Caltrans Office Engineer

Viewing inquiries for 10-0M7804

Submit new inquiry for this project


Inquiry #1: "Section-4" of the Special Provisions and the"Instruction to Bidders" states that the daily Liquidated Damage is $105,000.00 in addition to the daily Liquidated Damage of $10,500.00 per Section 8-107A of the Standard Specifications. Please confirm that the daily Liquidated Damage for this project is $105,000.00 per day in addition to the daily $10,500.00 Liquidated Damage as outlined in the Standard Specifications.
Inquiry submitted 09/26/2012

Response #1:Submitted
Response posted 09/28/2012


Response #2: Yes, the total liquidated damages per day will be $115,500.
Response posted 10/02/2012


Response #3: Please refer to Addendum No. 3, dated October 23, 2012. Section 4, "Beginning of Work, Time of Completion, and Liquidated Damages," of the Special Provisions and page 10 of the Bid Book, have been revised. The total liquidated damages will be $47,500 per day.
Response posted 10/26/2012




Inquiry #2: Section-10 "Order of Work" states "Construction on the traveled way during staging must be done one segment at a time (pg41). Please confirm if the Contractor is permitted to work in all segments while performing work in one stage. For example, perform all of Stage-1 (outside shoulders) in Segment-1, Segment-2, and Segment-3 at the same time. Upon completion of Stage-1, then move to Stage-1A (median) in Segment-1, Segment-2, and Segment-3.
Inquiry submitted 09/26/2012

Response #1:Submitted
Response posted 09/28/2012


Response #2: As stated in Section 10-1.01 "ORDER OF WORK" of the Special Provisions, "Construction on the traveled way during staging must be done one segment at a time."
Response posted 10/02/2012




Inquiry #3: Page 10 of the "Bid Book" has "!Unexpected End of Formula" / Cost Per Day in the Total Bid For Time section. Will Caltrans provide this value or formula to bidders prior to the bid date or with this value or formula be disclosed once all bids are opened on bid day?
Inquiry submitted 09/26/2012

Response #1:Submitted
Response posted 09/28/2012


Response #2: Please refer to Addendum No. 1 dated October 11, 2012.
Response posted 10/12/2012




Inquiry #4: The Stage-3 "Stage Construction" cross section drawing does not include temporary k-rail for this stage. Please confirm if temporary k-rail is or is not required to construct the final median barrier and asphalt concrete cap during Stage-3.
Inquiry submitted 09/26/2012

Response #1:Submitted
Response posted 09/28/2012


Response #2: Temporary railing (Type K) is not required for Stage 3 construction.
Response posted 10/02/2012




Inquiry #5: The ad posted under ads for bids on your website says 870 working days. On page 1 under notice to bidders, and page 10 of the proposal, says this is cost+time bid and do not bid more than 620 working days. Which is it?, as the bid proposal does not have a "COST PER DAY" amount, it says "!Unexpected End of Formula"?
Inquiry submitted 09/28/2012

Response #1:Submitted
Response posted 09/28/2012


Response #2: Please refer to Section 4, "BEGINNING OF WORK, TIME OF COMPLETION, AND LIQUIDATED DAMAGES," of the Special Provisions: "Complete the work, except plant establishment work, within the number of working days bid." The 870 working days referenced in the Department's advertisement are a total of 620 maximum construction working days + 250 plant establishment working days.
Response posted 10/02/2012


Response #3: Please refer to Addendum No. 1 dated October 11, 2012.
Response posted 10/12/2012




Inquiry #6: Please provide construction details for the temporary crossover south of the Charter Way UC. Are we to demo the existing shoulder and place the crossover ETW to ETW or is the intent to place the crossover from ES to ES without demoing the shoulders?
Inquiry submitted 09/30/2012

