The responses to bidder's inquiries, unless incorporated into a formal addendem to the contract, are not a part of the contract and are provided for the bidder's convenience only. In some instances, the question and answer may represent a summary of the matters discussed rather than a word-for-word recitation. The availability or use of information provided in the responses to bidder's inquiries is not to be construed in any way as a waiver of the provisions of Section 2-1.03 of the Standard Specifications or any other provision of the contract, the plans, Standard Specifications or Special Provisions, nor to excuse the contractor from full compliance with those contract requirements. Bidders are cautioned that subsequent responses or contract addenda may affect or vary a response previously given.
Q1) On the typical cross section sheets X-3 thru X-5 cold planing is called out for on existing outside shoulders. These shoulders are also called out to be reconstructed. What is the need for the cold planing? Shouldn't this cold plane area of these shoulders be considered roadway excavation?
A1) The shoulder will first be reconstructed to match the existing ETW. Where cold planing is called out the reconstructed shoulders are to be cold planed along with the existing lanes. 2Sep10.
Q2) When and where will cross sections and as builts be made available?
A2) Cross Sections are now available for purchase at MJ's Copycats, 5096 N. Blythe Avenue, Fresno, CA, 93722, (559) 271-7848. 9Sept10.
Q3) We are looking to bid on the barrier for this project. We are needing the cross sections for this project in order to bid on the type 60C barrier rail, especially considering that there are 69,300 LF of the type 60C rail. Without the cross sections, we cannot identify the height variable, which causes an inaccurate estimate on the CY of concrete, labor, and material costs. Most Caltrans jobs include cross sections, and with this job it is absolutely necessary due to the many variables throughout the whole thing. When will they be available to view?
A3) Cross Sections are now available for purchase at MJ's Copycats, 5096 N. Blythe Avenue, Fresno, CA, 93722, (559) 271-7848. Please see sheet C-11 for a table of the H variable for the Type 60C Concrete Barrier. 9Sept10.
Q4) If the California State Budget is not approved prior to the current bid date will this contract be delayed and or postponed indefinitely?
A4) Yes, if California State Budget is not approved prior to the scheduled bid opening date, an addendum will be issued to postpone the bid opening indefinitely. 13Sept10.
Q5) Is the bridge removal at location "I" a (portion)as stated on page 632 of 687 quantities or an entire replacement per the bid item number and description on page 141 of the specifications?
A5) No, the entire bridge is to be removed. See Item #59, "Bridge Removal, Location I," on page 5 of the special provisions in the Copy of the Bid Item List. 22Sept10.
Q6) If this location (Location "I") is a replacement, what is the staging plan?
A6) Location I is to be reconstructed during the southern cross median detour of Stage 4. 28Sept10.
Q7) Various layout sheets have callouts for the beginning and ending of the shoulder widening. These callouts do not appear to match the typical sections. Please clarify the limits of the shoulder widening. Are the limits per the callouts on the layout plans or per the stationing of the typical cross sections?
A7) Please use the limits shown in the Typical Cross Sections. The reconstruction of the structural section of the shoulders will continue through the existing ramp structural sections. 14Oct10.
Q8) SP pg 51 – 4th paragraph – Reads the Fish and Wildlife Service “Biological Opinion” of the Information Handouts calls for only 100 nights total for the project. We are seeking clarification: • Does the State truly only want 100 night shifts over the course of this 600 working day project? • Please re-examine those lane closure charts which do not allow for lane closures during the day? We will need lane closure in order to have safe passage of our trucks which will be exiting /entering the roadway? Also please address “shoulder closure” time limits (if any)? • This is also called an “opinion”. Is there a penalty or bonus if the Contractor uses more or less than the 100 nights indicated?
A8) Please see Addendum No. 2, dated October 14, 2010.14Oct10.
Q9) Please provide a table for the locations and diameters of the pipes that need to be cleaned for bid item 57.
A9) See Q-12 for Clean Existing Culvert table and reference to Drainage System numbers. 4Oct10.
