BIDDER'S INQUIRIES & RESPONSES
DISTRICT 11 CONSTRUCTION
CONTRACT NO:  11-068004
ROUTE / KP 11-Imp-7,8, 98-Var
LOCATION In Imperial County Near Calexico At Various Locations.
DESCRIPTION Existing Bridge Is To Be Widened And New Bridges And Retaining Walls Are To Be Constructed And New Highway Is To Be Constructed With Asphalt Concrete Over Aggregate Base.
ESTIMATE $ 31,000,000.00
A + B Bidding
ADVERTISE DATE 09/29/03
BID OPENING 11/20/03
FINAL POSTING 11/19/03    @   16:00

BID RESULTS
  1 
COFFMAN SPECIALTIES INC. $ 32,435,000.00
   260 DAYS
2
FCI CONSTRUCTORS INC.
W R CONNELLY INC 
A JV
$ 32,372,078.00
   280 DAYS
3
GRANITE CONSTRUCTION COMPANY $ 34,272,170.00
   350 DAYS

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
 MIBs
 CROSS SECTIONS
ADDENDUM

 ADDENDUM NO.1
10/09/03
 
 
 

BIDDER'S INQUIRY SUBMITTAL FORM
 

Inquiry No.
Inquiry
 1
Q:10/02/03
     R:10/03/03
Plan Sheet / Specification Reference=NOTICE TO CONTRACTORS

When will the cross sections be available and where?

  • Cross sections are available as of 10/03/03 and can be downloaded for printing from the link above at any local printing firm or on your own printing equipment:
       MESA BLUEPRINT
       5560 Ruffin Road Suite 5
       San Diego, CA 92123
       (858) 541-1500    FAX (858) 278-0558
       e-mail to  plot@mesablueprint.com San Diego, CA 92123
 2
Q:10/15/03
     R:10/31/03
Plan Sheet / Specification Reference=

1. If a Contractor who owns/controls his own commercial material facility, including aggregates, asphalt-concrete, and aggregate bases, supplies itself on this project in the capacity as a Prime Contractor, is trucking from the commercial facility owned/controlled by the Prime Contractor considered covered work?

  • - Yes, if handling and hauling of the materials is being performed by either the Prime Contractor's or any tier subcontractor's employees who perform work at the public works project site (site of work). Delivery by employees of a commercial supplier is not covered unless the employees perform work at the public works project site (site of work). If a contractor owns both, but does not separate the operations and segregate the employees of the respective supplying and contracting operations, the work would be covered. 
2. If a Contractor who owns/controls his own commercial material facility, including aggregates, asphalt-concrete, and aggregate bases, supplies itself on this project in the capacity as a Subcontractor, is trucking from the commercial facility owned/controlled by the Subcontractor considered covered work?
  •  - Yes, if material from a commercial site is handled or hauled by the prime's or the subcontractor's employees then the work is covered from the point when the contractor's/subcontractor's workers perform the work.  This includes when the subcontractor's material site is dedicated exclusively or nearly exclusively for the project, in which case all the work done at the materials site and the trucking would be covered work. Under Labor Code Section 1772 "Workers employed by contractors or subcontractors in the execution of any contract for public work are deemed to be employed upon public work" and subject to the payment of prevailing wages.
3. If a material supplier who owns/controls his own commercial material facility, including aggregates, asphalt-concrete and aggregate bases supplies an independent Prime Contractor or Subcontractor on this project, is trucking from the commercial facility owned/controlled by the material supplier considered covered work?
  • - No.   Delivery from a prior established commercial materials supplier with a history of making sales to the general public is exempt from prevailing wage requirements. If the materials site is considered part of the site of work, is adjacent or virtually adjacent to the project site, is dedicated exclusively or nearly exclusively to the site, was established after bid opening, did not sell or made only nominal sales to others, or if the material delivered was directly incorporated into the project then the work is covered. 
4. If the Prime Contractor or Subcontractor on this project utilizes owner operator truck drivers to transport material from an offsite location (either owned/controlled or not owned/controlled by the Prime Contractor or Subcontractor) to the project site, will the rate for trucking provided by the owner operator be subject to dispute at a later date by Caltrans.  If the answer is yes, what is the basis that Caltrans would determine the rate it believes to be applicable for owner operator trucking?
 
