Viewing inquiries for 10-0G8004

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Inquiry #1: In the Notice to Bidders, it states, "For the Federal training program, the number of trainees or apprentices is 27." Does this mean we are expected to have 27 apprentices to complete this job? Are we required to show this in our bid?
Inquiry submitted 04/29/2013

Response #1: Submitted for consideration.
Response posted 04/29/2013


Response #2: Please refer to Section 7-1.50D "Training" of the Amendments to the Standard Specifications dated May 2006.
Response posted 05/01/2013




Inquiry #2: Please provide PDF file(s) of the cross-sections (including the OG, and the proposed design of Route 12 and driveways), so bidders can reference for quantity take-off.

Thank you

Inquiry submitted 04/30/2013

Response #1: Submitted for consideration.
Response posted 05/01/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #3: Can structural section of existing rte 12 please be provided to quantify true cost of Roadway Excavation?
Inquiry submitted 05/03/2013

Response #1: Submitted for consideration.
Response posted 05/07/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #4: For Bid Item #56, Place HMA Misc Areas, there is no details shown on the plans for where this work will be taking place. Please specify where the HMA Misc Area work is taking place.
Inquiry submitted 05/03/2013

Response #1: Submitted for consideration.
Response posted 05/07/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #5: Inquiry #2 regarding the cross-sections PDF file(s) was submitted on April 30, 2013. Please provide a status update of when these files will be provided to bidders. The cross-sections are needed to complete quantity take-off for bidding purposes.
Thank you,

Inquiry submitted 05/08/2013

Response #1: Submitted for consideration.
Response posted 05/15/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #6: There are no cross section drawings provided with the project drawings, Will Caltrans provide bidders with cross section drawings to do earthwork take off?

Thank you

Inquiry submitted 05/14/2013

Response #1: Submitted for consideration.
Response posted 05/15/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #7: There are various references in the special provisions to a surcharge but we have not found the height of the surcharge in the specials. Does the embankment get a surcharge? If so, what is the height?
Inquiry submitted 05/15/2013

Response #1: Submitted for consideration.
Response posted 05/15/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #8: Please refer to sheet SC-1 of the plans. Section A-A shows the imported borrow to be lightweight aggregate as per the legend on the same sheet. The roadway items table on sheet Q-1 only shows lightweight aggregate at the driveways. Please clarify.
Inquiry submitted 05/15/2013

Response #1: Submitted for consideration.
Response posted 05/15/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #9: Sheet SCD-1 of the plans shows temporary krail and temporary crash cushions at various locations for stage 1 construction, but does not provide begin and end stationing for the temp krail or the temp crash cushion configurations. Please provide this information.
Inquiry submitted 05/15/2013

Response #1: Submitted for consideration.
Response posted 05/15/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #10: Does all the temporary krail on the project get temporary traffic screen? The stage construction and traffic handling plans shows the temp krail but not the temporary traffic screen.
Inquiry submitted 05/15/2013

Response #1: Submitted for consideration.
Response posted 05/15/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #11: Please refer to plan sheet TH-2, traffic handling plan (stage 3). For the plan view there is a call out for "Temp Railing (Type K) Remain Stage 2". However, per section A-A on the same sheet, the temp krail for stage 3 is clearly in a different than in stage 2. Please clarify.
Inquiry submitted 05/16/2013

Response #1: Submitted for consideration.
Response posted 05/17/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #12: Will cold planing be required at each end of the project to conform the new pavement into the existing? If so, please provide any necessary information.
Inquiry submitted 05/16/2013

Response #1: Submitted for consideration.
Response posted 05/17/2013


Response #2:Bid as shown on the current contract documents.
Response posted 06/13/2013




Inquiry #13: Please provide specifications for the geosynthetic reinforcement.
Inquiry submitted 05/20/2013

Response #1:Submitted for consideration.
Response posted 05/20/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/06/2013




Inquiry #14: Due to the project being bid in less than a month, please provide cross-section as soon as possible in order to accurately quantify cut/fill volumes.
Inquiry submitted 05/20/2013

Response #1:Submitted for consideration.
Response posted 05/21/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #15: As of today, 5/21/2013, it has been over 3 weeks since this project advertised and cross sections still have not been provided to the bidders. Without the cross sections bidders cannot perform any necessary engineering and estimating required for the roadway excavation, import borrow, geosynthetic reinforcement, lightweight fill, and shoulder backing including providing truckers and suppliers with the necessary quantity and schedule information they need to quote the project, some of which are DBE’s. As these items are some of the most significant components of this project, every day without the cross sections is essentially a day lost in the bid preparation time period. Therefore, when the cross sections are provided we request that Caltrans postpone the bid date the same number days that it has taken to provide the cross sections. That would give bidders the original bid preparation time period had the cross sections been provided when the project advertised. Thank you.
Inquiry submitted 05/21/2013

Response #1:Submitted for consideration.
Response posted 05/22/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013


Response #3:Refer to Addendum No. 2 dated June 11, 2013. Bids for this work will open on Tuesday, July 16, 2013, instead of the original date of Tuesday, June 18, 2013.
Response posted 06/12/2013




Inquiry #16: Bidders have not had an opportunity to perform earthwork quantity take-off for this proposal, since the cross-sections have yet to be provided. Please postpone the June 18th bid date to allow bidders time to thoroughly perform take-off and consider the information which will ultimately be provided in the cross-sections when they are made available.

