INTERSTATE 91 BRIDGE UNDERPASS
50 Years Later, Heavy Duty Granite Paving Blocks Still Performing on Bridge Underpasses
When Interstate-91 in Western Massachusetts was constructed fifty years ago, Williams Stone heavy-duty granite paving blocks were installed under all of the bridge overpasses to provide soil retention and erosion control. Up and down the length of this busy highway, they continue to perform well and look good. Below are a few examples from the Greenfield, MA roundabout at the intersection of I-91 and Route 2.