BIDDER'S INQUIRIES & RESPONSES
DISTRICT 11 CONSTRUCTION


CONTRACT NO: 11-2T1814
ROUTE / PM 11-SD-54,805-1.8,5.5/9.4
LOCATION In San Diego County In Chula Vista And National City On Route 54 At 805/54 Separation And On Route 805 From 0.4 Mile North Of Palomar Street Overcrossing To 0.6 Mile North Of Route 805/54 Separation.
DESCRIPTION Construct North And South Bound Hov Lanes.
CONTRACT TYPE A + B Bidding
ESTIMATE $34,900,000
WORKING DAYS

800

ADVERTISE DATE 02/06/2012
BID OPENING 04/05/2012
FINAL POSTING
04/05/2012@ 07:00

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. However, to allow the Department reasonable time to review and respond, bidders are recommended to send in their inquiries at least four (4) working days prior to the bid opening.   


INFORMATION AVAILABLE



BID ITEMS
 SPECIALS
PLANS
 PLANHOLDERS



ORDERING PROJECT PLANS AND SPECIFICATIONS   

  *DVBE participation incentive up to $250,000 * Cost per set: Bidders: $E-ad, Non-bidders: $E-ad


ADDENDUM




 

BIDDER'S INQUIRY SUBMITTAL FORM


Inquiry No.
Inquiry

   1

  Q:02/14/12
  R:02/15/12
 R:02/16/12

Plan Sheet / Specification Reference= Item 105, Column Casings, 585/635, 604/635, and 624/635

Question = This is a request that you provide the as-built column heights for all of the columns that receive column casings. In reviewing the contract drawings these heights are not provided as they typically are on column casing retrofits, nor are the bottom of footing elevations for each column that has a casing.      

  • Your inquiry has been received and being reviewed. Thanks for your patience.
  • The requested information is available from existing bridge as-built  drawings. Attention is directed to Section 5-1.12, "SUPPLEMENTAL PROJECT INFORMATION" (page 25) of the contract Special Provisions and to Section 2-1.03B, "Supplemental Project Information" (page 13 of 290) of the Amendments to the Standard Specifications dated May 2006.    

   2

  Q:02/14/12
R:02/15/12
R: 03/26/12

Plan Sheet / Specification Reference= 70,76, Page Q-3(sheet 357), L-1(sheet 7), PS-1(sheet 23)

Question=Page Q-3 (sheet 357) gives a structural section summary of quantities, this list calls out 545.46 CY of JPCP between station 316+00 and 323+83.37 on the southbound side. On both the Layout Drawings (L-1, sheet 7) and the profile drawings (PS-1, sheet 23) the work is called out to begin at station 323+00 and the first section to end at station 323+72.47 in the southbound direction. Please provide clarification as to what stationing the work is to begin and the corresponding quantities for the first section of work.

  • Your inquiry has been received and being reviewed. Thanks for your patience.
  • Please refer to Addendum #1
                 3

         Q:02/21/12
         R:02/23/12
         R:03/26/12

Plan Sheet / Specification Reference= Temp Sidewalk and Ramps per Sheet 252, ramps have Detectable Warning  Surfaces 3 x 4 , various locations Bonita Road, Sweetwater Rd, and Eucli70,76, Page Q-3(sheet 357), L-1(sheet 7), PS-1(sheet 23)

Question= In which bid item is the cost to provide & install Detectable Warning surfaces on ramps constructed under PLACE HMA (Miscellaneous areas)to be paid for?

  • Your inquiry has been received and being reviewed. Thanks for your patience.
  • Please refer to Addendum #1
                4

         Q:02/21/12
         R:02/23/12
         R:03/26/12

Plan Sheet / Specification Reference= Item 137, Minor Concrete (Curb and Sidewalk) Plan Sheet 356 Summary of quantities.

