BIDDER'S INQUIRIES & RESPONSES
DISTRICT 11 CONSTRUCTION

THE MANDATORY PREBID MEETING FOR CONTRACT 11-288804 WILL BE ON WEDNESDAY, APRIL 15, 2009 AT THE FOLLOWING LOCATION: 4050 TAYLOR STREET, SAN DIEGO, CA 92110

THE MEETING WILL BE HELD LOCATED IN BUILDING 1, FLOOR 1, ROOM 134 (GALLEGOS CONFERENCE ROOM), FROM 9:00 A.M. - 12:00 P.M.

PLEASE CALL (619) 688-6635 WITH QUESTIONS.


 
CONTRACT NO: 11-288804
ROUTE / KP 11-SD-905-R9.5/R15.0
LOCATION In San Diego County In San Diego From 1.2 Km East Of Route 805/905 Separation To 0.8 Km East Of Britannia Overcrossing
DESCRIPTION Construct New 6 Lane Pcc Freeway.
ESTIMATE $ 81,300,000
WORKING DAYS

990 (Including 250 Working Days Min. Type 2 Plant Establishment)

ADVERTISE DATE 11/17/2008
BID OPENING 01/08/2009     02/05/2009    03/05/2009    03/12/2009    04/09/2009 04/30/2009
FINAL POSTING
04/30/09   @ 06:30

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 Wednesday prior to the bid opening.
INFORMATION AVAILABLE

PREBID
SIGN-IN SHEET

04/15/09
BID ITEMS
 SPECIALS
PLANS
 PLANHOLDERS

ORDERING PROJECT PLANS AND SPECIFICATIONS

ADDENDUM


 
   
 
 

BIDDER'S INQUIRY SUBMITTAL FORM


Inquiry No.
Inquiry

  1

 Q:11/18/08
R:11/19/08
R:03/25/09

Plan Sheet / Specification Reference= Special Provisions Section 5-1.06 Supplemental Project Information page no. 26

Question= Special Provisions Section 5-1.06 Supplemental Project Information page no. 26, states that cross sections are available on this project. When will the electronic cross sections be available to download for our use?

  • Cross sections are available as of 11/19/08 and can be downloaded for printing from the link above at any local printing firm or on your own printing equipment:
  • Updated Cross sections due to the issuance of Addendum 8 are available at the link above.



     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


  2

 Q:11/20/08
R:12/02/08

Plan Sheet / Specification Reference= Items 108-112 Reinforced Concrete Cribwall C7- Page 128 of the Special Provisions 10-1.41

Question=The Specifications call out for the Crib members to colered- Davis "Sandstone"

Does that apply to buried non-exposed block or just to exposed block? 

  • Color only the exposed blocks of the crib wall.

 

  3

 Q:11/24/08
R:12/04/08

Plan Sheet / Specification Reference=Items 108-112 Cribwall. 10-1.41 page 128

Question= Typically with vertical cribwalls front face panels are required to keep soil from spilling. Cribwall Standard Specifications sheet C7e General Notes 9 states."Use of "Front Face Closure Member" shall be required only when specified on project plans or in the Special Provisions."

Did the district intend for Front Face Closure Members to be used in this vertical application? If so, does the buried portion of the face wall need to have closure units?

  • Front face closure member will not be used in the exposed or buried portion of the wall. Please bid per the contract documents.

  4

 Q:11/26/08
R:12/02/08
R:03/30/09

Plan Sheet / Specification Reference=

Question= We downloaded the cross-sections and for the E5 line the sections begin at station 140+00 rather than the beginning of construction at 120+00.  Please clarify. 

  • Additional cross-sections have been added to the X-SECTIONS link.
  • Updated Cross sections due to the issuance of Addendum 8 are available at the link above.

  5

 Q:12/02/08
R:12/22/08

Plan Sheet / Specification Reference= Special Provisions Section Titled "Amendments to the Standard Specificatons"stops on page 424 and appears to be missing several important changes.