Response #1:Submitted
Response posted 10/02/2012


Response #2: Please refer to the Stage 1A typical cross section on Stage Construction plan SC-2 (sheet 128 of 485), for "Temp Cross-over in Tangent Section." Remove existing shoulders and place the temporary cross-over from ETW to ETW.
Response posted 10/02/2012




Inquiry #7: What is the structural section for the MVP south of Charter Way UC? Typical XS show pavement section 3 and Construction Details C5 indicate a different section.
Inquiry submitted 09/30/2012

Response #1: Submitted
Response posted 10/02/2012


Response #2: Please refer to Construction Details plan C-5 (sheet 45 of 485) for Maintenance Vehicle Pullout construction.
Response posted 10/02/2012




Inquiry #8: The stage construction plan shows 0.65’ or 0.75’ HMA(TYPE A) shoulders paved during stage 1 and 1A and CRCP in stage 2. Please confirm HMA paved during Stage 1 and 1A is permanent and CRCP will match new HMA shoulder as a grade control.
Inquiry submitted 10/02/2012

Response #1: Submitted
Response posted 10/02/2012


Response #2: Refer to Stage Construction plans SC-2 and SC-3 (sheets 128 and 129 of the plans), Typical Cross Sections. For Stage 1 and Stage 1A, the 0.75' HMA is for locations with an auxiliary lane and its shoulder, the 0.65' HMA is for shoulders where there is no auxiliary lane. Grade control for CRCP in the final configuration must follow the design profile provided on the plans.
Response posted 10/04/2012




Inquiry #9: The typical cross sections for the traffic handling plans do not show pinning the k-rail when it is being used a temporary median barrier. Is the intent to pin the rail in these situations as shown in new standard plan T3A?
Inquiry submitted 10/02/2012

Response #1: Submitted
Response posted 10/02/2012


Response #2: Temporary railing (K-rail) is to be doweled, pinned, or staked as shown on Standard Plan T3 and New Standard Plan NSP T3A for Temporary Railing (Type K).
Response posted 10/03/2012




Inquiry #10: Special Provisions - Spec. section 10-1.43 continuously reinforced concrete pavement page 137 submittals read - if epoxy coated steel is usedin continuously reinforced concrete pavement submit a copy of the certification for each plant used.
Under measurement and payment page 141 paragraph 9 reads full compensation for epoxy coating of steel reinforcement is included in the contract price paid per cubic yard for continuously reinforced concrete pavement and noadditional compensation will be allowed therefore....please confirm if epoxy coating of the continuously reinforced concrete pavement is required or not

Inquiry submitted 10/04/2012

Response #1: Submitted
Response posted 10/04/2012


Response #2: Epoxy-coated steel is not required for continuously reinforced concrete pavement in this contract.
Response posted 10/05/2012




Inquiry #11: Ref: Special Provisions - Spec. section 10-1.44 continuously reinforced concrete pavement (rapid strength concrete) page 142 - submittals read - if epoxy coated steel is used in continuously reinforced concrete pavement RSC submit a copy of the certification for each plant used.
Under measurement and payment page 152 paragraph 9 reads full compensation for epoxy coating of steel reinforcement is included in the contract price paid per cubic yeard for continuously reinforced concrete pavement rapid strength concrete and no additional compensation will be allowed therefore...please confirm if epoxy coating of the continuously reinforced concrete pavement is required or not.

Inquiry submitted 10/04/2012

Response #1: Submitted
Response posted 10/04/2012


Response #2: Epoxy-coated steel is not required for continuously reinforced concrete pavement in this contract.
Response posted 10/05/2012




Inquiry #12: According to the plans all Temporary Crossovers seem to be permanant, because theres no plan sheets that show temporary crossovers being removed. Can you please specify if we have to remove temporary crossovers or do we pave over the top of them with .50' HMA?
Inquiry submitted 10/05/2012

Response #1: Submitted
Response posted 10/05/2012


Response #2: The crossovers will be removed as necessary for construction of the median shoulders and median. Refer to Addendum No. 2, dated October 18, 2012.
Response posted 10/18/2012




Inquiry #13: The website is advertising for 13% UDBE requirement, while the Notice to Bidders says 13% DBE contract goal. Please confirm if the 13% minority goal is DBE or UDBE.