Q10) Does the State have a location for all the excess soil on this project?
A10) No disposal site was predetermined for this project. 4Oct10.
Q11) The HMA under the barrier wall is not shown on the quanity table. How is this to be paid for? As HMA or HMA misc area?
A11) The HMA under the barriers is included on the Roadway Items table on Q-1, it is to be paid for as Hot Mix Asphalt. 4Oct10.
Q12) The drainage detail for the "low clearance slab for reinforced concrete culvert" identifies the concrete to be "concrete backfill (minor concrete) monolithic pour. However in the drainage quantities, (DQ drawings), identifies this material to be Minor Concrete (Minor Structures). Please clarify if the concrete is part of the "concrete backfill" item or "minor concrete - minor structures" item.
A12) Please see Addendum No. 1, dated October 1, 2010. 4Oct10.
Q13) The Staged Construction Drawings indicate HMA Shoulder widening that does not match the typical sections. Are the stage construction drawings incorrect, or does Caltrans intend to install temporary widening in order to facilitate traffic at these overlaps?
A13) Please see Addendum No. 2, dated October 14, 2010. 14Oct10
Q14) The Staged Construction Drawings indicate that in Stage 2-1, the contractor is to widen the outside shoulders from Stations 711+50 NB) and 744+60 (SB) to 828+11(NB) and 828+60 (SB) without K-rail. Within these stations, the work includes a large quantity of Concrete Barrier and Masonry Soundwall over 16” CIDH. Does Caltrans intend for the contractor to complete this work with nightly lane closures only?
A14) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q15) We request a 2-week postponement to the bid date, currently October 12th. Caltrans has just released many projects from indefinite postponement and clustered the new bid dates for the weeks October 4th-15th. There will be significant negative impact upon the ability of UDBE's to responsibly handle this sudden volume of bids. Please separate this Hwy 99 Kingsburg bid date further from the weeks of October 4th-15th.
A15) Please see Addendum No. 1, dated October 1, 2010. 4Oct10.
Q16) On these plan sheets it shows installing the new 10' outside shoulders N.B. & S.B. in areas where there are two existing travel lanes. In the traffic handling plans there is no k-rail in place during these phases. Will the contractor be required to perform this work at night under lane closures?? And if so the 100 shifts of night work allotted for the project do not seem sufficient. Will the 100 shifts be extended or will the traffic handling plans be amended to place k-rail prior to performing this work?
A16) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q17) According to the typical cross sections it shows that in half the locations between the existing concrete and new JPCP there are to be tie bars drilled and bonded into the existing concrete and in the other half there is no tie bar. According to the standard plans a joint filler material may be used instead of tie bars being drilled into the existing. Should we go by the cross sections or the standard plans?
A17) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q18) Bid Item list does not include an item for "bar reinforcing steel" for soundwall? Please clarify payment.
A18) Per the Special Provisions of the project, Section 10-1.61 Soundwall, Measurement and Payment, the contract price includes full compensation for all reinforcement. 7Oct10.
Q19) Please refer to section 5-1.19 of the special provisions. The section identifies 15 locations where there is work to be performed. What is the work to be performed at these locations? The underground classifications in the information handout states 30" diameter tunnel. Please clarify.
A19) Refer to Section 8403 of the Tunnel Safety Orders of the California Code of Regulations regarding boring and pipe jacking operations of 30" in diameter or greater in size. 6Oct10.
Q20) The stage construction plans for Stage 4 Phase 1 specifies the NB shoulder reconstruction from 106+69.98 to 469+43.83 to be done with nighttime lane closures. There are other aspects of the project that will need to be constructed at night with lane closures, so why is this section of the project specifically called out to be constructed at night when others are not?
A20) Bid as shown on plans. 15Oct10.
Q21) The project includes panel repair with JPCP and LCB. Is compensation for the removal necessary for this work included in the price of the JPCP or paid for under roadway excavation?