  • Caltrans (the Department) generally does not dispute prevailing wage rates established by the Department of Industrial Relations or the Department of Labor. The Department enforces the higher of those two rates if the rate is applicable. The Department of Labor's enforcement position on bona fide owner-operators (trucking) is that they are "independent contractors" not subject to the payment of prevailing wages. The Department of Industrial Relations has not issued a coverage determination expressly addressing owner-operator status. The issue is currently under review in our Department.  
3
Q:10/30/03
     R:11/07/03
Plan Sheet / Specification Reference= BID ITEM # 134 TRAFFIC MONITORING STATION (LOCATION 1) PLAN SHEET E-3 & E-10 
SHEETS E-4 E-6 E-7 E-10 E-11

1. SHEET E-4 SAYS SEE SIGN DETAIL ON SHEET S-1 SHEET S-1 SAYS ES-6U-TYPE 5 THERE IS NO ES-6U PLEASE CLARIFY, SHEET E-6 STATES III B R SERVICE. WHICH IS CORRECT? E-7 SHOWS TWO POLES WITH FLASHING BEACON CAN YOU CLARIFY WHAT TYPE POLES AND ARE R/B CTRS NEEDED? E-10 AND E-11 ARE THE LOOPS GOING IN THE NEW CONCRETE ROAD? AND SHOULD THEY BE PERFORMED?

  • ES-6U is incorrectly typed. It should read ES-6K on sheet S-1. As shown on sheet E-6, Type III-BF is correct. The detail on sheet E-4 is incorrect. It should read "Type III-BF". We are missing call outs for these Flashing Beacons. The plans only show the symbols for a flashing beacon and pole. Please reference standard plans ES-4C for advance flashing beacon installation. Yes, E-10 and E-11 are the loops going in the new concrete road and bid it as it's shown on the plans.


2. PLAN SHEET E-3 SHOWS TO RUN 2-CONDUITS TO TRAFFIC MONITOR STATION (LOC 1) ON SHEET E-10 SHEET E-10 NOTE 2 TO SEE E-3 FOR CONTINUATION. NEITHER SHEET GIVES A DISTANCE OR ROAD STATION MARK. WHAT IS THE STATION MARK FOR SHEET E-10? SHEET E-11 HAS ONE.
 

  • The Type 9 FB has a given distance to the limit line. It should be used as a mark. The distance between the FB and Traffic monitoring system is scaled as shown in the plan.
 4
Q:11/06/03
R:11/14/03
Plan Sheet / Specification Reference= #34- Roadway Ex.

 Special provisions section 10-1.32 states that compaction for foundation treatment will be paid for as roadway ex, but quantity is shown in the quantity summary.  What quantities are correct?
 

  • Foundation treatment is measured and paid for as roadway excavation and it is reflected under EARTHWORK QUANTITIES/EXCAVATION, EMBANKMENT (N) of the SUMMARY OF QUANTITIES. 
5
Q:11/07/03
     R:11/19/03
Plan Sheet / Specification Reference=Special Provisions Section 3 Award and
Execution of contract. Special Provisions Section 10-1.02 Water Pollution Control.

In Section 3 of the Special Provisions, the number of working days
must not exceed 450 which is approximately 20 months. In Section 10-1.02,
the rainy season is defined as between Aug 1 and Oct 1, and between Nov 1
and May 1. If the job was to start Jan 04, 12 of the 20 months (60% of max
duration) would be rain season months. Section 10-1.02 limits the active
disturbed soil area of the project during the rainy season to 4 hectares.
Ignoring the surface area of improvements to County roads and the Orchard/Rt8 ramp work, just the borrow site and foundation treatment amount to 234 hectares. The 4 hectare restriction would limit the Contractor to just 2% of the mass grading area.  Combined, this means that for 60% of the working days, the Contractor is  restricted to disturbing no more than 2% of the work area.  The 4 hectare restriction must be significantly increased.
 

  • Section 10-1.02 WATER POLLUTION CONTROL of the Special Provisions, limits the active disturbed soil area of the project during the rainy season, to 4 hectares. Post award of the contract, the State has the authority to exceed this limit in order to allow an acceptable levels of production on earthwork activities subject to the following conditions.

  •  

     

    1. Request is reasonable.
    2. Contractor requests in writing. Contractor submits appropriate SWPPP document and meets all other SWPPP and RWQCB requirements except the disturbed area hectares. The SWPPP must be approved by the Engineer.
    3. All the additional cost associated with modifying SWPPP, implementation of SWPPP and specifications, and other expenses related with the exceeding the 4 hectares limits SHALL be borne by the contractor. The contract items for implementation of SWPPP will be paid only for the work associated with the disturbed area limits of 4 hectares. Above 4 hectares, the contractor pays all the cost.
    4. Approval by the Engineer. The Engineer will have the authority to change the disturbed area limits to the original limits, if additional requirement are not fulfilled per satisfaction of the Engineer.
    5. Increase of the active disturbed soil area of the project during the rainy season to more than 4 hectares, will not wave any other requirements specified in the contract. Borrow site and roadway area, both would be subject to the aforementioned increase. 

