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Inquiry #1: A - Does the K-rail require gawk screen and/or pins and/or reflective markers?

B - Is the contractor responsible for compaction/QC testing? If so, is there a pay item for this?

C - Does the prevailing wage requirements for AB219 apply for this project?

D - Is the Sawcutting of AC paid through Clearing & Grubbing bid item?

E - Plan Sheet 93 (TH-9) indicates 2 PCMS. Bid Item #11 indicates 4 EA. Could you please clarify where the 4 PCMS boards will be or if this bid item should be 2 EA?

F - Plan Sheet 70 (SC-1) calls for AC removal but there is no note regarding Sawcutting. Should this have a Sawcut note or will sawcutting not be required?

G - Does Bid Item 52 "Remove AC Pavement SF" pay for removal of the Asphalt Only or does this item pay for full removal of the full structural section (AC/Base/Dirt)?

H - Plan Sheet 79 (SC-10) indicates flagging necessary to build the Drainage System 1 with two way traffic sharing one lane width of pavement. On Plan Sheet 82 (SC-13) the intention for construction of Stage 4 looks similar with two way traffic sharing one lane of pavement. However, there is no note for flagging. Can you confirm flagging would be needed here to facilitate the construction of Phase 4 as shown on SC-13.

Inquiry submitted 09/01/2017

Response #1:submitted for consideration
Response posted 09/01/2017


Response #2:A: Gawk screen is not used on the project. Please refer to Standard Plans 2015, T3A, T3B and Standard Specifications 2015, Section 12-3.20C(1) for details.

B. Contractor is responsible for Quality Control (QC). Please see Standard Specifications 2015, Section 5.1.01.

C. Yes. Please see Special Provisions, Notice To Bidders.

D. Item is paid under Item #31, Roadway Excavation.

E. Plan Sheet 93 (TH-9) indicates 2 PCMS are "Not A Pay Item" and are part of the Traffic Handling Plan. Plan Sheet CS-1 lists 4 EA PCMS, which are paid under Item # 11 Portable Changeable Message Sign. See Plan Sheet CS-1, "Notes", concerning locations.

F. Please refer to Standard Specifications 2015, section 39-3.01C.

G . Item # 52 Remove Asphalt Concrete Pavement is for removal of Asphalt Concrete.

H. Please refer to TH sheets. Flagging is required for all work done under reversible traffic control. See Standard Plans 2015, T13, for details.

Response posted 09/12/2017




Inquiry #2: A - Does the K-rail require gawk screen and/or pins and/or reflective markers?

B - Is the contractor responsible for compaction/QC testing? If so, is there a pay item for this?

C - Does the prevailing wage requirements for AB219 apply for this project?

D - Is the Sawcutting of AC paid through Clearing & Grubbing bid item?

E - Plan Sheet 93 (TH-9) indicates 2 PCMS. Bid Item #11 indicates 4 EA. Could you please clarify where the 4 PCMS boards will be or if this bid item should be 2 EA?

F - Plan Sheet 70 (SC-1) calls for AC removal but there is no note regarding Sawcutting. Should this have a Sawcut note or will sawcutting not be required?

G - Does Bid Item 52 "Remove AC Pavement SF" pay for removal of the Asphalt Only or does this item pay for full removal of the full structural section (AC/Base/Dirt)?

H - Plan Sheet 79 (SC-10) indicates flagging necessary to build the Drainage System 1 with two way traffic sharing one lane width of pavement. On Plan Sheet 82 (SC-13) the intention for construction of Stage 4 looks similar with two way traffic sharing one lane of pavement. However, there is no note for flagging. Can you confirm flagging would be needed here to facilitate the construction of Phase 4 as shown on SC-13.

Inquiry submitted 09/01/2017

Response #1:submitted for consideration
Response posted 09/01/2017


Response #2:A: Gawk screen is not used on the project. Please refer to Standard Plans 2015, T3A, T3B and Standard Specifications 2015, Section 12-3.20C(1) for details.

B. Contractor is responsible for Quality Control (QC). Please see Standard Specifications 2015, Section 5.1.01.

C. Yes. Please see Special Provisions, Notice To Bidders.

D. Item is paid under Item #31, Roadway Excavation.

E. Plan Sheet 93 (TH-9) indicates 2 PCMS are "Not A Pay Item" and are part of the Traffic Handling Plan. Plan Sheet CS-1 lists 4 EA PCMS, which are paid under Item # 11 Portable Changeable Message Sign. See Plan Sheet CS-1, "Notes", concerning locations.

F. Please refer to Standard Specifications 2015, section 39-3.01C.

G . Item # 52 Remove Asphalt Concrete Pavement is for removal of Asphalt Concrete.