A21) Please refer to Notice To Bidders and Special Provisions, Amendments To The Standard Specifications, Section 40-4.02. 7Oct10.
Q22) The typical sections for the project do not identify what the existing sections of the shoulders are, except from approx 828+75 to the north end of the project. Bidders will need to have this information to accurately determine the character of the excavation on the project. Please provide this information.
A22) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q23) Please keep the bid date as planned as there are several postponed district 6 projects that have come out in the weeks following this project.
A23) Please see Addendum No. 1, dated October 1, 2010. 4Oct10.
Q24) Are there any details for the JCPC and RSC panel repairs per the tables on Q-6 and Q-7 (width, length, depth, etc.)? If not, could you please provide.
A24) See Revised Standard Plan P8 and contract plans Q-7 and Q-8. Bid as shown on plans. 14Oct10.
Q25) Please refer to plan sheet SC-12 which shows northbound work from 523+00 to 714+50 to be performed while all traffic is on the southbound using detour 5. A significant portion of the work to be performed is construction of new concrete pavement which will require closing the northbound off and onramps at Dodge Ave for extended periods of time. The lane closure charts do not allow for extended closures of these ramps so how is caltrans anticipating the concrete pavement in these areas to be constructed while under traffic?
A25) Bid as shown on plans. 15Oct10.
Q26) On the Summary of Quantities sheet Q-11 plan sheet 401, where is the detail and location that shows the 45CY RSP at the Kings River Bridge No.0267?
A26) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q27) Construction details sheet C-14 shows RSP backing No.2, Method B in front of the abutments ( Section A-A and B-B ). But on the Bridge plan sheet 656 this area to be grouted Rip-Rap by District ( Note 13 ). Is this correct? if not, the summary of quantities Q-11 missing the RSP quantities. Please clarify.
A27) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q28)I do not see any specs for the C/L 6 and removing of fence in the Special
A28) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q29)Plan pg 398 - "Remove Fence" & "Fence(s)" - Can the State please confirm that they have included both NB and SB removal and replacements in your calculations?
A29) No fences are being removed or constructed on the east side of the freeway except for what is shown on SW-8.7Oct10.
Q30)Can the State please add a bid item for the 12' Drive Gate that is indicated on Plan pg 398?
A30) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q31)SP pg 131 - Indicates the State wants "temp traffic screen" - Please clarify the method of payment as there is no such pay item in the bid item list?
A31) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q32)On the aesthetic diagonal wall pattern, noted as wall patterns C & D on sheet #416 it notes at the bottom of the page that the 30 deg angles will be pre-cut by the CMU manufactorer. It's much more complicated that just stating that in the plans. Its a VERY EXPENSIVE to build. There's vertical rebar every 16" + horizontals as well. How will the block maker know which cuts and at what angles he needs to make, especially as the pattern rises in elevation?
A32) Block manufacturer and/or mason to cut block to fit pattern. Angle cuts done in the field are permissible but recommend they be pre-cut and dry fit off site for quality control and uniformity. Block running bond pattern (for rebar placement) to remain constant. "Angle Pattern" blocks shall be cut with web to be plumb and vertical in such a location to accommodate vertical bar placement. 13Oct10.
Q33)Also, each piece has to be a 8" wide piece in order to achieve the final diagonal. Eventually somewhere a vertial rebar will hit the web of the cmu diagonal pattern. The supplier would have to know the mason's layout, split the unit, which sometimes breaks, then cut each piece perfectly. Does the state have the name and number of block supplier so that pricing of these special angled units is available?
A33) Again "Angle Pattern" blocks shall be cut to with web to be plumb and vertical to accommodate vertical bar placement. Different Block manufactures and suppliers may have different "per block" cutting prices. 13Oct10.
Q34)Has the state considered using split veneer components that have wire ties to achieve the same look. Please provide some additional information.
A34) Veneer components have not been specified. Bid per plans and specifications. 13Oct10.