 
6
Q:11/07/03
R:11/14/03
Plan Sheet / Specification Reference=

On the cross sections line "AW" at station 117+00 to the right the finish grade line never daylights with the existing grade.  If you check the grading plans it shows you only grading the slope.  This leads me to believe that at the toe of the slope your finish grade should match existing grade.  This is not what is shown on the cross sections.  This also occurs at sta 118+40 on the "AW" line.  Could you please clarify what is supposed to happen. 

  • The cross sections on "AW" line at station 117+00 to the right mateches up with the cross section at station 779+20 of the "NE" line. The cross sections on "AW" line at station 117+00 to the right of the finished grade needs to daylight at original ground.
 7
Q:11/07/03
R:11/17/03
Plan Sheet / Specification Reference=

I am wondering where you have taken into account in your earthwork summary for shrink or swell?  There is no information in the plans that I can find.  I was also wondering if there were earthwork calculation sheets available?  Usually they are included with the cross sections, but I didn't happen to see any with this particular job.  Thanks.
 

  • A grading factor of 0.9 has been applied for the purpose of calculating the earthwork on this contract. 
  8
Q:11/07/03
        R:11/17/03
Plan Sheet / Specification Reference=Special Provisions Section 3 Award and Execution of contract.  Special Provisions Section 10-1.02 Water Pollution Control.

In Section 3 of the Special Provisions, the number of working days must not exceed 450 which is approximately 20 months.  In Section 10-1.02, the rainy season is defined as between Aug 1 and Oct 1, and between Nov 1 and 
May 1.  If the job was to start Jan 04, 12 of the 20 months (60% of max duration) would be rain season months.  Section 10-1.02 limits the active disturbed soil area of the project during the rainy season to 4 hectares.  Ignoring the surface area of improvements to County roads and the Orchard/Rt 8 ramp work, just the borrow site and foundation treatment amount to 234 hectares.  The 4 hectare restriction would limit the Contractor to just 2% of the mass grading area.  Combined, this means that for 60% of working days, the Contractor is restricted to disturbing no more than 2% of the work area.
 

  • Please see the response to inquiry No.  5.
  9
Q:11/10/03
        R:11/18/03
Plan Sheet / Specification Reference=
What is happening on the cross sections on the HUN line between Sta 14+60 and 15+60?  Which line on the sections is the actual existing contour?  Are we responsible for filling in the channel in that area?  It looks like from 15+60 to 16+60 we do fill it in.  Please clarify.
 
  • The channel cross section shown is the actual existing ground, and the roadway template needs to daylight at the top of the left levy of the channel. The contractor is responsible for filling the channel, and the earthwork quantity includes the fill material. 
10
Q:11/14/03
        R:11/17/03
Plan Sheet / Specification Reference= Plan sheets L-7 to L13 and G-51 to G-62

In the Contract Plans, Layout sheets L-7 to L-13 direct the
plan-holder to see the Contour Grading Plan for excavation outside the shown
right-of-way. The referenced Grading Plans, sheets G-51 to G-62 encompass
approximately 215 hectares. Will the 215 hectares outside of the right-of-way be included when
calculating the active disturbed soil area of the project?
 

  • Please see the response to inquiry No.  5.
11
Q:11/17/03
        R:11/17/03
Plan Sheet / Specification Reference= Plan sheets L-7 to L13 and G-51 to G-62

The weights for items #79, 80, 81 & 82 are not correct. Please review and advise us of action to be taken. 
 

  • Items # 79 and 81 are incorrect and the items #80 and 82 are correct, as reflected in the Special Provisions. Nevertheless, they are both Final Pay items. The OVERHEAD SIGN STRUCTURE quantity of the OVERHEAD SIGN DETAILS (Sheet S2) of the project plans reflects the actual quantities. 

  •  
12
Q:11/17/03
        R:11/19/03
Plan Sheet / Specification Reference= 510129, Class 2 Concrete (Box Culvert), Sheet C-13 & D-83

For the box culverts, there is no specified height or span for any of the box culverts.  What are the spans and heights of the box culverts?

  •  The specified height and span of the box culverts are 1220 mm by 1220 mm, per section D80 of the Standard Plans. Sheet C-19 Refers to sheet C-13 0f the construction plans. 
OTHER LINKS OF INTEREST
DISTRICT 11 CONSTRUCTION BIDDER'S INQUIRIES & RESPONSES
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DEPARTMENT OF TRANSPORTATION