BIDDER'S INQUIRIES & RESPONSES
DISTRICT 11 CONSTRUCTION
CONTRACT NO:  11-237074
ROUTE / KP 11-SD-8-R77.8/R79.3
LOCATION In San Diego County At Buckman Springs From 0.8 Km West Of Buckman Springs Road Undercrossing To 0.7 Km East Of Buckman Springs Road Undercrossing. 
DESCRIPTION Remove Ramp Surfacing, Ac And Base; Asphalt Concrete To Be Placed.
ESTIMATE $ 660,000
ADVERTISE DATE 03/21/2005
BID OPENING 04/14/2005
FINAL POSTING 04/14/05    @   15:30

BID RESULTS
1
HAZARD CONSTRUCTION CO $    806,670.00
2
HANSON SJH CONSTRUCTION CO $    828,181.51
3
DAILEY CCAC CONSTRUCTION CO $    950,137.00
4
GRANITE CONSTRUCTION CO $ 1,061,041.00

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:03/29/05 
  R:04/04/05
 Plan Sheet / Specification Reference=Plan Sheet / Specification Reference=Item # 11, Asphalt Concrete, Special Provision Section 10-1.18

Question=We question the applicability of the tapered notched wedge spec and joint compaction requirement on a ramp rehab job. In the hidden text on your web site for standard special provisions, spec writers are instructed "The tapered notched wedge option for longitudinal joints may be allowed for divided highways with asphalt concrete thicker than 45mm. This would indicate that they don't expect it to be used on ramp mill and paves.We request that this spec be eliminated from the contract by addenda. 

  • The contract does not mandate the use of "tapered notched wedge" and is an option to the contractor, where applicable. Therefore, elimination of this spec. from the contract is incosequential. 
2
  Q:03/30/05 
  R:04/05/05
Plan Sheet / Specification Reference=Item # 21 Pavement Marker ( Retroreflective-Recessed ), Plan Sheet # PD-2 (Smmary )..  Special Provision Section 10-1.25 Pavement Markers ... 

Question=Has the spec. for adhesive changed? It appears somewhat different than any I've seen before and is not the same as shown in my Std. Spec. book.. I am not aware of any new material being required, But Thought I should check.
 

  • The adhesive for this contract is not the same as required per the Standard Specifications dated July 1999. The adhesive required under this contract is for Pavement Markers-Recessed. 


 

3
  Q:04/06/05 
      R:04/08/05
 

 

Plan Sheet / Specification Reference=Plan Sheet / Specification Reference=Item # 11, Asphalt Concrete.

Question=With respect to your answer to inquiry #1, since you say the joint spec is optional, is the compaction spec for the joints optional also? They seems to be tied together and niether one is applicable for this type of work. 
 

  • Should the "tapered notched wedge" apply and the contractor opts to use this method, the compaction test at the"tapered notched wedge" is mandatory.
 
4
  Q:04/07/05 
     R:04/07/05
Plan Sheet / Specification Reference=Plan Sheet / Specification Reference=Item # 8, Excavation, Subgrade requirements.

Question=Removal depth for new asphalt section is deeper than existing asphalt and will require removal of portion of aggregate base. what grading and / or compaction requirements and tests will be required prior to placement of new asphalt? If Caltrans performs compaction tests, will results be available onsite immediately?

  • This contract does not require placement of Aggregate base. Therefore, aggregate base requirements  do not apply. However, requirements for subgrade as described in  contract documents for Asphalt Concrete do apply.
5
  Q:04/07/05 
  R:04/08/05
Plan Sheet / Specification Reference=Item 8 and 11

Question=I am confused by your response to question #4.  Is Caltrans going
to perform compaction testing of exposed grade after removal of existing
asphalt and portion of Aggregate Base and prior to installation of new
asphalt?
 

  • Should the method of removal of the AC and partial Base stratum, chosen by the contractor not cause a disturbance to the remaind Base stratum, no compaction test would be required. Should the remained substratum be disturbed, due to the removal method or inattention (Dependant on the extent of the disturbance), it is the responsibility of the contractor to recompact the class II base and test for proper compaction, prior to placement of any AC. Contractor is responsible for quality control and the State quality assurance. 
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