Q35)This standard was devised in 1980. The IEEE obsoleted this standard in 1991, and again 2002. The surge protection standards met by our MVDS product provide more robust protection from surges, e.g. IEC 1000-4-5 and EN 61000-4-5. This internal surge protection meets or exceeds traffic industry requirements. By locating the surge protection in the MVDS sensor head, each MVDS sensor unit is protected from surges induced by transients in the cable and from the enclosure to the MVDS sensor. Can Caltrans provide a more modern specification for transient protection that represents current practice?
A35) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q36)The specified solar panels are 65 watt each, and 2 or 4 panels are required at each MVDS site. These small panels increase the cost of the solar panels plus the mounting frame, as well as increase the cost of the assembly of equipment at each site. Why was a 130 watt solar panel not specified?
A36) The 65 watt solar panel is currently used for other Caltrans systems and will be used in the future as needed. 13Oct10.
Q37)The solar system capacity specified is considerably greater than the 4.5 watts of power required for each MVDS unit with a radio modem. A single 75 watt solar panel with two 55AH batteries or one 100AH battery provides adequate power in Fresno through December and January, and the battery or batteries provide 10 days of stored power capacity. A solar system with three 84 amp hour batteries would provide our MVDS+modem with 17.6 days of stored power capacity, which exceeds what is needed by 76%. Also, a solar system with 130 watts of solar panel provides more than 190% of the power gathering capacity required by our MVDS+modem. This excess solar system capacity increases the cost of the solar system by 75% without delivering any benefit. Why was the designed solar system capacity so over sized?
A37) The system was designed to accomodate Caltrans present and near future requirements. 13Oct10.
Q38)There is a conflict in drawing E19 between Note 3 and Detail B. Note 3 as shown in the “MICROWAVE VEHICLE DETECTION SYSTEMS” table stipulates a configuration as shown in drawing E23 with solar charge controller and 6 batteries for MVDS locations 13 and 14. Detail B in drawing E19 implies no solar charge controller or batteires. Please confirm that MVDS locations 13 and 14 will not have batteries or a solar charge controller.
A38) Yes, MVDS locations 13 and 14 are powered by conventional power and will not require batteries or a solar charge controller. Note #3 on sheet E-19 refers to Sheet E-23 for NEMA 3R enclosure details. Detail B, shows the internal components of the NEMA 3R enclosure and it is clearly identified for location 13 and 14. 13Oct10.
Q39)The NEMA 3R cabinet shown in drawings E20, E21, E22, and E23 includes a DC powered vent fan at the top of the cabinet drawing air from the unvented top section of the cabinet. The shelf in the center of the enclosure is to provide a seal relative to the bottom compartment with the batteries. The center shelf blocks the flow of air from the lower compartment which has the only ventilating louvers shown. Where does the engineer propose the air vented by this fan is to come from?
A39) See sheet E-23 side view which shows the screened vent that will be used with fan 14Oct10.
Q40)The primary heating of the cabinet in drawings E20, E21, E22, and E23 will be the sun shining on its exterior surfaces. The equipment within the upper compartment of the cabinet with the fan dissipates approximately 1.75 watts of power as heat. The fan poses a considerable load on the solar system - - - possibly more than the MVDS and its modem. Why was the cabinet not designed to use passive convection to ventilate the cabinet? This would be accomplished with vent louvers low on one side wall of a compartment and vent louvers high on the other side wall of the compartment.
A40) Bid as shown on plans. 14Oct10.
Q41)If the sun heating up the cabinet was a concern, why wasn’t the cabinet designed to have exterior sunshield panels on the top, sides, and door? The use of sunshields on cabinets is a common practice when the cabinet houses equipment sensitive to temperature. What temperature sensitive equipment will Caltrans install in this cabinet?
A41) Bid as shown on plans. 14Oct10.
Q42)Drawing E23 did not provide dimensions for the shelf locations. There must be 12 inches of vertical clearance for batteries and their cabling above each shelf. Otherwise the batteries are not readily replaceable. Will 12 inch shelf spacing be acceptable to Caltrans?