Question= Will you be forwarding the missing pages in a future amendment?

  • Please refer to Addendum No.1

  6

 Q:12/02/08
R:12/02/08
R:03/30/09

Plan Sheet / Specification Reference=

Question= Last week we had Mesa Repo download and print the cross-sections. As I mentioned in a prior post missing sheets for the E5 line were discovered.  Since then you have updated the sections (12/2/2008).  What changes have been made, so we only have to print those rather than a complete set?

  • The cross-sections are now separated. Please refer to the updated X-SECTIONS links.
  • Updated Cross sections due to the issuance of Addendum 8 are available at the link above.

  7

 Q:12/02/08
R:12/22/08

Plan Sheet / Specification Reference=

Question= Post layout sheet from station 163+80 to 167+00

  • Please refer to Addendum No. 1

  8

 Q:12/02/08
R:12/22/08

Plan Sheet / Specification Reference= Plan Sheet L-16

Question= Plan Sheet L-16 is missing from the issued plans. When will it be available to download for our use?

  • Please refer to Addendum No. 1

  9

 Q:12/02/08
R:12/23/08

Plan Sheet / Specification Reference=

Question= Please refer to Addendum No. 1 on Contract 11-091824 and specifically to the Section 5-1.31 Load Limitations.
Could the same provision be provided for this Contract?

  • No, please bid per the contract documents.

  10

 Q:12/04/08
R:12/22/08

Plan Sheet / Specification Reference= Item #212 Chain link Fence (Type CL-1.8);Special Provision Section 10-1.99 makes reference to provisions of section 80 and to the use of 25mm mesh fencing,but does not reference vinyl coated fabric. Item# 211 Wildlife Fence references the vinyl coated fabric but does not refer to the mesh size.

Question= Should Item #212 be considered to be galvanized fabric and not vinyl coated? and should Item #211 be 25mm mesh fafric or the standard 2" mesh?

  • Please refer to addendum No. 1

  11

 Q:12/09/08
R:12/11/08

Plan Sheet / Specification Reference= Please refer to Item 5 in Stage 3 page 442 of the plans

Question= The fill material for the abutments to the Heritage U.C. needs to come from excavation west of the embankment at sta 146.

Doesn't the embankment at sta. 146 need to be in Stage 2?

  • Please bid per the contract documents.

  12

 Q:12/09/08
R:12/22/08

Plan Sheet / Specification Reference= We are missing plan sheet L-16

Question= Can you please provide this plan sheet?

  • Please refer to addendum No. 1

  13

 Q:12/09/08
R:12/10/08

Plan Sheet / Specification Reference= 108-112
Concrete Cribwall:
Special Provisions 10-1.67 and 10-1.41 Pages 128 and 180 

Question= In the special provisions for the Geosynthetic Reinforced Embankment- 10-1.41, Reinforced Concrete Crib Members under "Reinforcing Steel" the spec says to conform to ASTM Designation: A615, Grade 60 or A 706.

Under the Concrete Crib Section the spec says to conform to ASTM Designation: A 706.

Can the manufacturer use A615 Grade 60 Steel in the Reinforced Crib Members section 10-1.67?

  • Reinforcing steel can be either A 615 Grade 60, or A 706.

  14

 Q:12/09/08
R:12/10/08
R:03/30/09

Plan Sheet / Specification Reference=

Question= Are there Cross Section for the Earthwork Available?

  • Please refer to the above X-SECTIONS links.
  • Updated Cross sections due to the issuance of Addendum 8 are available at the link above.

Is there a geo-technical report available?

  • Please refer to the above INFORMATION HANDOUT link.

  15

 Q:12/10/08
R:12/18/08

Plan Sheet / Specification Reference= Plan Sheets: U-4, U-20

Question= At what stage will the gas/telephone contractors relocate their utility on Airway Rd?

  • Please refer to plan sheet SC-1.

The gas line could be placed in the same trench as the sanitary sewer.

