Bidder Inquiries

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Viewing inquiries for 04-3G9004

Inquiry #1: FYI-Caltrans to-All Bidders- How do I register for Mandatory Pre-Bid Meeting?
Inquiry submitted 05/10/2023

Response #1:Please do not use the Bidder Inquiry platform for Mandatory Pre-Bid Meeting registration; it is for inquiries related to bidding on the project contract. Register in advance of the Mandatory Pre-Bid Meeting, and no later than 1 hour before the meeting time, by sending an email with bidder information to D4.Construction.Duty.Senior@dot.ca.gov
Please include the project number & "Mandatory Pre-Bid Meeting", within the subject of the email.
Response posted 05/10/2023

Response #2:Companies that attended the Mandatory Pre-Bid Meeting:
• ARGONAUT CONSTRUCTORS
• GHILOTTI CONSTRUCTION CO INC
• GHILOTTI BROS INC
• GRANITE CONSTRUCTION
• O.C. JONES & SONS INC

Response posted 06/08/2023

Response #3:Also attended the Mandatory Pre-Bid Meeting:
• THOMPSON BUILDERS CORPORATION
Response posted 06/12/2023

Inquiry #2: Refer to Erosion control type 3 on legend plans sheet ECL-1, step 3 shows item Incorporate Materials for Topsoil & compost. However, there is no callout quantity for this item on plans sheet ECQ-1. Please verify working locations required for this material. Also, which bid item would cover the cost for it?
Inquiry submitted 06/05/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/05/2023

Response #2:Refer to replaced sheet numbers 189, 190, and 192 in Addendum 1. Refer to replaced Bid Items 56, 61, and 62 in Addendum 1. Note that in Steps 1 and 2, the required amounts of topsoil and compost are placed. In Step 3, the material is rototilled into the ground to a depth of 6 inches, in example, nothing is placed in Step 3.

Response posted 06/22/2023

Inquiry #3: Refer to specs section 13-6.03C shows “the drainage inlet protection must be Type 1, Type 4A, Type 4B, or Type 5,..”. However, on plans sheet WPC-1 shows Temporary water pollution notes with Type 4A, Type 4B, Type 5 and Type 2. If there has any of Temporary inlet protection Type 1 would be required for this project? If yes, please provide location to be installed and quantity of Temporary inlet protection Type 1 on the drawings.
Inquiry submitted 06/05/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/05/2023

Response #2:Refer to replaced SSP 13-6.03C in Addendum 1.
Response posted 06/23/2023

Inquiry #4: Please provide type of material of Erosion Blanket for Bid item #0022 Temporary Erosion Control Blanket.
Inquiry submitted 06/05/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/05/2023

Response #2:Refer to standard specification sections,
13-6.02 and
21-2.02O(4)
Response posted 06/08/2023

Inquiry #5: Refer to Erosion Control Legend on plans sheet ECL-1, Step 4 of EC type 3 shown Seed Mix 3 with application rate at 27.9 Lb/Acre, but the components of Seed Mix 3 on Seed mix table shown total of 27.85 Pounds Pure Live Seed per Acre. Please verify which application rate is correct and revise the EC legend.
Inquiry submitted 06/06/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/07/2023

Response #2:The inquiry has been received and submitted for consideration.
Response posted 06/07/2023

Response #3:The application rates referenced are the same – 27.9 lb/acre is a result of rounding 27.85 lb/acre. As shown on ECL-1 the “application rate” for EC Type 3 for the seed mix 3 is 27.9 lb/acre.
Response posted 06/09/2023

Inquiry #6: The CA High Design Manual Section 850-34 dated December 30th, 2015 warns against specifying plastic pipe in areas with a potential for fire. This project lists Alternative Pipe Culvert in the Bid Schedule. Will Caltrans still allow for plastic pipe to be used on this project?

Inquiry submitted 06/08/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/08/2023

Response #2:Allowable pipes material is shown on plan sheet DQ-1.
Response posted 06/09/2023

Inquiry #7: Will a copy of the sign in sheet for the mandatory meeting be available on the website? I see you listed some of the GC's that joined but our company was not listed even though we attended
Inquiry submitted 06/09/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/12/2023

Response #2:We have confirmed your registration for and attendance of the Mandatory Pre-Bid Meeting, the company has been added to the list. Please see Bidder inquire #1, response #3.
Response posted 06/12/2023

Inquiry #8: It appears that there is and error for the quantity listed for Item 78 (F) - STRUCTURAL CONCRETE, BOX CULVERT. Please verify the actual quantity, thank you.
Inquiry submitted 06/13/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/14/2023

Response #2:Refer to replaced sheet numbers 112 and 113 in Addendum 1.

