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Viewing inquiries for 04-2K8404
Submit new inquiry for this projectInquiry #1: Contract plans sheet SCQ-3 page 109 of 202 shows a K rail total quantity of 21,321 feet.
The table breakdown adds to much larger quantity .
Please check the K rail actual quantities & adjust the bid item accordingly.
Inquiry submitted 01/28/2021
Response #1:Submitted for consideration.
Response posted 02/12/2021
Response #2:See Addendum 1.
Response posted 03/10/2021
Inquiry #2: Can you please provide ALL relative EXIST smoothness data in PPF format?
Inquiry submitted 01/31/2021
Response #1:Submitted for consideration.
Response posted 01/31/2021
Response #2:Available ppf data can be downloaded from the link below. Use the drop-down menu to get the files.
LINK - http://ppmoe.dot.ca.gov/des/oe/weekly-ads/specs-ntb.php?c=04-2K8404
Response posted 02/11/2021
Inquiry #3: Could you please provide the cross-sections for the project?
Inquiry submitted 02/01/2021
Response #1:Submitted for consideration.
Response posted 02/01/2021
Response #2:See Addendum 1.
Response posted 03/10/2021
Inquiry #4: Can you please provide cross sections or grading sheets for this project so that accurate earthwork calculations can made.
Thank You!
Inquiry submitted 02/03/2021
Response #1:Submitted for consideration.
Response posted 02/04/2021
Response #2:See Addendum 1.
Response posted 03/10/2021
Inquiry #5: Item Code 011117 - Temporary 12' Slotted Corrugated Steel Pipe - Is a 2-1/2" Grate acceptable?
Inquiry submitted 02/03/2021
Response #1:Submitted for consideration.
Response posted 02/04/2021
Response #2:Yes, Concrete Backfill (Item 610300) quantity will be reduced by 0.41 CF/LF for Temp 12" SCSP trench when grate is reduced from 6.25" to 2.5".
Response posted 02/05/2021
Inquiry #6: Item Code 011117 - Temporary 12' Slotted Corrugated Steel Pipe - Is a 2-1/2" Grate acceptable?
Inquiry submitted 02/03/2021
Response #1:Same question as above.
Response posted 02/04/2021
Inquiry #7: Item Code 665718 18" Slotted Corrugated Steel Pipe (1.68" thick) 8 Gauge. 8 Gauge is not available. 12 Gauge is the heaviest thickness available. 14 Gauge is typical. Please review for gauge change.
Inquiry submitted 02/03/2021
Response #1:Submitted for consideration.
Response posted 02/04/2021
Response #2:Use 12 gauge (0.109" thick) 18" Bituminous Coated Slotted Corrugated Steel Pipe (Item Code 665818) if 8 gauge is not available.
Response posted 02/05/2021
Inquiry #8: Item Code 011115, 011116: 12" and 18" Temporary Alternative Pipe Culvert. This is temporary material. 0.168" Thickness (8 gauge). This is not available through out the industry. Any reason you can use 16 gauge galvanized?
Inquiry submitted 02/03/2021
Response #1:Submitted for consideration.
Response posted 02/04/2021
Response #2:12" and 18" Temporary pipe can be galvanized 16 gauge (0.064†thick), but they shouldn’t be reused in permanent drainage system.
Response posted 02/05/2021
Inquiry #9: Is Abutment 4 Elevation shown correctly? The Left Side is shown lower than the Right Side on the Elevation despite the bottom of footing elevations being shown at 98.5' and 96.5' for the Left and Right Sides, respectively, on the Foundation Plan.
Inquiry submitted 02/08/2021
Response #1:Submitted for consideration.
Response posted 02/12/2021
Response #2:Bid per current contract documents.
Response posted 02/24/2021
Inquiry #10: The quantities for Items 56 and 57 appear to be understated. Please confirm.
Inquiry submitted 02/09/2021
Response #1:Submitted for consideration.
