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Viewing inquiries for 04-4J7504
Submit new inquiry for this projectInquiry #1: ITEM #47 (Final Pay), BAR REINFORCING STEEL:
Item is quantified on sheet 78 of 118,Q-1, in the Concrete barrier and Chain link Fence summary table. What rebar and work does this Item represent?
Inquiry submitted 04/27/2022
Response #1:Submitted for consideration.
Response posted 04/27/2022
Response #2:The bar reinforcing steel refers to the 2-#5 @ EACH PILE (See SDS Sheet 2, Section BB and Section CC for location).
Response posted 05/04/2022
Inquiry #2: ITEM #69, ALTERNATIVE CRASH CUSHION:
Please provide Special Provisions Specifications and Manufacturers' drawing for the Alt. Crash Cushions.
Inquiry submitted 04/27/2022
Response #1:Submitted for consideration.
Response posted 04/28/2022
Response #2:See Addendum 2. Replaced bid item with Alternative In-Line Terminal Systems. Added details for two alternatives.
Response posted 06/03/2022
Inquiry #3: ITEM #71, CONCRETE BARRIER, TYPE 60MSC MODIFIED:
Sheet 13 of 118 of the Plans, C-1, shows scuppers spaced at 10' C-C. Please provide dimension details for the scuppers.
Inquiry submitted 04/27/2022
Response #1:Submitted for consideration.
Response posted 04/28/2022
Response #2:Scupper Dimensions are 5†x 30†on the Route 84 Mainline side, and 5.2†x 30.2†on the Marshlands Road frontage side. Spacing is 10’ on centers. Construction Detail C-1 is replaced per Addendum No. 2.
Response posted 06/03/2022
Inquiry #4: ITEM #66, MIDWEST GUARDRAIL SYSTEM (WOOD POST):
Based on Typical Cross Sections on X-1, Guardrail layout on L-1, and Utility Plan U-1, it appears that the Midwest Guardrail posts will interfere with the Fiber Optics lines on the WB shoulder of Marshlands Road. Has the Engineer considered this potential conflict?
Inquiry submitted 04/27/2022
Response #1:Submitted for consideration.
Response posted 04/28/2022
Response #2:The Midwest Guardrail System is off the pavement of Marshlands Road. The utility from MCI lies within the pavement shoulder of Marshlands Road. Hence they are not in conflict.
Response posted 05/05/2022
Inquiry #5: ITEM #52, TEMPORARY FENCE (TYPE CL-6):
Plan sheet 78, Q-1, Concrete Barrier and Chain Link Fence Chart, indicates the Temporary Fence is shown on THQ-1. I find no mention of the Temporary Fence there or elsewhere in the Plans. Where is the Temporary Fence located?
Inquiry submitted 04/27/2022
Response #1:Submitted for consideration.
Response posted 04/28/2022
Response #2:Temporary Fence (Type CL-6) is shown on Construction Detail C-2, surrounding the Contractor’s laydown area.
Response posted 06/03/2022
Inquiry #6: ITEM #46F, ARCHITECTURAL SURFACE (BARRIER):
The Architectural Pattern is shown on sheet 13, C-1 of the Plans. Please provide a name and detailed dimensioning for this pattern.
Inquiry submitted 04/28/2022
Response #1:Submitted for consideration.
Response posted 04/29/2022
Response #2:Architectural pattern is called: Fitzgerald Formliners, Pattern 15405, Estrella Wave. The pattern dimensions are 48" x 96" with maximum depth of 0.75".
Response posted 05/05/2022
Response #3:Details of the architectural pattern can be found in the following link:
http://website.dot.ca.gov/dist4/construction/contracts/04-4J7504/S-15405-GR-6-25-20.pdf
Response posted 05/16/2022
Inquiry #7: Which software program can be used to open the 3 .ppf files?
Inquiry submitted 05/02/2022
Response #1:Submitted for consideration.