Thank you,

Inquiry submitted 05/21/2013

Response #1:Submitted for consideration.
Response posted 05/22/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013


Response #3:Refer to Addendum No. 2 dated June 11, 2013. Bids for this work will open on Tuesday, July 16, 2013, instead of the original date of Tuesday, June 18, 2013.
Response posted 06/12/2013




Inquiry #17: Will any overexcavation, recompaction or other preparation of the existing ground surface or near surface soils be required prior to wick drain installation and/or geosynthetic reinforced embankment construction?
Inquiry submitted 05/22/2013

Response #1:Submitted for consideration.
Response posted 05/22/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #18: According to plans page SCD-1 (64 of 130) there is to be Lower Light Weight Aggregate placed on Driveways and Private roads; however, there are no details provided for these areas. Please provide details or typical cross-section for placement of Lower Light Weight Aggregate at Temporary Construction Entrances.
Inquiry submitted 05/22/2013

Response #1:Submitted for consideration.
Response posted 05/24/2013


Response #2:No additional information to be provided at this time. Bid per existing contract documents.
Response posted 05/30/2013




Inquiry #19: Neither Special Provisions Section 10-1.18 nor the project plans show a falsework opening for the Bouldin Island UC. Please confirm that a falsework opening is not required for the private road.


Inquiry submitted 05/28/2013

Response #1:Submitted for consideration.
Response posted 05/29/2013


Response #2:Please bid per the current contract bid documents.
Response posted 05/30/2013




Inquiry #20: Takeoff shows the final pay quantity for Item 64 "Structural Concrete, Retaining Wall" is about half the actual concrete quantity. Is Caltrans planning on issuing an addendum changing the pay estimate quantity?
Inquiry submitted 05/29/2013

Response #1:Submitted for consideration.
Response posted 05/29/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #21: Is there any remove base and surfacing on the project? If so, please provide plans showing the locations.
Inquiry submitted 05/29/2013

Response #1:Submitted for consideration.
Response posted 05/29/2013


Response #2:No. There is no quantity for remove base and surfacing.
Response posted 06/04/2013




Inquiry #22: Section 10-1.33 of the specials states that the removal of surplus embankment material placed as roadway embankment or surcharge, including material removed to conform to the finished slope lines shown on the plans, will be paid for at the contract price per cubic foot for surcharge removal. There is no surcharge removal bid item that is paid for by the cubic foot. Please clarify.
Inquiry submitted 05/29/2013

Response #1:Submitted for consideration.
Response posted 05/30/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #23: Does the geosynthetic reinforced fabric run the entire length of the project for the complete height of the embankment plus the surcharge, as per the detail shown on C-1? If so, it looks like there may be a significant discrepancy in the engineers estimated quantity for the fabric. Please advise.
Inquiry submitted 05/29/2013

Response #1:Submitted for consideration.
Response posted 05/30/2013


Response #2:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 06/21/2013




Inquiry #24: Section 5-1.13 outlines several instances where monitoring for endangered species is required, sometimes on a daily basis, as required during ground disturbing activities. Which party is responsible to pay for the monitoring, the state or the contractor. Please be specific with your answer.
Inquiry submitted 05/29/2013

Response #1:Submitted for consideration.
Response posted 05/30/2013


Response #2:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 06/21/2013




Inquiry #25: Section 10-1.33 states that "the removal of surplus embankment material placed as roadway embankment or surcharge...will be paid for at the contract price per cubic foot for surcharge removal" Is this refering to the surcharge material that must be removed in advance of the new structural section being placed? If so, there does not appear to be a pay item for this work. Please advise.
Inquiry submitted 05/29/2013

Response #1:Submitted for consideration.
Response posted 05/30/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013




Inquiry #26: 10-1.01 Order of Work, It is stated that the contractor must file for any necessary encroachment permits from San Joaquin Co. and Sacramento Co. Are there any permits required? Is the contractor required to pay for the permits, if so how much will the required permits cost?
Inquiry submitted 06/03/2013

Response #1:Submitted for consideration.
Response posted 06/03/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/04/2013


Response #3:Yes. The Permitee (Contractor) should be required to pay for the Permit FEEs and coordinate with the respective County(ies).
Response posted 06/13/2013




Inquiry #27: When will cross sections and/or 3D CAD be issued? The CAD files as currently provided are only 2 dimensional. It has now been 5 weeks since the project has been advertised and District 10 has yet to resolve this issue after numerous requests. Please issue the cross sections and 3D CAD files and postpone the bid date. Earthwork volumes cannot be determined without these information.
Inquiry submitted 06/03/2013

Response #1:Submitted for consideration.
Response posted 06/03/2013


Response #2:Refer to Addendum No. 1 dated June 3, 2013.
Response posted 06/06/2013


Response #3:Refer to Addendum No. 2 dated June 11, 2013. Bids for this work will open on Tuesday, July 16, 2013, instead of the original date of Tuesday, June 18, 2013. No 3D CAD files were generated for this project.
Response posted 06/12/2013




Inquiry #28: Please clarify BI 27: Remove Culvert and BI 75: 60" Plastic Pipe. Is it the projects intent to both install the 60" plastic pipe and abandon the same pipe?


The bid quantity of BI 77: 36" RCP is 320 lf. The drainage quantities and profiles indicate 499 lf. Please clarify which is correct.