Inquiry submitted 10/05/2012

Response #1: The Notice to Bidders is correct, the DBE Contract goal is 13 percent. The Department's 'Advertised Projects' website has been corrected.
Response posted 10/09/2012




Inquiry #14: The drainage summary and bid documents show 19 EA - 12" entrance tapers. The drainage plans and drainage profiles do not show the entrance tapers. Is the intent to connect these into the GDO outlets and connect to the 12" APDD?
Inquiry submitted 10/08/2012

Response #1: Submitted
Response posted 10/09/2012


Response #2: Please refer to Addendum No. 1 dated October 11, 2012.
Response posted 10/12/2012




Inquiry #15: Please refer to ramp closure chart no. 7 on spec page 107. Note 1 states that the 54 hour full closure is valid for two consecutive weekends. There are 10 ramps listed which are in different segments and different stages within segments. Per Order of Work, construction on the traveled way during staging must be done on segment at a time. How was Caltrans anticipating all this work being completed in two consecutive weekends given this is work on the traveled ways of the ramps? Please clarify.
Inquiry submitted 10/09/2012

Response #1: Submitted
Response posted 10/09/2012


Response #2: Since construction (on the traveled way) must be done one segment per stage at a time, only one ramp may be closed at a time in that segment/stage for the referenced 54-hour full closure, as allowed by Chart No. 7 in Section 10-1.16, "Maintaining Traffic," of the Special Provisions.
Response posted 10/12/2012




Inquiry #16: Could caltrans please clarify how areas of the project with temporary crossovers go from the crossover configuration to the final configuration? The stage construction typical cross sections, stage construction plans, and the traffic handling plans do not provide the information needed. For example, the temporary crossover used for segment 2 and 3 between Pershing and Buena Vista will be constructed with a 2% fall towards the center per the stage 1A typical cross section. Per the stage 3 cross section the area will get paved with 0.50' HMA in stage 3 and the barrier will be constructed. However, there is a 60C barrier going in at this location. At station 1504+00 there is a 1.42 step in the pavement at the barrier. Clearly the stage 3 typical cross section is not going to work in this instance. Please provide plans and details showing each cross section and the work to be performed to get that area from its cross over configuration to its permanent configuration.
Inquiry submitted 10/09/2012

Response #1: Submitted
Response posted 10/09/2012


Response #2: Please refer to Addendum No. 2, dated October 18, 2012.
Response posted 10/18/2012




Inquiry #17: The traffic handling plans do not consistently and completely show all the temporary railing from previous stages to remain at each stage of the project. For example - the plans for segment 2 stage 1A shows temp railing from previous stage up to Shimizu Drive. However, the plans for segment 2 stage 2A shows additional beyond that up to Country Club, and stage 2C shows more north of County Club. The quantity of temp railing that Caltrans is requiring to remain from previous stages can significantly affect the bidders cost of the temporary railing. Given this project is constructed in 3 segments with multiple stages Caltrans cannot expect bidders anticipate what temp railing is to remain from prior stages, it needs to be shown completely on the plans. As such, please provide traffic handling plans that shows all temp railing remaining for each stage, not just portions.
Inquiry submitted 10/09/2012

Response #1: Submitted
Response posted 10/09/2012


Response #2: Temporary railing (Type K) is shown in each stage where placed (new) and paid for at the contract item unit price only once. If the temporary railing was already placed in a prior stage, it is shown as existing and no additional compensation will be made. Since this project is being built in 3 segments with multiple stages and phases, any temporary railing (Type K) shown from a previous stage is to remain in place until no longer needed. Only temporary railing quantities identified on the Temporary Railing summary chart on Traffic Handling Quantities plan THQ-11 will be paid for.
Response posted 10/12/2012