Response posted 05/03/2022
Response #2:.ppf files can be processed with ProVal software.
Response posted 05/05/2022
Inquiry #8: Bid Item # 37 Rubberized Hot Mixed Asphalt-Open Grade (Bonded Wearing Course), Should this item be a bonded wearing course or should it be RHMA - Open Grade? The bonded wearing course machine are almost all but gone.
Inquiry submitted 05/03/2022
Response #1:Submitted for consideration.
Response posted 05/03/2022
Response #2:Plans corrected by Addendum No. 2 to reflect Rubberized Hot Mix Asphalt – Open Graded (Open Graded Friction Course)
Response posted 06/03/2022
Inquiry #9: 1) The primary access for the pile driving is going to be from the Marshlands road, can this road be closed for this operation? No place to move the Pile rig too.
2) Marshlands road has no provision for repairs after the competed project. This road is in bad shape and will only get worst, who is responsible for the street repairs?
Inquiry submitted 05/04/2022
Response #1:Submitted for consideration.
Response posted 05/04/2022
Response #2:1. Access to the outer separation (between mainline SR 84 and Marshlands Rd frontage) will only be allowed from the mainline Route 84. Direct access to the outer separation from Marshlands Road is not permitted for heavy equipment due to the presence of shallow utilities within the frontage pavement shoulder. Refer to Note No. 1 of sheet TH-1.
2. With regard to the existing condition of Marshlands Road, attention is directed to Standard Specifications, Section 5-1.36 Property and Facility Preservation.
Response posted 05/06/2022
Inquiry #10: FURNISH 30" PERMANENT STEEL CASING (1/2")
FURNISH PILING (CLASS 140) (ALTERNATIVE X)
What diameter is the pipe and schedule is the pipe?
Need description to properly quote.
Inquiry submitted 05/05/2022
Response #1:Submitted for consideration.
Response posted 05/06/2022
Response #2:This is a 30†diameter casing (1/2†thick) and each is 10’ long. Class 140 Piles are 1’ x 1’ square, and lengths are either 35’ or 45’. Details can be found in RSP B2-5 and on SDS-1.
Response posted 06/03/2022
Inquiry #11: There is no bid item for the Asphalt Emulsion used for the Bonded Wearing Course would an item be added for this work? The Tack Coat item is not the correct material for this application.
Inquiry submitted 05/10/2022
Response #1:Submitted for consideration.
Response posted 05/10/2022
Response #2:Bid item replaced by Rubberized Hot Mix Asphalt – Open Graded (Open Graded Friction Course. Tack Coat is the correct material for this application. Revised per Addendum No. 2.
Response posted 06/03/2022
Inquiry #12: Will the concrete barrier 60MS and 60 MSC on this project considered CIP structural concrete members for material specification, quality assurance and quality control testing?
Inquiry submitted 05/10/2022
Response #1:Submitted for consideration.
Response posted 05/10/2022
Response #2:Attention is directed to Section 51-1.01D(2)(b)(iii) and 51-1.02D of the Special Provisions. Additionally, attention is directed to Section 83 of the 2018 Standard Specifications which specify that concrete must comply with Section 51, which in turn specifies compressive strength as either described or 3,600 psi, whichever is greater.
Response posted 05/23/2022
Inquiry #13: We are looking for clarification for bid item #19 Temporary Reinforced Silt Fence. The plans on page 19 show Type 1, in the specials on page number 26 it shows Type 2.
Inquiry submitted 05/10/2022
Response #1:Submitted for consideration.
Response posted 05/10/2022
Response #2:Plans are correct to show Type 1. Special provision is replaced to confirm Type 1. Revised per Addendum No. 2.
Response posted 06/03/2022
Inquiry #14: Is there a reason to place Temporary Rail on Marshland road, since it is slower city traffic?
Inquiry submitted 05/10/2022
Response #1:Submitted for consideration.
