Q A_0617.pdf

MT STILLWATER 207(1)

West Roasebud Creek Road Reconstruction

# General Technical Question Answer Date 1 x Please indicate if contractor can continue to let the public use the existing bridge while contractor is building the new bridge. This includes removing a few of the existing precast concrete abutments on the southeast side that overlap where the right side of the new bridge is going.

Yes, they can keep the existing bridge open, but need to submit shop drawings according to 104.03(b)(2)(g) for Partial or Full removal of structural bridge elements.

6/15/16

2 x

In addition, on sheet G.2, it appears that Abutment #1 encroaches onto the existing roadway approx. 5’‐6’. This will affect the existing roadway and traffic attempting to cross the existing bridge. As excavation will happen for the abutment, it appears that shoring will be needed out on the roadway and traffic will be reduced to single lane here. Is this correct?

The intent is to use the existing bridge while construction the new one. The contractor will have to include adequate traffic control to assure public safety and will have to take necessary precautions to assure stability of the roadway and existing bridge.

6/15/16

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