BIDDER'S INQUIRIES & RESPONSES
DISTRICT 11 CONSTRUCTION


CONTRACT NO: 11-262004
ROUTE / PM 11-SD-75-11.0/17.4
LOCATION In San Diego County In Imperial Beach And Coronado From Rainbow Drive To the naval Amphibious Base -gate 4.
DESCRIPTION Grind Concrete Pavement, Rehabilitate AC Surface With RHMA.
ESTIMATE $1,880,000
WORKING DAYS

95

ADVERTISE DATE 10/31/2011
BID OPENING 12/08/2011
FINAL POSTING
12/05/2011@ 14:00

Bid Summary

The Caltrans District 11 Office is located at 4050 Taylor Street, San Diego, CA 92110. The District 11 Duty Senior telephone number is (619) 688-6635. Please submit all inquiries in the proper format by fax to (619) 688-6988 or e-mail to:
Duty_Senior_Const_District11@dot.ca.gov.
The responses to bidder' inquiries, unless incorporated into a formal addenda to the contract, are not a part of the contract and are provided for the bidder's convenience only. In some instances, the question and answer may represent a summary of the matters discussed rather than a word-for-word recitation. The responses may be considered along with all other information furnished to prospective bidders for the purpose of bidding on the project. The availability or use of information provided in the responses to bidder' inquiries is not to be construed in any way as a waiver of the provisions of Section 2-1.03 of the Standard Specifications or any other provision of the contract, the plans, Standard Specifications or Special Provisions, nor to excuse the contractor from full compliance with those contract requirements. Bidders are cautioned that subsequent responses or contract addenda may affect or vary a response previously given.
Caltrans District 11 Construction Department has developed this method of answering Bidder's Inquiries to better serve the needs of the Contractors who bid on our Projects. Caltrans District 11 Construction Department will post all of the questions submitted by any of the contractors that are registered Planholders for that Contract, but reserves the right to not answer any questions deemed unsatisfactory for public viewing.
The BIDDER'S INQUIRIES & RESPONSES will be updated continuously and all attempts will be made to do the final posting by 15:00 on the day prior to the bid opening.


INFORMATION AVAILABLE



BID ITEMS
 SPECIALS
PLANS
 PLANHOLDERS
 



ORDERING PROJECT PLANS AND SPECIFICATIONS   

Cost per set: Bidders: $E-ad, Non-bidders: $E-ad


ADDENDUM



 

BIDDER'S INQUIRY SUBMITTAL FORM


Inquiry No.
Inquiry

   1

  Q:11/04/11
R:11/10/11
R:11/15/11

Plan Sheet / Specification Reference=Sheet X-1

Question=SHEET X-1, suggests that there is to be cold planing of the existing AC pavement and repaving with RHMA, yet there is no bid item "COLD PLANE EXISTING AC PAVEMENT" as is normal procedure in this district.  Also, sheet X-1 clearly indicates removal of AC Dike and there in no bid item for that activity as is normal procedure in this district.
Question=Is there to be cold planing?  Is there to be a bid item for cold planing?  Evidently, there will be AC dike removal, will there be a bid item for AC dike removal?

  •  Your inquiry has been received and is being reviewed. Thank you for your patience.
  • Removal of existing AC pavement and dike is part of roadway excavation. Please bid per current contract documents.
 

                       2

           Q:12/01/11
           R:12/02/11

       


 Plan Sheet / Specification Reference=Sheet X-1=Bid Item 16 Tack Coat, Plan Sheet 2, Typical Cross Sections X-1

Question=Plan sheet X-1 indicates that existing AC is equal to the new RAC depth.  Therefore the "Roadway Excavation" (Cold Planning) will expose the existing base.  In the traveled way areas, the existing base is shown to be CTB, and therefore we understand the application of a tack coat.  However the shoulder areas indicate aggregate base will be exposed, which normally does not require a tack coat.  The tack coat quantities on Q sheets indicate shoulder areas are to receive tack.  Please clarify if the shoulder areas comprised of aggregate base are to receive tack or just areas in which CTB is exposed.

  • Tack Coat shall not be applied on existing exposed Aggregate Base prior to placing Rubberized Hot Mix Asphalt - (Gap Graded). Quantities of Tack Coat to be measured and paid for shall be made in accordance with the project Specifications.

 

                      3

           Q:12/01/11
           R:12/05/11

       


 Plan Sheet / Specification Reference= Plan sheet 2 Typical Cross Sections and Sheet 4 Construction details, asphalt dike / backfill.

Question= Sheet 2 X-1 Typical Cross Sections does not indicate for the asphalt dike to be backfilled. Sheet 4 C-1 Construction Details / Dike details indicates backfill of dike. There is not a bid item for shoulder backing. Please clarify if the asphalt dike is to be backfilled, and if so, provide any material specifications / requirements.

  • See # 4.
 

                      4

           Q:12/05/11
           R:12/05/11

       


 Plan Sheet / Specification Reference= Plan sheet 2 Typical Cross Sections and Sheet 4 Construction details, asphalt dike / backfill.


Question= I submitted this question last week but has not been posted / clarified. I believe this is a significant question and request clarification. Sheet 2 X-1 Typical Cross Sections does not indicate for the asphalt dike to be backfilled. Sheet 4 C-1 Construction Details / Dike details indicates backfill of dike. There is not a bid item for shoulder backing. Please clarify if the asphalt dike is to be backfilled, and if so, provide any material specifications / requirements.

  • No shoulder backing. For Dike Details see Standard Plan A87B Note 4.
   

 


OTHER LINKS OF INTEREST

DISTRICT 11 CONSTRUCTION BIDDER'S INQUIRIES & RESPONSES
DISTRICT 11 HOMEPAGE
CALTRANS OFFICE ENGINEER: Contract Advertisement, Special Provisions, Plan Holders, Contract Awards, etc.
DEPARTMENT OF TRANSPORTATION