Response posted 02/12/2021
Response #2:Bid per plans and specs,
Response posted 02/16/2021
Inquiry #11: On sheets SCQ-5 and SCQ-6 for Stage Construction Temporary Drainage Quantities, the last column lists an item for "Concrete Backfill (Rapid Strength)". The summation sheet on SCQ-7 and the Bid Item Description for Item number 75 call out "Concrete Backfill (Pipe Trench)". Is all of the concrete for this bid item RSC?
Inquiry submitted 02/10/2021
Response #1:Submitted for consideration.
Response posted 02/11/2021
Response #2:See Addendum 1.
Response posted 03/10/2021
Inquiry #12: 1) Bid Item # 88 " Temporary Drainage Inlet" is 16 each, the quantity sheet (sheet #113) has a total of 15.1 cubic yards for 12 Inlets, which is correct?
2) Why is RHMA - OGFC being used for temporary paving in each of the stages? This can be very expensive to move-in a Rubber Plant for such a small quantity. Can HMA - OGAC be used instead?
Inquiry submitted 02/11/2021
Response #1:Submitted for consideration.
Response posted 02/11/2021
Response #2:1) Submitted for consideration.
2) No, HMA - OGAC cannot be used. Please follow the contract documents.
Response posted 02/12/2021
Response #3:1) See Addendum 1.
Response posted 03/10/2021
Inquiry #13: There are no information on the drawings for the bid item #43 "Replace Asphalt Concrete Surfacing" with quantity of 5960 CY. Please provide a quantity table showing stations, Lane #'s & dimensions for each area on this item of work.
Inquiry submitted 02/11/2021
Response #1:Submitted for consideration.
Response posted 02/12/2021
Response #2:See Addendum 1.
Response posted 03/10/2021
Inquiry #14: Minor Concrete (Curb & Gutter) volume by CY on sheet Q-1 is incorrect and does not represent work shown for the station limits. It seems like quantities were copied from the Remove Curb & Gutter by the LF. Please clarify.
Inquiry submitted 02/11/2021
Response #1:Submitted for consideration.
Response posted 02/12/2021
Response #2:Please bid item Minor Concrete (Curb & Gutter) as is per the contract documents.
Response posted 02/16/2021
Inquiry #15: On sheet X-1, section 17 does not show RHMA-O. This work is on HWY 80 East Bound direction and entire area on East Bound getting RHMA-O except section 17. Is this correct?
Inquiry submitted 02/11/2021
Response #1:Submitted for consideration.
Response posted 02/12/2021
Response #2:The quantity for RHMA-O in the quantity sheets is correct and accounts for Section 17.
Response posted 02/16/2021
Inquiry #16: Roadway Excavation Quantity table on sheet SCQ-4 shows 5340 CY and it is missing the 5628 CY for stage 4. Correct Roadway Excavation quantity total should be 10968.1 CY.
Inquiry submitted 02/11/2021
Response #1:Submitted for consideration.
Response posted 02/12/2021
Response #2:See Addendum 1.
Response posted 03/10/2021
Inquiry #17: Please provide limits and structural section numbers on sheets L-1, L-2 & L-3.
Inquiry submitted 02/11/2021
Response #1:Submitted for consideration.
Response posted 02/12/2021
Response #2:Station limits and structural sections are defined on X-1 sheet.
Response posted 02/16/2021
Inquiry #18: Please show where we can find work for bid Item #51 "Remove Asphalt Concrete Surfacing" 540 CY on the drawing. Also this work is not shown on the summary of quantities.
Inquiry submitted 02/11/2021
Response #1:Submitted for consideration.
Response posted 02/12/2021
Response #2:Bid Item #51 "Remove Asphalt Concrete Pavement (CY)" quantity is shown on Stage Construction Quantity SCQ-4 sheet.
Response posted 02/16/2021
Inquiry #19: Item Code #665718 Regarding Inquiry #6 response. The response was to use the 12 Gauge as the heaviest Gauge and Bituminous Coated. Bituminous Coating Tanks have not been available in California for several years. Polymer Coated is an approved equal. Maximum Gauge for 18" Slotted Corrugated Steel Pipe Polymer Coated is 14 Gauge. Will you accept the 14 Gauge Polymer Coated Slotted Corrugated Steel Pipe?