Question=  Quantities listed on Q sheet appear incorrect for both the curb and the sidewalk.  For Type A2-6 Curb, CALTRANS standard plan indicates .05903 CY per LF, this does not correspond with quantities shown for the Curb.  Sidewalk quantities also do not calc correctly.  Example # 1 26 LF x 5' x 4" thick should be 1.59 CY, chart indicates 4.81.  The last one on the chart plan indicates a length of 522 LF, which would equate to 31.9 CY, chart indicates 4.81 CY.  Please clarify.

  •  Your inquiry has been received and being reviewed. Thanks for your patience.
  • Please refer to Addendum #1
               5

         Q:03/02/12
         R:03/26/12

Plan Sheet / Specification Reference= Var

Question= We have the following questions in regards to the captioned project:
1. Naples St UC – Sht 520 of 635 – Sect A-A – Please review and correct the dimensions of the Abutment seat.

  • Please refer to Addendum #1 for question #1

2. Bonita Rd UC – Sht 558 of 635 – Abutment Layout – Plan View – Please provide the dimensions of the abutment footing.
3. Euclid Ave UC – Sht 619 of 635 - Abutment Layout – Plan View – Please provide the dimensions of the abutment footing.
4. Are the skew angles, where applicable, available for the bridge structures? Please advise.

  • For questions #2, 3 & 4: The existing footing dimensions are provided in the as-built drawings.  Please refer to Bidder's Inquiry #1 above for obtaining the as-built drawings.


  6

  Q:03/13/12
R:03/16/12

Plan Sheet / Specification Reference= Item # 105, Column casings

Question= Please provide information on how to obtain As-Built Drawings for the bridge columns.

Also there is no information on what columns will require casings. a Column table will be helpful.

On sheet 604 (steel column casing), under note #5, it says 1/4" min for thick for casings with a 4'-4" dia or less.

These column casings are not round at the base measure 4'-4" X 10'-4".
Are these column casings to be considered as 4'-4" DIA and hence apply 1/4" thick casing.

  • Please refer to the response to Bidder inquiry No. 1 above  for  information on how to obtain As-Built Drawings for the bridge columns.
  • All existing columns for Route 805/54 Separation (Br. No. 57-0746), Sweetwater Road UC (Br. No. 57-0639) and Euclid Avenue UC (Br. No. 57-0640) are to be retrofit with column casings as shown on General Plan sheets 576, 595 and 615, respectively.
  • No.  The 4'-4" diameter reference applies to circular casings.  Please refer to note #5 on sheets 585, 604 and 624.

 

  7

  Q:03/14/12
R:03/26/12

Plan Sheet / Specification Reference= E-39

Question= On plan sheet E-39 there is a symbol calling for a 200W HPS Soffit fixture however this is not a standard symbol so i was wondering if you could provide more detail about this fixture or perhaps a cut sheet. We are trying to find out what this fixture is and how it should be installed. The plans are also calling for a 400W fixture.

On plan sheet E-38 there is a ES-90 detail which is not explained on the plans or in the specs. So again we were wondering if you could provide more information on this detail.

  • Please refer to Addendum #1
 
               8

       Q:03/26/12
       R:03/30/12

 Plan Sheet / Specification Reference=HP 14 X 89 Driven Piling, Sheet Number 577

Question= Note 2 on pile data table indicates that a pile lug is required for the HP 10 x 57 piles. Piles on this structure only include HP 14 x 89 piles. Please indicate if  pile lugs are required for the HP 14 x 89 piles.

  • Please bid per current contract bid documents

  9

  Q:03/29/12
R:03/30/12

Plan Sheet / Specification Reference= 122-125, Pipe Culverts, 83-170: Piple layout drawings

Question= In locations where new pipe culverts are installed in existing paved shoulders that are not reconstructed with new pavement sections; under which bid items does the pavement patching get measured and paid?
  • The hot mix asphalt (type A) placed for reconstruction of existing asphalt concrete pavement will be compensated under contract item #70, "Hot Mix Asphalt (Type A)." The hot mix asphalt (type A) placed for reconstruction of existing asphalt concrete pavement will be compensated under contract item #70, "Hot Mix Asphalt (Type A)." Please bid per current contract bid documents."    

