Viewing inquiries for 04-235624

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Inquiry #1: In order to accurately quantify Cut/Fill areas and Variable HMA, please provide cross sections.
Inquiry submitted 12/04/2013

Response #1:Submitted for consideration.
Response posted 12/04/2013


Response #2:You can download the cross sections below:

http://www.dot.ca.gov/dist4/construction/contracts/04-235624/XSections.zip (zipped pdf files, 13.1MB)
Response posted 12/10/2013




Inquiry #2: Due to the long # of working days, can bid items # 95 Furnish bridge mounted sign structures be included in progress payment/MOH payments?
Inquiry submitted 12/10/2013

Response #1:Submitted for consideration.
Response posted 12/10/2013


Response #2:No. Furnished items are not eligible for progress payments per Construction Manual, Chap 3, Section 3-9A.
Response posted 12/11/2013




Inquiry #3: How is the structure backfill shown in the "Limits of Payment Backfill" detail on sheet 143 paid for? There is no structure backfill pay item. Also, how is the backfill required for the front of the bridge abutments paid for?
Inquiry submitted 01/02/2014

Response #1:Submitted for consideration.
Response posted 01/06/2014


Response #2:See section 19-3.03E(1), paragraph 10 and section 19-3.04, paragraph 8 of the standard specification for structure backfill limits and payment.
Response posted 01/09/2014




Inquiry #4: Sheet 143 detail "Limits of Payment Excavation" shows the contractor to remove 16' of existing roadway back from the either the BB or EB. What structure section replaces what is removed? How is this restoration work paid for as it is not shown on the roadway plans?
Inquiry submitted 01/02/2014

Response #1:Submitted for consideration.
Response posted 01/06/2014


Response #2:Submitted for consideration.
Response posted 01/06/2014


Response #3:Use structural sections shown on plans. Grading plane of controlled low strength backfill material will be dependent on depth of structural sections with respect to final roadway profile.
Response posted 01/23/2014




Inquiry #5: Sheet 143 detail "Limits of Payment Excavation" shows the contractor to remove 16' of existing roadway back from the either the BB or EB. What structure section replaces what is removed? How is this restoration work paid for as it is not shown on the roadway plans?
Inquiry submitted 01/02/2014

Response #1:Submitted for consideration.
Response posted 01/15/2014


Response #2:Use structural sections shown on plans. Grading plane of controlled low strength backfill material will be dependent on depth of structural sections with respect to final roadway profile.
Response posted 01/23/2014




Inquiry #6: Bid item #12 is for 20,000 LF of temporary traffic screen. The quantity sheet SCQ-4 (plan sheet 77 of 182) indicates 20,000 LF of screen, but when I add the individual items I come up with only 15,000 LF. Which quantity is correct?
Inquiry submitted 01/07/2014

Response #1:Submitted for consideration.
Response posted 01/08/2014


Response #2:See Addendum 2.
Response posted 01/27/2014




Inquiry #7: Is the contractor provided inspection specified under Section 11-4 required for the concrete barrier rail pours?
Inquiry submitted 01/08/2014

Response #1:Submitted for consideration.
Response posted 01/08/2014


Response #2:Yes, please bid per current contract documents.
Response posted 01/13/2014




Inquiry #8: Plan sheet C-1 (page 12 of 182) details the temporary creek diversion system. Will the contractor be allowed to leave this diversion in place for the full length of the project, or are we required to remove the diversion by October 15th of each year, and reinstall the following summer (June 1st)?
Inquiry submitted 01/09/2014

Response #1:Submitted for consideration.
Response posted 01/09/2014


Response #2:The temporary creek diversion system must be removed by October 15th of each year, and reinstall the following summer.
Response posted 01/10/2014




Inquiry #9: Bid item #33 "Natural Resource Protection Plan". Would you please detail what is required under this bid item. I apologize if our specifications cover this work, but at this time I have not found a specification section that describes this bid item.
Inquiry submitted 01/09/2014

Response #1:Submitted for consideration.
Response posted 01/09/2014


Response #2:The Natural Resource Protection Plan Bid item covers the work specified in 14-6.02C(5) Protection Measures, which includes the Bird Nesting Removal plan.
Response posted 01/12/2014


Response #3:See Addendum 2.
Response posted 01/27/2014




Inquiry #10: Reference is made to Section 49-2.02A(1) which states "you may substitute Tubex grout injection piling for the Class 200, Alternative "W" piles..."
It is not clear to us how the Tubex piles would be paid should we elect to install Tubex piles. We assume that payment would still be made on Items 81 and 82, Furnish And Drive Pile (Class 200) (Alternate W), to the quantities of Class 200 Alternate W piles shown on the Plans eventhough the field measured quantity of Tubex piles will be different than the quantity of Class 200, Alternate W piles shown on the Plans. Please confirm.