Inquiry submitted 02/11/2021
Response #1:Submitted for consideration.
Response posted 02/12/2021
Response #2:14 Gauge, 18†Slotted Corrugated Steel Pipe with Polymeric Sheet Coating can be accepted for the Pay Item No. 665718.
Response posted 02/16/2021
Inquiry #20: 1. What are the diameters of the voids in the deck slab?
2. What are the materials allowed to create the voids?
Inquiry submitted 02/12/2021
Response #1:Submitted for consideration.
Response posted 02/12/2021
Response #2:See plan sheet 192, Typical Section No. 1, for Post-tensioned Voided Concrete Slab and section 51-1.03C of the Standard Specifications. Bid per current contract documents.
Response posted 02/18/2021
Inquiry #21: Special Provisions (section 8) makes mention of a Contractor-supplied biologist, however there is no corresponding Bid Item for this. If the contractor is required to provide a biologist, please provide Bid Item.
Inquiry submitted 02/16/2021
Response #1:Submitted for consideration.
Response posted 02/16/2021
Response #2:See Addendum 1.
Response posted 03/10/2021
Inquiry #22: How is the minor concrete backfill between the existing retaining wall and the new sheet pile wall paid?
Inquiry submitted 02/16/2021
Response #1:Submitted for consideration.
Response posted 02/16/2021
Response #2:See Addendum 1.
Response posted 02/19/2021
Inquiry #23: Can the Temporary Storm Drain Systems be abandoned in place?
Inquiry submitted 02/17/2021
Response #1:Submitted for consideration.
Response posted 02/19/2021
Response #2:Temporary storm drainage systems should not be abandoned in place, they should be removed when no longer required.
Response posted 02/19/2021
Inquiry #24: Layout sheet L-2 STA LT "GA" 13+41 TO LT "GA" 14+67 shows MGS Guardrail to be installed with an AILT.
The MGS has no bid item and no quantity listed in the quantity tabs.
Additionally it appears that the Soft Stop item may have been intended for the downstream end of the MGS run. Should that have been an SFT Anchor?
Inquiry submitted 02/18/2021
Response #1:Submitted for consideration.
Response posted 02/22/2021
Response #2:Resident Engineer will determine the changes or additions needed during construction.
Response posted 02/25/2021
Inquiry #25: Please postpone the bid due date by 2 weeks. To allow for additional DBE outreach.
Inquiry submitted 02/18/2021
Response #1:Submitted for consideration.
Response posted 02/19/2021
Response #2:See Addendum 2 issued on February 24, 2021.
Response posted 02/24/2021
Inquiry #26: We would like to ask for bid date to be extended.
Inquiry submitted 02/18/2021
Response #1:Submitted for consideration.
Response posted 02/19/2021
Response #2:See Addendum 2 issued on February 24, 2021.
Response posted 02/24/2021
Inquiry #27: On sheet 12 (C-1), The detail section for the Minor Concrete ( Textured Paving ) indicates the AB Cl3 is under the concrete. How is the AB Cl3 paid for?
Inquiry submitted 02/18/2021
Response #1:Submitted for consideration.
Response posted 02/22/2021
Response #2:See Addendum 2.
Response posted 03/10/2021
Inquiry #28: Drawing 180 of 202 indicates that there is an 18" AC overlay atop the original bridge deck (1947). However as-builts suggest that a large amount of the material above the original bridge deck is Cement Treated Base. For bidding purposes, please indicate the breakdown of overlay thickeness (i.e. X" of AC, Y" of CTB). Additionally, there's no indication of the amount of AC overlay on the 1956 bridge widening portions of the bridge. Please provide that assumed thickness as well.
Inquiry submitted 02/19/2021
Response #1:Refer to Addendum No. 1 dated February 19, 2021. Cross sections are available as specified in section 2-1.06B.
Response posted 02/22/2021
Inquiry #29: Our DBE subcontractors are asking for more time to be able to comprehend all of the Addendum #1 changes. Please provide more time to bid this project.