A42) Bid as shown on plans. 14Oct10.
Q43) Drawing E23 shows a shelf in the top compartment of the cabinet which is not needed or desirable. The DIN rail with the “sensor interface” must be fastened to a back plate. Drawing E23 requires the DIN rail be installed to the back wall of the cabinet, which compromises the rain tight integrity of the cabinet. Removing the shelf and extending the back plate upward toward the top of the top compartment remedies this problem and provides a proper installation. The “wireless equipment” is designed to mount on a back plate with screws, and does not require a shelf. Can the top shelf be deleted from the cabinet?
A43) Bid as shown on plans. 14Oct10.
Q44)In drawings E20, E21, and E22, the grounding bus shown appears to be redundant with the terminal strip for negative pole battery connections. Each added connection in an assembly reduces reliability. Why was this redundancy included?
A44) To comply with NEC. 14Oct10.
Q45)In drawings E20, E21, and E22, the battery positive DC connections to the solar charge controller are through 10 amp two pole circuit breakers with each breaker pole serving a different battery. This has the potential to create a maintenance problem when the wrong breaker is tripped during battery replacement. When batteries are to be replaced, it is likely that all batteries will be replaced at once, favoring a single circuit breaker for all batteries, since the peak output from four 65 watt panels is 15 amps at less than 18 volts DC. The use of multiple circuit breakers does make it possible to keep the equipment working with some battery power during a replacement of other batteries. However, for safety’s sake, that requires the batteries and cables to be clearly labelled to assure maintenance personnel know which breaker associates with which set of battery cables. Why was the breaker/cable labelling not stipulated in the design?
A45) Bid as shown on plans. 14Oct10.
Q46)When can we expect to get another addendum from Caltrans?
A46) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q47)Special Provision Section 10-1.31 pg 134 notifies bidders of the presence of aerially deposited lead (ADL) within the project limits. The contract documents and design reports do not provide bidders enough information to quantify the amount of ADL, or determine its contamination levels and locations. In order to price the work, Caltrans must provide the following information: 1) What year was the soil study conducted for this project? 1a) Please provide this soils study for our review? 2) Please provide layout drawing showing the location and contamination levels of ADL soils with-in the project limits? 3) Can Caltrans guarantee that there is no hazardous material that exist at the site?
A47) Per the Special Provisions Aerially Deposited Lead within the project is at a non hazardous level and does not require mapping. All excavated soil is to be reused within the project. The Site Investigation Report is being provided in Addendum Number 2, dated October 14, 2010, for reference. 14Oct10.
Q48) Has Caltrans obtained "written consent from the Department Operating Administration" as it applies to paragraph in 49 CFR 26.55?
A48) No. Please bid per the current contract documents. 13Oct10.
Q49)There are no Summary of Quantities or Logs Of Test Borings for the Soundwall piles.
A49) Please see Sound Wall Quantities table on sheet Q-9. Please refer to Log of Test Borings for bridges in the vicinities of soundwall locations. 13Oct10.
Q50) Referring to Bid Items #59 thru 73 (bridge removal), where does the Special Provisions address bridge removal specifics at these locations?
A50) See Section 10-1.31, "Existing Highway Facilities," subsection, "Bridge Removal," on pages 140 and 141 of the contract special provisions. 11Oct10.
Q51)Caltrans staging for the project, along with the requirements of Maintaining Traffic and Public Safety do not make it conducive to limit the nighttime work on the project to 100 shifts. Caltrans needs to re-evaluate these requirements if they are going to limit the nighttime work to 100 shifts.
A51) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q52)Layout L-1 (sheet 10)shows 208LF of 736SV Barrier that is not listed in the quantities for 736SV Barrier (sheet 402)the typical section also shows this barrier to be supported on CIDH piles, no "he" or CIDH information is given for this section of barrier rendering it impossible to determine the concrete quantity for the barrier and CIDH legnth/count. Under what bid items is this section of barrier & CIDH paid for and what are the "He" dimensions for thei legnth of barrier?
