BIDDER'S INQUIRIES & RESPONSES

CONTRACT NO: 11-076304

11-SD-805-13.9/28.2

In San Diego County In Chula Vista, National City And San Diego
From Sweetwater River Bridge To Mission Valley Viaduct.

Grind Portland Cement Concrete Surfacing, Replace Concrete
Pavement And Replace Asphalt Concrete Surfacing.

Advertise Date    08/14/00
Bids Open           10/20/00 AT 11:00 AM

FINAL POSTING

DATE: 10/19/00

TIME: 17:05
            BID RESULTS OF 10/20/00
        1) 6,218,510.00        HAZARD CONSTRUCTION
        2) 6,771,879.00        PAVE-TECH INC
        3) 6,867,545.00        CONE ENGINEERING
        4) 7,249,440.00        PENHALL COMPANY

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.

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 92186-5400. 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.

Caltrans District 11 Construction Department has developed this method of answering Bidders Inquiries to better serve the needs of the Contractors who bid on our Projects.
The BIDDER'S INQUIRIES & RESPONSES will be updated continuously with the last posting no later than 15:00 on Wednesday prior to the bid opening.
Caltrans District 11 Construction Department will post all of the questions submitted by any of the registered Planholders for that Contract, but reserves the right not to answer any questions deemed unsatisfactory for public viewing.

BIDDER'S INQUIRY FORMAT


 

 ADDENDUM 1
09/07/00
 ADDENDUM 2
09/20/00
 ADDENDUM 3
10/10/00
 ADDENDUM 4
10/19/00

 
Inquiry No.
Inquiry
 1
Plan Sheet / Specification Reference=SPECIAL PROVISIONS SECTION 10-1.08 MAINTAINING TRAFFIC, LANE CLOSURE CHARTS

There are 20 charts. All of them deal with ramp closures. What are the provisions for closing the mainline?

  • See Addendum No. 1 and Addendum No. 3.
2
Plan Sheet / Specification Reference=SPECIAL PROVISIONS SECTION 10-1.22, THE LAST PARAGRAPH ON PAGE 95. 

States, in part: "The contract price paid per meter for seal pavement joint shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work involved in sealing pavement joints, complete, including sawing and preparing the joints in the concrete pavement, furnishing and installing backer rod, REPAIRING AND PATCHING SPALLED OR RAVELED SAWED JOINTS, AND REPLACING REJECTED JOINTS, AS SHOWN ON THE PLANS, as specified in the Standard Specifications and these special provisions, and AS DIRECTED BY THE ENGINEER. 

How can we bid something as potentially extensive as repairing spalled joints for a fixed price when the amount of work is AS DIRECTED BY THE ENGINEER? Past jobs have done this work at force account as it is so indeterminate.  Presently, contract #11-229114, bidding 9/28/2000 has bid items for repair by the square meter and furnish polyester concrete by the cubic meter, with 305 instances defined in the plans with dimensions and location by lane and station.  How about some consistency?

  • For retrofit of existing joints the interpretation of the State is to use the detail shown on Standard Plan A35C TYPE DSC for both longitudinal and transverse weakened plane joints, the note below the TYPE DSC which refers to only transverse joints can be ignored for existing pavement. 
  • REPAIRING AND PATCHING SPALLED OR RAVELED SAWED JOINTS, AND REPLACING REJECTED JOINTS, is referring to 7-1.11 Preservation of Property in regards to damage done due to the contractors operations. Any existing areas to repair or patch spalled concrete that deviates from Standard Plan A35C TYPE DSC will be handled in accordance with Section 4-1.03 of the Standard Specifications. 
3
Plan Sheet / Specification Reference=plan sheet C-4, section B-B

Is that a detail showing the existing or the planned (new)?

  • The detail is of planned new pavement.
 4
Plan Sheet / Specification Reference=SPECIAL PROVISIONS SECTION 10-1.22 SEAL JOINT, 
page 94 and 95

It says that grooves shall be cut, to the dimensions shown on the plans. The only place I can find any mention of joint width is on the California Standard Plan A35A. Is this the spec that we should use?

  • See question 2. 
5
Plan Sheet / Specification Reference=SPECIAL PROVISIONS SECTION 10-1.22 SEAL JOINT, 
page 94 and 95

It says that grooves shall be cut, to the dimensions shown on the plans. The only place I can find any mention of joint width is on the California Standard Plan A35A. Some of the longitudinal joints have been constructed with an insert of some type.  Is it your intention to saw and seal these joints also?

  • Yes, the existing joints will be sawed and sealed. See question 2. 
 6
Plan Sheet / Specification Reference=item#19, replace pccp, page 48 of the plans(Q-4), it gives the length, width...ect.

Per your cross section - is it for the bidder to assume that all of the pccp to be replaced is in the far right hand lane(s). I understand the long sections are shown on page 6 (C-4).

 7
Plan Sheet / Specification Reference=Addendum #1 - traffic charts #21 and #22.

Are you sure that these are the right charts?

  • See Addendum No. 3.
 8
Plan Sheet / Specification Reference=item #19 replace pccp

The cross section on page 1(X-1) and section A-A on page 6(C-4) in the plans, shows an existing structural section containing 299mm PCC and 137mm CTB = 366mm. Then the section A-A on page 6(C-4) shows "REPLACE EXISTING PCC&CTB WITH 391mm PCC". Does this mean that there should be 25mm of the AS removed also?

  • No, the existing structural section is 391 mm not 366 mm.
 9
Plan Sheet / Specification Reference=item #9 Remove MBGR

Engineers Estimate shows a bid quantity of 610m for item #9. The Q-6 sheet adds to 622m. The definition of compensation for REMOVE MBGR on page 84 and the definition of compensation of CONCRETE STRUCTURE on page 96 of the specials are not consistent. So is the bridge rail removal and salvage paid under Minor Concrete pay item #22 or in item #9? And if the material is to be salvaged, then where, how and when? This type of bridge rail will not be salvaged for this projects reuse.

  • Bid it as you see it. 
10
Plan Sheet / Specification Reference=Special Provisions Section 5-1.04 PUBLIC SAFETY contains the typical requirement that no WORK be performed within 1.8 meters of a traffic lane. Special Provisions Section 10-1.08 MAINTAINING TRAFFIC contains charts delineating "Multilane Lane Requirements" which set forth the requirement that a minimum two lanes of the predominately four lane freeway be kept open at all times(except for four hours which is useless as this is the required cure time). 

It would seem that these two requirements are mutually contradictory as there are slabs to be replaced in the number two and three lanes.  We have been told that the official interpretation of these requirements in this situation is that we are to take a portion (up to two feet) of the adjacent, in-use, traffic lane. We strenuously object to this interpretation as unrealistic and in callous desregard for the safety of our workment, as they would be in grave danger working within two feet of speedy public traffic, separated by nothing more than a traffic cone.  We request that this issue be re-examined and a better solution be achieved that will provide better protection for the workmen.  Pleae don't fall back on the pat answer "bid it the way you see it" as this is not a frivolous issue and deserves more consideration than that.

 11
Plan Sheet / Specification Reference=SUBMISSION OF BID

Is it necessary to acknowledge Addendum 4 if we already submit our bid today?

  • No, it is not necessary to acknowledge the last addendum since it is only to delay opening of the bids. 

OTHER LINKS OF INTEREST

BIDDER'S INQUIRIES & RESPONSES

DEPARTMENT OF TRANSPORTATION

DISTRICT 11 CONSTRUCTION HOMEPAGE

CALTRANS OFFICE ENGINEER: Contract Advertisement, Special provisions, Plan Holders, Contract Awards, etc.