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Viewing inquiries for 04-0K4904
Submit new inquiry for this projectInquiry #1: FYI-Caltrans to-All Bidders- How do I register for Mandatory Pre-Bid Meeting?
Inquiry submitted 10/17/2022
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 10/17/2022
Inquiry #2: Please provide Bid Items to lower and raise frames & covers for manholes, utility boxes, detector handholes, etc.
Inquiry submitted 10/19/2022
Response #1:Submitted for consideration.
Response posted 10/19/2022
Response #2:Raising and lowering of manhole cover is not required on this project. Bid paving and grinding items accordingly. See 2018 Standard Specifications, Section 36-3 and 39-2.
Response posted 11/14/2022
Inquiry #3: Please provide Bid Items to lower and raise frames & covers for manholes, utility boxes, detector handholes, etc.
Inquiry submitted 10/19/2022
Response #1:Submitted for consideration.
Response posted 10/19/2022
Response #2:See bidder inquiry #2 response.
Response posted 11/14/2022
Inquiry #4: Please confirm that all "residential" concrete curb & sidewalk sawcutting, demolition, and removal may occur between 9:00 pm - 6:00 am, Monday - Friday, per Section 14-8.02 and that it is the Contractor's option to perform this Work using the Lane Requirements shown in Charts K3 and K5 per Section 12-4.02C(3)(j).
Inquiry submitted 10/19/2022
Response #1:Submitted for consideration.
Response posted 10/20/2022
Response #2:See Addendum 1 and refer to Section 14-8.02 Noise Monitoring.
Response posted 11/22/2022
Inquiry #5: Due to the density of intersecting roadways on this project, please consider a special provision for Specification Section 39-2.01A(4)(i)(iii) - Pavement Smoothness or removing this Section entirely.
Inquiry submitted 10/20/2022
Response #1:Submitted for consideration.
Response posted 10/20/2022
Response #2:Regarding exceptions to using the Inertial Profiler and using the 12' straightedge instead, please refer to Section 36-3.01D(3)(b)(i). Note, smoothness will always be a requirement for a paving project.
Response posted 11/14/2022
Inquiry #6: Please provide provisions for Bid Item 52 - Pre/Post Construction Survey.
Inquiry submitted 10/20/2022
Response #1:Submitted for consideration.
Response posted 10/21/2022
Response #2:
Response posted 11/14/2022
Response #3:Please see SSP 73-3, per Addendum 1.
Response posted 11/22/2022
Inquiry #7: Please confirm that all Crack Treatment will be performed prior to cold planing and the crack repair Work described in Section 39-2.01C(3)(g) - Geosynthetic Pavement Interlayer does not apply.
Inquiry submitted 10/20/2022
Response #1:Submitted for consideration.
Response posted 10/21/2022
Response #2:Crack treatment is to be performed following the cold planning operation according to the contract. Geosynthetic is still required per the structural sections shown on the contract plans. Per Section 39-2.01C(3)(g) - Geosynthetic Pavement Interlayer, cracks are to be repaired prior to placement of Geosynthetic Pavement Interlayer. Crack treatment is paid on Item 34. In a single shift the contractor will cold plane, if there are visible cracks place crack treatment, place tack coat, place geosynthetic pavement Interlayer as required and pave the asphalt layers.
Response posted 11/22/2022
Inquiry #8: Due to the density of frames & covers for manholes and utilities on this project, please consider a special provision for Specification Section 39-2.01A(4)(i)(iii) - Pavement Smoothness or removing this Section entirely.
Inquiry submitted 10/21/2022
Response #1:Submitted for consideration.
Response posted 10/21/2022
Response #2:Please see responses to bidder inquiry #2 and #5.
Response posted 11/14/2022
Inquiry #9: What is the project-specific intended scope of work for Bid Item - 23 (Clearing & Grubbing)?
Inquiry submitted 10/21/2022
Response #1:Submitted for consideration.
