BIDDER'S INQUIRIES & RESPONSES
DISTRICT 11 CONSTRUCTION

 
CONTRACT NO: 11-2T0914
ROUTE / KP 11-SD-15-R16.9/M24.1
LOCATION In San Diego County In San Diego From 0.1 Km South Of Route 52/15 Separation To Carroll Canyon Road Overcrossing.
DESCRIPTION Construct Unit One Of The Managed Lanes - South Segment
ESTIMATE $ 68,000,000
WORKING DAYS 600
ADVERTISE DATE 03/03/2008
BID OPENING 05/01/2008
FINAL POSTING 04/30/08   @  1625

BID RESULTS

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 Wednesday prior to the bid opening.
INFORMATION AVAILABLE
 

BID ITEMS
 SPECIALS
PLANS
 PLANHOLDERS

X-SECTIONS
3/12/08



ADDENDUM


ADDENDUM #1
Posted  04/16/08
 
 
 
 

BIDDER'S INQUIRY SUBMITTAL FORM


Inquiry No.
Inquiry

Q:03/10/08
R:03/12/08

Plan Sheet / Specification Reference=  Special Provision Section 5-1.17 Project Information

Question= Special Provision Section 5-1.17 Project Information page 204, states that cross sections are available in electronic copy. When will the cross sections be available and in what format?

  • Cross sections are available as of 03/12/08 and can be downloaded for printing from the link above at any local printing firm or on your own printing equipment:

     MESA REPROGRAPHICS 
     5560 Ruffin Road Suite 5 
     San Diego, CA 92123 
     (858) 541-1500    FAX (858) 278-0558 
     e-mail to  plot@mesareprographics.com San Diego, CA 92123



Q:03/25/08
R:04/23/08

Plan Sheet / Specification Reference=Amendments to 1999 Standard Plans,
Section 39-1, pages 43 - 84, as applicable to Asphalt 


Question= Does the amendments, pages 43 - 84, including mix designs, prepaving conference, and QC/QA requirements, apply to the Asphalt Treated Permeable Base, AC (Type A), or ACB (Type A)to be installed in this Contract?

  • Please refer to Addendum #1.

Q:04/04/08
R:04/23/08

Plan Sheet / Specification Reference=10-1.54, Asphalt Concrete, Pages:342-350

Question= Is this a QC/QA project (does QC/QA requirements apply to this project)?
Does test strip requirement apply to Treated Permeable Base too?

  • Please refer to Addendum #1.

 4 

Q:04/07/08
R:04/29/08

Plan Sheet / Specification Reference=Item# 117, 121; Bar Reinforcing Steel (CIP Wall Face), Shotecrete; Plan Sheets 785, 787, 807, 829; Special Provision 10-1.66, 10-1.67

Question= Per plan sheet 785, 787, 807, 829 there is bar reniforcing steel and reinforcing mesh located in the shotcrete sections. Is all bar reinforcing steel and reinforcing mesh covered in bid item 117 bar reinforcing steel (CIP Wall Face) for the shotcrete section?

  • Yes. Please refer to the Standard Specifications, Section 52 "Reinforcement," subsection 52-1.11 "Payment."

Q:04/08/08
R:04/23/08

Plan Sheet / Specification Reference=Item #40, 59, 60, 61.  Remove Slope Paving and Bridge Removal Location C, D, E.  Special Provision Section "Bridge Removal" pages 313 and 314.

Question= Special Provisions page 314 describes Bridge Removal for Locations C, D, and E (items 59, 60, and 61) as "Removal of portions of existing slope paving".  These locations match the locations shown on the Layout drawings for "Remove slope paving".  Please clarify whether the removal of existing slope paving will be paid for in bid items 59, 60, and 61 or in bid item 40.

  •  Removal of Existing Slope Paving will be paid under the "Bridge Removal (Portion) C, D & E" Items.

 6

Q:04/09/08
R:04/23/08

Plan Sheet / Specification Reference=Section 39 Hot Mix Asphalt, pages 43-84 and 10-1.54 Asphalt Concrete, pages 342-350

Question= Is there any moisture susceptibility (moisture damage) requirement for this project? Is TSR testing required (if it is, what the required TSR value is?)?

  • Please refer to Addendum #1.

  7

Q:04/11/08
R:04/17/08

Plan Sheet / Specification Reference=

Question= CAN NOT FIND DETAILS FOR RETAINING WALLS ML202, ML203, ML205, AND ML239L.


ARE THEY PART OF THIS CONTRACT?

  • Please refer to the notes on sheets R-15, R-24, R-27 & R-30 for the location of the wall details.
8

Q:04/16/08
R:04/23/08

Plan Sheet / Specification Reference= 187-Concrete Barrier; 186 - Concrete Barrier, Type 60SC

Question= Ref bid Item 187 Description, and Plan Sheet 581 (Q-5)- Please confirm that Bid Item 187 is " Concrete Barrier Type 60 GC Modified"
2- Have reviewed the available " Design Study Only" cross sections but can't locate any information for " SRA 2A" line, Sta 201+54 to 202+23,18.4m Rt. or "ML" Line Sta 215+54 to 215+76 @ 43.6 m LT, or  "ML" Line Sta 224+90 to 225+30 @ 43.3 m LT. Are " Design Study Only" cross sections for these areas available at this time? 

