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Viewing inquiries for 04-2J7604

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Inquiry #1: Please clarify the intent of the statement added to Section 57-2.01B(3) of the Standard Specifications within page 42 of the Special Provisions, as suppliers are indicating that plastic timber cannot be preservative treated timber, because plastic timber is not preservative treated.
Inquiry submitted 12/08/2022

Response #1:Submitted for consideration.
Response posted 12/12/2022


Response #2:Please see Addendum 3. In the Special Provisions, Section 57 is deleted.
Response posted 01/05/2023




Inquiry #2: In the Notice to bidders and special provisions, it states to add to section 57-2.01B(3): “Plastic timber must be preservative-treated timber”. The plans call out to install 10x10 plastic lumber. Please clarify if we are to install plastic lumber per the table shown in section 57-3.02A or treated timber per section 57-2.01C(3)(a)?
Inquiry submitted 12/08/2022

Response #1:Submitted for consideration.
Response posted 12/12/2022


Response #2:Refer to plan sheets 45, 46 and 47 of 49. Plastic lumber must comply with the specifications from section 57-3 of the standard specifications.
Response posted 12/15/2022




Inquiry #3: Please indicate the minimum required lengths of plastic lumber acceptable for use.
Inquiry submitted 12/08/2022

Response #1:Submitted for consideration.
Response posted 12/12/2022


Response #2:Please refer to plan sheets 45, 46, and 47 of 49 for the lengths of the plastic lumber. Please bid per the current contract documents.
Response posted 12/15/2022


Response #3:Refer to plan sheets 45, 46 and 47 of 49 for the lengths of the plastic lumber. Please bid per the current contract documents.
Response posted 12/15/2022




Inquiry #4: What is the intended gallon size of plants to be put into the landscape areas?
Inquiry submitted 12/08/2022

Response #1:Submitted for consideration.
Response posted 12/12/2022


Response #2:The plant size for No. 5 is 785 minimum to 1242 maximum cubic inches of container volume.
Response posted 12/15/2022


Response #3:On Planting Specifications Sheet (PL-1), the “Plant Group Size” is “B”, which corresponds to No. 5 size in Group Size designations. Thus "Plant Size Group" of "B" requires a 785 minimum to 1242 maximum cubic inches of container volume.

Response posted 12/15/2022




Inquiry #5: ITEM #63, MIDWEST GUARDRAIL SYSTEM (MGS), WOOD POST:
Plan L-1, show MGS from "CL" 11+19 to 12+14, a total of 162 LF. Is this the length of the MGS Pay Item, or should the Alternative In-Line TS and WB-31 Transition Railing lengths be deducted from the pay length?

ITEM #66, END ANCHOR ASSEMBLY, TYPE CA:
Does the Engineer really want a Cable Anchor Assembly, or should this Item be changed to an A77S1, End Anchor Assembly, Type SFT or SFT-M?

Inquiry submitted 12/08/2022

Response #1:Submitted for consideration.
Response posted 12/12/2022


Response #2:Please see revised plans sheets L-1 and Q-1 in Addendum 3.
Response posted 01/05/2023




Inquiry #6: Per sheet L-1, Please confirm you would like to use a End Anchor Assembly (Type CA). It calls for a 12DD which would be a SFT-M.
Inquiry submitted 12/09/2022

Response #1:Submitted for consideration.
Response posted 12/12/2022


Response #2:The project will use End Anchor Assembly (Type SFT-M). See plan sheets L-1 and Q-1 in addendum 3.
Response posted 01/02/2023




Inquiry #7: Please specify the approved color for the 10"x10" Plastic Lumber
Inquiry submitted 12/12/2022

Response #1:Submitted for consideration.
Response posted 12/12/2022


Response #2:Refer to Section 57-3 for plastic lumber color.
Response posted 12/15/2022


Response #3:Refer to section 57-3 for plastic lumber color.
Response posted 12/15/2022




Inquiry #8: What grade stainless steel is required for the misc. metal plastic lumber anchoring devices shown on Plan Sheet 47?
Inquiry submitted 12/15/2022

Response #1:Submitted for consideration.
Response posted 12/15/2022


Response #2:Please refer to Plan Sheet 42 of 49, General Notes: MISCELLANEOUS METAL, Stainless Steel, fy => 36 ksi. Please bid per the current contract documents.
Response posted 01/05/2023




Inquiry #9: The Notice to Bidders shows 2 paragraphs: "Do not include plant establishment working days in your bid" and "Complete the plant establishment work within 250 working days". Please clarify if item no.0033 - Plant establishment work is a part of this project.
Inquiry submitted 12/16/2022

Response #1:Submitted for consideration.
Response posted 12/16/2022


Response #2:Yes, Plant Establishment work is a part of this project.
Response posted 01/05/2023




Inquiry #10: Please provide a watering schedule and water usage calculation chart for 250 working days plant establishment for bidding purposes so all the bidders can bid this requirement equally.

