Viewing inquiries for 11-408704

Submit new inquiry for this project


Inquiry #1: Will Caltrans allow the use of Zoneguard barrier, in minimum deflection configuration, in lieu of the temporary barrier type K listed in the specs.
Inquiry submitted 07/27/2017

Response #1:Submitted for consideration.
Response posted 07/27/2017


Response #2:Please bid per the current contract documents. Details and specifications for Zone guard barrier are not provided. Modifications to the contract proposed by the contractor may only be considered by the Engineer after contract award. Please refer to Section 4-1.07, value engineering of the Standard Specifications.
Response posted 08/04/2017




Inquiry #2: Per section 2-1.07 the following inquiry is submitted to clarify ambiguity in the bid documents pertaining to application of section 5-1.03 “Engineers Authority”.

Due to the stark inconsistencies in the administration of contract specifications seen throughout the District from one Engineer or Office to another, please advise which Resident Engineer and Senior Resident Engineer will be assigned to this contract by the Department? The assignment of these individuals may significantly affect the costs for the bid.

Inquiry submitted 08/07/2017

Response #1:Resident engineer for this job hasn't been assigned yet. Please bid per the current contract documents.
Response posted 08/07/2017




Inquiry #3: Spec Section 12-3.36A-D in the Special Provisions calls out for portable transverse rumble strips.

1)The strips do not show on the plans. Where are they to be used?
2)What is the measurement and payment for the portable transverse rumble strips?
3)How many strips will be required?

Inquiry submitted 08/07/2017

Response #1:Submitted for consideration.
Response posted 08/07/2017


Response #2:1)The strips do not show on the plans. Where are they to be used?

Portable transverse rumble strips are covered by Special Provisions section 12-3.36A-D and standard plans sheet T13 Traffic Control System for lane closure on Two Lane Conventional Highways (refer to Standard Plans List in the special provisions).

2)What is the measurement and payment for the portable transverse rumble strips?

Please refer to the Standard Plans T13 for size and quantity. Payment is under Traffic Control System item.

3)How many strips will be required?

Please refer to the Standard Plans T13 for size and quantity.

Response posted 08/09/2017




Inquiry #4: The scale does not correspond to the dimensions noted for the ramp termini in the construction details. Please confirm if the scale or noted dimensions are correct.
Inquiry submitted 08/15/2017

Response #1:Submitted for consideration.
Response posted 08/15/2017


Response #2:Construction detail plans for ramp termini concrete are to scale as shown and do agree with dimensions shown. Please bid per the current contract documents.
Response posted 08/16/2017




Inquiry #5: 1. On Sheet Q-7 of the Summary of Quantities, it shows the Joint Seal (Silicone) (226,000 L.F. Bid Item #86) to be applied to Longitudinal Joints. (Summary of quantities shows 225,975.25 L.F.) It would take all Longitudinal Joints on both the Eastbound and Westbound side of the Highway to reach this quantity. Are all the Longitudinal Joints to be sealed on this project? Please confirm.

2. Are the existing Longitudinal Joints on the Highway Sealed? If so, what are they sealed with and is it a hazardous material? Also, what are the widths of the existing Longitudinal Joints?

3. Bid Item #84 Spall Repair (Polyester Concrete) 310 Square yards, are the spalls in this item located along the Longitudinal Joints that are to be resealed?

4. Are the New concrete Ramp Terminis required to have Joint Seal? If so, what are they to be sealed with and how will this be paid?

Inquiry submitted 08/21/2017

Response #1:Submitted for consideration.
Response posted 08/21/2017


Response #2:1. On Sheet Q-7 of the Summary of Quantities, it shows the Joint Seal (Silicone) (226,000 L.F. Bid Item #86) to be applied to Longitudinal Joints. (Summary of quantities shows 225,975.25 L.F.) It would take all Longitudinal Joints on both the Eastbound and Westbound side of the Highway to reach this quantity. Are all the Longitudinal Joints to be sealed on this project? Please confirm.

Yes. All the longitudinal joints will be sealed. Please bid per the current contract documents.

2.
Are the existing Longitudinal Joints on the Highway Sealed?

There may be existing sealants in some joints.

If so, what are they sealed with and is it a hazardous material?

Existing sealant material is not hazardous if encountered.