Response posted 10/21/2022
Response #2:Generally speaking, the clearing and grubbing is for the curb modification work at Medians 1 through 5 on the contract plan (see Construction Detail Sheets C-53 through 62, as well as IR-1 through 3) and to remove a tree at the intersection of Elsie and Route 185; See sheet C-31 at approximately Station “SR185†79+07.89.
Response posted 11/22/2022
Inquiry #10: Summary of Quantity Sheet Q-1 call for the section of Rubberized Hot Mix Asphalt (Gap Graded) to be 0.15'. Structural Section 2 of the Typical Cross Sections on Sheet X-1 shows RHMA-G to be 0.20'. Which clarify which is correct?
Inquiry submitted 10/24/2022
Response #1:Submitted for consideration.
Response posted 10/24/2022
Response #2:Please see revised sheet Q-1 in Addendum 1.
Response posted 11/22/2022
Inquiry #11: Bid Item 0035, Hot Mix Asphalt (Type A) has a bid quantity of 1,660 TN. Summary of Quantities sheet Q-1 shows a quantity of 11,182.73 TN. Please clarify.
Inquiry submitted 10/24/2022
Response #1:Submitted for consideration.
Response posted 10/24/2022
Response #2:Please see revised sheet Q-1 in Addendum 1.
Response posted 11/22/2022
Inquiry #12: Please provide a Bid Item for the 13.77 CY of Minor Concrete work shown on Sheet Q-2 (Summary of Quantities).
Inquiry submitted 10/26/2022
Response #1:Submitted for consideration.
Response posted 10/26/2022
Response #2:Please be aware an item for minor concrete has been added, per Addendum 1.
Response posted 11/22/2022
Inquiry #13: In reference to Section 12-4.02C(3)(j), please confirm the San Leandro and Martinez Railroad Crossings are both at-grade crossings, the Martinez Railroad Crossing is located at Sta. 87+63, and both railroads owned & operated by UPRR even though Plan Sheet L-7 labels the crossing at Sta. 87+63 as Western Pacific Railroad R/W.
Inquiry submitted 10/27/2022
Response #1:Submitted for consideration.
Response posted 10/27/2022
Response #2:Yes, both railroad crossings are at-grade and both are owned by UPRR. Note, Western Pacific Railroad R/W is owned by UPRR. Please see information handouts with reference to the railroad.
Response posted 11/14/2022
Inquiry #14: Typical Cross Sections show a cold plane depth of 0.20' for pavement structural section 1 areas. Summary of Quantities sheet Q-1 calls out a depth of 0.25' for cold plane AC pavement. Please confirm the correct depth of cut for the cold plane at structural section 1 areas.
Inquiry submitted 10/27/2022
Response #1:Submitted for consideration.
Response posted 10/27/2022
Response #2:Please see revised sheet Q-1 in Addendum 1.
Response posted 11/22/2022
Inquiry #15: Sheet Q1 shows 9,790 LF of Temporary Fencing. Bid item is only for 260 LF. This appears to be the qty on L-3. There does not appear to be any temporary fencing on L-4 as shown on Q-1.
Please update Q-1 with proper qty and sheet numbers.
Inquiry submitted 10/27/2022
Response #1:Submitted for consideration.
Response posted 10/28/2022
Response #2:Please see revised sheet Q-1 in Addendum 1.
Response posted 11/22/2022
Inquiry #16: Q-1 shows a qty of 155,755 sy of Cold Plane AC Pavement. Bid item 40 is for 154,000sy. Please clarify.
Inquiry submitted 10/27/2022
Response #1:Submitted for consideration.
Response posted 10/28/2022
Response #2:Please see revised sheet Q-1 in Addendum 1.
Response posted 11/22/2022
Inquiry #17: Section 39-2.01C(3)(c) requires prime coat to be applied as directed by the Engineer. Please provide a bid item, qty., and locations for this work.
Inquiry submitted 11/01/2022
Response #1:Submitted for consideration.
