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Viewing inquiries for 11-422304
Submit new inquiry for this projectInquiry #1: Is AASHTO M326 a structural HDPE reline method an acceptable culvert repair solution for bid items 109 through 115?
Thank you.
Inquiry submitted 05/16/2022
Response #1:Submitted for consideration.
Response posted 05/17/2022
Response #2:Please refer to Special Provisions Section 71-3.08 for cured-in-place pipeliners requirements.
Response posted 05/25/2022
Inquiry #2: RE Drainage Unit 4h: Sheets L-4 and DP-3 call 4h out as 36" RCP, but DQ-1 lists it as 24" RCP. Please confirm 4h is 36" RCP as it affects the bid item quantities.
Inquiry submitted 06/03/2022
Response #1:Submitted for consideration.
Response posted 06/05/2022
Response #2:Please refer to Addendum #1, dated June 17, 2022.
Response posted 06/21/2022
Inquiry #3: DD-8 lists RSP at drainage system 4f to be Class V, but DQ-1 quantifies it as Class VII. Please clarify which class of RSP shall be placed at 4f. Thank you.
Inquiry submitted 06/06/2022
Response #1:Submitted for consideration.
Response posted 06/06/2022
Response #2:Please refer to Addendum #1, dated June 17, 2022.
Response posted 06/21/2022
Inquiry #4: Type III – barricades for District 11
1. Is angle iron for the feet and uprights acceptable?
2. Are two sides of reflective stripes for the barricade required or only one?
Inquiry submitted 06/14/2022
Response #1:Submitted for consideration.
Response posted 06/14/2022
Response #2:Please refer to Section 12-3.01B Materials of the specifications for material requirements for Category 2 temporary traffic control devices. Also please refer to Standard Plan A73C, Table 2 - Barricades to determine whether reflective faces are required on one side of barricades or both and bid per current contract documents.
Response posted 06/23/2022
Inquiry #5: This job is scheduled to bid 6/29 right before a holiday; there are other large Caltrans projects with required DBE goals as well bidding the same week (the day after); with the scheduled holiday and pre-determined vacations, it will be extremely hard to collect all required DBE paperwork from our subcontractors and get the package submitted on time per the table in section 2-1.33B(2)(b)(ii), note “Bâ€. We respectfully would like to request a one-time change to the standard specification on the timelines allowed for the paperwork submission. If 8 to 10 calendar days were allotted for this project, that would be very helpful OR a bid extension for this project. Please consider allowing more time for after bid paperwork to be submitted after the holiday weekend, allowing everyone to get back from their vacations.
Inquiry submitted 06/20/2022
Response #1:Submitted for consideration.
Response posted 06/20/2022
Response #2:The receipt of DBE submittal information is required by Federal Statute 49 CFR 26.53(b)(3)(i)(B). Please bid per current contract standards.
Response posted 06/23/2022
Inquiry #6: Per 71-3.08B(1) the minimum thickness is .66" or minimum shown in installation plan, whatever is greater. For the 18", 24", and 30", the design thickness will be much less than .66". 18" and even 24" by .66" may not even be able to be installed as .66 is a very thick liner for 18" and 24" pipe. Will Caltrans drop the .66" requirement, and just base it on Design Thickness? Example 18" will be .3" appx.
Inquiry submitted 06/21/2022
Response #1:Submitted for consideration.
Response posted 06/21/2022
Response #2:The minimum wall thickness for CIPP was specified to account for the abrasion level. Please bid per current contract documents.
Response posted 06/24/2022
Inquiry #7: Please provide existing cross-sections of travel way and shoulders where drainage systems cross the ramps.
Inquiry submitted 06/21/2022
Response #1:Submitted for consideration.
Response posted 06/21/2022
Response #2:Please refer to the Drainage Profiles sheets and Drainage Details sheet DD-12. Bid per current contract documents.
Response posted 06/24/2022
Inquiry #8: Drainage structures 15b, 15c, 17b and 25c do not have sufficient access structures to all for CIPP installation. Will Caltrans pay for the required access improvement/resotration (access pit) via approved Change Order?