  10

  Q:04/02/12
R:04/03/12

Plan Sheet / Specification Reference=

Question=
1-Addendum # 1, issued plan sheets Q-4 and Q-5 with an added Item of work and quantity, "Conc Barrier Elect Type 60GC". Layout plan sheets, construction detail sheets and current bid items currently do not define this work. Please define prior to bid.?

2-Do you want 1/2" or 3/8" cover plates for Type 60 R-4 Barrier.

3- What is the required Vertical Ht. for the 1/2" or 3/8" Cover plate on the low paving side shown in Sect G-G on plan sheet 51 of 635.

  • 1. Please refer to Construction Detail sheet C-9 or sheet 47 of 635. This sheet has the Electrolier/Concrete Barrier Type 60 GC Detail. A new Bid item "023010 Electrolier/Concrete Barrier (Type 60GC)" was added at the end of the Bid Item List (see revised addendum list). The locations are shown on the quantity table and on the layout sheets.
  • 2. Please use a 1/2" cover plate for the Type 60 R-4 Barrier
  • 3. Please use a 56" minimum height.

 


 
              11

       Q:04/03/12
       R:04/04/12

 Plan Sheet / Specification Reference= Special Provision

Question=

1- Ref Special Provision Section 10-1.69- Please confirm the apparent requirements to paint new Light Weight and Truss Type sign structures.

  • Please bid per the current contract bid documents

2- 1- Ref Special Provision Section 10-1.65 specifically " Measurement and Payment- Wher and what items require Epoxy Coated or galvanized reinforcing steel for this contract.

  • Only the items called on the plans as Epoxy Coated or Galvanized need to be Epoxy Coated or Galvanized per Section 10-1.65 "REINFORCEMENT" of the Special Provisions. Please bid per the current contract bid documents.


           
             12

       Q:04/03/12
       R:04/04/12

 Plan Sheet / Specification Reference= Special ProvisionPlan Sheet / Specification Reference=134 Slope Paving (masonry block) Bid Item

Question= The bid item quantity for the slope paving (masonry block) appears to be less than the actual slope length quantity of 50,000 sf. Please verify.
  • The quantity is correct. Please bid per the current contract bid documents.
           
             13

       Q:04/03/12
       R:04/04/12

 Plan Sheet / Specification Reference=

Question=

1- Ref Electrical Plan Sheets E-1 to E-42. Your requirements seem to call for electrical conduit and pull boxes in some of the Type 60 Series Concrete Barrier. There are no Standard Details in Type 60 Series Barrier that accomodate reinforcing steel elimination or barrier dimensional details. Request that these details be provided by addendum to all bidders, prior to bid date.

  • Please bid per the current contract bid documents.

2-Ref plan Sheet 548- With revisions per Addendum # 1, please confirm that the details for Type 60 GA MOD shown on Sheet 548 no longer apply.

  • Sheet 548 was not modified per Addendum 1. Please bid per the current contract documents.

 

            14
       Q:04/04/12
       R:04/04/12
 

Plan Sheet / Specification Reference=

Question= 1-Ref Electrical PLANS E-2 TO E-5, E-16 TO E-17. Theses details call for approximately 22 ea."Type 15 and 15D (Electroliers) mounted on top of barrier-see construction details, or for foundation see construction details"
The Type 60GC, 60G and 60C shown on current lay out plans , including Addendum # 1 do not accomodate this electrical requirement. please clarify before the bid by addendum to all plan holders.

  • Please bid per the current contract bid documents.
              15
       Q:04/04/12
       R:04/05/12

Plan Sheet / Specification Reference=

Question=1- Ref Plan Sheets 365,373 and layout plans L-5 to L-9-Your retaining wall plans show undefined work at retaining walls that include a non standard barrier type with 1/2" galvn steel cover plates. This work is not currently included in contract items of work or defined in the special provisions. Please confirm that this ambiguity will be handled by CCO after contract award.

  • Please bid per the current contract bid documents.

 


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