  • Bid Item 187 "Concrete Barrier (Type GC MODIFIED)" is listed on Sheet Q-5 as "Type 60GC Mod"
    Sta 201+54 to 202+23 "SR2A" Lt see additional set of cross sections posted ("SR2A")
    Sta 215+54 to 215+76 "ML" Lt see page 177 of the original "cross sections" file posted
    Sta 224+90 to 225+30 "ML" Lt see page 195 of the original "cross sections" file posted 


9

Q:04/16/08
R:04/23/08

Plan Sheet / Specification Reference= Addendum #1

Question= The fourth paragraph of Addendum #1 states that the entire subsection "AMENDMENTS TO JULY 1999 STANDARD SPECIFICATIONS" is revised to read as attached. The addendum posted on the website does not include the revised subsection. Will the revised subsection be mailed to all plan holders?

  • Please refer to Addendum #1.

10

Q:04/16/08
R:04/23/08

Plan Sheet / Specification Reference= Item #38 - Remove Sign Structure, Plan sheet #576

Question= Plan sheet 576 (SQ-13) indicates that Sign No. 16E and 16F are part of the 16 each Remove Sign Structure for bid item #38 yet the "Remarks" column on plan sheet 576 for Sign No. 16E and 16F indicates "Remove by Others". Please clarify whether the Contractor is to remove these sign structures?

  • Sign 16E and 16F will be removed by contractor and paid under Bid Item #38.

11

Q:04/17/08
R:04/23/08

Plan Sheet / Specification Reference=Bid quantities for Asphalt items.

Question= Our takeoff quantity for Type A asphalt is significantly lower than bid quantity, while qty for AC Base and ATPB is significantly higher.  For ATPB takeoff qty by sheet is consistently at least 134% of qty indicated on quantity sheets.  Since Q Sheets are not broke down by specific lines/areas
as normal, just by sheet, cannot find discrepancy.  Is it possible Caltrans used incorrect structural section thickness in quantity calcs, and that bid quantities are substantially incorrect?

  • The quantities have been verified, please bid as shown on plans.

12

Q:04/17/08
R:04/23/08

Plan Sheet / Specification Reference=Item 45- Relocate Sign Str

Question= 1- Ref Bid Item 45- Provide a Special Provision and Clear Details of what you require for this work.

  • Sign 9A will be paid as "Remove Sign Structure"(Bid Item #38).

13

Q:04/18/08
R:04/23/08

Plan Sheet / Specification Reference=ITEM 107 STRUCTURAL CONCRETE BRIDGE

Question= PLEASE IDENTIFY STAGE AND TRAFFIC PLAN FOR CONSTRUCTION OF BENT 3 AT POMERADO ROAD OC.

  • Please refer to Stage 4 of the Stage Constructions & Traffic Handling Plans.

14

Q:04/25/08
R:04/25/08

Plan Sheet / Specification Reference= Additional posted cross sections per answer to Bidders Inquiry No. 8

Question= Where do we find Sta 201+54 to 202+23 "SR2A" Lt see additional set of cross sections posted ("SR2A")?

  • Please refer to the link for ADDITIONAL X-Sections  posted above.

15

Q:04/25/08
R:04/29/08

Plan Sheet / Specification Reference= 75, Soil Nail Assembly, 791 and 810, 10-1.40 pg.323

Question= Plan sheets 791 and 810 illustrates a 1.05m minimum pregrouted corrugated plastic sheathing with the remainder of the soil nail epoxy coated.  The special provisions state the soil nail shall be a reinforcing bar encapsulated full length in a grouted corrugated plastic sheathing.  Does the contractor have the option of using either corrosion protection method?

  • Please bid per the current contract documents.

16

Q:04/30/08
R:04/30/08

Plan Sheet / Specification Reference= Var. Items

Question= Q1 -
High Light Electric, Inc. ("HLE") intends to submit a bid to perform that certain scope of work on the above-referenced project set forth in Bid Item Nos. 202 – 227.  HLE's typical composite crews on such projects include laborers, operating engineers and electricians.  Daily work assignments are made based on HLE's past practice and what is believed to be the prevailing practice in Southern California.
1.         Does the owner maintain intend to impose, or enforce any pre-established work classifications, groups, or jurisdictional assignments for laborers, operating engineers and/or electricians specific to the Bid Item work performed on the Project?
2.         During the performance of the work, do the owner's inspectors direct the contractor as to which crafts must perform specific Bid Items of work on the Project?
3.         Is there any restriction on a contractor's employee performing work covered by more than one DIR prevailing wage determination so long as he is paid the prevailing wage rate applicable to the particular work he is performing at that time?

  • Refer to the Standard Specifications, particularly Section 7 and Section 8.

    Q2 -
    SP Page 424 Item #8 calls for Location TMS Location #2; but, schedule shows TMS Loc #1.  Which is correct?
  • Location 2 is correct.

    Q3 -
    Most Schedules in pages 419 to 429 of the Special Provisions indicate conduit installation methods in general; if per same Special Provisions Section 10-3.08 all conduit is to be "type 3" as such with default installation method being trenching in soil unless otherwise noted, correct?
  • Correct, the default installation method should be trenching in soil unless otherwise noted.

 


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