Inquiry submitted 06/21/2022
Response #1:Submitted for consideration.
Response posted 06/22/2022
Response #2:Please refer to Addendum #3, dated July 8, 2022 for access to Drainage System #15. Please bid per current contract documents.
Response posted 07/11/2022
Inquiry #9: Drainage structures 15b, 15c, 17b and 25c do not have sufficient access structures to all for CIPP installation. Will Caltrans consider allowing the use of Cementitious Pipeliners listed on Caltrans' AML in lieu of CIPP in these locations?
Inquiry submitted 06/21/2022
Response #1:Submitted for consideration.
Response posted 06/22/2022
Response #2:Please refer to Addendum #3, dated July 8, 2022 for access to Drainage System #15. Please bid per current contract documents.
Response posted 07/11/2022
Inquiry #10: Section 10-1.05 of the Specials allows Temp Steel Plate Bridging, as noted on project plans. After reviewing the plans, no notes for allowable TSPB were found. Please verify where TSPB may be used.
Inquiry submitted 06/22/2022
Response #1:Submitted for consideration.
Response posted 06/22/2022
Response #2:Please refer to Stage Construction and Traffic Handling Quantities sheet SCQ-2 for allowable temporary steel plate bridging locations.
Response posted 06/23/2022
Inquiry #11: Per sheet DP-10, and L-14 existing RCP is to be removed and replaced with RCP CLSM encased. Per SCQ-2 Temporary Steel Plate Bridging Locations , location 12 is not listed. Please clarify how Catrans intends to construct this without the use of plates.
Inquiry submitted 06/23/2022
Response #1:Submitted for consideration.
Response posted 06/23/2022
Response #2:Please refer to Section 65 "Concrete Pipe" of the project Special Provisions for the allowance of Rapid Set Concrete for backfill.
Response posted 06/27/2022
Inquiry #12: Please provide the limits for Item 37 Roadside Clearing.
Inquiry submitted 06/24/2022
Response #1:Submitted for consideration.
Response posted 06/24/2022
Response #2:Please refer to section 20-1.01A and 20-1.03C for the limits of roadside clearing work.
Response posted 06/24/2022
Inquiry #13: What is the Existing Structural Section (AC, ATPB, AB & AS) of ramps where drainage trenches cross?
Inquiry submitted 06/24/2022
Response #1:Submitted for consideration.
Response posted 06/24/2022
Response #2:Please refer to Addendum #3, dated July 8, 2022.
Response posted 07/11/2022
Inquiry #14: Inquiry #12: Please provide the limits for Item 37 Roadside Clearing.
Inquiry submitted 06/24/2022
Response #1:Submitted for consideration.
Response posted 06/24/2022
Response #2:Please refer to section 20-1.01A and 20-1.03C for the limits of roadside clearing work.
Response posted 06/24/2022
Reference Plans Preparation Manual page 2-249
Planting Plan
Planting plans provide a visual
representation in plan view of planting
work in relation to highway facilities.
Planting plans typically show but are not
limited to, the following:
• Roadside clearing limits
ect.
To not include limits precludes determination of the area, and therefore the cost and time for roadside clearing. This is a lump sum item with an ambiguous limits.
Please provide roadside clearing limits.
Inquiry submitted 06/24/2022
Response #1:Submitted for consideration.
Response posted 06/24/2022
Response #2:Please bid per the contract documents. The Plans Preparation Manual (PPM) lists the types of typical work to be found on the Planting Plans. The PPM does not state that roadside clearing limits must be or shall be shown on the planting plans. PPM example sheet E-4 doesn’t’ show or call out roadside clearing limits, but roadside clearing is required according to the Standard Specifications.
Response posted 06/28/2022
Inquiry #15: What are the existing structural section(s) for Jefferson St., El Camino Real, College Blvd., and Vista Village Dr.
Thank you
Inquiry submitted 06/26/2022
Response #1:Submitted for consideration.