The bid quantity of BI 78: 60" RCP is 520 lf. The drainage quantities and profiles indicate 328.5 lf. Please clarify which is correct.

Inquiry submitted 06/03/2013

Response #1:Submitted for consideration.
Response posted 06/03/2013


Response #2:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 06/14/2013


Response #3:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 06/21/2013




Inquiry #29: The cross sections provided on 6/3/13 for Rt 12 alignment do not include all the information needed by the bidders. The original ground where the embankment is to be constructed is not shown. Without this information the embankment quantity cannot be quantified. When can we expect cross sections that include all the necessary information?
Inquiry submitted 06/03/2013

Response #1:Submitted for consideration.
Response posted 06/03/2013


Response #2:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 06/21/2013




Inquiry #30: The cross-sections released in the Addendum 1 folder posted online for ALN30(Bouldin-Xsec-051113.pdf) do not include the "orginal grade" line. Thus it is not possible for bidders to quantify the quantity of import borrow needed to build to top of surcharge elevation. Please issue cross-sections that include "orginal ground".
Inquiry submitted 06/03/2013

Response #1:Submitted for consideration.
Response posted 06/03/2013


Response #2:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 06/21/2013




Inquiry #31: Bidder's are still waiting for Caltrans to issue cross-sections that show "existing ground" for the new Route 12 alignment. Addendum 1 does not include cross-sections with orginal ground information to quantify the imported borrow. Please postpone the June 18th bid date to provide bidders (and their subs and vendors) time to thoroughly perform take-off and consider the information which will ultimately be provided when complete cross-sections are made available.

Thank you,


Inquiry submitted 06/03/2013

Response #1:Submitted for consideration.
Response posted 06/03/2013


Response #2:Refer to Addendum No. 2 dated June 11, 2013. Bids for this work will open on Tuesday, July 16, 2013, instead of the original date of Tuesday, June 18, 2013.


Response posted 06/13/2013


Response #3:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 06/21/2013




Inquiry #32: In addition to not providing the original ground in the embankment area, the cross sections do not show the variable paving on existing Rt 12 to be performed in stage 1. This information is needed to not only quantify and estimate the variable paving but also the stage 3 roadway excavation. When will Caltrans issue this information?
Inquiry submitted 06/04/2013

Response #1:Submitted for consideration.
Response posted 06/04/2013


Response #2:Refer to Construction Details Sheet C-1 which calls out the variable thickness of the paving.
Response posted 06/06/2013




Inquiry #33: The surchage embankent is designed with the geo fabric to be installed at every 1.0' of fill placed and wraped at the slope faces. The installation of the storm drain lines will cut through multiple layers of fabric during the install. Will the contractor be required to repair the damaged fabric? What will be the acceptable repair?
Inquiry submitted 06/04/2013

Response #1:Submitted for consideration.
Response posted 06/04/2013


Response #2:The means and methods the contractor uses to complete the drainage work will determine the conditions of repair of the Geotextile Reinforcement Fabric. The repair is covered in Special Provisions 10-1.62 “GEOTEXTILE REINFORCEMENT FABRIC” pg 181, paragraph F.
Response posted 06/17/2013




Inquiry #34: In section 10-1.10 it states to use at least 6 corrugated steel panels for each entrance. What size panel is the use of 6 each based on? What is the total sf of panel per entrance that Caltrans is looking for?
Inquiry submitted 06/04/2013

Response #1:Submitted for consideration.
Response posted 06/04/2013


Response #2:Temporary Construction Entrance (Type 2) is listed in 2010 Standard Plans. It is a plan T58 page 253.
Response posted 06/27/2013




Inquiry #35: Section 5-1.13 Species Protection, provides Protection Measures under the subsection for Construction. Protection Measures 2 & 3 provide for construction activities to be performed in limited calendar windows. Specifically the protection measures state that initial ground disturbing activities, as well as in-water and bank-side construction activities, shall occur during the giant garter snake active period (May 1 – Oct 1). Please elaborate in detail as to the activities and items of work that cannot occur on the project after October 1st. Do these dates establish a period from Oct 2 – April 31st where a contractor will not be allowed to perform any type of work?
Inquiry submitted 06/04/2013

Response #1:Submitted for consideration.
Response posted 06/04/2013


Response #2:As long as the conditions are followed in the Special Provisions and Biological Opinion (disturb ground and/or dewater ditches for 15 days between May 1 and Oct 1) then there are no limitations on the work that can be performed throughout the rest of the year. Any dewatering must be completed by October 1st.
Response posted 06/17/2013




Inquiry #36: Addendum 1, Section 10-1.62, Geosynthetic Reinforced Embankment, specifies Backfill that is to comply with requirements in the 2 referenced tables. Is the furnishing and placing of the Backfill required under this section to be paid in Item No. 45 Geosynthetic Reinforcement? Is the volume of Backfill required under this section included in the Imported Borrow quantity?
Inquiry submitted 06/04/2013

Response #1:Submitted for consideration.
Response posted 06/04/2013


Response #2:The placement, volume, and payment of backfill is included in the Imported Borrow quantity.