Inquiry submitted 01/10/2014

Response #1:Submitted for consideration.
Response posted 01/10/2014


Response #2:When Tubex Grout Injection Piles is substituted for Class 200 Alternative “W” piles, payment will still be Items 81 and 82, Furnish Piling (Class 200)(Alternative W) and Drive Pile (Class 200)(Alternative W), respectively. Refer to paragraph 7 of Section 9-1.03 of the Standard Specifications.
Response posted 01/13/2014




Inquiry #11: Specification Section 14-6.02, SPECIES PROTECTION, discusses bird nesting prevention. Section 14-6.02D, Payment is "Not Used". Accordingly, since there is no bid item for Bird Nesting Prevention Work, the work is paid in the various items per Section 9-1.03, PAYMENT SCOPE.
Specification Section 14-6.03, BIRD PROTECTION, specifically Section 14-6.03C, states that bird nesting prevention, if ordered, is change order work.
Please clarify whether bird nesting prevention work on this contract is to be ordered by the Engineer and paid as change order work.

Inquiry submitted 01/10/2014

Response #1:Submitted for consideration.
Response posted 01/13/2014


Response #2:See Addendum 2.
Response posted 01/23/2014


Response #3:See Addendum 2.
Response posted 01/27/2014




Inquiry #12: Bid Item #119 "Minor Concrete (Misc. Construction)" shows as 1.1 SY on the bid schedule, but as 1.1 CY on plan sheet DQ-1 (plan sheet 38 of 182). Which is correct?

Inquiry submitted 01/13/2014

Response #1:Submitted for consideration.
Response posted 01/14/2014


Response #2:See Addendum 2.
Response posted 01/27/2014




Inquiry #13: Please could you provide cross sections of the work at the bridge for accurate excavation quantities.
Inquiry submitted 01/14/2014

Response #1:Submitted for consideration.
Response posted 01/15/2014


Response #2:Cross sections of the creek underneath the bridge is not available.
Response posted 01/16/2014


Response #3:Cross section at the bridge is not available. Refer to the Foundation Plan on Sheet 153 of 182 of the current contract plans and the Structures Final Hydraulic Report that is included in the Supplemental Project Information to determine approximate excavation quantities.
Response posted 01/17/2014




Inquiry #14: I want to follow up on bidder inquiry #3:
1) Plan sheet 143 shows structural backfill around the three piers. The bid schedule does not have a pay item for strural backfill. Please issue an addendum adding this bid item.
2) There will be structural backfill in front of the two abutment footings. This is not currently shown on the abutment detail. Please correct this with an addendum and add the structural backfill quantity to that of the piers.

Inquiry submitted 01/15/2014

Response #1:Submitted for consideration.
Response posted 01/16/2014


Response #2:1) Structure Backfill bid item is not needed. Structure backfill is included in the payment for Structure Excavation (Bridge). See section 19-3.03E(1), paragraph 10 and section 19-3.04, paragraph 8 of the standard specification for structure backfill limits and payment.

2) Unless you receive an addendum addressing this issue, please bid per the current contract documents. Structure Backfill bid item is not needed. Structure backfill is included in the payment for Structure Excavation (Bridge). See section 19-3.03E(1), paragraph 10 and section 19-3.04, paragraph 8 of the standard specification for structure backfill limits and payment.
Response posted 01/17/2014


Response #3:See Addendum 2.
Response posted 01/27/2014




Inquiry #15: Is all work associated with the bridge limited to between June 1 and Oct 15? If so, what are the requirements for restoration in the work zone by Oct 15? i.e If we have demolished the entire bridge portion allowed in Stage 3 do we have to have the entire new bridge portion (incl Pave) for that Stage built by Oct 15? or will we be allowed to partially rebuild the bridge and leave the pertinent Traffic Handling Plan in place until the following June?
Inquiry submitted 01/21/2014

Response #1:Submitted for consideration.
Response posted 01/22/2014


Response #2:Freeway bridge sections can be partially built and completed the following construction season if necessary. No temporary construction items (i.e. water diversion, falsework, etc.) may remain in the creek after Oct. 15. Work such as paving and bridge rails that does not involve work in the creek may be done after Oct. 15.
Response posted 01/23/2014




Inquiry #16: Will a Staging area be provided for contractor trailer, equipment etc?
Inquiry submitted 01/21/2014