Response posted 05/11/2022
Response #2:Although Marshlands Road is a local street, Temporary Railing will maximize the safety of the motorist and Contractor crew alike.
Response posted 05/13/2022
Inquiry #15: Why is Cellular concrete being used under the barrier? There is no area to set-up a plant to produce this material. It is not delivered in a ready-mix truck.
Inquiry submitted 05/10/2022
Response #1:Submitted for consideration.
Response posted 05/11/2022
Response #2:Cellular concrete is used because subsurface conditions have a high silty-clay content, a poor bearing capacity. Normal weight backfill materials may cause unwanted settlement over time, giving the barrier an uneven profile.
Response posted 05/13/2022
Inquiry #16: Bid item 41 and item 42 Furnish and drive piles are opposite "units of measure" then we normally see. item 41 should be Furnish per LF, 42 should be Drive per Each.
In addition, pay items are (F) final. this creates an issue due to the fact 10 test piles are to be driven and pile length determined by test pile results. This will likely change total LF, therefore final pay is not appropriate for these items.
Inquiry submitted 05/11/2022
Response #1:Submitted for consideration.
Response posted 05/11/2022
Response #2:The units of measure for Items 41 and 42 have been revised. See Addendum no 2. These Items are revised to swap units and quantities for Furnish Pile and Drive Pile. Final Pay designation removed from Furnish Pile. Revised per Addendum No. 2.
Response posted 06/03/2022
Inquiry #17: The OH cable and the temp poles are shown within the Marshlands Road travelled path on Sheet E-2. Please confirm the locations and layout.
Inquiry submitted 05/12/2022
Response #1:Submitted for consideration.
Response posted 05/12/2022
Response #2:Replaced Electrical Plans to place the circuits in their proper location per Addendum No. 2.
Response posted 06/03/2022
Inquiry #18: Please confirm pole type for the new streetlights, E-1 calls for Type 30 Pole and SDS-3 states Type 15 Pole. Additionally the E-drawings don't show any conduit between new poles, please confirm there is no conduit to be installed.
Inquiry submitted 05/12/2022
Response #1:Submitted for consideration.
Response posted 05/13/2022
Response #2:See Addendum 4. The new light poles are identified as Type 15 (Mod) and new conduit is shown connecting new light poles.
Response posted 06/10/2022
Inquiry #19: 1. Please provide cross sections for the south bound side slope grading (12245 LF X 17' wide) as shown on sheets X-1 & X-2.
2. Does Roadway Excavation in the summary of quantities on sheet Q-1, include excavations for the South Bound side slope?
3. Temporary Reinforced Silt Fence shown on the plans only protect work for installation of biofiltration strip along south bound and not the side slope grading work. Please include Temporary Reinforced Silt Fence on South Bound between Stations 543+25 to 628+50 for the side slope grading work.
Inquiry submitted 05/13/2022
Response #1:Submitted for consideration.
Response posted 05/16/2022
Response #2:1. There are no cross sections available for SB Route 84.
2. There is no grading work or roadway excavation on the southbound side of Route 84, only incorporating compost material. Excavation is needed and quantified only for northbound Route 84.
3. Reinforced Silt Fence is only required for the vicinity of the biofiltration strip. No work is allowed in the ESA.
Response posted 05/17/2022
Inquiry #20: 4. Please confirm that all excavations for the Light Weight Cellular Concrete Fill and all excavations for areas below new Concrete Barrier will be measured and paid as part of Bid Item #26, Roadway Excavation bid item.
5. Are we allowed to do excavation & grading work in ESA area of the south bound?
Inquiry submitted 05/16/2022
Response #1:Submitted for consideration.
Response posted 05/16/2022
Response #2:4. This is to confirm that all excavations for the Light Weight Cellular Concrete Fill and all excavations for areas below new Concrete Barrier will be measured and paid as part of Bid Item #26, Roadway Excavation bid item.