Response posted 06/06/2013




Inquiry #37: Addendum 1, Section 10-1.62, Geosynthetic Reinforced Embankment, and sheet C-1 reference GRE wrapped at face of slope. Will the contractor need to remove the outside section of geosynthetic reinforcement during Stage 3 to “tie-in” the slope fill on the north side of the roadway? If so, is that cost to be included item no. 45?
Inquiry submitted 06/04/2013

Response #1:Submitted for consideration.
Response posted 06/04/2013


Response #2:Yes, reference Standard Specification Section 19. Cost is included in item No. 37, Roadway Excavation.
Response posted 07/03/2013




Inquiry #38: Section 10-1.60, Wick Drains, please provide information regarding the installation limits of the wick drains referencing the new centerline as a baseline so the contractors can quantify the work to be done.
Inquiry submitted 06/04/2013

Response #1:Submitted for consideration.
Response posted 06/04/2013


Response #2:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 06/21/2013




Inquiry #39: Section 10-1.61, Horizontal Strip Drains, please provide information regarding the installation limits of the strip drains referencing the new centerline as a baseline so the contractors can quantify the work to be done.
Inquiry submitted 06/04/2013

Response #1:Submitted for consideration.
Response posted 06/04/2013


Response #2:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 07/03/2013




Inquiry #40: Addendum 1, Section 10-1.62, Geosynthetic Reinforced Embankment, provides for placement of geosynthetic reinforcement within 3 inches of the design elevations. This section also provides for contractor not to extend geosynthetic reinforcement into pavement structural sections. Please clarify the installation limits in regards to design elevations, i.e. within three inches of top of subgrade or within three inches of top of shoulder backing or within 3 inches of top of surcharge. Will placement of geosynthetic reinforcement extend to the top of surcharge elevation, and thus will need to be removed when removing surcharge?
Inquiry submitted 06/04/2013

Response #1:Submitted for consideration.
Response posted 06/04/2013


Response #2:Per Construction Detail, C-1, The geosynthetic reinforcement will extend to the top of surcharge elevation and will need to be removed when removing surcharge.
Response posted 07/03/2013




Inquiry #41: We have not found the 880 cy of vegetation control (minor concrete) shown on the plans including any details or quanities. Please provide this information.
Inquiry submitted 06/05/2013

Response #1:Submitted for consideration.
Response posted 06/06/2013


Response #2:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 06/21/2013




Inquiry #42: Project plan sheets 95A, and 100A were added in Addendum 1. Plan sheet WPCQ-1, sheet no. 33, does not detail the type of fiber rolls, either temporary or permanent. Based upon the erosion control plans and the locations of the rolls, is the contractor to use Type 1 for all installations?
Inquiry submitted 06/06/2013

Response #1:Submitted for consideration.
Response posted 06/06/2013


Response #2:In Sections 10-1.08 and 10-1.41 it is mentioned that either Type 1 or Type 2 fiber rolls may be used for both the temporary and permanent locations.
Response posted 07/03/2013




Inquiry #43: Section 10-1.33 restricts the rate of vertical roadway embankment. The highest embankment at the Bouldin Island U/C is 22' above OG which leaves 17' above the first 5'. Adding to that the 5’ surcharge, this embankment can take upwards of 34 weeks to construct. Please confirm that the restrictions for vertically constructing roadway embankment apply to the Bouldin Island U/C, and all other embankment. Also please confirm whether bidders will be allowed to increase the rate of vertical roadway embankment at any locations?
Inquiry submitted 06/06/2013

Response #1:Submitted for consideration.
Response posted 06/06/2013


Response #2:Please bid to construct roadway embankment at all locations according to the Special Provisions 10-1.33 Settlement Period & Embankment Loading Rate, and the embankment loading rate(s) given. The settlement rate and the pore water pressure beneath the embankment will be monitored as it is constructed.
Response posted 06/18/2013




Inquiry #44: Section 10-1.33 Settlement Period & Embankment Loading Rate, restricts the rate of vertically constructed roadway embankment. Bidders cannot perform any necessary engineering and estimating for placing roadway embankment until Caltrans provides cross-sections showing ‘original ground’; since bidders do not know how high roadway embankment, including surcharge, will be constructed at any one location. Please postpone the bid date, so bidders can thoroughly consider the information to be provided in the issuance of cross-sections showing ‘original ground’.
Inquiry submitted 06/06/2013

Response #1:Submitted for consideration.
Response posted 06/06/2013


Response #2:Refer to Addendum No. 2 dated June 11, 2013. Bids for this work will open on Tuesday, July 16, 2013, instead of the original date of Tuesday, June 18, 2013.


Response posted 06/13/2013


Response #3:
Response posted 07/03/2013




Inquiry #45: Addendum 1, Section 10-1.62, Geosynthetic Reinforced Embankment, specifies Backfill that is to comply with requirements in the 2 referenced tables. In contrast, plan sheet SC-1, sheet no 61, shows ‘imported borrow’ hatched for the entire volume of consolidation fill. Plan sheet C-1, sheet no. 19, shows ‘imported borrow’ to be placed in the entire volume of the embankment. Please provide a detail clearly showing different hatching for the areas of the embankment prism is to be constructed with ‘Imported Borrow’ and the areas to be constructed using ‘Backfill’ for Geosynthetic Reinforced Embankment. Bidders need this detail to quantify material volumes.
Inquiry submitted 06/06/2013

Response #1:Submitted for consideration.
Response posted 06/06/2013


Response #2:The quantity for the imported borrow is on plan sheet Q-1 and is also represented by the cross section in Addenda 1 and 3.
Response posted 06/21/2013




Inquiry #46: Addenum 1 provided cross sections. The cross section plans do not show existing ground. Without OG, cross sections do not provide contractors to estimate 800,000 cy of fill. Cross sections provided show massive amounts of cut compared to the engieers estimate that shows mass import needed. Please postpone project to provide adequate time for contractors to accurately estimate dirt quantities.
Inquiry submitted 06/06/2013

Response #1:Submitted for consideration.
Response posted 06/06/2013


Response #2:Refer to Addendum No. 2 dated June 11, 2013. Bids for this work will open on Tuesday, July 16, 2013, instead of the original date of Tuesday, June 18, 2013.