  • Please bid per the contract documents.

  16

 Q:12/10/08
R:01/21/09

Plan Sheet / Specification Reference= Plan Sheet U-11

Question= Note 3 states, see "utility details plan sheet UD-31A. Where is this plan sheet? Thank you.

  • Please bid per the contract documents.These are unsigned plans for bidding purposes only. Final plans will be submitted as part of Phase I per the special provisions.

  17

 Q:12/15/08
R:12/15/08

Plan Sheet / Specification Reference= Bid Items 108-112 Concrete Cribwall
Standard Specifications for Cribwall C7E

Question= There is a discrepancy between the 2006 Metric and Standard (English) Plan C7E.

The Standard Plan calls for #3 Rebar reinforcing in the "headers" and "stretchers" but the Metric Standard Plan C7E calls for 13mm which is #4.

Will the agency accept #3 reinforcing?

  • No, please bid per the contract documents.

  18

 Q:12/17/08
R:01/12/09

Plan Sheet / Specification Reference= Bid Item 62 Ditch Excavation

Question= In the Drainage Quantities for segment B, Ditch Excavation is only quantified for drainage system B5 on sheet 380 and B12 on sheet 388 for a total of 14 m3, yet the total quantity for segment B on sheet 390 is 77.7 m3.
The Special Provisions do not provide a description or method of pay for ditch exc.
Please list by drainage system and unit the quantity of ditch excavation.

  • The Engineer's estimate of 78 M3 is correct. This quantity is for the flood storage ditch on Sta 154 -155 E-5 Line. Please refer to Section 19-4 "DITCH EXCAVATION," of the Standard Specifications for description and method of payment.

  19

 Q:12/19/08
R:12/24/08

Plan Sheet / Specification Reference=

Question= Due to holidays, can the bid be postponed?

  • Please refer to addendum No. 3 for the new bid opening date.

  20

 Q:12/19/08
R:12/19/08

Plan Sheet / Specification Reference= Item 87, Concrete Pavement, X-20, X-22, X-25

Question= Do the concrete bus pads and the exit ramp termini referenced on the cross sections get paid under the Concrete Pavement Item?

  • Yes

 

  21

 Q:12/19/08
R:12/22/08

Plan Sheet / Specification Reference= Item #81 and #83

Question= Could you please provide the asphalt/base structural section for the new portion of the park and ride lot?

  • Please refer to sheet X-25 of the project plans.

  22

 Q:12/22/08
R:01/28/09

Plan Sheet / Specification Reference= General Conditions

Question=Caltrans has been directed to not award any new work until the budget crisis is resolved. Per direction from Caltrans we (contractors)are being asked to submit bids for work that may not be awarded in the near future. We request that Caltrans postpone this bid so that the low bidder will not be required to extend there bid for an unknown period of time.

  • The Department will continue to open bids on scheduled bid opening dates depending on the budget situation and funding of the contract. The award and/ or approval of certain contracts may be postponed on a case by case basis.

  23

 Q:12/23/08
R:12/23/08

Plan Sheet / Specification Reference=

Question= We are trying to figure out what you mean by your response to questions #7, 8 and 12.
We can not find anything in the posted Addendum #1 showing the plan sheet L-16.

  • To view Addendum No. 1 plan sheets, please click on the 'PLANS' link above.

  24

 Q:12/23/08
R:01/12/09
R:03/04/09

Plan Sheet / Specification Reference= Bid item #47, plan sheet L-14 and Q-32, regarding the concrete removal.

Question= There are no details describing the extent of the concrete removals in this area.
What are the limits of removals? The right-a-way or the whole area?
Where will the removals of the existing structures be paid? 

  • Exact limits of removal will be determined in the field. See quantities for amount of concrete to be removed.
    The existing structures will be removed by others prior to beginning of construction.
  • Refer to Section 10-1.02 regarding removal of existing structure.

