Inquiry (采购产品): Quote I have a 100' lot and need a sound barrier put along a main arterial street in our city. We just moved into the house and it is very noisy due to the lack of landscaping, the proximity of a major intersection and the speed limit is rarely observed -- should be 35 mph. How tall would a barrier (wall) need to be to be effective and how is one designed? **** Hidden Message ***** Mary Merriman-Smith 97504 Company: None E-mail: mary2852@hotmail.com **** Hidden Message ***** mary2852@hotmail.com