Also, what are the widths of the existing Longitudinal Joints?

Please bid per the current contract documents.

3. Bid Item #84 Spall Repair (Polyester Concrete) 310 Square yards, are the spalls in this item located along the Longitudinal Joints that are to be resealed?

No. Please refer to Standard Plans P6 for all joint, crack, or edge of concrete repair and miscellaneous spall repair.

4. Are the New concrete Ramp Terminis required to have Joint Seal?

Yes. Please refer to Plan sheet C-66 Construction Details.

If so, what are they to be sealed with and how will this be paid?

Please refer to Section 40 “Concrete Pavement” and Section 9-1.03 “Payment Scope” of the Standard Specifications.



Response posted 09/01/2017




Inquiry #6: WILL CALTRANS ADD ELECTRICAL MATERIALS AS PART OF THE PARTIAL PAYMENTS MADE TO THE CONTRACTOR?
Inquiry submitted 08/24/2017

Response #1:Submitted for consideration.
Response posted 08/24/2017


Response #2:Material cost of eligible electrical items for partial payments is insignificant. Please bid per the current project plans and special provisions.
Response posted 08/30/2017




Inquiry #7: Sheets C-66 shows typical joint layouts for ramp termini. Per these typical, and the project plan dimensions of the 7 JPCP termi, it does not appear that longitudinal joints are required to be placed directly at lane lines. Are joints required at lane lines?
Inquiry submitted 08/24/2017

Response #1:Submitted for consideration.
Response posted 08/25/2017


Response #2:There is no requirements for joints to be at lane lines.
Response posted 08/31/2017




Inquiry #8: Per section 12-4.02c(3)(a) most work in the travel way requires adjacent traffic lane(s) to be closed. Does this apply to the individual slab replacement item or is that considered paving work and thus excluded from this requirement per the standard specification?
For example if adjacent lanes are required to be closed, per charts G1 and G2, slab replacements in lanes 2 or 3 would requires 3 lanes to be closed and work windows would only be 5 hours.

Inquiry submitted 08/24/2017

Response #1:Submitted for consideration.
Response posted 08/25/2017


Response #2:Individual slab replacement item is not considered paving work. Please bid per the current contract documents.


Response posted 08/30/2017




Inquiry #9: Please see Structural Section 6 and section 10 shown in the Typical Cross Sections sheets 2 thru 20 Bid Item 70 RHMA-GG:
Structual Section 6 and 10 both indicate the contractor is to place .25 RHMA-GG (SECTION 6) and .20 RHMA-GG (section 10) over AB. As I am sure the designer is aware, RHMA-GG material is not intended to be placed over AB. AB is an unbound material and will flex when rolling operations are conducted. This will allow the RHMA-GG material to rebound during compaction , cause premature roadway failure and make it impossible to meet the IP Smoothness requirements. Rhma-gg material is intended to be placed over existing HMA or an HMA Type A base course. Please issue an addendum with a proposed structural section that is suited for the existing conditions in the areas mentioned above. Also please adjust Bid Item quantities to reflect the changes required.

Inquiry submitted 08/31/2017

Response #1:Submitted for consideration.
Response posted 09/01/2017


Response #2:Please bid per the current contract documents.

Response posted 09/01/2017




Inquiry #10: Please see Structural Section 6 and section 10 shown in the Typical Cross Sections sheets 2 thru 20 Bid Item 70 RHMA-GG:
Structual Section 6 and 10 both indicate the contractor is to place .25 RHMA-GG (SECTION 6) and .20 RHMA-GG (section 10) over AB. As I am sure the designer is aware, RHMA-GG material is not intended to be placed over AB. AB is an unbound material and will flex when rolling operations are conducted. This will allow the RHMA-GG material to rebound during compaction , cause premature roadway failure and make it impossible to meet the IP Smoothness requirements. Rhma-gg material is intended to be placed over existing HMA or an HMA Type A base course. Please issue an addendum with a proposed structural section that is suited for the existing conditions in the areas mentioned above. Also please adjust Bid Item quantities to reflect the changes required.

Inquiry submitted 08/31/2017

Response #1:Repeated inquiry. Please see response for inquiry #9.
Response posted 09/01/2017




Inquiry #11: Do the Individual Slab Replacements Require Joint Seal around the Perimeter? If so what material are they to be sealed with and how will this be paid?
Inquiry submitted 09/01/2017

Response #1:Submitted for consideration.
Response posted 09/01/2017


Response #2:No. Please bid per the current contact documents.

