Q A(2).pdf

MT FERGUS 2016(1)

Horse Ranch Road Bridge Replacements

# General Technical Question Answer Date 1 x

On page S9.0 of the project plans, the exterior beam has the exterior side slightly wider than the interior side. Can the beam widths be modified so that all beams are 6’‐11 ¾” with symmetrical sides for ease of fabrication?

The beams will need to be fabricated as shown on the plans.

10/11/16

2 x Is epoxy coated steel required for the prestressed bulb tee beams?

epoxy coated bars are not specified for the prestressed beams.

10/11/16

3 x

Sheet S3.0 on the plans gives the tip elevations of the piling. This is approximately 20' embedded into the bedrock. Sheet S1.0 Note #2 mentions preboring. The Geotech report suggests the piling should be 25 - 35' long, however, the plans show them to be about 47' long. It appears that if it is going to be required to achieve the tip elevations shown that pre-boring every pile will be required, which is going to add substantial cost to the project. Will pre-boaring to attain the tip elevations be required or just a certain resistance determined by wave analysis and the blow count of the pile driver be used to determine when to stop driving the pile? bid as shown 10/21/16

4 x

There appears to be a phone line on the west side of the bridge that will be in conflict with the channel re-alignment and in conflict while constructing the detour. Has the government made arraingments with the local phone company to re-locate the line? See 107.02 10/21/16

Check General or Technical

5 x

The overhead power that goes over the south abutment also will create problems with construction of this bridge, is this line going to be relocated? See 107.02 10/21/16