  25

 Q:12/24/08
R:01/12/09

Plan Sheet / Specification Reference=

Question= Bid Item No. 64, Item Code 015343: Geosynthetic Reinforced Embankment:
Sheets 611, 612 and 613 of the contract plans present the elevation view of Wall 146. The plans also delineate the beginning and end points for Layout A, B and C which give the type, embedment length, and the elevation relative to the bottom of the wall of the geosynthetic reinforcement. The tables for layouts A, B and C are shown on plan sheets 614, 615 and 617 respectively.
The Layout B table on sheet 615 shows a baseline elevation equal to zero and proceeds up the wall face with type spacing and embedment length to a peak height of 13.6. If as an example you go to plan sheets 612 and 613 you are given the beginning and ending points for Layout B, Stations 146+70 and 147+05 respectively. The maximum height of the for the Layout B envelope is 22 courses times 0.8M / course or 17.6 meters. Table B appears to be 4 meters short if the engineer intends to have geogrid in the top 4 meters of the wall as he did in Layout A. The issue is similar for al four location applied to Layouts B and C.
Please clarify the limits of the Layout Tables.

  • These are unsigned plans for bidding purposes only. Final plans will be submitted as part of Phase II per the special provisions.

 

  26

 Q:12/29/08
R:01/21/09

Plan Sheet / Specification Reference= Plan Sheet UD-1, General Note 2, "all non-circumferentially...must be bonded per sheet UD-10. This plan sheet is not part of the plans.

Question= When will you submit this sheet to the planholders?

  • Please refer to addendum No. 4.

27

 Q:12/31/08
R:01/12/09

Plan Sheet / Specification Reference= Bid Item 42 - Remove Waterline
Plan Sheet U-27

Question= Plan Sheet U-27 depicts the "Waterline Removal Table", referencing line #9 as removing 296 meters. The plan view shows line #9 pointing at two waterlines, totalling 592 meters of removal. What is the correct quantity?

  • Please refer to addendum No. 4.

 28

 Q:01/09/09
R:01/12/09

Plan Sheet / Specification Reference= Item No.11 Item Code 074038 Temporary Drainage Inlet Protection. Plan Sheets 179-185

Question= On the temporary Water Pollution Control Quantities for Segment "A", "B", and "C" the total number for Temporary Drainage Inlet Protection is 140 Inlets. The Legend in the Plans do not specify what type of protection is to be used. On the Temporary Water Pollution Control Details WPCD-1, WPCD-2, WPCD-3 shows Temporary Drainage Inlet Protection (TYPE 3A), (TYPE 3B), (TYPE 4A), (TYPE 4B), and (TYPE 5). How many of each type are there?

  • See Section 10-1.16 TEMPORARY DRAINAGE INLET PROTECTION of the contract special provisions.

 

  29

 Q:01/16/09
R:01/20/09

Plan Sheet / Specification Reference=

Question= The current budget status as well as direction from the state controller is that funding is not available for this project.  There has been discussion of changing the bid date to tentative until funding issues are clarified.  Is this the Department's intention, and if so, when do plan on posting.

  • The Department is not prepared to issue an addendum to postpone the bid opening at this time.

 30

 Q:01/19/09
R:01/27/09

Plan Sheet / Specification Reference=

Question= 11-288804 - can you please push back the bid date...at least two weeks?

  • Please see Addendum NO. 5. (Scroll up).

 31

 Q:01/19/09
R:02/03/09

Plan Sheet / Specification Reference= Item Numbers 7 (TEMPORARY CONCRETE WASHOUT FACILITY) Special Provision Section 10-1.09. Item Number 9 (TEMPORARY CHECK DAM) Special Provision 10-1.11. Item Number 11 (TEMPORARY DRAINAGE INLET PROTECTION) Special Provision 10-1.16 . Item Number 70 (Drainage Inlet Protection ) Special Provision 10-1.50. Item 71 (CHECK DAM) Special Provision 10-1.49.