Response posted 09/01/2017




Inquiry #12: please see structural section 6 .25 RHMA-G, structural section 6A .15 RHMA-G over .15 HMA-A. These two sections require different JMF'S and aggregate gradations due to the thickness of the lifts. Please see the aggregate gradation table below.
39-2.03B(4)(b) Aggregate Gradations
The aggregate gradations for RHMA-G must comply with the requirements shown in the following table:
Aggregate Gradation Requirements
RHMA-G pavement thickness shown Gradation
0.10 to less than 0.20 foot 1/2 inch
0.20 foot or greater 3/4 inch
For RHMA-G, the aggregate gradations must be within the TV limits for the specified sieve size shown in
the following tables:
The design of this project has not taken the Aggregate Gradation table into account when deciding the sections on the ramps and collector lanes. Please see R10S1 LINE AND R5S1 LINE as an example. Both ramps show the contractor switching thickness and mixes mid way down the ramp in a nightly closure. This is not cost effective as this will require multiple mix designs,and production start ups for each mix. Switching mixes also requires creating unnecessary transverse cold joints which will cause premature failure as well as costly corrective grinding. Caltrans must take best paving practices into consideration as well as the cost for additional testing that is incurred by both the state and the contractor for a design like this. It is the intent of Caltrans to improve smoothness on all paving projects statewide. Design strategies like this will not yield this intended result. Please consider issuing an addendum to address the concerns stated above. This will save both the state and contractor time and money on this project.

Inquiry submitted 09/05/2017

Response #1:Submitted for consideration.
Response posted 09/05/2017


Response #2:Please bid per the current contract documents.

Response posted 09/06/2017




Inquiry #13: Section 41 of the Standard Specifications state that removal of existing base is included under this section. Does the removal of existing CTB under individual slabs get paid under BI 66 “Replace Base” or BI 85 “Individual Slab Replacement?” If it is paid under BI 85, please confirm what scope of work is covered under BI 66.
Inquiry submitted 09/05/2017

Response #1:Submitted for consideration.
Response posted 09/05/2017


Response #2:The removal of existing CTB under individual slabs gets paid under Bid Item #66 “Replace Base” Please refer to Section 28-15.02 of the Special Provisions for the scope of the work.


Response posted 09/06/2017




Inquiry #14: Is there a possibility of pushing the bid date back a week?
Inquiry submitted 09/05/2017

Response #1:There are no plans to delay the bid. Please bid per the current contract documents.
Response posted 09/06/2017




Inquiry #15: Standard Plan List and Contract Drawings shows both RSP A77L1 (wood post) and RSP A77L2 (steel post), please clarify what type of post to be use for this project. Thanks
Inquiry submitted 09/08/2017

Response #1:Either wood or steel line posts can be used, except where otherwise shown on Construction Details. Attention is directed to Section 83-2.02C of the Standard Specifications.
Response posted 09/08/2017




Inquiry #16: We require clarification. on multiple pages we have "the symbol for new CNC in an existing area.
Page IP-6- Sta# 715 to Sta #721 also Sta 712 to Sta# 714 shows new not a broken line for existing. The same is shown on Pages IP.7, IP.9 and IP.10. Is this a error and the incorrect symbol or is this to be NEW installed CNC at all shown locations..

Inquiry submitted 09/12/2017

Response #1:Submitted for consideration.
Response posted 09/12/2017


Response #2:Please bid per the current contract documents.
Response posted 09/12/2017




Inquiry #17: PLEASE REFER TO SECTION 6-1.02 OF THE SP. PLEASE CONFIRM THAT ENTIRE ASSEMBLY IS FURNISHED. THERE MAY BE SOME CONFLICTING INFORMATION. WHERE IS THE FURNISHED EQUIPMENT BEING PROVIDED AT?
Inquiry submitted 09/12/2017

Response #1:Submitted for consideration.
Response posted 09/12/2017


Response #2:According to special provisions section 6-1.02, Department will furnish Ramp metering controller assembly. Department furnished equipment can be picked at address provided in section 86-1.01E.
Response posted 09/12/2017






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.