BIDDER'S INQUIRIES & RESPONSES
DISTRICT 11 CONSTRUCTION
CONTRACT NO:  11-262304
ROUTE / KP 11-Imp-86-53.8/54.2
LOCATION In Imperial County About 9.1 Km North Of Westmorland From 1.4 Km North Of Vendel Road To Bannister
Road. 
DESCRIPTION Crack Existing Concrete Pavement And Place Asphalt Concrete Overlay. 
ESTIMATE $ 360,000.00
ADVERTISE DATE 02/10/04
BID OPENING 02/19/04
FINAL POSTING 02/18/04    @   17:40

BID RESULTS
  1 
STANDARD ENGINEERING $ 254,551.50
2
VANCE CORPORATION $ 366,972.40
3
GRANITE CONSTRUCTION $ 389,398.00

The Caltrans District 11 Office is located at 2829 Juan Street, San Diego, CA 92110. The mailing address is P.O. Box 85406, San Diego, CA 92186-5406. 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 Wednesday prior to the bid opening.
INFORMATION AVAILABLE
 
 BID ITEMS
 SPECIALS
PLANS
 PLANHOLDERS
 
       
ADDENDUM

 
 
 
   

BIDDER'S INQUIRY SUBMITTAL FORM
 

Inquiry No.
Inquiry
          1 
   Q:02/17/04
   R:02/18/04
Plan Sheet / Specification Reference=ITEM #21 ANS 22 IMPERMEABLE MEMBRANE SPECIAL PROVISION PAGE 104 AND 105.

Question=1) DOES THE IMPERMEABLE MEMBRANE TYPE B HAVE TO BE COATED WITH TACK AS IT IS 
PLACED IN THE TRENCH,OR IS THS COATING DONE AT THE FACTORY?
2) PARAGRAPH F SAYS EQUIPEMNT SHALL NOT BE OPERATED OR DRIVEN DIRECTLY ON THE
FABRIC.  HOW DOES ONE TACK OR AC PAVE ON THE FABRIC WITH OUT DRIVING ON IT?

  • 1) Section 10-1.22 IMPERMEABLE MEMBRANE of the Special Provision states that the fabric should be impregnated with an asphaltic sealant in sufficient quantity to completely saturate and provide an impermeable barrier. It would be acceptable if this procedure could be done at the factory in a manner that would not compromise the purpose and integrity of the fabric.   2) The Resident Engineer will address the issue of driving on the fabric, during the tack and paving operation. 
          2 
   Q:02/17/04
   R:02/18/04
Plan Sheet / Specification Reference=21.  Impermiable Membrane, Type B

Question=We have found no supplier that can provide the above referenced material for the following reason:  In order to impregnate the asphalt onto the polyproplene/polyester geotextile fabric, the temperature of the asphalt must exceed the melting point of the fabric.

  • The specification does not imply that in order to impregnate the fabric, the temperature of the asphalt sealant should reach the melting temperature of the fabric. Following are some of the web site addresses that should provide you  information on material that could satisfy this contract:
          www.charminarnonwovens.com
          www.mirafi.com
 
 
 
 
 
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