SR 99 Aurora Bridge Fence drill test
On Wednesday, April 21, WSDOT and Aurora Bridge Fence contractor Massana Construction tested the system that Massana will use to drill the holes for the anchor bolts that will attach the fence to the bridge deck. Testing was conducted on both steel and concrete to simulate the materials of the bridge deck (the north and south ends of the bridge are concrete and the center section is steel). The test assessed two things: 1) The effectiveness of the contractor's system to contain concrete and steel dust, and 2) the noise levels of the drilling on concrete and steel.
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