Response posted 06/13/2013


Response #3:
Response posted 07/03/2013




Inquiry #47: Please refer to section 10-1.69 of the special provisions. What is the quoted price for the barrier gate? The spec says it will be determined at a later date.
Inquiry submitted 06/06/2013

Response #1:Submitted for consideration.
Response posted 06/06/2013


Response #2:Bidder can use the contact information included in the Notice to Bidders and Special Provisions (located on page 184 in Section 10-1.69) to obtain a cost for the barrier gates.
Response posted 06/26/2013


Response #3:Refer to addendum No. 4 dated July 9, 2013.
Response posted 07/10/2013




Inquiry #48: Addendum #1, Section 10-1.62 Geosynthetic Reinforced Embankment, under backfill placement and compaction it is stated that the relative compaction is to be 90%. Does this supersede the standard 95% relative compaction that is required within 150 feet of the bridge abutments?
Inquiry submitted 06/07/2013

Response #1:Submitted for consideration.
Response posted 06/10/2013


Response #2:No. Section 19-5.04, "Relative Compaction (90 Percent)," of the Standard Specifications read "Relative compaction of not less that 90 percent shall be obtained in all embankment, except as specified herein to be 95 percent." Relative compaction for the Geosynthetic Reinforced Embankment is to be 90%, unless within the 150' of the Structure where compaction would need to be at least 95%.

Response posted 06/18/2013




Inquiry #49: Sheet 81 (Q-1) ; The “Roadway Items” table shows no structural section quantities for the driveways. Sheet 24 (C-6) shows two details for driveways. One for “AB Driveway” and another for “RHMA Driveway”. The corresponding “Table Of Driveways” shows dimensions for the driveways and list them by surface type , AB or HMA. Please clarify whether the paved surfaces are RHMA per the detail or HMA as listed in the table. Also, are these driveway quantities in addition to those shown on sheet 81 (Q-1) or are they included there but not listed separately.
Inquiry submitted 06/07/2013

Response #1:Submitted for consideration.
Response posted 06/10/2013


Response #2:There appears to be a typographical error in the detail on Construction Details Sheet C-6 which should read "HMA Driveway" so that is matches the table on the same sheet. The quantities for these driveways (both HMA and AB) are included in the main quantities for HMA (Type B) and Class 2 AB shown on the "Roadway Items" table on Quantities Sheet Q-1.
Response posted 06/17/2013




Inquiry #50: Section 10-1.32 Earthwork, provides that the portion of imported borrow placed within 4 feet of the finished grade shall have a Resistance (R-Value) of not less than 10. Bidders cannot perform the necessary engineering and estimating for furnishing imported borrow until Caltrans provides cross-sections showing ‘original ground’, so bidders may quantity how much of the imported borrow will be placed within 4 feet of the finished grade, and thus must meet the R-Value 10 requirement. Please postpone the bid date, so bidders can thoroughly consider the information to be provided in the issuance of cross-sections showing ‘original ground’.
Inquiry submitted 06/10/2013

Response #1:Submitted for consideration.
Response posted 06/10/2013


Response #2:Refer to Addendum No. 2 dated June 11, 2013. Bids for this work will open on Tuesday, July 16, 2013, instead of the original date of Tuesday, June 18, 2013.


Response posted 06/13/2013


Response #3:
Response posted 07/03/2013




Inquiry #51: Section 10-1.60 Drainage Wicks, provides that drainage wicks shall be installed from the ground surface to the depth shown on the plans or designated by the Engineer. Addendum 1, Plant Sheet C-1, sheet no. 19, shows drainage wicks installed on a grading plane that slopes toward the collector ditch. Plan sheet SC-1, sheet no. 61, again shows drainage wicks installed on a grading plane that slopes away from existing Rte 12. Are drainage wicks to be installed at the “original ground” surface elevations, or will bidders be required to install a grading plane that slopes to a collector ditch prior to the installation of drainage wicks? If a grading plane is to be installed, please specify the slope the grading place is to be finished at.
Inquiry submitted 06/10/2013

Response #1:Submitted for consideration.
Response posted 06/10/2013


Response #2:Yes. A grading plane does not need to be installed.
Response posted 07/03/2013




Inquiry #52: Due to the nature of project, cross sections are a vital part of the estimate and phasing of construction, without precise and accurate cross sections, project cannot be bid accordingly. Please postpone project bid date to allow sufficient time for contractors to quantify earthwork quantities.
Inquiry submitted 06/10/2013

Response #1:Submitted for consideration.
Response posted 06/10/2013


Response #2:Refer to Addendum No. 2 dated June 11, 2013. Bids for this work will open on Tuesday, July 16, 2013, instead of the original date of Tuesday, June 18, 2013.