A52) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q53)On the Concrete Barrier (Type 736SV) Quantity Table (sheet 402) several legnths of barrier do not have quantities listed for CIDH pile, but they are shown constructed on CIDH pile in the Typical Cross Sections (sheet 9). Are these legnths of 736SV barrier intended to be constructed on CIDH pile, and if so under what item is that CIDH pile paid?
A53) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q54)on the plans it calls out remove fence metal post but it looks all the the fence to remove is wood post was this a clerical error?
A54) Callouts on the plans for Remove Fence do not specify the type of post. Callouts for the fence to be constructed specify Metal Post. 15Oct10.
Q55)In Question Q10, it was asked how the barrier AC pad was going to be paid for. The state replied that this pad was to be paid for as HMA with the QC/QA requirements. Per state spec section 39-1.13, it states all areas in the median outside the travel way, except the shoulder, are considered Misc. AC. Therefore per the spec the barrier pad, the 1' AC along the topside of the barrier and the wedges from 0'-8' would be considered misc. paving. In an addendum can you clarify these areas are not misc. paving.
A55) Please see Addendum No. 2, dated October 14, 2010. 14Oct10. The Roadway Items table has been updated to include HMA Under Median Concrete Barrier to clarify that the payment for this HMA is not to be Misc. HMA. 14Oct10
Q56)On the stage 1 phase 1 it calls to reconstruct the southbound outside shoulders on each side of the Kings River Bridge (701+00 to 705+10.25 & 710+10.25 to 714+20). This work is not consistent with the Typical Sections for this station shown on sheet 7 & 8. Does this AC/AB section need to be installed and how is it reflected in the quantities?
A56) Bid as shown on plans per Stage Construction sheet SC-6, Stage 1, Phase 1, and per Stage Construction sheet SC-10, Stage 4, Phase 1. HMA shoulder quantities included in Quantity sheet Q-1, Detour Quantities. 15Oct10.
Q57)On Sheet 216, Phase 1 detail, it calls to install .6' HMA for the outside shoulder. On sheet 3 it shows to install .8' HMA total for the outside shoulder. If you back out the .25' HMA overlay to done in phase 3, you are left with a section of .55', not the .6', unless you leave the shoulder .05' high and place a .2' overlay. Please clarify if the outside shoulder widening in all phases is .6', .55' or if the typical overall thickness is incorrect.
A57) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q58)The States has not included two stages in the “traffic handling plans” those two stages are Stage 1-1 and 3-1. The States road plans are indicating that these two stages are to be build with-out temporary k-rail using night time lane closures. The Cross Creek bridges between Sta. 280 and 320 are in this area. However, State has included a detail on the bridge plans that the bridge contractor will be protected behind k-rail (see plan sheet 593 as reference). Road plans and bridge plans are in conflict!! The road plans do not indicate placement of temporary k-rail. Please clarify how the States intents to protect the construction workers when performing the SB bridge and road widening in these two stage (with or with-out temporary k-rail)?
A58) Bid as shown on plans. 19Oct10.
Q59)The specials say to maintain existing planted areas, AS DESIGNATED ON THE PLANS. The plans do not show the limits of the areas to be maintained. What are the limits of the 'maintain existing planted areas'? please clarify.
A59) Existing vegetation shown on the plans not labeled as Remove Planting on the PP sheets, included in the Remove Tree Quantity table, or covered by the Clearing and Grubbing Standard Specification shall be maintained in accordance with the Special Provisions. 15Oct10.
Q60)On plan sheet #4, Northbound station 469 to 524 we notice OGFC and HMA over the existing PCC panels. On plan sheet 396 between the stations just metioned above RSC is to be place. We are requesting clarification on the removal of OGFC and HMA and to what level is the RSC to be place?