Inquiry #18: Bid Item 54 is to MAINTAIN EXISTING IRRIGATION FACILITIES. The only existing irrigation facilities shown are on plan sheets 394 and 395, and all are indicated as being removed or abandoned with the exception of the booster pump and BPAE shown on plan sheet 304. Are the pump and backflow preventer assembly the only facilities to be maintained? If not, please provide detailed plans delineating the areas to be maintained and the facilities that are to be maintained.
Inquiry submitted 10/09/2012

Response #1: Submitted
Response posted 10/09/2012


Response #2: Yes, the pump and backflow preventer assembly are the only facilities to be maintained.
Response posted 10/10/2012




Inquiry #19: Section 10-1.24 “End Of Queue Warning” second paragraph states “Use CMST with attenuator.” Can the CMST be an impact attenuator vehicle with a changeable message sign, or does the CMST need to be shadowed by an impact attenuator vehicle? Are the work times listened under section 10-1.24 “End Of Queue Warning” for when the contractor is working on site, or is the requirement for everyday of the week regardless if the contractor is working or not?
Inquiry submitted 10/15/2012

Response #1: Submitted
Response posted 10/15/2012


Response #2: The intent is to use an impact attenuator vehicle, per Section 10-1.18 "IMPACT ATTENUATOR VEHICLE" of the Special Provisions, either truck or trailer-mounted, with a CMS for the changeable message sign truck (CMST). The times shown in the table in Section 10-1.24 "END OF QUEUE WARNING, apply to Stage 2 Construction, regardless of whether the contractor is actively working.
Response posted 10/18/2012




Inquiry #20: The project specification state the following, "Lead is typically found within the top 2 feet of material in unpaved areas of the highway. Reuse all excavated earth material within the project limits."

This project has a significant excess amount of excavated earthen material. Where is this material to be reused on the project? How is the contractor to dispose of the material if it is to remain within the project limits?

Inquiry submitted 10/16/2012

Response #1: Submitted
Response posted 10/16/2012


Response #2: Please refer to Addendum No. 2, dated October 18, 2012.
Response posted 10/18/2012




Inquiry #21: Can Caltrans provide information on the existing travel way for the following? Is there dowels and or dowel baskets in the existing travel way along the longitudinal or transvers joints?
Inquiry submitted 10/18/2012

Response #1: Submitted
Response posted 10/18/2012


Response #2: There are no dowels or dowel baskets in the existing travel way.
Response posted 10/18/2012




Inquiry #22: Will Caltrans please change the typical cross section for North Bound stations 1421+67 to 1426+40, 1557+17 to 1562+83, 1566+90 to 1568+18, 1426+40 to 1430+00 to include the additional 2’ of CRCP along the outside edge of lane 4 to match the other North Bound stations and typical cross sections?
Inquiry submitted 10/18/2012

Response #1: Submtited
Response posted 10/18/2012


Response #2: The referenced typical cross sections represent auxiliary lane segments, and do not require the additional 2' of CRCP section. Refer to the Layout plans.

Response posted 10/18/2012




Inquiry #23: Will Caltrans add the WF beams used in Items 74 and 75 to the list of materials shown in Spec Section 5-1.11 as eligble for payment for materials furnished but not incorporated in the work?
Inquiry submitted 10/18/2012

Response #1: Submitted
Response posted 10/18/2012


Response #2: No.
Response posted 10/19/2012




Inquiry #24: On Page 199 of the Special Provisions in the Cost Breakdown table the 2,350 LF of 3" PVC pipe is indicated as PR 315. On Page 209 under Plastic Pipe it states that pipe 3" or larger must be gasketed unless PR 315 is required. It also states that the pressure rating shall be as indicate on the plans but I don't see anywhere on the plans that indicates the PR of the pipe. Is the 3" PVC supposed to be PR 315 only in the crossovers or is the entire mainline to be PR 315?
Inquiry submitted 10/18/2012