Response posted 06/13/2013


Response #3:
Response posted 07/03/2013




Inquiry #53: For bid item 19, temporary hydraulic mulch, could you please provide the application rates for the fiber and tackifier?
Inquiry submitted 06/10/2013

Response #1:Submitted for consideration.
Response posted 06/11/2013


Response #2:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 06/21/2013




Inquiry #54: Does Sheet C-1 detail show the full height of the embankment fill including the surcharge. Is the surcharge material required to be wrapped as the embankment fill is?
Inquiry submitted 06/10/2013

Response #1:Submitted for consideration.
Response posted 06/11/2013


Response #2:Yes. Sheet C-1 detail shows the full height of the embankment fill including the surcharge. The surcharge material is required to be wrapped as the embankment fill is.
Response posted 06/17/2013




Inquiry #55: Plan sheet SC-3, sheet no. 63, shows “remove base and surfacing” and “construct side slopes on the left side” in the “Construction Sequence” for Stage 3. Plan Sheet X-1, sheet no. 2, shows the side slopes on the left side being installed on top of the base and surfacing of existing Rte 12, and the toe ditch being excavated into the AC section of existing Rte 12. Section 15-2.02A Obliterating Roads and Detours, in the 2006 Standard Specs, provides for wherever a portion of existing surfacing is to be obliterated, the outside edge of the existing surfacing, which is to remain in place, shall be sawed to a neat line, prior to obliteration operations. Will the contractor be required to sawcut existing Rte 12? Does section 15-2.02A apply to the construction of side slopes on the left side?
Inquiry submitted 06/10/2013

Response #1:Submitted for consideration.
Response posted 06/11/2013


Response #2:No sawcutting is anticipated for Stage 3 sequence.
Response posted 07/03/2013




Inquiry #56: Plan sheet SC-3, sheet no. 63, shows “remove base and surfacing” and “construct side slopes on the left side” in the “Construction Sequence” for Stage 3. Plan Sheet X-1, sheet no. 2, shows the side slopes on the left side being installed on top of the base and surfacing of existing Rte 12, and the toe ditch being excavated into the AC section of existing Rte 12. Section 19-6.01 Placing, in the 2006 Standards Specs, provides for when embankment is to be placed on an existing roadway, the existing roadbed shall be scarified, watered, graded and rolled in advance of placing new material thereon. Please confirm the contractor will be required to comply with Section 19-6.01 in the construction of side slopes on the left side, and that Section 15-2.02A does not apply to the construction of side slopes on the left side.
Inquiry submitted 06/10/2013

Response #1:Submitted for consideration.
Response posted 06/11/2013


Response #2:The Contractor will be responsible for constructing the proposed left side slopes in accordance with Section 19-6.01 after removing the existing asphalt layer on SR 12 per Section 15-2.02A.
Response posted 06/17/2013




Inquiry #57: Plan sheet SC-1, sheet no. 61, provides for the contractor to construct consolidation fill to include openings for existing driveways shown on plan sheet SCD-1. Plan sheet SC-2, sheet no. 62, provides for the contractor to construct new roadway. In order to construct the new roadway in Stage 2, the contractor will need to install roadway embankment at the driveways shown on plan sheet SCD-1. Please confirm the roadway embankment to be installed at the driveway locations on plan sheet SCD-1 will not require surcharge and thus not require a settlement period. Also please confirm the roadway embankment to be installed at the driveway locations on sheet SCD-1 is to be performed in Stage 2.
Inquiry submitted 06/10/2013

Response #1:Submitted for consideration.
Response posted 06/11/2013


Response #2:The roadway embankment at the existing driveway locations will not require surcharge or a settlement period. The final embankment for these locations will be installed in stage 2.
Response posted 06/17/2013




Inquiry #58: Plan sheet SC-1, sheet no. 61, provides for the contractor to construct consolidation fill to include openings for existing driveways shown on plan sheet SCD-1. Plan sheet SC-2, sheet no. 62, provides for the contractor to construct new roadway. In order to construct the new roadway in Stage 2, the contractor will need to install roadway embankment at the driveways shown on plan sheet SCD-1. Is the roadway embankment to be installed at the driveway locations on plan sheet SCD-1 “Imported Borrow”? If not “Imported Borrow” what is the specification of the material to be used for roadway embankment at the driveways shown on plan sheet SCD-1?
Inquiry submitted 06/10/2013

Response #1:Submitted for consideration.
Response posted 06/11/2013


Response #2:Contractor may bid this portion of the work using the lightweight aggregate specification per Stage Construction Detail Sheet SCD-1.


Response posted 06/18/2013




Inquiry #59: Will the bid quantities be corrected to correspond with the cross sections issued in Addendum #1 or will the cross sections be corrected to correspond with the the bid quantities?

Please advise as to when this might take place as we don't want to waste resources working on the current cross sections if they are inaccurate.