Question= Gravel-Filled Bags require a nonwoven polypropylene geotextile or polymer material that shall conform to the listed specification requirements. What company manufactures a bag that meets these specifications? Is there a supplier Caltrans uses or recommends?

  • Western Fiber Company and Sacramento Bag Mfg. Co to mention a few. No, Caltrans has no recommendation.

 32

 Q:01/21/09
R:02/05/09
Plan Sheet / Specification Reference= Bid Item #160,#161,#162 - Welded Steel Pipe Casing

Question= Please confirm that linings & coatings for those bid items are per page 340 of your specifications: "pipe casing shall be lined and coated with hot applied coal tar enamel per AWWA C203, Type II. Coating and lining thickness shall be 2.3 mm minimum in the interior. Coating shall be 18.8 mm cement mortar coated on the exterior."

  • The specifications have been confirmed.

 33

 Q:01/21/09
R:02/05/09
Plan Sheet / Specification Reference= Bid items #160,#161&#162  Welded Steel Pipe Casing

Question= We are asking to allow spiral welded pipe for casing for bid items #160,#161&#162

  • Specifications state “…no spiral welded pipe…”.  Please bid per contract document .
 

 34

 Q:01/21/09
R:02/05/09

Plan Sheet / Specification Reference= Bid items #162  Welded Steel Pipe Casing, dwg SS-4

Question= What is the thickness of the 1500 mmm casing ?
  • Thickness is 10mm. 
 

 35

 Q:01/21/09
R:02/05/09
Plan Sheet / Specification Reference=  Bid items #160,#161,#162  Welded Steel Pipe Casing, dwg SS-4 & SS-3

Question= Do you want lap welded joints or butt welded joints for the sewer casing shown on dwgs SS-3 & SS-4 ?
  • This is specified in the contract document.  Please bid accordingly.

 36

 Q:01/21/09
R:04/16/09

Plan Sheet / Specification Reference= Estimated Quantity for Bid items #160 & #161  Welded Steel Pipe Casing, Bid Item List & Dwg.SSQ-1

Question= The bid list & Dwg SSQ-1  have the wrong quantities of casing.
Please revise

  • Please bid per current contract documents

 37

 Q:01/21/09
R:04/15/09
Plan Sheet / Specification Reference= Bid Item #164 - 300 mm water line Bid Item # 165 - 400 mm water line
Bid Item # 166 - 600 mm water line

Question=
What is the design pressure ?
  • On page 337 of the bid contract special provisions, regarding Cement Mortar Lined and Coated (CML&C) steel pipe, the first paragraph states, "The internal operating pressure used for design shall be a minimum of 1.38 MPa or as called for on the plans, whichever is greater."  This is equivalent to 200 PSI. Also please note that the mains to be subject to hydrostatic pressure testing as also mentioned on the specs.

 38

 Q:01/21/09
R:02/05/09
Plan Sheet / Specification Reference= Dwgs: U-24, U-25 & U-27; Bid Item #164, # 165 &  # 166B

Question= What kind of joints do you want for the water line piping ?
  • This is specified in the contract document.  Please bid accordingly.

 39

 Q:01/21/09
R:02/05/09
Plan Sheet / Specification Reference= Bid Item #160,#161,#162 - Welded Steel Pipe Casing

Question= Do you want pressure grout couplings for casing?
  • This is dependent upon situation, as specified in the contract document.  Please bid per contract document.

 40

 Q:01/22/09
R:02/05/09
Plan Sheet / Specification Reference=Dwgs: U-24, U-25 & U-27; Bid Item #164, # 165 &  # 166

Question= Please review and advise the desired thickness for cement mortar lining.
  • This is specified in the contract document.  See Specifications 10-4.03, pg 338.  Please bid accordingly.

 41

 Q:01/22/09
R:02/05/09
Plan Sheet / Specification Reference= Dwgs: U-24, U-25 & U-27; Bid Item #164, # 165 &  # 166

Question= Please confirm that the coating required for the water lines is Tape coating and Rock shield as specified on page 340
  • The specifications have been confirmed.