Inquiry submitted 12/16/2022

Response #1:Submitted for consideration.
Response posted 12/16/2022


Response #2:Per SSP 20-4.01C(1), Contractor needs to submit seasonal watering schedules for use during the plant establishment period within 10 days after the start of the plant establishment period. Caltrans does not provide watering schedules for bidders to bid on.
Response posted 12/19/2022




Inquiry #11: Please clarify the number of damaged piles to receive glass fiber wrap.
Inquiry submitted 12/19/2022

Response #1:Submitted for consideration.
Response posted 12/20/2022


Response #2:Refer to Plan Sheet 49 of 49 "Pile Repair Table" and "Typical Pile Detail"- LOCATIONS TO BE DETERMINED BY ENGINEER.
Response posted 01/03/2023




Inquiry #12: Section 5-1.20G of the SP states that Contractor is to provide Alameda County with a $5,000 "inspection deposit fee". Please clarify if the Contractor gets the $5,000 deposit back at the end of the job or not?


Inquiry submitted 12/21/2022

Response #1:Submitted for consideration.
Response posted 12/22/2022


Response #2:The contractor does not get the full $5,000 "inspection deposit fee" back.

The $5,000 "inspection deposit fee" (deposit) is a deposit to pay the inspections conducted by The Alameda County Flood Control District.
The Alameda County Flood Control District inspection fees are deducted from the deposit, at cost, as the inspections take place.

If there are any funds, from the deposit, remaining at the end of the project, the remaining amount will be refunded to the contractor.

If the inspection fees exceed the $5,000 deposit, Caltrans will pay for the shortage -- "If the fees have changed, the Department will pay the difference between the specified fees and the new fees."-- Section 5-1.20G of the SSPs.

Response posted 12/22/2022




Inquiry #13: Special Provision Section 83-2.01B(2)(b)(iv) Coloring Agent states that the coloring agent must be integral to the concrete mix and added at the concrete plant. Please provide the color that is required so we can properly estimate the added costs for the color.
Inquiry submitted 12/29/2022

Response #1:Submitted for consideration.
Response posted 12/29/2022


Response #2:The concrete is to be a generic light gray color. No coloring agent is required.
Response posted 01/02/2023




Inquiry #14: The Fish & Game Permit discusses installing 726 CY of temporary fill within the creekbed. Under what item is this work being paid for?
Inquiry submitted 01/06/2023

Response #1:Submitted for consideration.
Response posted 01/06/2023


Response #2:The 726 CY is the estimated maximum amount of temporary fill within the creek bed associated with the cofferdams (stream diversion) and temporary work platforms needed to construct the project. This work is paid under Item 23, Temporary Creek Diversion System.
Response posted 01/09/2023




Inquiry #15: Re the Composite Column Casing Scope - Section 60-4.07C(1) specifies that the existing concrete columns to receive composite strengthening are to be evaluated for unsound concrete, and in the event that any unsound concrete is identified and spall repair is required, the Contractor shall: "Remove and patch unsound concrete under section 60-3. Removing and patching unsound concrete is
change order work."

However, Section 60-4.07C(2), Surface Preparation item 4 specifies: "Fill cracks that have widths larger than 0.01 inch under section 60-3.05C."

This requirement to perform any necessary Section 60-3.05C Epoxy Injection Crack Repair work as part of the Composite Column Casing scope is not indicated as undefined work that will be paid as change order work. Since there is no way to properly quantify the extent of any necessary Epoxy Injection Crack Repair scope prior to mobilization, please either provide a separate bid item and quantity for the Inject Crack (Epoxy) scope (Item Code 600003), or otherwise indicate/confirm that any epoxy injection crack repair required as pertaining to this Composite Column Casing scope will be paid as change order work, similar to the reference to any required spall repair associated with this section 60-4.07C scope.

Inquiry submitted 01/09/2023

Response #1:Submitted for consideration.
Response posted 01/09/2023


Response #2:Please bid per the current contract documents.
Response posted 01/10/2023




Inquiry #16: WPCD-1 Drawing indicates a 10' tall cofferdam. The foundation plan (sht 45 of 50) shows a scoured creekbed at the upstream cofferdam area, with a low point of Elev. -5. High high tides approach Elev 8 in this area (according to tidal charts) ... therefore with 2' of freedboard the cofferdam should be 15' tall. Furthermore, the high watermark shown on the Elevation view of sht 42 suggests Elev 4 (5' below soffit) ... which is surely incorrect.
Inquiry submitted 01/10/2023

Response #1:Submitted for consideration.
Response posted 01/10/2023


Response #2:Please bid per current contract documents.

Special Provisions, Section 13-12.01C(2) outlines what is required for the Temporary Creek Diversion System Plan. Item 14 of that section states: "You are allowed to use an alternative method without additional cost to the Department if authorized. If an alternative is proposed, submit TCDSP for authorization including certificate of compliance.”

In regard to the nonuniform creek bed on the upstream end of the project site (i.e., east of Northbound Interstate 880), it is suggested that a diversion (of any configuration) be installed on a relatively uniform surface. At this location, an option could be to place gravel bags to fill the depressions, in order to create a surface on which to place the diversion.

Response posted 01/11/2023


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.