Inquiry submitted 06/19/2013

Response #1:Submitted for consideration.
Response posted 06/19/2013


Response #2:Refer to Addendum No. 3 dated June 19, 2013.
Response posted 06/21/2013




Inquiry #60: Typical Cross Section show that Shoulder Backing is only required on the south side of the proposed roadway. Is this correct?
Inquiry submitted 06/24/2013

Response #1:Yes, shoulder backing is only required on the south side of the proposed roadway.
Response posted 06/27/2013




Inquiry #61: Response #2 to Inquiry #47 refers bidders to contact information included in the Notice to Bidders and Special Provisions (located on page 184 in Section 10-1.69) to obtain a cost for the barrier gates. The information listed for the 'Distributor' on page 184 in Section 10-1.69) does not appear to be current, because phone calls are not answered. Please confirm bidders are to include the cost for furnishing Barrier Gates in their bids, and that Barrier Gate material is not a Caltrans furnished item. Please confirm if Caltrans has negotiated a price for the Barrier Gate material.


Inquiry submitted 07/02/2013

Response #1:Submitted for consideration.
Response posted 07/02/2013


Response #2:Refer to addendum No. 4 dated July 9, 2013.
Response posted 07/10/2013




Inquiry #62: Please provide a bid item for the HMA leveling that is to be placed on existing Hwy 12. Presently, this work is lumped in with the mainline paving on the new alignment.

We also will need some sort of cross sections to quantify the 18,500 tons shown in the quantity tables. This information is needed to accuratly estimate the cost to perform this work. Thank you.

Inquiry submitted 07/03/2013

Response #1:Submitted for consideration.
Response posted 07/03/2013


Response #2:No additional information will be provided at this time.
Response posted 07/09/2013




Inquiry #63: How will Cal Trans measure and pay for the settlement of the embankment fill during the time that it is under construction? According to the geotechnical report the primary consolidation of both the clay and peat layers will occur during the construction of the embankment and surcharge and may be as much as 3 meters vertically which would translate into approximately 600,000cy?
Inquiry submitted 07/03/2013

Response #1:Submitted for consideration.
Response posted 07/05/2013


Response #2:The placement of the embankment/surcharge will be paid for as imported borrow and any excess surcharge to be removed after settlement will be paid for as roadway excavation. The settlement will be monitored by the Engineer during construction.
Response posted 07/09/2013




Inquiry #64: Inquiry 24 was not answered. The question was, which party is responsible for paying for the monitoring (meaning the costs for all biologist time that will be required), the state or the contractor? It is not currently spelled out very clearly in the Special Provisions. Thank you.
Inquiry submitted 07/03/2013

Response #1:Submitted for consideration.
Response posted 07/05/2013


Response #2:"Measurement and Payment" paragraph language in Section 5-1.13 "Species Protection" in the Notice to Bidder and Special Provisions, the Contractor is responsible for any daily monitoring.
Response posted 07/09/2013




Inquiry #65: Please confirm that the contractor is only required to remove up to 6" of existing base and surfacing as spelled out in 10-1.30 of the project specials (pg. 118).
Inquiry submitted 07/03/2013

Response #1:Submitted for consideration.
Response posted 07/05/2013


Response #2:Negative. In Section 10-01.30 under the "Remove Base and Surfacing" paragraph - the text mentions that "Existing base and bituminous surfacing shown on the plans to be removed, shall be removed to a depth of at least 6 inches below the grade of the existing surfacing". In addendum #1 the existing structural section of SR-12 was added as a redline to the Typical Cross Section on Sheet X-1 and has a depth of 0.55'. In accordance with 2006 Standard Specifications Section 15-2.02A this layer of asphalt will need to be removed.
Response posted 07/09/2013




Inquiry #66: Addendum No. 1 includes an “Additional Information Handout”. Included in the Handout are the Geotechnical Design Report, and the Supplemental Recommendations to Geotechnical Design Report. These documents reference settlement; specifically Primary and Secondary Consolidation. According to the reports the settlement occurring during construction may range from 1 to 4 meters (3.28 to 13.12 feet). This is a significant rate of subsidence to potentially occur during the placement of embankment fill prior to the embankment reaching the design elevation of 5’ above PG for the required surcharge. What rate of subsidence was used by Caltrans to determine the 800,000 CY of imported borrow?
Inquiry submitted 07/03/2013

Response #1:Submitted for consideration.
Response posted 07/05/2013


Response #2:The subsidence/settlement rate was estimated based on the current design of a 5 foot surcharge for most of the project (5'-15' for areas within the undercrossing) which is mentioned in Section 10-1.33 Settlement Period and Embankment Loading Rate of the Notice to Bidders and Special Provisions. Any subsidence calculations should be based on this.
Response posted 07/11/2013




Inquiry #67: Section 5-1.06 Surface Mining and Reclamation Act of the Notice to Bidders and Special Provisions requires that Imported Borrow comply with SMARA. The Bid Item List shows an estimated quantity of 800,000 CY for Imported Borrow. Due to the significant quantity of Imported Borrow, will Caltrans accept Imported Borrow that does not comply with SMARA?
Inquiry submitted 07/03/2013

Response #1:Submitted for consideration.
Response posted 07/05/2013


Response #2:No. SMARA allows the State Mining and Geology Board (SMGB) to exempt certain surface mining operations or construction projects. Caltrans can accept materials from exempted sources if the contractor provides proof of the SMGB-granted exemption.
Response posted 07/09/2013




