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Order Number UPC State Project Number Last Date to Post Questions
B22 105190 0211-069-801, M501, B613 9/20/2019
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Subject: Permit Sketches/Cofferdams Type: Other
Question Date: 8/23/2019 12:20:12 PM
It is our experience that the cofferdam system founded on the stream bottom as shown on the permit sketches will not work as designed. It is apparent by the sketch details and dimensions drawn (24 x 60) the Department envisioned using 12 ft jersey type barriers in submission to the permitting agency. Any cofferdam system must be founded on rock whether this type of system or any other. However, it is our experience the Department does not allow the means and methods necessary to install a cofferdam system of this type on a rock bottom that will ensure it will work as a cofferdam. Please advise how the Department envisioned utilizing a gravity/barrier cofferdam system as drawn when applying for the permit as this system will not work in the field unless it is installed at top of rock elevation? Please note we believe this is a design discrepancy that requires clarification for the bidding contractors.  
Answer   Date:
Subject: Permit Sketches/Temp Work Bridges Type: Permits
Question Date: 8/23/2019 12:07:37 PM
The permit plans are very detailed and precise, and should generally work well presuming the conditions encountered are what is depicted on the plan/sketches. However, for the bidding contractor to complete the design for the temporary work bridge specifically, the hydro-logic data used by the Department to develop the prelim design is needed. For example, location number, and orientation of the piers greatly impacts the cost of the structure and installation. Would the Department consider providing the hydro-logic data and any other design parameters (equipment size, loading, etc.) utilized by the Department in preparing the design for this project?  
Answer   Date:
Subject: Pier 2 Foundation Elevation Type: Plan
Question Date: 8/23/2019 11:59:52 AM
Plans show bottom of footing to be 711.5. Boring #111 shows rock at about 717. Boring #110 shows no rock (drill depth 56 ft). Would the Department please provide what their intention would be should rock not be found in all or part of this footing footprint? Or is the breccia noted in the borings considered to be weathered rock that the footings are to be founded upon.? Please clearly state the scope of work intended for excavation and cofferdam work in this location. Thank you.  
Answer   Date:
Subject: Item 1320 Cofferdams Type: Permits
Question Date: 8/23/2019 11:39:39 AM
Please clarify the number and location of cofferdams required. The permit sketches identify Pier 2, Pier 3, Pier 4, Existing Boat Ramp, and New Boat Ramps (2). Total of 6 EA. Bid item states 8 EA. Please advise.  
Answer   Date:
Subject: Bat Exclusion Plan Type: Plan
Question Date: 8/13/2019 5:08:03 PM
Bridge Plan Sheet 2, Bat Notes. Please clarify what the Feb 1 2020 date means. One part of these notes say "exclude any and all bats from returning to roost on the existing structure prior to February 1, 2020" and the next sentence says "Bat Exclusion Plan shall be performed prior to February 1, 2020 and shall be maintained by the contractor until all bridge demolition has been completed". By these statements, the BEP must be performed both before and after the February 1, 2020 date. Please clarify.  
Answer   Date: 8/20/2019 9:57:46 AM
February 1, 2020 is when bats are expected to be considering spring roosting sites and the bridge shall not be open and available to bats from that date forward. The note also states that the Bat Exclusion Plan shall be submitted prior to December 1, 2019 for review. The execution of the Bat Exclusion Plan shall be before February 1, 2020 and the measures taken shall remain in place until demolition is complete.  
Subject: Existing Bridge Plans Type: Other
Question Date: 8/13/2019 4:52:26 PM
Please provide existing bridge plans. Thank you.  
Answer   Date: 8/20/2019 9:58:47 AM
Existing bridge plans have been posted to ProjectWise as As_Built.set.  

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