BIDDER'S INQUIRIES & RESPONSES
DISTRICT 11 CONSTRUCTION

 
CONTRACT NO: 11-295804
ROUTE / KP 11-Imp-86-7.6/8.0
LOCATION In Imperial County In El Centro From Scott Avenue To Lincoln Avenue
DESCRIPTION Install Reinforced Concrete Pipes On Ditches.
ESTIMATE $ 530,000
WORKING DAYS

40

ADVERTISE DATE 04/20/2009
BID OPENING 05/21/2009
FINAL POSTING
05/21/09  @ 08:29

 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


BID ITEMS
 SPECIALS
PLANS
 PLANHOLDERS


ORDERING PROJECT PLANS AND SPECIFICATIONS   

Cost per set: Bidders: $20, Non-bidders: $13

ADDENDUM



 

BIDDER'S INQUIRY SUBMITTAL FORM


Inquiry No.
Inquiry

   1

  Q:05/12/09
R:05/19/09

Plan Sheet / Specification Reference=

Question=1) What is the compaction requirement for structural backfill (%) around the RCP?

  • Please refer to Section 10-1.22 Reinforced Concrete Pipe, under General of the Special Provisions.

2) What type of material is acceptable for use as structural backfill? Material w/ SE < 2.0? or?

  • Structure Backfill material should be per section 19-3.06, Structural Backfill of the Standard Specfications.

3) What items are to be paid for under bid item #12?

  • Item # 12 MISCELLANEOUS IRON AND STEEL is for Drainage Junction Structures as shown in the Drainage Quantities plan, DQ-1.

 

  2

  Q:05/18/09
R:05/19/09

Plan Sheet / Specification Reference= Bid item #11 RCP

Question=What is the class of pipe required for this project? 

  • Please refer to Standard Plans A62D as specfied in Section 10-1.22 Reinforced Concrete Pipe, under General of the Special Provisions.

  3

  Q:05/18/09
R:05/19/09

Plan Sheet / Specification Reference=Item #10 Class 2 concrete (Minor Structure) Sheets DP-1, 2 DD-1, DQ-1 Section 10-1.20 Concrete Structures.

Question=Item # 10 of the Bid schedule lists a quantity of 30 CY. My calculations actually come out closer to 57 CY. Item # 10 is not final pay quantity. Will we be paid only on the 30 CY quantity or will we be paid on the actual quantity measured in the field? 

  • Please bid per current contract documents.
  • Please refer to sections 4.103B Increased or decreased Quantities of the Standard Specfications.

  4

  Q:05/19/09
R:05/19/09

Plan Sheet / Specification Reference=Structure excavation and structure backfill

Question= 1. Will the material excavated be suitable for use as backfill as long as it is clean and moisture conditioned?

  • Please refer to Section 19-3 Structural Excavation and Backfill of the Standard Specfications.

2. The Special Provisions 10-1.22 speak of 85% compaction. Is this cover on the pipe considered "embankment"?

  • NO

Does this 85% apply to the backfill to springline and cover of the pipes?

  •   NO

  5

  Q:05/20/09
R:05/21/09

Plan Sheet / Specification Reference=Item #7, Traffic Control System, Special Provisions 10-1.10, Bid Item list

Question=The bid item list does not include a line item for K-rail, Crash cushions, Plastic drums.

1. If there is not a line item for these traffic devises will they be required?

  • They are only required under Section 7-1.09 of the Amendments to the Standard Specifications, May 2006.

2. In the special provisions 10-1.10 paragraph 6 says "the shoulder area shall be closed as shown on the plans. The plans do not indicate how to close the shoulder nor do the standard drawings include a detail for closing the shoulder. What will be required to close the shoulder? What will be required outside of working hours to separate the work area from the open shoulder?

  • See Standard Plan T-10 for shoulder closure during work hours.
  • Please review Section 7-1.09, Public Safety of the Amendments to the Standard Specifications, May 2006, regarding your concerns about separating the work area from traffic.

   

 


OTHER LINKS OF INTEREST

DISTRICT 11 CONSTRUCTION BIDDER'S INQUIRIES & RESPONSES
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