A60) The Rapid Strength Concrete is to replace the existing structural section only. The full overlay will be placed over the Rapid Strength Concrete. 15Oct10.
Q61)5-1.15 of the Specials states that the Indirect Source Review (ISR) is the responsibility of the Contractor. Rule 9510 states that it's the responsibility of the Developer which would be Caltrans. I would advise changing the language to pay for the ISR and any cost associated with the Nox reduction to be paid at force account.
A61) We have made it the responsibility of the contractor since all fees and mitigation cost will be subject to the contractor's equipment (year built, type of engine, etc.). it is true that we as the owner of the facility are ultimately responsible for complying to this rule, but we have no way of estimating what type of equipment the contractor will be using during construction, therefore we have put the burden on the contractor to provide the air district with all the documentation and fees associated with this application. There is a form that can be filled out at time of application that enables the contractor to do this on behalf of Caltrans. 18Oct10.
Q62)Is the quantity correct for Bid item 115, 16" CIDH Concrete Piling? 16" concrete pilings can only be found at soundwall locations 1, 2, & 3.
A62) 16” CIDH Concrete Piling item is also associated with the Concrete Barrier (Type 736SV) item on Quantity Sheet Q-12. 15Oct10.
Q63)Sheet DQ-1 has a note listing plastic pipe as acceptable for APC. All pipe materials in the drainage quantity sheets is listed as CSP or RCP. Please clarify that plastic pipe is acceptable or not for APC.
A63) Please refer to even numbered Drainage Quantity sheets for Alternative Pipe Culvert locations. 14Oct10.
Q64)Please refer to Section 10-1.01 Order of Work and Page 16 of the Biological Opinion dated September 24, 2009 regarding the maximum of 100 night time construction shifts. Being this is a 600 working day project with night work consisting of 31 miles of k-rail to be moved, 16 miles of 10’ wide shoulder to be reconstructed, 139,000 sy of cold plane ac, 30,800 tons of Rubberized hot mix asphalt, plus striping and electrical work it is unreasonable to limit the night work to 100 shifts. Could Caltrans reconsider the requirement for a maximum of 100 night time shifts and increase this amount to at least 400 shifts?
A64) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q65)Now that the state bdget situation is approved, does Caltrans intend to award this project within 30-days or require 60-days as modified by Addendum #1? A 60-day award will impact start of construction and procurement of 48" CISS piles for Stage 1 construction.
A65) Caltrans intends to award this project within 30 days. 14Oct10.
Q66)As of this afternoon, there are still 33 unanswered Bidder's Inquiries out of a total 51 questions posted. Starting tomorrow there remains only 2 working days (not counting Friday 10/15 furlough day) before bid day. When will an addendum be posted to address the bidder's inquiries?
A66) Please see Addendum No. 2, dated October 14, 2010. 14Oct10.
Q67)On plan sheet 402 (Q-12) it clearly changes the quantities of the 16" CIDH concrete piling, will the changes be made to the bid form?
A67) Please see Addendum No. 2, dated October 14, 2010. 15Oct10.
Q68)Drainage Systems 36, 38, 41, 43, 52 profile plans indicate that there is a "low clearance slabs" over new culverts, however, the drainage quantities to not indicate that there is any minor concrete (minor structures)for those culverts. Please verify if culverts are to have minor concrete over the new culverts. Drainage System 22 profile plan indicates there is a "low clearance slab" over removed concrete culvert. Please verify if there will be a need for the minor concrete (minor structure) slab for the removed pipe.
A68) Bid as shown on plans. 18Oct10.
Q69)The Central Valley Flood Protection Board permit, made available to the Contractor 3 days before bid day), Special Condition THIRTY-THREE includes formwork as something that is also not to remain in the floodway from November 1 to July 15. Is it the State's intention for no work to be performed in and over the Kings River in this time period? Considering that, after bridge removal, after the test pile is driven and retapped, and after the State uses its 30 days to determine final pile lengths, it is very unlikely that it will be possible to finish the first stage of the bridge without working during the winter, which will add one full season to an already tight job. Also, 3.5 months is a very short work window to perform bridge removal and construct stages 2 and 3, not to mention the closure pours and rock slope protection work. Please comment on the State's understanding of what work, if any, will be allowed during the winter and if the State considered whether this amount of work is even possible during this short work window.