Response #1:Submitted for consideration.
Response posted 01/22/2014


Response #2:There are no areas within State R/W available to give to the Contractor.
Response posted 01/27/2014




Inquiry #17: How is ingress/egress (for labor, equipment, material, offhaul) to the work site in Stage 1 and Stage 3 achieved?
Inquiry submitted 01/21/2014

Response #1:Submitted for consideration.
Response posted 01/22/2014


Response #2:For Stage 1 and Stage 3, there are 3 entrances in each stage. NB has 1 entrance at the end of K-Rail. SB has 2 entrances, one on beginning of K-Rail and one at the end of K-Rail.
Response posted 01/23/2014




Inquiry #18: Regarding bid item 95, Bridge Mt signs on the S3 & S4 show the sign panels as being 264(22ft) x 100" however the details for the structures on SDS 3 & 5 show the structure to be 10' long. Please verify if they are supposed to be 10' or 22' length structures and walkways.
Inquiry submitted 01/22/2014

Response #1:Submitted for consideration.
Response posted 01/27/2014


Response #2:Please Bid per Current Contract Documents.
Response posted 01/28/2014




Inquiry #19: Please provide a detail showing the attachment method for the CL-3, Vinyl Clad on CB60C.
Inquiry submitted 01/22/2014

Response #1:Submitted for consideration.
Response posted 01/23/2014


Response #2:Attach the posts of the chain link fence (type CL-3, vinyl-clad) to the concrete barrier type 60C using the post anchorage detail shown in Standard Plan B11-52.
Response posted 01/27/2014




Inquiry #20: Will the Buy America material requirement for steel products apply to the Temporary Fence & Gates (Type CL-6) since this is not a permanent structure?

Will 6' high temporary chain link panel fence on stands be acceptable for use on this project?

Or, will the temporary fence be required to have driven posts?

Inquiry submitted 01/22/2014

Response #1:Submitted for consideration.
Response posted 01/23/2014


Response #2:1) RSS section 6-2.05C does not exempt temporary work items from "Buy America" requirements. Temporary items are exempt from Buy America requirements.01/27/14

2) Both methods are acceptable. Bid this item per the contract documents.
Response posted 01/23/2014




Inquiry #21: Bid Item No.56 States: "Remove concrete curb and sidewalk" 430LF. Does this amount include the sidewalk over the existing bridges?
Inquiry submitted 01/22/2014

Response #1:Submitted for consideration.
Response posted 01/23/2014


Response #2:Remove Concrete Curb and Sidewalk does not include removal of sidewalk over the existing bridge, that is included in the bridge demolition. Bid item per Construction Details shown on layout sheet C-2.
Response posted 01/27/2014




Inquiry #22: Can you please provide asbuilts of the existing bridge so that we can accurately determine what is required for the bridge demolition? Also, to what extent do the existing piles under the existing bridge foundation need to be removed?
Inquiry submitted 01/23/2014

Response #1:Submitted for consideration.
Response posted 01/27/2014




Inquiry #23: ITEMS #134 & 138, CONCRETE BARRIER, TYPES 60C & 60C MOD.:
CDOT furnished X-sections (Bid Question #1, CDOT Response #2) do not cover all of the locations of the above two Concrete Barriers. Please provide X-sections or Pavement Elevations on each side of the Barrier so that the variable "C" wall height can be determined.

Inquiry submitted 01/23/2014

Response #1:Submitted for consideration.
Response posted 01/23/2014


Response #2:Refer to the contract plan sheet 151 of 182 to determine the top of elevation of Bid Item #134, Concrete Barrier (Type 60C Modified).
Response posted 01/24/2014


Response #3:Download the existing cross section of the alignment RD and RC below. Please note, that the attached alignment D2 is the same as alignment RD and C1 is the same as alignment RC in the attached slope stake notes of the previous auxiliary lane project.

www.dot.ca.gov/dist4/construction/contracts/04-235624/SlopeStakes.zip (zipped pdf, 4.8MB)
Response posted 01/27/2014




Inquiry #24: Is the temp timber construction mat only required while demolition work is being undertaken (10-4.01A) or is it required whenever any work in the creek is being undertaken?
Inquiry submitted 01/23/2014

Response #1:Submitted for consideration.
Response posted 01/23/2014


Response #2:Temp timber construction mat is only required while demolition work is being undertaken.
Response posted 01/24/2014




Inquiry #25: Is Caltrans going to provide all the cross sections? Specifically, RC 15+55 to 20+30 and RD 301+80 to 319+00. These are required to calculate the barrier height.
Inquiry submitted 01/23/2014