H. Please refer to TH sheets. Flagging is required for all work done under reversible traffic control. See Standard Plans 2015, T13, for details.

Response posted 09/12/2017




Inquiry #3: SPECS STATE T POSTS FOR TURTLE FENCE
80-4.01B Materials
Each T post must:
1. Comply with ASTM A702
2. Be metal and have an anchor plate
3. Be painted black or galvanized

Further down STATES
80-4.02B(1)(d) Posts
Each post must:
1. Comply with ASTM F1083
2. Be standard weight, schedule 40 steel pipe with a nominal pipe size of 1 inch
3. Be galvanized steel fence post conforming to ASTM A702

Are the posts suppose to be Painted "GREEN/WHITE" ??

SCE TURTLE FENCING.

PROTECTION DETAILS MUST APPLY TO FENCING UNDERNEATH THE SCE TRANSMISSION LINES AND AS DIRECTED BY THE ENGINEER


1) Has the pre-bid happen? or not when?
2) If Clamps are used is the same 2' spacing required?
3)If Exothermic welding used, is the spacing the same? 2'
4) Can both be used?

Thank you!

Inquiry submitted 09/11/2017

Response #1:submitted for consideration
Response posted 09/12/2017


Response #2:Part 1. Galvanized Posts are required for Tortoise Fence.

Part 2.
1. Please See Special Provisions, Notice To Bidders, " A mandatory prebid meeting is scheduled on September 14, 2017 at 10:30 am to 11:30 am at 464 W.
Fourth Street. San Bernardino Ca, 92401. Room 805AB."
Response to Questions 2,3, & 4 are forthcoming.

Response posted 09/12/2017


Response #3:Part 2
See Revised Standard Plan RSP A84A & A84B for fence construction details. Tortoise Fence Post spacing is 5' . 2' spacing refers to fence construction for hog ring ties. See Plan Sheet ED-2, and ED-2 Notes for electrical and bonding details. The Ground Rods are placed next to each desert tortoise post as shown. See Plan Sheet ED-2, Notes, - Listed Clamp, pressure connector or Exothermic Weld may be used to connect the Ground Rod to the fence.
Response posted 09/13/2017




Inquiry #4: Per the interim guidelines, subsequent testing protocols (Plasticity Index and AASHTO T 283) were established and incorporated in the 2010 Standard Specifications. This action should have resulted in Caltrans rescinding the lime treatment requirement per the interim guidelines. When Caltrans HMA mix design methodology changed from Hveem to Superpave the Hamburg Wheel Tracking (HWT) test (AASHTO T 324) was introduced as an additional means to determine the need for lime treated aggregates.

Our proposed ¾” RHMA-G mix design does not contain lime marinated aggregates as the mix meets the current HWT requirements without the need for lime. The mix will not pass the CT 283 due to the generic nature of RHMA mix designs inability to withstand the water emersion procedure contained in the AASHTO T 283 test procedure. As such, per Caltrans 2008 Memorandum to District Directors (attached) our proposed HMA mix will incorporate 0.5 percent Liquid Anti Strip (LAS).

Based on the above we respectfully request the requirement for lime treated aggregates be waived on this project.

Inquiry submitted 09/19/2017

Response #1:submitted for consideration
Response posted 09/20/2017




Inquiry #5: On the project plans (Sheet #128)ECL-1, Table, Erosion Control (Type 2 Slopes 4:1 or Steeper), Step 6, Fiber Rolls, the table calls for "Type B" fiber rolls. Can you direct me to where I can find what "type B" fiber rolls are.
Inquiry submitted 09/21/2017

Response #1:Please see Addendum No. 3. Revised Standard Plan RSP H51
Response posted 09/28/2017




Inquiry #6: The project plan sheet ECL-1, Sheet No. 128, in the seed mix box the seed species Larea tridentata (creosote) says 80% germination and 21.8 Pure Live Seeds per acre. Is the 21.8 Pure Live Seeds per Acre an Error? It should be 2.8 Pure Live Seeds Per acre. Please confirm.
Inquiry submitted 09/25/2017

Response #1:submitted for consideration
Response posted 09/25/2017


Response #2:An addendum will be released addressing this issue.
Response posted 09/25/2017


Response #3:CORRECTION TO RESPONSE: Please note that plan sheet ECL-1, SEED MIX, "Larea tridentata (Creosote)" 80% Germination (minimum), Pounds Pure Live Seed Per Acre (Slope Measurement) 21.8. Is correct as stated, and no addendum will be issued due this inquiry #6.
Response posted 09/25/2017


Response #4:CORRECTION TO RESPONSE: Please note that plan sheet ECL-1, SEED MIX, "Larea tridentata (Creosote)" 80% Germination (minimum), Pounds Pure Live Seed Per Acre (Slope Measurement) 21.8. Is correct as stated, and no addendum will be issued due this inquiry #6.
Response posted 09/25/2017




