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Question
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Date:
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7/17/2020 1:33:52 PM
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Drainage Descriptions sheet C2C was updated as part of Addendum 1 but I can not find any changes other than the revision title block. Can you confirm what the changes to sheet C2C were if any?
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Answer
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Date:
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7/20/2020 9:31:28 AM
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Drawing C2C (Revision 1) Revised drainage descriptions for structures 4-1, 4-2 and 4-4 to add connection to UD-4.
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Question
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Date:
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7/17/2020 8:14:38 AM
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Will the VDOT accepts generator status of all known and unknown pre-existing hazardous material and will sign transportation manifests as such whether shown in the documents or not, to be removed under this contract?
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Answer
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Date:
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7/20/2020 11:02:02 AM
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The asbestos has been removed from the existing structure.
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Question
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Date:
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7/16/2020 1:14:15 PM
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Addendum 1 stated to replace (bridge) plan sheets 2, 9,16,20A, and 21. There was no previous sheet 20A (Bridge Conduit System), only sheet 20 (CPSR Rail). The updated plan sheets on projectwise no longer contain the original plan sheet 20. Was this sheet supposed to be removed? If not can it be added back to the plans?
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Answer
1 previous answer(s)
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Date:
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7/18/2020 8:23:48 AM
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Sheet 20A of 21 was added in Addendum 1. There is no change to Sheet 20 of 21 and it has been uploaded to ProjectWise.
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Question
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Date:
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7/16/2020 3:34:32 PM
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The above question was to read 'Addendum 2' (not 1)
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Answer
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Date:
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7/18/2020 8:23:00 AM
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Noted
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Question
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Date:
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7/16/2020 2:03:45 PM
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Addendum 1 stated (bridge) plan sheet 2 would be replaced. There is no updated plan sheet 2 in the bid documents on projectwise. Can the plan sheet be added to the documents if required?
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Answer
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Date:
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7/18/2020 8:22:43 AM
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Sheet 2 of 21 (Revision 2, 7/13/2020) is uploaded to ProjectWise
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Question
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Date:
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7/16/2020 9:24:43 AM
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The MOT Typical sections depict MGS-1A at light poles (sheet C2A(12)), but there is not pay item for MGS-1A. The plan sheets (sheets C4 & C3) do not depict MGS-1A. Is MGS-1A required on the job and if so will there be a pay item added?
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Answer
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Date:
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7/18/2020 8:27:34 AM
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Plan sheets C3 and C4 correctly depict GR-2A at light poles. There is no MGS-1A on this project.
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Question
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Date:
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7/14/2020 12:45:14 PM
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The quantity provided for Pay Item 630, Waterproofing Membrane Type III appears to compensate the area of temporary asphalt overlay performed during Stage I aa well as the portion of asphalt overlay removed and replaced during Stage III.
Please confirm that the Waterproofing Membrane pay item will be paid once in Stage I and again in Stage III in the area required to be removed and replaced, as the asphalt removal process will damage the original membrane.
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Answer
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Date:
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7/16/2020 8:43:31 AM
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The quantity for Pay Item 68403 (line 630) Waterproofing Membrane Type III, includes areas installed in Stages 1 and 2 with the asphalt overlay, and in Stage 3 with the removed and replaced asphalt.
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Question
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Date:
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7/14/2020 1:51:34 PM
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VDOT Road and Bridge Specifications Section 429, Part 429.06(h)(3), the second paragraph described the required installation methodology to be used when installing the membrane waterproofing.
Because the contemplated work (C97,) will occur in numerous stages, splices in the membrane waterproofing will be necessary between each construction Stage. We are anticipating 5 separate splice lengths will be necessary. Does VDOT have a special provision or procedure that bidders should plan to follow to make each of these splices? Should, instead, the entire bridge deck be milled and overlaid after all other work is complete with a continuous membrane waterproofing product?
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Answer
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Date:
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7/18/2020 8:27:09 AM
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As required in Specification Section 429.06(h)(3), membrane waterproofing under the asphalt will need to be spliced with 4” overlap along the beam ends at pier during construction of the 2nd span in Stages 1 and 2; along beam shear key/VAMC between Stages 1 and 2; and in Stage 3 for the overlay removal (sheet 16 of 21). The construction staging shop drawings shall include sketches of proposed limit of asphalt removal and the membrane waterproofing splice between stages as described above. Possible splice details include (1) over demo asphalt overlay to expose 4” edge of waterproofing installed in previous stage; (2) folding under extra 4” strip of waterproofing installed in initial stage, that can be exposed and spliced in the following stage.
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Question
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Date:
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7/14/2020 11:46:33 AM
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In attempting to source the VHPC from prospective suppliers, we have been unable to find reference to the term (shown on Plan Sheet 9 of 21 of the bridge plans), within the 2016 VDOT Road and Bridge Specifications. Specification Section 405 discussed grouting and post-tensioning.