Response posted 06/26/2022
Response #2:Please refer to Sheet DD-12 in Addendum #3, dated July 8, 2022.
Response posted 07/11/2022
Inquiry #16: Is the bid date for this project going to get pushed?
Inquiry submitted 06/27/2022
Response #1:Submitted for consideration.
Response posted 06/27/2022
Response #2: Please refer to Addendum #2, dated June 27, 2022.
Response posted 06/27/2022
Inquiry #17: Bid Item 102 has only 1 each Remove Inlet quantity (DS-12J). At Drainage Profiles, DS-15D has Rem/Reinstall G1 Inlet, and DS-30 has (10 each) , DS-33 (1 each) , DS-34 has (1 each) remove median inlet work items. Are these remove median inlet work items incidental to Item 82 Structural Concrete, Drainage Inlet ? Please advise
Inquiry submitted 06/29/2022
Response #1:Submitted for consideration.
Response posted 06/29/2022
Response #2:Please refer to Section 71-2.03 of the Standard Specifications for removal of drainage facilities for Drainage Systems DS-30, DS-33, and DS-34. DS-12j does not include reinstallation of the inlet. DS-15d does not include removal or reinstallation of a G1 inlet. Please bid per current contract documents.
Response posted 07/11/2022
Inquiry #18: Drainage System (DS) 12 is open cut RCP replacement across Route 78. The staging and traffic handling plans show maintenance of traffic in the median and the shoulders only. There are no staging or traffic handling plans for the open cut work on Route 78, nor do the Traffic Charts address that work.
Please advise.
Inquiry submitted 06/30/2022
Response #1:Submitted for consideration.
Response posted 06/30/2022
Response #2:Please refer to Caltrans Standard Plans for standard lane closures. Refer to Chart No. G2 and G7 in the project Special Provisions, which allow closure of two out of the three freeway lanes. Refer to Section 65 of the project Special Provisions for the allowance of Rapid Set Concrete for backfill, which allows the contractor to place material over the backfill once strength is attained. The contractor need not complete the replacement work during one shift. Where only one lane is adjacent to a work area, Section 12-4.02C(4) does not require a buffer lane. Bid per current contract documents.
Response posted 07/06/2022
Inquiry #19: Drainage System DS-4k calls out for Cable Railing of 14.0 LF. The actual wall length of this headwall is 18.0 LF per drainage detail sheet DD-13. Is the intent to have Cable Railing extend the entire length of the headwall? Please advise.
Inquiry submitted 07/06/2022
Response #1:Submitted for consideration.
Response posted 07/06/2022
Response #2:The intent is for the cable railing to extend the full length of the headwall.
Response posted 07/11/2022
Inquiry #20: Bid item 107 Concrete Invert Paving, specifically location 8 has a constructability issue. The two access points to this culvert are 23’ and 50’ deep respectfully where one access point is located outside the Caltrans R/W and the other down a slope. Placing/pumping concrete will be extremely difficult and very costly due to these conditions. Would Caltrans consider lining this 54†culvert with a 54†Cured in Place Pipeliner rather than a Concrete Invert Paving application? Please consider changing this location to the CIPP method.
Will shotcrete be allowed for placement of invert paving concrete?
Inquiry submitted 07/07/2022
Response #1:Submitted for consideration.
Response posted 07/07/2022
Response #2:Two access manholes are present at DS-8 for construction; one is located on Vista Way and the other is within Caltrans R/W. There is a third manhole structure South of Haymar Dr within private property, this one is meant for ventilation purposes during construction. Please refer to Section 71-3.04 of the Special Provisions; shotcrete is not authorized for invert paving. Please bid per the current contract documents.
Response posted 07/11/2022
Inquiry #21: There are a number of inquiries outstanding that identify constructability issues as well as quantity and intent questions. Will an addendum be issued addressing these areas? can the bid date be pushed back to allow for further review after the answers are released?
Inquiry submitted 07/08/2022
Response #1:Submitted for consideration.
Response posted 07/08/2022
Response #2:Please bid per current contract documents.
Response posted 07/11/2022
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.