Inquiry #68: Section 10-1.32 Earthwork of the Notice to Bidders and Special Provisions specifies the portion of imported borrow placed within 4 feet of the finished grade shall have a Resistance (R-Value) of not less than 10. Because of the probability of subsidence and settlement, and these effects on the proposed roadway embankment in relation to finish grade, most of the Imported Borrow will need to meet the R-Value of not less than 10. Due to the significant quantity of Imported Borrow, will Caltrans accept Imported Borrow which does not meet the requirement for R-Value of not less than 10 for material within 4 feet of the finished grade?
Inquiry submitted 07/04/2013

Response #1:Submitted for consideration.
Response posted 07/05/2013


Response #2:No. Bid per current contract documents.
Response posted 07/10/2013




Inquiry #69: Plan Sheet SC-3 calls for removal of the base and surfacing (no bid item for this work). Inquiry 21, response 2 says that there is no quantity for this work. Inquiry 56, response 2 says it is to be removed prior to placing slopes per Section 15.2-02A of the Standards, however, Section 15-2.02A allows for the material to be left in place.

Please clarify what is to happen with the existing roadway material. If is is to be removed, please provide information on the existing section and a means to quantify this work (if required).

Inquiry submitted 07/05/2013

Response #1:Submitted for consideration.
Response posted 07/05/2013


Response #2:Section 15-2.02A mentioned that "Unless specified in the special provisions, obliteration shall consist of placing an earth cover of not less that 0.5-foot in thickness or shall consist of rooting, plowing, pulverizing or scarifying to a minimum depth of 0.5-foot or to the bottom of the impermeable underlying base, whichever is greater". In addendum #1 the existing structural section of SR-12 was added as a redline to the Typical Cross Section on Sheet X-1. The existing asphalt concrete depth on SR-12 is 0.55'. Therefore per the text in Section 15-2.02A above, since 0.55'>0.5' the impermeable section will need to be removed. This removal will be paid for as roadway excavation.
Response posted 07/09/2013




Inquiry #70: Section 5-1.13 Species Protection of the Notice to Bidders and Special Provisions, provides Protection Measures under the subsection for Construction. Protection Measure 3 provides for “dewatered habitat” to remain dry for a minimum of 15 days before the Contractor can excavate or fill “dewatered habitat”. What are the limits of “dewatered habitat”? Is “dewatered habitat” only from top to top of ditches containing water, or does “dewatered habitat” include the areas adjacent to ditches? Will contractors be allowed to initiate ground disturbing activities, such as clearing the areas in stage 1 prior to the 15 days required in Measure 3?
Inquiry submitted 07/08/2013

Response #1:Submitted for consideration.
Response posted 07/09/2013


Response #2:No additional information is available at this time. Contractor to bid project using current contract documents.
Response posted 07/17/2013




Inquiry #71: Section 10-1.33 Settlement Period & Embankment Loading Rate, refers to limits of the height of surcharge from OG. Is the filling of the existing ditch under the surcharge subject to these requirements/limits?
Inquiry submitted 07/09/2013

Response #1:Submitted for consideration.
Response posted 07/09/2013


Response #2:No - filling of the existing ditch under the surcharge is not subject to the embankment loading rates from Section 10-1.33 Settlement Period & Embankment Loading Rate. It is still subject to the settlement period portion of that spec and subject to the earthwork spec. The embankment loading rates will begin once the ditch is filled in, and the wick drains are installed.
Response posted 07/11/2013




Inquiry #72: Please confirm that the Wick Drain spacing is 5 ft triangular, although Plan C-2 presents that Wick Drains that share a common strip drain are less than 5 ft.
Additionally, please clarify a refusal criteria when wick drains have penetrated the entirety of the soft compressible soils and anchored in the granular soils when this length is less than 60 ft.

Inquiry submitted 07/10/2013

Response #1:Submitted for consideration.
Response posted 07/10/2013


Response #2:The wicks drain spacing is 5 ft. triangular.

Per the drainage wick spec:

“Where obstructions are encountered which the drainage wick cannot be driven through, as determined by the
Engineer, the Contractor shall abandon the drainage wick in place. At the direction of the Engineer, the Contractor
shall install a new drainage wick within 20 inches of the obstructed drain. A maximum of two attempts shall be
made, as directed by the Engineer, for each obstructed drainage wick.”

If wick drains do not reach the design depth of 60 feet, the Engineer will determine whether or not an additional wick drain will be attempted at that location or if the depth reached is acceptable.

Response posted 07/11/2013




Inquiry #73: Questio #63 asked how Caltrans would pay for the settlement (subsidence) that will occur during construction operations. Caltrans stated in Response 2 that "The settlement will be monitored by the Engineer during construction". What is the Method of Measure that will be used to determine the quantity of import material that will be lost to subsidence during construction? This amount can be in excess of 600,000 cy. Please confirm that all material imported including Subsided material during construction of Embankment and Surcharge will be paid for as Import Borrow.


Inquiry submitted 07/10/2013

Response #1:Submitted for consideration.
Response posted 07/11/2013


Response #2:The settlement will be measured according to Section 10-1.34 "Instrumentation Installation and Monitoring" in the Notice to Bidders and Standard Provisions and the settled material will be paid for as imported borrow.
Response posted 07/11/2013




Inquiry #74: Please confirm that the l.f. of strip drains is 22,700 l.f. for the entire project including both the longitudinal running the entirety of the project, and the lateral strip drains that are placed at 50 ft increments.
Inquiry submitted 07/11/2013

Response #1:Contractors should bid using the current contract documents.
Response posted 07/15/2013






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.