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Viewing inquiries for 02-4H0004

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Inquiry #1: Would Caltrans allow as a design build substitute to provide a structurally equivalent 4' diameter CIDH with the top 5 ft being the original diameter in lieu of the original diameter full depth design ? We would become the Engineer of Record for the 4' diameter with larger diameter CIDH Sign Foundation at the top 5 ft. This way all of the hardware and embed requirements are not affected by our design build approach.

The 4' diameter CIDH would provide the equivalent or greater skin friction area than the original design and would have equivalent or greater moment capacity.
Inquiry submitted 10/30/2023

Response #1:(BI#1) Your inquiry has been received and is being reviewed.
Response posted 10/30/2023


Response #2:(BI#1) Please refer to Section 4-1.07 “Value Engineering” of the Standard Specifications. “Please bid per the current contract documents”.


Response posted 10/30/2023



Inquiry #2: Has this project received any state funds and therefore the mandatory 25% SBE participation required by AB2019 applies ?
Inquiry submitted 11/15/2023

Response #1:(BI#2) - Your inquiry has been received and is being reviewed.
Response posted 11/15/2023


Response #2:(BI#2)-Subcontractor requirements are provided in the contract documents. Bid per current contract documents.
Response posted 11/17/2023



Inquiry #3: Good morning,

Is there anything that would prevent us from using only 3/8 Pea Gravel and Sand aggregates to make all the different mix designs Caltrans specifies ? We are looking to use a portable batch plant system and it only has 2 aggregate bins and using 3/8 Pea Gravel allows for more mix designs. 

I looked and couldn't find anything in the 2023 Standard Specifications that would prevent me from using only 3/8 Pea Gravel and Sand Aggregates. 
Inquiry submitted 11/20/2023

Response #1:(BI#3) - Your inquiry has been received and is being reviewed.
Response posted 11/20/2023


Response #2:(BI#3) - Please read the relevant sections of the Standard Specifications and Special Provisions and bid per current contract documents.
Response posted 11/20/2023



Inquiry #4: Good morning,

Is there anything that would prevent us from using only 3/8 Pea Gravel and Sand aggregates to make all the different mix designs Caltrans specifies ? We are looking to use a portable batch plant system and it only has 2 aggregate bins and using 3/8 Pea Gravel allows for more mix designs.

I looked and couldn't find anything in the 2023 Standard Specifications that would prevent me from using only 3/8 Pea Gravel and Sand Aggregates.
Inquiry submitted 11/20/2023

Response #1:(BI#4) - Your inquiry has been received and is being reviewed.
Response posted 11/20/2023


Response #2:(BI#4) - Refer to the response to Bid Inquiry #3.
Response posted 11/20/2023



Inquiry #5: What base asphalt does Caltrans want for the Asphalt Rubber Binder for the SAMI-R?
Inquiry submitted 12/07/2023

Response #1:(BI#5)-Your inquiry has been received and is being reviewed.
Response posted 12/07/2023



Inquiry #6: Bid item 94 ( 12" rumble) and bid item 96 ( recessed thermoplastic) for the centerline details cannot go together. This is from experience this last season. If you rumble and recess the centerline, the thermoplastic will run into the rumble and you will not have a well defined edge. The rumble is deeper then the recess. With that being said you also can't place recessed retroreflective markers between the centerline skips. Please clarify.
Inquiry submitted 12/07/2023

Response #1:(BI#6)-Your inquiry has been received and is being reviewed.
Response posted 12/07/2023


Response #2:(BI#6)-Bid per current contract documents.
Response posted 12/08/2023

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.