Viewing inquiries for 11-0223U4

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Inquiry #1: Please provide the following files, in the spirit of PD-06, to expedite earthwork, paving and pipe takeoff and improve accuracy and reduce risk and uncertanty, ultimatly saving the taxpayer money.

1)A single LandXML file containing the vertical and horizontal roadway alignments.

2)An original or existing ground surface LandXML that includes the TIN, breaklines, and one overall boundary.

3)A design surface LandXML (one file or as many as needed for the project) that represents finished grade/subgrade or both. The design surface should also include the TIN, breaklines and one overall boundary.

Thank you in advance

Inquiry submitted 08/29/2014

Response #1:Submitted for consideration.
Response posted 08/29/2014




Inquiry #2: 1) Section 15, bid item #35: what is the depth and diameter of each of the 7 slope inclinometers to be abandoned?

2)Section 19-11, bid items #94 and #95: what are the diameters of the 6 slope inclinometers to be installed?

Inquiry submitted 09/04/2014

Response #1:Submitted for consideration.
Response posted 09/05/2014


Response #2:1) All existing inclinometers are 2 1/4" in diameter and depths are as follows:

SI #1 = 58
SI #2 = 92
SI #3 = 88
SI #4 = 42
SI #5 = 58
SI #6 = 90
SI #7 = 90

2) See Section 19-11.04 of the Special Provisions (The the inclinometer casing inside diameter must be 2 5/16" and outside diameter is 2 3/4")

Response posted 09/15/2014




Inquiry #3: Reference Bid Item No. 159 - Jointed Plain Concrete Pavement. Tpyically there is a bid item (item code 404092) to pay for the sealing of the weakend plain joints in the JPCP (see payment clause in the first paragraph of section 40-1.04 of the Standard Specifications). Will an item be added or are we to assume that the sealing of the WPJ is incidental to the JPCP bid item?
Inquiry submitted 09/05/2014

Response #1:Submitted for consideration.
Response posted 09/05/2014


Response #2:Sealing of the weakend plain joints is not required on this project.
Response posted 09/15/2014




Inquiry #4: Reference plan sheet 297 and 298. The water quantities table has a column for "Abandon Water Line" with a corresponding bid item no. 248. The table also has a column for "Remove Water Line (N)" - for information only. Will the water line be removed by others? If not, and the contractor is responsible to remove the water line, where will the removal of the water line be paid?
Inquiry submitted 09/09/2014

Response #1:Submitted for consideration.
Response posted 09/10/2014


Response #2:The quantities listed as "Remove Water Line (N)" are coincident with other work and are included in other pay items. For example, on sheet U-13 the 130 LF of "Remove Water Line (N)" is included in the pay items for constructing the new water lines since removal of the existing reclaimed water line is required to construct the new water lines.
Response posted 09/15/2014




Inquiry #5: Bid Items #249, #250 & #251: 24” & 36” Cement Mortar Lined Pipe: Does the 24”or 36” size mean the clear ID of the pipe after lining ? Please advise since there are available different pipe types with the same nominal size (Cylinder OD based pipe or clear ID based pipe)
Inquiry submitted 09/10/2014

Response #1:Submitted for consideration.
Response posted 09/10/2014


Response #2:Per AWWA, Steel O.D. for 36" pipe is 37-7/8", and for 24" pipe is 25-3/4".
These O.D.s are prior to mortar coating.

Response posted 09/15/2014




Inquiry #6: Bid Item #251: We are asking to allow the Polyurethane Coating material as Specified in AWWA C222 as an alternate to the fusion bonded epoxy coating. San Francisco Public Utilities uses exclusively AWWA C222 Polyurethane for both lining and coatings on their high seismic areas. Please advise.
Inquiry submitted 09/10/2014

Response #1:Submitted for consideration.
Response posted 09/10/2014


Response #2:Substitution not allowed. Pipe shall be Fusion Bonded Epoxy Coated in accordance with plans and specs.
Response posted 09/15/2014




Inquiry #7: Buy America requirement: It is not clear if for this project the supply of materials must meet Buy America clause. Please clarify
Inquiry submitted 09/10/2014

Response #1:Submitted for consideration.
Response posted 09/10/2014


Response #2:See section 6-2.05 Buy America of the Revised Standard Specifications.
Response posted 09/15/2014




Inquiry #8: Reference plan sheet 605 - Facing Detail. This detail makes reference to "Free Draining Material" to be placed within the wire baskets. Please provide gradation and material type that will be required for the "free draining material".
Inquiry submitted 09/12/2014

Response #1:Submitted for consideration.
Response posted 09/12/2014






The information provided in the responses to bidder inquiries is not a waiver of Section 2-1.03, “Examination of Plans, Specifications, Contract, and Site of Work,” 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.