 42

 Q:01/22/09
R:04/16/09
Plan Sheet / Specification Reference= Water Pipeline: Dwg U-25 & U-24

Question= On Dwg U-25 plan view the water line is called out as 600 mm CMLCS Water and on the legend is shown CML&TC=Cement Mortar Lined and Tape Coated Pipe
What CMLCS means? Which is correct: CMLCS or CML&TC
Same question on Dwg U-24 plan view.

 

  • CML&TC is correct. This will be updated in the subsequent phase submittal.

 43

 Q:01/22/09
R:04/16/09
Plan Sheet / Specification Reference= Dwg UD-6

Question= What kind of coating is required for the pipe on the bridge ?
Dwg UD-6 calls our 300 mm CMLCS. What CMLCS stands for?
It is Northwest Pipe Co's interpretation that it should be CML&TC as shown on Dwg. UD-7.
Please advise.
  • CML&TC is correct. This will be updated in the subsequent phase submittal.

 44

 Q:01/22/09
R:02/05/09
Plan Sheet / Specification Reference= Water pipeline relocation; Dwg U-24,U-25, U-27

Question= Please provide detail dwgs. for  blow off and airvac piping.
  • This is a design sequencing project.  The missing detail sheet(s) will be provided in the subsequent phase submittal.

 45

 Q:01/27/09
R:02/03/09

Plan Sheet / Specification Reference= Bid items #89, #91, #93-Furnish Steel Piling

Question= As a Federal Aid Project (HPLU-6211(078) N, do the requirements of the Buy America (23CFR-635.410) provision for steel products apply to this contract.

  • Yes, see addendum No. 1 AMENDMENTS TO THE STANDARD SPECIFICATIONS DATED JULY 1999
    under SECTION 6 CONTROL OF MATERIALS, 6-1.085 BUY AMERICA (23 CFR 635.410).
46
 
Q:02/11/09

R:02/23/09
Plan Sheet / Specification Reference= Item No. 49 Clear & Grubb

Question= A site visit shows a tremendous amount of trash/rubbish that is impractical to accurately quantify. How will Caltrans pay for removal and disposal of such?
The fair way to pay for this work would be on extra work.

  • Please bid per current contract documents

47
 
Q:02/11/09

R:02/23/09
Plan Sheet / Specification Reference= Item No. 51 Roadway Exc

Question= Refer to sheet C-23 table specifing the Expansive Soil Locations and sheets X-1 through X-28. What is the purpose of placing Selected Material in locations not specified in Expansive Soil Locations Table?
Also, on sheets X-1 through X-28 please explain the intent of the call out

  • Please bid per current contract documents

48
 
Q:02/11/09

R:02/23/09
Plan Sheet / Specification Reference= Item No. 51 Roadway Exc

Question= So that there is a level bidding field, can this contract provide for the disposal of material in locations specified in addendum 1 by hauling through contract 11-091824?


  • Please see Section 10-1.18 Cooperation, of the Special Provisions regarding this situation.

49
 
Q:02/11/09

R:02/23/09
Plan Sheet / Specification Reference= Item No. 51 Roadway Exc

Question= Regarding construction of Airway Road East, please refer to sheets G-21 through G-23. With the excpetion of sheet SC-33 which calls out "Provide Access to Residents At All Times" there are no other staging plans. There doesn't appear to be residents on this portion of Airway, can this road be closed?

  • The note to provide access to residents refers to Cactus Rd. residents.  Airway Rd., between Cactus Rd. and Britannia Blvd., can be closed during construction.
50
Q:02/17/09

R:02/25/09
Plan Sheet / Specification Reference= Type of joints for the water line pipe (Bid Item #164, #165 & #166)

Question = Your plan drawings (see U-24, U-25 & U-27)  do not call out what type of joints should be used.
Your contract documents (page 337) says:
“Pipe ends shall be as follow:
A.         Bell & spigot
B.         Lap Welded Joints
C.         Flanges
D.         Butt Straps
E.         Grooved end couplings
F.         Flexible pipe couplings

Which one on the above do you want ?
On a previous identical question your answer was:
This is specified in the contract document.  Please bid accordingly

We could not find anywhere in the contract documents where is required a certain type of joints for these bid items so please direct us to the page or drawing number where this info is listed.