Response #1:Submitted for consideration.
Response posted 01/24/2014


Response #2:Download the existing cross section of the alignment RD and RC below. Please note, that the attached alignment D2 is the same as alignment RD and C1 is the same as alignment RC in the attached slope stake notes of the previous auxiliary lane project.

www.dot.ca.gov/dist4/construction/contracts/04-235624/SlopeStakes.zip (zipped pdf, 4.8MB)
Response posted 01/27/2014




Inquiry #26: Please provide cross sections for all locations of 60C barrier. Shoulders and missing median sections.
Inquiry submitted 01/23/2014

Response #1:Submitted for consideration.
Response posted 01/24/2014


Response #2:Download the existing cross section of the alignment RD and RC below. Please note, that the attached alignment D2 is the same as alignment RD and C1 is the same as alignment RC in the attached slope stake notes of the previous auxiliary lane project.

www.dot.ca.gov/dist4/construction/contracts/04-235624/SlopeStakes.zip (zipped pdf, 4.8MB)
Response posted 01/27/2014




Inquiry #27: Our timber lagging supplier is indicating that the treatment specified in Section 57 of the Special Provisions contains creosote. Please verify that the creosote treated timber is allowed to be in contact with the San Francisco Bay's waters.
Inquiry submitted 01/23/2014

Response #1:Submitted for consideration.
Response posted 01/24/2014


Response #2:Timber must be untreated.
Response posted 01/27/2014


Response #3:See Section 10-4.02E Timber and Connector Rods of the Special Provisions.
Response posted 01/28/2014




Inquiry #28: Drawing 153, “Foundation Plan”, shows that the bottom of the abutment and pier footings are to be at the elevation -5.5’. In order to properly remove the existing footings and install the new footings, the creek bed must be excavated from the original grade. The details shown in Limits of Payment Excavation on Drawing 143, “Index of Plans”, shows that 1’ of excavation outside of the footprint of the new footings is to be paid for but no maximum excavation is noted. If safe sloping is used back from the elevation of the bottom of the footings for both the existing and new footing locations, a substantial amount of the creek bed is to be temporarily removed. Please confirm that there is no limit to the excavation past the pay limits that the contractor can perform at its own cost.
Inquiry submitted 01/23/2014

Response #1:Submitted for consideration.
Response posted 01/24/2014


Response #2:Plan sheet 143 of 182 indicates limits of payment for excavation, excavation beyond the limits will be determined by the Contractor.
Response posted 01/27/2014




Inquiry #29: Please refer to Bidder's Questions #21, 23, & 24, and CDOT response to #21:
Bottom of Barrier elevations are required on each side of the Type 60C & 60C Modified Barriers to determine the total variable offset height. Please provide more information.

Inquiry submitted 01/24/2014

Response #1:Submitted for consideration.
Response posted 01/27/2014


Response #2:See response to Bidder Inquiry No. 23 above.
Response posted 01/27/2014




Inquiry #30: To what extent do the existing Bridge foundation piles need to be demolished?
Inquiry submitted 01/24/2014

Response #1:Submitted for consideration.
Response posted 01/27/2014


Response #2:Paragraph 4 of Section 15-4.01C(3)(a) General of the Standard Specifications states "Remove piling, piers, abutments, and pedestals to 1 foot below the ground line or 3 feet below finished grade, whichever is lower. Bid per the current contract documents.
Response posted 01/28/2014




Inquiry #31: The response we received for Bidder Inquiry #20 was "Response #2:1) RSS section 6-2.05C does not exempt temporary work items from "Buy America" requirements."

We received the following response from Contract #04-0A7104 Bidder Inquiry for the same question:

Inquiry #36: Will the Buy America material requirement for steel products apply to the Temporary Fence (Type CL-6) since this is not a permanent structure?

Response #2:No. Buy America applies only to iron and steel products required to be permanently incorporated into a Federal-aid construction project. Temporary use means that the contract specifications provide that the iron and steel products used on the project either must be removed at the end of the project or may be removed at the contractor's convenience.

Response posted 01/16/2014

**Since we have received conflicting information for the same Bidder Inquirey on two seperate projects in District 4, we are asking for you to review both responses recieved regarding the Buy America requirement and clarify if the Buy America material requirement will apply to temporary fences and gates.


Inquiry submitted 01/27/2014

Response #1:Submitted for consideration.
Response posted 01/27/2014


Response #2:Temporary items are exempt from Buy America requirements.
Response posted 01/27/2014






The information provided in the responses to bidder inquiries is not a waiver of Section 2-1.03, “Examination of Plans, Specifications, Contract, and Site of Work,” 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.