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Viewing inquiries for 04-1G8604

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Inquiry #1: I would like to receive cross sections for this project.
Inquiry submitted 10/09/2017

Response #1:Submitted for consideration.
Response posted 10/10/2017


Response #2:You can download the cross sections below.

www.dot.ca.gov/dist4/construction/contracts/04-1G8604/XSections_1G8604.zip
Response posted 10/12/2017




Inquiry #2: Plan sheet L-1 shows a new 8" corrugated HDPE line (irrigation conduit sleeve) at NB Loop Line Sta 528. I think the general contractor will need to be paid for "Minor Concrete (Backfill)" which is bid item #61 and "Hot Mix Asphalt(Type A)" which is bid item #53. Would you please adjust those two bid item quantities to reflect this work?
Inquiry submitted 10/11/2017

Response #1:Submitted for consideration.
Response posted 10/12/2017


Response #2:The 8" irrigation conduit at NB LOOP station 528 will be installed at the depth per RSP H-8 and back filled with native material. The pavement structure will be back filled with 1 feet of HMA (type A). The quantity of HMA (type A) is enough to cover this work. Bid per plans and specs.
Response posted 10/13/2017




Inquiry #3: Bid Item #76 is for the removal of 320 LF of chain link fence:
1) It appears the existing fence is in the same location as the new concrete barrier between SB1 Sta. 106+89 to Sta. 110+00. If this is the case won't we need to install temporary fence in this area to secure the Caltrans R.O.W.? New bid item?
2) I think we need a detail at both Sta. 106+89 and Sta. 110+00 to detail the transition from the concrete barrier with fence on top to the existing chain link fence.

Inquiry submitted 10/11/2017

Response #1:Submitted for consideration.
Response posted 10/12/2017


Response #2:1. Existing fence is minimum 1.5 feet from center of new Concrete Barrier. Existing fence will be removed after Concrete Barrier is constructed.

2. A fence post will be installed at 6" from the end of the Concrete Barrier and existing chain link fence will be secured to the post.

Response posted 10/13/2017




Inquiry #4: Plan sheets X-1 & X-1 show an 0.2' lift of AC to be placed under the new concrete barriers. How is contractor paid for furnishing and installing this asphalt?
Inquiry submitted 10/12/2017

Response #1:Submitted for consideration.
Response posted 10/26/2017




Inquiry #5: This project has 610 LF of type 60C concrete barrier. Per the standard specifications this barrier's height ranges from 37.5" to 72". What is the height of the 60C barrier on this project?
Inquiry submitted 10/12/2017

Response #1:Submitted for consideration.
Response posted 10/12/2017


Response #2:Type 60C Concrete Barrier's height ranges from 36" to 72" per standard plan A76A. At the off-ramp side, the height of Concrete Barrier is 36". At the other side of the roadway, the Concrete Barrier's height is varied depending on the surface off-set. In this project, the surface off-set is less than 6".
Response posted 10/13/2017




Inquiry #6: There is a 0.2' thick AC pad under the new concrete barriers. I think this work should be paid under Bid Item #56 "Place AC (Misc. Areas). Also I do not believe the asphalt buy for this work is included in bid item #53. Would you please check and comment?
Inquiry submitted 10/13/2017

Response #1:Submitted for consideration.
Response posted 10/13/2017


Response #2:The 0.2' thick HMA quantity (ton) is included in the HMA quantity. The 0.2' AC pad of HMA which is separated from ES will be paid under place HMA (Misc. Area).
Response posted 10/17/2017




Inquiry #7: What is the road section of the existing ramps?
Inquiry submitted 10/13/2017

Response #1:Submitted for consideration.
Response posted 10/13/2017


Response #2:The existing ramp pavement structure is unknown.
Response posted 10/16/2017




Inquiry #8: Please advise the APC (Alternative Pipe Culvert) for Bid Items 62 and 63.
Inquiry submitted 10/17/2017

Response #1:Submitted for consideration.
Response posted 10/18/2017




Inquiry #9: Do you have a site investigation report that would detail the widths and depths of soil contamination (Type Z-2, aerially deposited lead) on this project?
Inquiry submitted 10/18/2017