5. No work is allowed in the ESA.
Response posted 05/17/2022
Inquiry #21: The architectural treatment for the concrete barrier type 60MSC shows the pattern is to be imprinted from the top of the wall all the way to the very base of the wall. This is not possible as the wall will vary in height for the entire length of the project (the formliner will have to vary as well). This means you will have to buy a unique set of architectural formliner for every inch of the project. Can the state change the limits of the formliner to not follow the varying roadway but a fixed demesion on the wall?
Inquiry submitted 05/16/2022
Response #1:Submitted for consideration.
Response posted 05/16/2022
Response #2:Contractor will need to order as many forms as necessary, and to reuse forms where possible. Detail revised per Addendum No. 2. Specification added per Addendum No. 3.
Response posted 06/03/2022
Inquiry #22: What is the compressive strength of concrete required for Barrier 60 MSC (Mod)?
Inquiry submitted 05/16/2022
Response #1:Submitted for consideration.
Response posted 05/17/2022
Response #2:The applicable section for Bid item 71— CONCRETE BARRIER TYPE 60MSC (MOD) is Section 83, which specifies that concrete must comply with section 51, which in turn specifies compressive strength as either described or 3,600 psi, whichever is greater. Since the compressive strength is not described, it defaults to 3,600 psi.
Response posted 05/19/2022
Inquiry #23: The electrical plan sheets are not complete. On the EQ sheet it reflects 5 new type 30 poles. On the SDS sheet it shows a modified Type 15 pole. On plan sheet L-1, it calls for the existing poles to be relocated but does not state what type of poles are existing.
The plan sheets show no underground conduit, pull boxes nor underground conductors to feed the new or relocated lighting poles. Also the existing underground electrical conduit system is not shown. What is to become of this existing system ? Abandon, Remove or maintain ?
The temp wood poles we are to install as part of the staging have problems as well. The overhead conductor note states 1-#8, that can not be correct. In addition how or where is the temp system being powered ? There is no conduit drop and no point/source of power shown to power up the temp system.
Please correct the electrical plan sheets.
Inquiry submitted 05/18/2022
Response #1:Submitted for consideration.
Response posted 05/18/2022
Response #2:Electrical plans are replaced with sheets that reflect Type 15 pole and new conduit under Addendum No. 2. Conduit will draw power from existing point source.
Response posted 06/03/2022
Inquiry #24: Do items 70 and 71 get any colored concrete, painting or staining?
The plans and specifications do not call out anything but just want to confirm that it will be standard gray concrete.
Inquiry submitted 05/18/2022
Response #1:Submitted for consideration.
Response posted 05/19/2022
Response #2:No color or stain is recommended for the concrete barrier.
Response posted 05/20/2022
Inquiry #25: From the construction duration, paving seems to occur during winter. Will the job be suspended for paving until spring?
Inquiry submitted 05/19/2022
Response #1:Submitted for consideration.
Response posted 05/19/2022
Response #2:The job will not be suspended to the spring, if paving is not the controlling operation. Contractor may perform paving operations so long as the ambient temperature is above 55 degrees Fahrenheit, and surface temperature is at least 60 degrees Fahrenheit.
Response posted 05/20/2022
Inquiry #26: Please provide required end treatments for the guardrail run at "D2R" 663+25 TO 664+20
Inquiry submitted 05/19/2022
Response #1:Submitted for consideration.
Response posted 05/19/2022
Response #2:Replaced sheet with that showing Alternative in-line terminal systems and provided details per Addendum No. 2.
Response posted 06/03/2022
Inquiry #27: Can we use class III Lightweight Cellular Concrete material instead of Class IV if it can meet min. 160 psi strength in 28 days?
Also, some cross sections shows, the LCC is exposed to air, please confirm.
Inquiry submitted 05/19/2022
Response #1:Submitted for consideration.
Response posted 05/19/2022
Response #2:Class III Lightweight Cellular Concrete may be used in lieu of Class IV, so long as it can meet the min 160 psi strength in 28 days. Addressed in Addendum No. 2.
