For me though the most astounding figure in the story is that some.
Highway sound barrier walls cost per mile.
Sound wall in california by michael patrick cc by sa 2 0 a 2010 survey by the federal highway administration counted 2 748 linear miles of noise barriers built along highways in the u s.
Disadvantages of concrete highway barriers.
Current construction costs average 51 61 per square foot.
Take a peek at the soundwall project showcase.
But how do these walls work and what led to their development.
The average cost per mile for the walls is 1 8 million in ohio.
Construction costs for rural barriers may be lower and urban barriers may be much higher.
The total spent on sound walls through 2013 the most recent government figures tops 6 billion.
The average cost for noise barrier construction of this type has been about 12 per square foot of barrier surface or approximately 200 per linear foot of barrier i e a 1 ft.
The concept of the sound barrier and how it works is remarkably simple.
Each state has a different threshold for what triggers the need for a reasonable intervention.
Between 2008 and 2010 roughly 554 million worth of sound walls were built.
The low installation costs of concrete sound walls leads to an economical buy when compared to metal or wood noise barrier wall applications the sierra wall noise barrier wall system has the additional advantage of being relocated if highway boundaries change.
The barriers are largely made of concrete and cost over 2 million per mile with some 6 billion spent on them through 2013.
According to the federal highway administration the average cost of building a sound wall is 30 78 per square foot.
Thus the approximate average cost for a typical one mile long 16 foot high wooden plank noise barrier is about 1 million.
The average cost per mile for the walls is 1 8 million in ohio.
This translates into a fourteen foot high wall typical costing about 3 9 million dollars per mile.
If the road noise 200 feet from the highway hits the threshold of 67 decibels then odot must consider building a noise barrier.
Newer research proves concrete sound barrier walls are some of the worst offenders for creating unwanted and unpredictable reflected noise issues.