Inquiry #7: PLEASE SEE STAGE CONSTRUCTION SC-2 SHEET # 71 STAGE 1 PHASE 2 AND TRAFFIC HANDLING PLAN TH-2 SHEET # 86. THE DETAIL SHOWS TO COLD PLANE (1.4' WIDTH) TO REMOVE THE CENTER LINE RUMBLE STRIP. THERE IS NOT A COLD PLANER MADE THAT HAS A 1.4' WIDE MILLING HEAD. IN ORDER TO PERFORM THIS WORK THE PLANE WIDTH WILL BE MINIMUM 2' WIDE. WILL THE STATE ISSUE AN ADDENDUM TO CHANGE THE WIDTH TO THE 2' AS THIS IS THE MINIMUM WIDTH FOR A COLD PLANE HEAD? IF NO ADDENDUM IS ISSUED WILL THE STATE COMPENSATE THE CONTRACTOR AT ITEM FOR THE ADDITIONAL .60' OF COLD PLANE AND OVERLAY THAT WILL BE REQUIRED TO ACCOMPLISH THIS WORK.
Inquiry submitted 09/29/2017

Response #1:submitted for consideration
Response posted 10/02/2017


Response #2:Please bid per current contract documents.
Response posted 10/03/2017




Inquiry #8: REQUEST FOR CLARIFICATION:
A.
SHEET 27 CONSTRUCTION DETAIL C-1 DETAIL FOR REMOVAL OF EXISTING RUMBLE STRIP SHOWS TO GRIND 5/16" TO REMOVE THE EXISTING CENTERLINE RUMBLE STRIP.
SHEET 71 STAGE CONSTRUCTION SC-2 SHOWS TO COLD PLANE .25' AND PAVE BACK WITH .25' HMA TO REMOVE CENTER LINE RUMBLE STRIP. PLEASE CLARIFY WHICH METHOD OF REMOVAL WILL BE UTILIZED FOR THIS PROJECT.

B.
PLEASE CLARIFY WHAT WILL BE DONE WITH THE EXISTING RUMBLE STRIP ON THE N/B 395 PRIOR TO PLACING TRAFFIC ON THE DETOUR TEMP PAVING PLACED IN STAGE 1 PHASE 1 IN THE AREAS WHERE TEMP PAVING IS NOT PLACED AND TRAFFIC IS RUNNING ON THE EXISTING RUMBLE STRIP.

Inquiry submitted 09/29/2017

Response #1:submitted for consideration
Response posted 10/02/2017


Response #2:A. Existing Centerline rumble strip will be removed per sheet SC-2 (Sheet 71).

B. Construction during this phase is using Reversible Traffic Control. Existing Centerline Rumble Strip will be removed on Phase 3.

Response posted 10/03/2017




Inquiry #9: REQUEST FOR CLARIFICATION:
A.
SHEET 27 CONSTRUCTION DETAIL C-1 DETAIL FOR REMOVAL OF EXISTING RUMBLE STRIP SHOWS TO GRIND 5/16" TO REMOVE THE EXISTING CENTERLINE RUMBLE STRIP.
SHEET 71 STAGE CONSTRUCTION SC-2 SHOWS TO COLD PLANE .25' AND PAVE BACK WITH .25' HMA TO REMOVE CENTER LINE RUMBLE STRIP. PLEASE CLARIFY WHICH METHOD OF REMOVAL WILL BE UTILIZED FOR THIS PROJECT.

B.
PLEASE CLARIFY WHAT WILL BE DONE WITH THE EXISTING RUMBLE STRIP ON THE N/B 395 PRIOR TO PLACING TRAFFIC ON THE DETOUR TEMP PAVING PLACED IN STAGE 1 PHASE 1 IN THE AREAS WHERE TEMP PAVING IS NOT PLACED AND TRAFFIC IS RUNNING ON THE EXISTING RUMBLE STRIP.

Inquiry submitted 09/29/2017

Response #1:submitted for consideration
Response posted 10/02/2017


Response #2:Same as Inquiry # 8.

A. Existing Centerline rumble strip will be removed per sheet SC-2 (Sheet 71).

B. Construction during this phase is using Reversible Traffic Control.Existing Centerline Rumble Strip will be removed on Phase 3.

Response posted 10/03/2017




Inquiry #10: REQUEST FOR CLARIFICATION:
A.
SHEET 27 CONSTRUCTION DETAIL C-1 DETAIL FOR REMOVAL OF EXISTING RUMBLE STRIP SHOWS TO GRIND 5/16" TO REMOVE THE EXISTING CENTERLINE RUMBLE STRIP.
SHEET 71 STAGE CONSTRUCTION SC-2 SHOWS TO COLD PLANE .25' AND PAVE BACK WITH .25' HMA TO REMOVE CENTER LINE RUMBLE STRIP. PLEASE CLARIFY WHICH METHOD OF REMOVAL WILL BE UTILIZED FOR THIS PROJECT.