Response posted 06/03/2022
Inquiry #28: Do the Pipe handrail, Temp Pedestrian Bikepath asphalt, LCC need to be removed at the end of the job?
Inquiry submitted 05/19/2022
Response #1:Submitted for consideration.
Response posted 05/19/2022
Response #2:Temporary Pedestrian Bike Path includes LCC ramp, asphalt surfacing and pipe handrailing. Temporary facilities are to be removed when no longer needed. Please refer to section 16-1.03 of the Standard Specifications for temporary facilities.
Response posted 05/20/2022
Inquiry #29: Is the PGE 12kV electric line shown to get the concrete cap is being installed as part of this project or is existing on site? . Shown on Sheet 15, C-3 and Sheet 7, L-4.
Inquiry submitted 05/19/2022
Response #1:Submitted for consideration.
Response posted 05/19/2022
Response #2:The PG&E 12 kV line is existing in place, as shown.
Response posted 05/20/2022
Inquiry #30: Per plan sheet 74 of 118, note #6, "All reinforcement shall be prefabricated epoxy coated reinforcement". Please confirm that this requirement does NOT apply to the precast concrete pile reinforcement rebar, spiral and prestressing strands.
Inquiry submitted 05/19/2022
Response #1:Submitted for consideration.
Response posted 05/20/2022
Response #2:Based on the Corrosion Evaluation on Page 7 of the Preliminary Foundation Report, the subsurface soils at the project site are classified as corrosive. Therefore, all reinforcement should be epoxy coated, including rebars, spirals and prestressing strands used in the precast concrete piles.
Response posted 05/23/2022
Inquiry #31: No Structural Plans, Foundation Plans, nor Log of Borings for this project?
Inquiry submitted 05/24/2022
Response #1:Submitted for consideration.
Response posted 05/24/2022
Response #2:There are no Structure Plans for this project. There is a Site Investigation Report available in the Information Handout.
Response posted 05/25/2022
Inquiry #32: Please provide list of elements for which mockups will be needed. Also, provide details /dimensions for such mockups.
Inquiry submitted 05/25/2022
Response #1:Submitted for consideration.
Response posted 05/25/2022
Response #2:Mockups are required for the Type 60MS Barrier and Type 60MSC Barrier only.
Response posted 06/03/2022
Inquiry #33: Page 74 of 118 calls for prefabricated reinforcement for reinforcement and the reply to in quires #30.
Typically from our experience as precaster , fabricating Caltrans precast piles in corrosive environment, only the rebars extended out of the pile into the pile cap are epoxy coated in the extreme cases, whereas the prestressing strands and spiral wire are not. The pile has 2" cover and the concrete mix are per Caltrans corrosive environment which is for this project too.
These piles are for concrete barriers not critical / emergency structure. . The cost of epoxy strands, rebars and spiral will inflate your project cost exorbitantly when compared to the engineering budget.
Please review the reply to #30 again with the Engineers and hopefully amend that the strands and spiral wire are non epoxy coated .
Inquiry submitted 05/25/2022
Response #1:Submitted for consideration.
Response posted 05/25/2022
Response #2:See Addendum 4. The requirement to use epoxy coating in the Piling (Class 140) (Alternative X) was eliminated. Although it is a corrosive environment, the piles are not exposed to atmosphere.
Response posted 06/10/2022
Inquiry #34: Reply to inquiry #30 and page 74 of 118 contract drawing.
If the spiral wire are to be "prefabricated epoxy coated reinforcement " then the pile is deem extremely challenging to build and costly.
In a precast pile operation , the piles are cast horizontally. The 6" long seismic hook of the spiral wire around the strands are always bent only after the strands are fully stressed and the spiral wire rotated to encompass the strands in a tight fit; to maintain cover.