Refer to replaced Bid Items 78 and 82 in Addendum 1.

Response posted 06/27/2023

Inquiry #9: There are no bid items for the following work listed in the Special Provisions:
Vibration Monitoring - Section 14-8.03
Crack Monitoring - Section 14-8.04
Photo and Video Documentation of Existing Non-Highway Facilities - Section 14-8.06
How is this work paid for??
Inquiry submitted 06/14/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/14/2023

Response #2:Payment for vibration monitoring, crack monitoring and photo and video documentation will be part of associated items of work.
Response posted 06/15/2023

Inquiry #10: Bid item # 29 "Temporary Construction Roadway", what is the section requirement for this work??
Inquiry submitted 06/15/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/15/2023

Response #2:Please refer to 13-7.03 TEMPORARY CONSTRUCTION ROADWAYS AND ENTRANCES.
Response posted 06/15/2023

Inquiry #11: There seems to be an item for temporary irrigation system, but no irrigation plans? What type of temporary irrigation is to be installed? Is contractor installing cam coupler assemblies? Not Clear, please provide irrigation plans.
Inquiry submitted 06/16/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/16/2023

Response #2:Please refer to the Bay Area Recycled Water Commercial Truck Fill Facilities Location Guide in the Information Handout.
Response posted 06/19/2023

Inquiry #12: Special Provision Section 73-4.02 says the textured concrete paving must use form liner no. 1626, Kleen Slate, or equal. That liner looks to be used in vertical formwork architectural treatments, not in horizontal applications, that is concrete stamps. Is there a concrete stamp pattern that would achieve a similar look?
Inquiry submitted 06/19/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/20/2023

Response #2:The form liner selected can also be pressed into the freshly poured concrete or another method can be selected to achieve the same results.
Response posted 06/20/2023

Inquiry #13: Reference Special Provision Section Stabilized Soils 24-2.03C (Sheet 105). The referenced spread rate of .33 lb/sq yd will not provide for 2500 lb/sq in compressive strength. Please review and provide revised criteria.
Inquiry submitted 06/20/2023

Response #1:
Response posted 06/20/2023

Response #2:The inquiry has been received and submitted for consideration.
Response posted 06/20/2023

Response #3:Add lime to the material to be stabilized at the rate of 70 lb/sq yd. The exact rate is based on achieving an unconfined compressive strength of the lime-stabilized soil of 300 lb/sq in, determined under California Test 373.
Response posted 06/22/2023

Inquiry #14: We request an extension of one week to the current bid date of 6/29/23.
Inquiry submitted 06/20/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/21/2023

Response #2:Please see Addendum 1 and be aware the bid open date is now 7/11/2023.
Response posted 06/27/2023

Inquiry #15: Confirm that bid item 0054 temporary irrigation system is for trees on sheet PP-1 only and no temporary irrigation system is required for hydroseed areas shown on sheet EC-1 & EC-2. Otherwise, please advise.
Inquiry submitted 06/21/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/22/2023

Response #2:Yes, the temporary irrigation (truck watering) is only for the project tree plantings.
Response posted 06/22/2023

Inquiry #16: In Stage 2, the plans show that traffic heading northbound on SR-121 from Sears Point, will make a right at the temporary signal to head eastbound toward Napa. Is the existing SR-121 diagonal ramp remaining open at this time since we are excavating for Roadway Section 7 during this Stage? The k-rail stops short if we are closing this area.
Inquiry submitted 06/22/2023

Response #1:The inquiry has been received and submitted for consideration.
Response posted 06/22/2023

Response #2:In Stage 2, the existing SR-121 diagonal ramp will be closed at this time for excavating Roadway Section 7. The k-rail needed to stop short to allow access to Vineyard Inn. Temporary Delineators (Class 1) are installed as an alternative to restrict access, refer to Sheet 141 (TH-6) for more details.
Response posted 06/22/2023

The information provided in the responses to bidder inquiries is not a waiver of Section 2-1.07, "JOB SITE AND DOCUMENT EXAMINATION" of the Standard Specifications or any other provision of the contract, nor to excuse the contractor from full compliance with the contract. Bidders are cautioned that subsequent responses or contract addenda may change a previous response.