Inquiry submitted 02/19/2021
Response #1:Submitted for consideration.
Response posted 02/19/2021
Response #2:See Addendum 2 issued on February 24, 2021.
Response posted 02/24/2021
Inquiry #30: Addendum #1 issued 2/19/21 contains a considerable amount of new information and changes. Please postpone the bid date to allow us, our subcontractors and our DBE partners time to analyze the new information in order to provide a clear and accurate estimate.
Inquiry submitted 02/19/2021
Response #1:Submitted for consideration.
Response posted 02/19/2021
Response #2:See Addendum 2 issued on February 24, 2021.
Response posted 03/10/2021
Inquiry #31: Is the entire retaining wall being removed or only that portion that will allow Stage 3 and new barrier construction?
Inquiry submitted 02/19/2021
Response #1:Submitted for consideration.
Response posted 02/19/2021
Response #2:Only that portion of the retaining wall needs to be removed that will allow Stage 3 and new barrier construction.
Response posted 02/19/2021
Inquiry #32: We would also like to request a bid date extension due to the release of Addendum 1.
Inquiry submitted 02/19/2021
Response #1:Submitted for consideration.
Response posted 02/22/2021
Response #2:See Addendum 2 issued on February 24, 2021.
Response posted 02/24/2021
Inquiry #33: Per inquiry # 23 regarding temporary drain system to be abandoned in place . Since RSC to be used for backfill per addendum1. Can the temporary storm drain system be abandoned in place. If need to be removed will the RSC materials quantities increased in order to fill the trench twice.
Inquiry submitted 02/22/2021
Response #1:Submitted for consideration.
Response posted 02/22/2021
Response #2:Temporary Drainage should not be abandoned in place, remove temporary drainage system when no longer necessary.
Quantity of Rapid Setting Concrete (RSC) was not considered to backfill the trench after removing temporary drainage system. Contractor should bid according to their means and methods in compliance with the stage construction plans.
Trench backfill after removing temporary slotted pipe should comply with Section 61-7 of the Special Provisions.
Sections 61-6, 19-3, and 16 of the Standard Specifications are applicable to temporary culverts.
Response posted 02/24/2021
Inquiry #34: - Regarding to bid item #38 - Fiber Roll, please qualify which installation type of Fiber Roll for EC Type 2? (EC Legend/ ECL-1 shows Fiber Roll installation for EC Type 1 only).
Inquiry submitted 02/23/2021
Response #1:Submitted for consideration.
Response posted 02/23/2021
Response #2:EC Type 2 fiber rolls installation may be type 1 or 2, it's up to the Contractor.
We explicitly call for Type 2 installation over RECP (Netting) (all EC Type 1 areas).
As long as EC Type 2 fiber rolls are installed ahead of compost, hydroseed, and hydromulch, the installation method is up to the Contractor (installation type 1 or 2).
Response posted 02/24/2021
Inquiry #35: Addendum 1 states that the Rock Core Samples are available for inspection at the Transportation Laboratory. Please provide which location and address for viewing.
Inquiry submitted 02/23/2021
Response #1:Submitted for consideration.
Response posted 02/23/2021
Response #2:Please refer to paragraph 4 in section 2-1.06B of the Standard Specifications. Bid per current contract documents.
Response posted 02/25/2021
Inquiry #36: Will Caltrans waive or reimburse all the bridge toll cost for this project since all work is nearby or close to the Carquinez Bridge?
Inquiry submitted 02/23/2021
Response #1:Submitted for consideration.
Response posted 02/23/2021
Response #2:Caltrans will not waive or reimburse the bridge toll cost for the project.
Response posted 02/25/2021
The information provided in the responses to bidder inquiries is not a waiver of Section 2-1.07, "JOB SITE AND DOCUMENT EXAMINATION" of the Standard Specifications or any other provision of the contract, nor to excuse the contractor from full compliance with the contract. Bidders are cautioned that subsequent responses or contract addenda may change a previous response.