With the 6" seismic hook being "prefabricated epoxy coated " the hooks at both ends of the spiral wire col will get stuck between the gap of the fully stressed strands, preventing the spiral wire from rotating to get tight fit. Bending the hook will damage the coating.
Please remove the prefabricated epoxy coating requirement for strands and spiral wire . Or allow the use of 3 to 4 extra turns of spiral wire at the lap location and at the ends in-lieu of seismic hook. Otherwise these piles are highly improbable to be constructed .
Inquiry submitted 05/25/2022
Response #1:Submitted for consideration.
Response posted 05/25/2022
Response #2:See Addendum 4. The requirement to use epoxy coating in the Piling (Class 140) (Alternative X) was eliminated. Although it is a corrosive environment, the piles are not exposed to atmosphere.
Response posted 06/10/2022
Inquiry #35: Could you please provide us with more details on the Displacement Monitoring Program (SP-48-5.01D(2))?
-Thresholds.
-Sensitive locations to be monitored.
-Approximate amount of monitoring points.
Inquiry submitted 05/27/2022
Response #1:Submitted for consideration.
Response posted 05/31/2022
Response #2:There is no jacking of permanent or temporary structures. Displacement Monitoring not required. Bid as per current contract documents.
Response posted 06/03/2022
Inquiry #36: Please provide a WEAP Analysis if one has been completed
Inquiry submitted 06/03/2022
Response #1:Submitted for consideration.
Response posted 06/06/2022
Response #2:No WEAP analysis has been performed for this project.
Response posted 06/06/2022
Inquiry #37: Question to Reply to inquiry #30, #33 & 34.
In our experience we do not see prestress strands epoxied in pile designs and have concern that the design strength cannot be met with a coated pre stressing wire. The strands will slip and/or debond from concrete. Please review and comment.
Inquiry submitted 06/03/2022
Response #1:Submitted for consideration.
Response posted 06/06/2022
Response #2:See Addendum 4. The requirement to use epoxy coating in the Piling (Class 140) (Alternative X) was eliminated. Although it is a corrosive environment, the piles are not exposed to atmosphere.
Response posted 06/10/2022
Inquiry #38: As of June 6 10:30 AM we are still waiting on clarification of precast pile design requirements and answers to the open epoxy reinforcement inquires and concerns. (Inquires 30,34, new) I'm requesting Caltrans to provide more time and extend the bid deadline.
Inquiry submitted 06/06/2022
Response #1:Submitted for consideration.
Response posted 06/06/2022
Response #2:Per Addendum 4, Bids for this work will be opened on Wednesday, June 15, 2022, instead of the original date of Wednesday, June
8, 2022.
Response posted 06/07/2022
Inquiry #39: What Height, class, and the treatment preferred for the temporary wood lighting poles?
Inquiry submitted 06/10/2022
Response #1:Submitted for consideration.
Response posted 06/10/2022
Response #2:Please bid per current contract documents.
Response posted 06/14/2022
Inquiry #40: How deep are the drilled foundation holes for the temporary lighting wood poles? What material do you want around the temporary light pole bases? Do you want a down guy wire with a Helical Anchor at each end or one at each pole?
Inquiry submitted 06/10/2022
Response #1:Submitted for consideration.
Response posted 06/10/2022
Response #2:Please bid per current contract documents.
Response posted 06/14/2022
Inquiry #41: Do the pull boxes for the new Type 15 light poles need to be theft resistant? Welded steel lids with the theft deterrent inserts?
Inquiry submitted 06/13/2022
Response #1:Submitted for consideration.
Response posted 06/13/2022
Response #2:Please bid per current contract documents.
Response posted 06/14/2022
Inquiry #42: I could really use and answer for question 39 & 40 please? I have been told that I cannot get a quote without this information.
Inquiry submitted 06/13/2022
Response #1:Submitted for consideration.
Response posted 06/13/2022
Response #2:Please bid per current contract documents.
Response posted 06/14/2022
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.