Response #1:Submitted for consideration.
Response posted 10/18/2017


Response #2:You can download the ADL Soil Data below:

www.dot.ca.gov/dist4/construction/contracts/04-1G8604/Soil_ADL_Data.pdf
Response posted 10/26/2017




Inquiry #10: The irrigation controllers quoted price does not match the extended price for a quantity of one. Please confirm the Quoted Price is the correct price.
Inquiry submitted 10/25/2017

Response #1:Submitted for consideration.
Response posted 10/26/2017


Response #2:The "quoted prices" shown for the controller are correct.
Response posted 10/27/2017




Inquiry #11: With regards to #8 inquiry - what APC Pipe is acceptable. Gauge, coating etc.
Inquiry submitted 10/26/2017

Response #1:Submitted for consideration.
Response posted 10/27/2017


Response #2:APC options:

>







Alternative Pipe Culverts

Allowable Pipe Material
Designation RCP CSP Plastic Pipe
12" APC Yes Yes (0.079" Thick) Yes (Smooth Interior Wall)
18" APC Yes Yes (0.079" Thick) Yes (Smooth Interior Wall)

Response posted 10/30/2017




Inquiry #12: Bid Item #75 is for Chain Link Fence, Type CL-6, Slatted on top of CB type 60C. The Project Standard Plans List does not call out CT Standard Plan A85 but there is a call-out for Chain Link Railing per Standard Plan B11-7. Please confirm the following:

a. Please confirm if the Chain Link Fence, Type CL-6, Slatted will be installed per Cal-Trans Standard Plan A85 (and Specification Section 80) or will the slatted chain link fence be installed per Cal-Trans Standard Plan B11-7 (and Specification Section 83)?

b. Concerning the post attachment for the chain link fence, Type CL-6, Slatted, please confirm bidders may use either the "Anchorage Detail" or the "Alternate Anchorage Detail" shown on CT Standard Plan B11-7.

c. Concerning the finish for the chain link fence, Type CL-6, Slatted, please confirm if the materials will have a galvanized finish or a vinyl clad finish (and what color if vinyl clad finish)

d. Please confirm the color of slat to be used on the slatted chain link fence.

Inquiry submitted 10/30/2017

Response #1:Submitted for consideration.
Response posted 10/31/2017


Response #2:1. Chain Link Fence (Type CL-6 w/slats) will be installed per CT standard plan B11-7.
2. Bidders may use either "Anchorage Detail" or "Alternate Anchorage Detail" from Standard Plan B11-7.
3. About finish for the chain link fence, either galvanized or vinyl clad finish can be used.
4. Any color of slat can be used.

Response posted 11/01/2017




Inquiry #13: The quantity for Item # 50 Compost doesn't seem to match up with the erosion control areas shown or the depths given on the Erosion Control Legend on ECL-1.
Inquiry submitted 10/31/2017

Response #1:Submitted for consideration.
Response posted 10/31/2017




Inquiry #14: After reviewing the cross sections for the Bernal Avenue southbound on-ramp I noticed that the new concrete retaining wall runs very close to the Caltrans right-of-way line. Section 7.2 of the "Geotechnical Design Report" notes that temporary shoring will be required to build this wall.

I visited the project jobsite and noticed that there is a good 30' wide flat area of land on the other side of the Caltrans right-of-way along the area of the new concrete retaining wall. I need to ask the question why Caltrans did not obtain a 30' wide swatch of temporary right-of-way along this project? A temporary shoring system in this area will cost in the range of $500,000. Caltrans could obtain a temp r.o.w. much cheaper than that. Plus if Caltrans obtained the temp r.o.w. easement the wall itself would be easier and cheaper to build.

Would you please obtain the temp r.o.w. easement?

Inquiry submitted 11/02/2017

Response #1:Submitted for consideration.
Response posted 11/02/2017


Response #2:Question withdrawn.
Response posted 11/03/2017




Inquiry #15: Please ignore the last inquiry (#14). I meant to submit this questions under Caltrans contract #04-4G1154.

Inquiry submitted 11/02/2017

Response #1:Noted.
Response posted 11/03/2017


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.


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