A69) Attention is directed to Special Conditions Twenty One and Twenty Seven. With approval of the plans supplied to the Central Valley Flood Protection Board the contractor will be given a variance to allow work to continue through the flood seasons. This variance can not be obtained by the Department of Transportation because the specifics of the construction work are to be determined by the contractor. 18Oct10.
Q70)Is it State's intention use integrally colored concrete and stain on type 60(modified) and 736(modified) barriers? What is thickness of pea gravel texture at Kings River Bridge?
A70) Yes. Integrally Colored Concrete will be used with the Dry Stacked Stone pattern to be used on the bridge rails as shown in the plans as per the Special Provisions for Architectural Surface (Textured Concrete). Concrete barrier without the Architectural Surface (Textured Concrete) will not be Integrally Colored Concrete. The thickness of the pea gravel texture is per current contract documents. 19Oct10.
Q71)Normally the joint sealant specification calls for the sealing of only the longitudinal and transverse weakened plane joints. This has no mention of either specifically. Are all weakened plane and contact joints getting sealed?
A71) Bid as shown on plans. 19Oct10.
Q72)There is no mention of the transverse contraction joint detail, only the longitudinal contraction joint. What is the intention? Quantities do not reflect transverse contraction joint quantity as well.
A72) Bid as shown on plans. 19Oct10.
Q73)Could you double check the quantity of the pavement joint for this job? It appears that the quantity for all of the transverse joints may be missing from the takeoff.
A73) Bid as shown on plans. 19Oct10.
Q74)Where does the mulch go (6,800 CY)? for example: 'Mulch shall be placed in ... and spread to uniform depth of XYZ". Sheet 402 of 687 (Summary of Quantity Q-12) only gives 'Sta 759+80 to 831+10'. Note: There are existing trees, shrubs and ground-cover in those areas as well.
A74) Submitted for consideration. 18Oct10.
Q75)What type of clearing is required before mulch is placed? for example: 'Areas are to cleared from trash, debris and weeds'; 'A granular pre-emergent shall be applied to areas covered by mulch'.
A75) Submitted for consideration. 18Oct10.
Q76)Please Note: Question regarding 'Maintain Existing Planted Areas' has not been answered yet ... when can we expect an response?
A76) The answer for #59 was posted on October 15. 19Oct10.
Q77)Per the "Median Barrier Offsets" tables and details on C-11 and C-12 it appears the the offset for each itemized station range (line on the table) is a constant "H" for all the Type 60C barrier which occurrs in that station range. Please confirm.
A77) For each station range shown on sheets C-11 and C-12 the Offset Height is designed to be constant at the value shown. 18Oct10.
Q78)Ref Special Provision 10-1.67- Confirm that the only Type 60 series barrier requiring Dry Stacked Stone Arch Surface, or other surface finishes, are those barriers called out as Type 60 A Modified barrier shown on plan sheets 649, 654, 673 and 675, as they are the only Type 60 arch. ..."concrete surfaces shown on the plans".
A78) Yes, that is correct. 18Oct10.
Q79) What size are the shear rings for the CISS piles? Are shear rings required on the test/anchor piles?
A79) Bid per current contract documents. 19Oct10.
Q80)The Type 736SV work in the vicinity of Draper and Conejo is shown to be performed in Stage 2/Phase 3. As no K-Rail is shown in this area, the work is 10' from the shoulder and there is a metal beam guard railing to be removed, how did the State envision this work being accomplished? Removal and replacement of the barrier in one night is not possible. Could the traffic be moved to the new number one lane to accomplish the work in this area?
A80) Submitted for consideration. 19Oct10.