  • Please bid per current contract documents
51
 
Q:02/17/09

R:02/25/09
Plan Sheet / Specification Reference= Handholds for the water pipe: Size and number (Bid Item #164, #165 & #166)

Question= Your contract documents page 338 ask for: ”handholes shall be provided at each joint to apply mortar to line the inside joint”
This is the only reference to the handhole we found in the contract documents or plan drawings. Please specify the size of the handhole and how many do you want per joint

  • Please bid per current contract documents
 

52
 
Q:02/17/09

R:02/25/09
Plan Sheet / Specification Reference= Applied coal tar epoxy overcoat , over the cement mortar coating which is over the tape for Bid Item #164, # 165 &  # 166
(Dwgs: U-24, U-25 & U-27)

Question= Do you want the coating to be tape wrap with rock shield over and coal tar over the rock shield ?
Please clarify if  applied coal tar epoxy overcoat is required for the above mentioned bid items
The plans call for Tape Coating and Rock shield outlined on page 340.
Your specifications 10-4.03, pg 338 requires all cement mortar coated pipelines shall be provided with a shop applied coal tar epoxy.
Do you want the coating to be tape wrap with rock shield over and coal tar over the rock shield ?


  • Please bid per current contract documents

  53

  Q:02/20/09
R:02/26/09

Plan Sheet / Specification Reference= Items 160, 161 & 162

Question= #160 The 1850mm (72”) casing has a carrier pipe of 15” or 400mm, isn’t that a rather large casing for that purpose? Large and expensive to concrete encase.
#161 The 1850mm (72”) casing has a carrier pipe of 1050mm (42”) which seems to be much better suited than the 400mm but still rather large considering that it needs to be concrete encased.
#162 The 1850mm (72”) casing has a carrier of 600mm (24”) again rather large casing for the carrier pipe and expensive to concrete encase.

Suggest 36” (900mm) casing for 15” (400mm) carrier, 60” (1500mm)casing for 42” (1050mm) carrier and 42” (1050mm) casing for 24” (600mm)casing

  • Please bid per contract documents

  54

  Q:02/25/09
R:03/17/09

Plan Sheet / Specification Reference= Item 64, Geosynthetic Reinforced Emb. Sheet 617 Concrete membe quantities

Question= Can you verify "cribwall" (concrete headers and stretchers) quantities for the geosynthetic reinforced embankment?

  • Please bid per contract documents
  • Please see Addendum No. 8.

 

  55

  Q:02/26/09 R:04/22/09

Plan Sheet / Specification Reference= SS-3

Question=  Is the 1850 mm steel casing concrete encased? The plans call out for concrete encasement on the VCP only. Note 1 states to refer to Detail OM-2, which shows a detail of Manhole #3. Please clarify. Thank you.

  • Please bid per current contract documents.

  56

  Q:02/26/09
R:02/27/09

Plan Sheet / Specification Reference= ITEM #11, TEMPORARY DRAINAGE INLET PROTECTION (140 INLETS), W.P.C. CONTRACT PLAN SHEETS 138-185 SPECIAL PROVISION SECTION 10-1.6

Question= What is the total quantity of each TEMPORARY DRAINAGE INLET PROTECTION Type? (The quantity of each Inlet Type is NOT given in the Plans, Quantities, or the Special Provision Section 10-1.6). Please respond with the quantity of each type.

(TYPE 3A) QUANTITY? (TYPE 3B) QUANTITY? (TYPE 4A) QUANTITY? (TYPE 4B) QUANTITY? (TYPE 5)  QUANTITY?