B.
PLEASE CLARIFY WHAT WILL BE DONE WITH THE EXISTING RUMBLE STRIP ON THE N/B 395 PRIOR TO PLACING TRAFFIC ON THE DETOUR TEMP PAVING PLACED IN STAGE 1 PHASE 1 IN THE AREAS WHERE TEMP PAVING IS NOT PLACED AND TRAFFIC IS RUNNING ON THE EXISTING RUMBLE STRIP.

Inquiry submitted 09/29/2017

Response #1:submitted for consideration
Response posted 10/02/2017


Response #2:Same as Inquiry #8, and #9 .

A. Existing Centerline rumble strip will be removed per sheet SC-2 (Sheet 71).

B. Construction during this phase is using Reversible Traffic Control. Existing Centerline Rumble Strip will be removed on Phase 3.


Response posted 10/03/2017




Inquiry #11: REQUEST FOR CLARIFICATION:


WILL CALTRANS ALLOW THE LAST .10' OF RHMA-G CAP TO BE PLACED AT THE END OF THE PROJECT ONCE ALL STAGING WORK IS COMPLETED? PLEASE SEE SECTION 39-2.01C(7) OF THE 2015 STANDARD SPECIFICATIONS BELOW.
39-2.01C(7) Shoulders, Medians, and Other Road Connections
Until the adjoining through lane's top layer has been paved, do not pave the top layer of:
1. Shoulders
2. Tapers
3. Transitions
4. Road connections
5. Driveways
6. Curve widenings
7. Chain control lanes
8. Turnouts
9. Turn pockets

PER THE CALTRANS STANDARD SPECIFICATION AND INDUSTRY BEST PAVING PRACTICES THE CAP LIFT ON ALL THROUGH LANES SHOULD BE COMPLETED PRIOR TO PLACING THE CAP ON ADJOINING SHOULDERS. THE STAGING ON THE PROJECT SHOWS THE CAP BEING PLACED ON THE SHOULDER ( SEE STAGE 2 AND STAGE 3) PRIOR TO THE MAINLINE. THERE ARE ALSO AREAS OF MAINLINE CAP THAT ARE NOT SHOWN IN THE STAGE PLANS AT ALL FOR THE DETAIL B COLD PLANE .25' AND PAVE .15 HMA AND .10 RHMA-G.
It IS IMPERATIVE THAT CALTRANS DESIGNERS TAKE THE PLACEMENT SPECIFICATIONS AS ILLUSTRATED ABOVE AND BEST PAVING PRACTICES INTO CONSIDERATION WHEN DESIGNING SECTIONS AND STAGING FOR ASPHALT AND PORTLAND CONCRETE PAVING JOBS.
IF THE RESPONSE TO THIS INQUIRY IS BID PER THE CONTRACT DOCUMENTS, PLEASE CLARIFY IF THE IP SMOOTHNESS SPECIFICATIONS WILL BE WAIVED IN AREAS THAT BEST PAVING PRACTICES AND THE SPECIFICATIONS SHOWN ABOVE CAN NOT BE IMPLEMENTED ON THIS PROJECT.


Inquiry submitted 09/29/2017

Response #1:submitted for consideration
Response posted 10/02/2017


Response #2:It is allowed for the last .10' of RHMA-G CAP to be placed at the end of the project once all staging work is completed, however the contractor should rake the 0.1' vertical drop off to have a smoother pavement surface for the traffic during Stage 2 construction.
Response posted 10/03/2017




Inquiry #12: What is the depth for the Topsoil and Duff application? We need to know that because the incorporation step is 6" depth. It is incomplete information. For example, if there is a depth of 4" for Duff and 4" of local topsoil and we would need to incorporate 6" deep, we would need to incorporate a total of 14" deep. Please clarify this. Thank you!
Inquiry submitted 10/11/2017

Response #1:submitted for consideration
Response posted 10/11/2017


Response #2:Please see addendum #3, Plan Sheet ECL-1. Local top soil (3 inches) , plus duff ( spread evenly) , is incorporated to a max of 6 inches depth. Bid per current contract documents.
Response posted 10/12/2017


The information provided in the responses to bidder inquiries is not a waiver of Section 2-1.07, "JOB SITE AND DOCUMENT EXAMINATION" of the Standard Specifications or any other provision of the contract, nor to excuse the contractor from full compliance with the contract. Bidders are cautioned that subsequent responses or contract addenda may change a previous response.


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