Response posted 11/01/2022
Response #2:Please be aware Prime coat is not expected to be used. Kindly be aware, there are quantities for tack coat on sheet L-1.
Response posted 11/14/2022
Inquiry #18: Will contractor be required to lower manholes, valve, etc. prior to mill and overlay operations?
Inquiry submitted 11/09/2022
Response #1:Submitted for consideration.
Response posted 11/10/2022
Response #2:Please see the response to bidder inquiry 2.
Response posted 11/14/2022
Inquiry #19: Please confirm that 0.5' Class II AB is required under concrete walk, ramps and curb. Can you verify that Bid Item 32 Class II Aggregate Base is correct (86 CY)?
Inquiry submitted 11/10/2022
Response #1:Submitted for consideration.
Response posted 11/10/2022
Response #2:Yes, the quantity of Item 32 in the plan sheet for 86 CY is correct.
Response posted 11/22/2022
Inquiry #20: Pavement section 1 on the typical cross sections indicates cold plane 0.20' with GPI and 0.20' RHMA. The summary of quantities indicates that pavement section 1 should really be cold plane .25', with 0.10' HMA, GPI, and then 0.20'RHMA. Please either revise pavement section 1, or provide revised quantity sheets that reflect what is currently shown for pavement section 1.
Inquiry submitted 11/10/2022
Response #1:Submitted for consideration.
Response posted 11/10/2022
Response #2:Please see revised sheet Q-1 in Addendum 1.
Response posted 11/22/2022
Inquiry #21: Please provide sample of pre and post construction survey template (sample) drawings that will need to be submitted by our surveyor for the curb ramp reconstruction.
Inquiry submitted 11/14/2022
Response #1:Submitted for consideration.
Response posted 11/15/2022
Response #2:Please see Addendum 1 dated 11/22/2022, Section 73-3 Preconstruction and Post Construction Survey, Spec 73-3.01D(3).
Response posted 11/23/2022
Inquiry #22: Can you please confirm if the UPRR track located at "SR112" Sta. 87+63 is currently in service and will require active railroad flagging during the roadway activities.
Inquiry submitted 11/14/2022
Response #1:Submitted for consideration.
Response posted 11/15/2022
Response #2:Yes. That track is currently in service and will require flagging. Spec 5.120G makes reference to the two locations. The information handout (see “INFORMATIONAL HANDOUT RAILROAD COORDINATION REQUIREMENTSâ€) also references the two railroad crossings that require coordination.
Response posted 11/22/2022
Inquiry #23: The responses to bidder inquiries #2 and #5 regarding utility adjustment and smoothness are in conflict with each other and with the standard specifications. We understand that a 12’ straightedge will be used to measure smoothness. However, the existing utility frame and covers are in conflict with the smoothness requirements. The existing utility frames and covers are often at different grades or slopes than the design grades and slopes for the RHMA-G. Leaving these existing utility frame and covers at their original grade will make smoothness impossible to achieve to specifications. These are not isolated issues, there are close to 600 manholes and utility boxes within the cold plane and overlay limits.
Furthermore, Caltrans standards do require this, section 71-5.03B requires existing frames and covers to be lowered before cold planing and raising after paving or surfacing. Section 71-5.04 says there may be payment items or it can be paid within the paving item. Bid items should be used to provide a level bidding field and provide an accurate bid for the project. Caltrans has a precedence for utilizing bid items on similar projects. Project 04-2K7104 on Hwy 61 in Alameda bid earlier this year and had an almost identical scope. Various bid item codes were used depending on the utility to be adjusted, and the items were included in the summary of quantities on the plans. We reiterate that existing utility frame and covers need to lowered and raised, and bid items need to be added for this scope.
Inquiry submitted 11/16/2022
Response #1:Submitted for consideration.
Response posted 11/16/2022
Response #2:Raising and lowering manhole covers is not required on this project. The Contractor will be required to work around the existing manholes.