  • The 3rd paragraph of 10-1.16 states that "The Contractor shall select the appropriate drainage inlet protection in accordance with the details to meet the conditions around the drainage inlet."  Therefore, the Contractor has the option of which approved Temp Drainage inlet protection to use.There are a total of 140 TDIP as shown on page 3 (Bid Item #11) of the special provisions.  The type is to be determined in the field per 10-1.16.  The individual types are not quantified separately.

  57

  Q:03/02/09
R:03/04/09

Plan Sheet / Specification Reference= Special Provision Section 10-1.02 Order of Work
reference pages 55 & 56. (Especially the R.O.W. Parcel Numbers and Clearance Dates Table on top of page 56).

Question= Is the table showing right of way parcel access valid and are the dates still current as shown?  Can the actual limts or boundaries of the parcels described in the table be provided in plan format?  Since the right of way is acquired or being acquired we need to see the limits or actual boundaries of the parcels affected and we respectfully request confirmatation on exactly where we have access and when.  Do you anticipate that the contractor may have access to the entire project ROW by the time the project actually bids?

  • Parcel 31346 is shown on Layouts L-7 & 8.  The limits are shown from R/W to R/W between approx Station 137+20 to 142+30
  • Parcel 33278 is the Slope Easement north of Airway Rd shown on L-21 & L-22
  • Parcel 33086 is the Slope Easement south of Airway Rd shown on L-21, L-22, & L-23
  • Parcel 34382 is the Temporary Construction Easement (TCE) shown on L-3
  • Parcel 34383 is the TCE shown on L-19
  • Parcel 34384 is the TCE north of approx station 148+00 Rte 905 to Heritage Rd shown on L-10 & L-11
  • Parcel 34385 is the TCE south of Rte 905 shown on L-13
  • Parcel 34387 is the TCE north of Rte 905 shown on L-13
  • Parcel 34388 is the TCE shown on L-12 & L-13

58
  Q:03/05/09
R:03/16/09

Plan Sheet / Specification Reference=

Question = In reference to questions 25 and 54 and per your answer “bid per contract documents”. The quantity chart on page 617 of 857 gives a non pay quantity of 1370 ea headers and stretchers; actual quantity needed per contract drawings is 4050 ea. How will the additional headers and stretchers required be paid for. Please clarify.

  • Please see Addendum No. 8.
59
  Q:03/05/09
R:03/16/09

Plan Sheet / Specification Reference= 80 Class 4 Aggregate Subbase, Section 10-1.55 page 151

Question = There is no information given for the Gradation or Quality, please provide.

  • Please see Addendum No. 8.
60
  Q:03/12/09
R:04/16/09

Plan Sheet / Specification Reference= N/A

Question = We have been informed that all advertised contracts pending bid opening that are funded by Prop. 1B will be postponed for 8-9 months. Please confirm.

  • Bid opening for this project is April 30th as scheduled.

61
  Q:03/30/09
R:04/16/09

 

 

 

 

 

Plan Sheet / Specification Reference=  Addendum #9, Section 5-1.015 PERFORMANCE OF UDBEs, last sentence.

Question: The last sentence states that “The Department does not pay for work or material unless it is performed or supplied by the listed UDBE.” 
Does this mean that if the Contractor is forced to replace a UDBE, they will not be paid for work performed by the replacement?

  • Please see Addendum No. 10.

 

62
  Q:04/22/09

R:04/22/09

Plan Sheet / Specification Reference= Sewer Encasement, Sheet #SS-3

Question = Note #1 on sheet SS-3 refers to Encasement Detail OM-2 on SSD-2 which is a Manhole Detail. What is the appropriate Detail # for the Encasement.
Please clarify ASAP

  • Please bid per current contract documents.
63
  Q:04/22/09
R:04/22/09

Plan Sheet / Specification Reference=

Question = I attended the mandatory prebid meeting and you were supposed to publish the list with the general contractors who attended the meeting.
Please advise

  • Posted on the link " PREBID SIGN-UP SHEET" above.

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