the ground and spaced from at least one adjacent pier;
• a plurality of columns each including a pair of wing walls extending laterally from the column, each of said columns and included wing walls being integrally formed of precast concrete with each wing wall having front and rear faces extending laterally from said column to an outer side spaced from the column, said columns each being secured in a vertical orientation to said pier column members whereby said wing wall outer sides have a selected spacing from one wing wall outer side of an adjacent column secured to said adjacent pier;
• a spandrel panel having front and rear faces extending between opposite sides, said opposite sides being spaced greater than said selected spacing of wing walls of adjacent columns whereby
• said spandrel panel front face adjacent one of said panel opposite sides overlaps said rear face of one of the wing walls of one of said adjacent columns, and
• said spandrel panel front face adjacent the other of said panel opposite sides overlaps said rear face of one of the wings walls of said other adjacent column;
• and
• first connectors on said spandrel panel front face adjacent both of said panel opposite sides and second connectors on said wing wall rear faces adjacent said wing wall outer sides, said first and second connectors connected together to secure said overlapping walls and spandrel panels in substantially face to face contact.