Note 3, on the same plan sheet refers to a current "VDOT Special Provision for Shear Keys and Blockouts Between Adjacent Members", we have been unable to find the referenced Special Provision within the Contract Documents. Can this Special Provision be provided to bidders and prospective suppliers for use?
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Answer
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Date:
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7/16/2020 9:41:09 AM
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Special Provisions for Shear Keys and Blockouts Between Adjacent Members and VHPC will be added to the Contract post Award via Change Order. Any additional costs associated with these provisions will be addressed by Change Order.
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Question
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Date:
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7/14/2020 9:23:01 AM
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As the asphalt curb will be a temporary feature used for a relatively short duration, can a standard available asphalt mix be used to construct the curb instead of the custom specialty asphalt mix specified for this pay item?
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Answer
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Date:
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7/16/2020 8:44:24 AM
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The curb shall be the same asphalt type SM-9.5D as the temporary asphalt pavement.
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Question
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Date:
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7/10/2020 2:00:22 PM
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Bridge Plan Sheet 4 of 21 depicts the bolt down barrier in Detail "NEW SLAB" being placed on top of asphalt. Bridge Plan Sheet 16 of 21 in Detail "STAGE III OVERLAY REMOVAL" depicts the bolt down barrier being placed directly onto the prestressed concrete slab.
We anticipate that this condition will occur after Stage I work is complete, prior to shifting traffic into Stage II; and again after the Stage II Weekend work, while the rail stub wall and terminal walls are constructed, prior to switching traffic into Stage III.
Preserving and recovering cast-in anchorage inserts through an asphalt overlay will be problematic and our preference is to install these bolt-down parapets directly onto the prestressed slab as depicted on Bridge Plan Sheet 16 of 21. Will attaching the bolt down barrier onto the prestressed slab be permitted in these short duration (roughly a month) scenarios?
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Answer
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Date:
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7/14/2020 9:27:33 AM
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As shown on Sheet 4 of 21, temporary barriers do not require bolting when in their WEEKDAY MOT location, if there is no construction within the barrier deflection zone.
If the Contractor needs to reset WEEKDAY MOT, at the end of Stage 1 and Stage 2 MOT to complete railing installation before setting up MOT for the next stage, it is acceptable to place asphalt overlay up to the face of the WEEKDAY temporary barrier, and bolt the barrier (to cast-in inserts) if a bolted barrier is needed.
After completion of the railing installation, the remaining asphalt overlay shall be installed prior to the next stage.
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Question
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Date:
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7/9/2020 4:34:46 PM
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Some plan sheets appear to anticipate the Eastern parapet and rail across the new superstructure to be constructible during the Stage 2 weekend work (Plan Sheets 2CA(09) and 2CA(10).) The bridge sequence of construction plan sheet (Plan Sheet 3 of 21) depicts a more realistic sequence in that after the deck slab replacement work over the weekend, the Stage 2 barrier service are reverted back to the Stage 2 weekday configuration.
Please confirm that the Department does not expect the parapet, railing and FOA guardrail attachments along the left edge of Route 7 to be complete and appropriate to open to traffic during the same weekend closures as the bridge slab replacements.
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Answer
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Date:
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7/10/2020 3:55:45 PM
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As much as possible of the barrier, FOA and guardrail installation should be completed during the Stage 2 weekend MOT. The Stage 2 weekday MOT may be utilized as needed after the weekend MOT to complete installation of FOA and guardrail.
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Question
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Date:
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7/9/2020 1:10:02 PM
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It appears many work activities are to be considered incidental to Regular Excavation:
Existing Curb & Gutter Removal
Demolition of temporary detour pavement
Demolition of temporary asphalt curb
Possibly Clearing & Grubbing
Possibly the Pavement Demolition Shown on Bridge Plan Sheet 16 of 21 along the edge of prestressed slabs at each abutment.
Because so many costly elements of work will be incidental to a very small quantity of regular excavation, can this item be designated as a Plan Quantity or can this Pay Item be made a Lump Sum item instead of a unit price item?
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Answer
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Date:
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7/10/2020 3:56:10 PM
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The REGULAR EXCAVATION pay item will remain a unit price (CY) item.
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Question
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Date:
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7/13/2020 2:02:42 PM
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Please confirm that the volume of each of the following elements of work will be measured for payment as Regular Excavation:
A) Volume of Concrete Curb & Gutter Removed
B) Volume of Pavement Demolition Excavation along the backwalls of the bridge (pavement and aggregate) Detail D, Bride Plan Sheet 16 of 21
C) Volume of dirt for temporary pavement behind the existing curb and gutter
D) Volume of temporary pavement (asphalt and aggregate)
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Answer
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Date:
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7/16/2020 8:44:45 AM
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In addition to the items listed in the question, the REGULAR EXCAVATION pay item also includes removal of strip of existing asphalt pavement adjacent to the existing curb and gutter to be removed, as shown on sheets C2A(01) and C2A(02).
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