Response #1: Submitted
Response posted 10/18/2012


Response #2: The 3" plastic pipe for irrigation systems will be pressure rated (PR) 315 as shown in the "IRRIGATION SYSTEM COST BREAK-DOWN," in Section 10-2 "HIGHWAY PLANTING AND IRRIGATION SYSTEMS" of the Special Provisions.
Response posted 10/22/2012




Inquiry #25: How do you determine the number of Data Cores when the HMA paving is either under continuously reinforced concrete pavement, outside of the travelway and in new structural sections? It was my understanding that Data Cores where to determine existing structural sections within ETW's. The specifications that describe how to determine the number of Data Cores do not provide for the circumstances of this project with exception of the ramps.
Inquiry submitted 10/18/2012

Response #1: Submitted
Response posted 10/19/2012


Response #2: Refer to Section 10-1.39 "HOT MIX ASPHALT" of the Special Provisions. Data Core locations shall be chosen as provided in "Data Cores" under subsection "CONSTRUCTION." Core prior to placing the CRCP and "submit to the Engineer and electronically to Coring@dot.ca.gov," as stated in "Data Cores" under "Submittals."
Response posted 10/22/2012




Inquiry #26: Items 59 and 60 are for Lean Concrete Base and Lean Concrete Base (RS). The only LCB work we can find is at the CRCP WF Beam Terminal and CRCP (RS) WF Beam Terminal with 1,355 CY vs 1,770 CY Bid Quantity for Item 59 and 130 CY vs 180 CY Bid Quantity for Item 60. Is there LCB at any other locations?
Inquiry submitted 10/19/2012

Response #1: Refer to Construction Details plan C-7 for Wide Flange Beam Terminals (sheet 47 of the plans). Note the 20' length of LCB shown on the left side of Section G-G.
Response posted 10/19/2012




Inquiry #27: Will railroad protective insurance be required for this project?
Inquiry submitted 10/19/2012

Response #1: Submitted
Response posted 10/22/2012


Response #2: The Contractor shall conduct his operation in a manner that shall have no impact on the tracks and right of way
of the Railroad.
Response posted 10/22/2012




Inquiry #28: On page 195 of the special provions, ALTERNATIVE CRASH CUSHION SYSTEM, alternative no. 2 lists a manfacuturer model no. as 90T105WBC. The manufacturer states that they don't have that model, they have 90T100WBC or 90T110WBC. Which is the correct model required?
Inquiry submitted 10/19/2012

Response #1: Submitted
Response posted 10/22/2012


Response #2: Please bid in accordance with the contract plans and specifications. If a change becomes necessary, it will be handled by proposed Contract Change Order.
Response posted 10/23/2012


Response #3: Please refer to Addendum No. 4, dated October 24, 2012.
Response posted 10/26/2012




Inquiry #29: Per the Amendments to the Standard Specifications Dated May 2006:

The fifth paragraph of Section 40-3.15 Protecting Concrete
Pavement states "Do not open concrete pavement to traffic or use equipment on the concrete pavement for 10 days after paving nor before the concrete has attained a modulus of rupture of 550 psi ...."

The tenth paragraph of Section 40-3.14 Final Finishing states "Do not grind before:
1. Ten days after concrete pavement placement.
2. Concrete has developed a modulus of rupture of at least 550 psi."

Will Caltrans allow the contractor to "open concrete pavement to traffic or use equipment on the concrete pavement" or grind earlier than "10 days after paving" if "the concrete has attained a modulus of rupture of 550 psi"?

Inquiry submitted 10/25/2012

Response #1: Submitted
Response posted 10/26/2012


Response #2: No, concrete pavement will not be opened to traffic or equipment early except as provided in Section 40-3.15 "PROTECTING CONCRETE PAVEMENT" of the Special Provisions.
Response posted 10/29/2012






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.