Response posted 11/22/2022
Inquiry #24: Will an addendum be issued to address the change in the requirements per standard specification section 71-5.03B: Frames, Covers, Grates and Manholes from lower before cold planing and raising after paving or surface to your response provided in Inquiry #2, that adjusting of the these utilities are not required?
Please note "Responses to bidder inquiries, unless incorporated into 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 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 2-1.07, “Job Site and Document Examination,†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 given previously."
Inquiry submitted 11/18/2022
Response #1:Submitted for consideration.
Response posted 11/21/2022
Response #2:No addendum is planned for this subject. Please refer to the response to bidder inquiry #2. Bid per current contract documents. The contractor is to work around the existing Manholes.
Response posted 11/21/2022
Inquiry #25: There are multiple bidder inquiries that remain to be answered. Please provide answers by 11/21/22 or push the bid date in consideration of the holiday next week.
Inquiry submitted 11/18/2022
Response #1:Submitted for consideration.
Response posted 11/21/2022
Response #2:Please be aware Addendum 1 was posted today. The bid open date is unchanged.
Response posted 11/22/2022
Inquiry #26: Standard spec for cold plane 39-3.04A states to pave back any asphalt milled within the same shift. Please confirm that after milling, then crack treatment will be done, the GPI placed, then RHMA paved all in the same shift or how long after crack treatment until the GPI and RHMA need to be placed?
Inquiry submitted 11/18/2022
Response #1:Submitted for consideration.
Response posted 11/21/2022
Response #2:Cold plane, crack seal, GSI fabric and overlay operations must be done on the same shift as required by 39-3.04A.
Response posted 11/21/2022
Inquiry #27: Based on your responses to Bidder Inquiry #5 and Bidder Inquiry #8, does Cal Trans feel they have submitted their pre bid smoothness data based on the requirements of section 36-3.01D(3)(b) Smoothness Measurement?
The only exclusions we have recognized on Cal Trans data would be the Speed dropouts when Cal Trans had to come to a stop due to the multiple intersections. These speed dropouts show spikes in the 1200 IRI's that are not fully excluded in your data, which have inflated the current smoothness data. (I urge you to look at your Continuous IRI report graph).
Based on Section 36-3.01D(3)(b) mentioned above does Cal Trans feel they have presented the bidders with Accurate profile data by not excluding any intersections, utilities, bridge decks, etc.?
Inquiry submitted 11/22/2022
Response #1:Submitted for consideration.
Response posted 11/22/2022
Response #2:Please follow 2018 Standard Specifications Section 36-3.01D(3)(b)(i) General and Sections 36-3.01D(4) Department Acceptance. Specifically, see the 12-foot straightedge requirements such as manholes, at grade intersections, and traffic lanes less than 1,000 feet in length.
Response posted 11/23/2022
Response #3:Inertial profiling is required outside of areas requiring a 12-foot straightedge. Kindly ignore the inertial profiling data where a 12-foot straight edge is required.
Response posted 11/28/2022
Response #4:For Inertial Profile (IP) exclusion zones please see the links to the files below.
http://website.dot.ca.gov/dist4/construction/contracts/04-0K4904/0k490-Exclusion%20Zones.pdf
http://website.dot.ca.gov/dist4/construction/contracts/04-0K4904/0k490-Exclusion%20Zones.xlsx
Response posted 11/28/2022
Inquiry #28: Tack Coat bid quantity is 82 TN. Is this unnecessary in areas receiving the GPI?
Inquiry submitted 11/22/2022
Response #1:Submitted for consideration.
Response posted 11/23/2022
Response #2:Place the tack coat in areas receiving Geosynthetic Pavement Interlayer (GPI), per the 2018 Standard Specifications Section 39-3.04A. Note, cold plane, crack seal, tack coat, GPI fabric, and overlay operations must be done on the same shift as required by 2018 Standard Specifications Section, 39-3.04A.
Response posted 11/28/2022
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.