Bidder Inquiries

Caltrans Bidding Connect Account:

Create Account (Click here to create a Caltrans Bidding Connect Account)

Viewing inquiries for 07-312304

Inquiry #1: Are the quantities for Class 4 and Class 5 permeable materials supposed to be switched?
Should there be a quantity for Class 1 permeable material for BMP #27?
Should there be a geomembrane quantity for BMP #28?
Is the roadway exc. # for BMP #29 correct?
Should the geomembrane quantities for BMP #36 and #37 be switched?
The cross section elevations for Location 19 don't match those given on sheet C-8.
Inquiry submitted 07/16/2018

Response #1:A) Yes the quantities for Class 4 and Class 5 permeable materials been switched. B) Yes there should be quantity for Class 1 permeable material around the GMP riser for BMP#27=17.7 Cubic Yard. C) No geomembrane required. D) Yes 425 Cubic Yard. E) No good as per plan. F) Elevations shown in Profile and Detail on sheet C-8, matched with design file and are correct.
Response posted 07/16/2018

Inquiry #2: Sheet C-11 Location 27 Is the length 280' or 300'?
Inquiry submitted 07/16/2018

Response #1:Design length of BMP 27 (location # 19) for Detention Basin is 280 ft.
Response posted 07/16/2018

Inquiry #3: Sheet C-11 Location 27 Is the length 280' or 300'?
Should there be RSP and RSP fabric at location #15?
Inquiry submitted 07/16/2018

Response #1:Design length of BMP 27 (location # 19) for Detention Basin is 280 ft. Yes there should be RSP and RSP fabric, 6" X 4" X 2" (W x L x T) = 1.8 CY, RSP fabric = 8.9 SqYd
Response posted 07/16/2018

Inquiry #4: Should there be RSP and RSP fabric at location 15?
Are there 5 existing inlets to modify instead of 2?
Inquiry submitted 07/16/2018

Response #1:Yes there should be RSP and RSP fabric, 6" X 4" X 2" (W x L x T) = 1.8 CY, RSP fabric = 8.9 SqYd. Only two existing inlets to modify, see WD -1, Modify Inlet (Side Opening)
Response posted 07/16/2018

Response #2:Yes there should be RSP and RSP fabric, 6" X 4" X 2" (W x L x T) = 1.8 CY, RSP fabric = 8.9 SqYd. Only two existing inlets to modify, see WD -1, Modify Inlet (Side Opening)
Response posted 07/16/2018

Inquiry #5: Is the plastic pipe to be Sch 40, Sch 80 or one of the types listed for 12" and 18" slotted in the special provisions?
Inquiry submitted 07/23/2018

Response #1:The 18" and 24" plastic pipes are corrugated polyethylene pipe or corrugated PVC pipe with smooth interior (Std. Spec. 2015 section 64-2.02A)
Response posted 07/23/2018

Inquiry #6: Is the volumes for structural concrete drainage inlets and miscellaneous metals seem quite low.
Are they?
Inquiry submitted 07/23/2018

Response #1:Total Structural Concrete, Drainage inlet=20.82 CY
Total Miscellaneous Iron and Steel=4224 LB

Response posted 07/23/2018

Inquiry #7: Need to know the spec on the perforated pipe. The ones given for the 12" slotted and 18" slotted are surface drains. Is that what you are looking for out of the 6"?
Inquiry submitted 07/27/2018

Response #1:A) The perforated plastic pipes specification is in 2015 STD Spec. for underdrains. B) The 18" and 24" plastic pipes are corrugated polyethylene pipe (must be Type C or Type S) or corrugated PVC pipe with smooth interior (Std. Spec. 2015 section 64-2.02A), No slotted pipes. C) The perforated plastic pipe in project either 6" or 8".

Response posted 07/27/2018

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.