21B5501_A0003_Atch(1)_Pre-Bid_Inquiries.pdf

SOLICITATION NO. N4008421B5501

AIRFIELD IDIQ CONTRACT FOR VARIOUS PROJECTS AT U.S. MARINE CORPS AIR STATION IWAKUNI, JAPAN

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0003 Attachment (1)

Page Section Para.

1 18‐Jun‐21 3/36/539 SECTION 01 14 00 1.3.4 It is stated that "Regular working hours must consist of an 8‐

1/2 hour period established by the Contracting Officer, between 8:00 a.m. and 4:30 p.m., Monday through Friday, excluding Government holidays, unless otherwise specified in a Task Order."

Therefore, please let us know if the unit price can be to be proposed based on the working circumstance mentioned above.

Electrical 078 ‐ 102, daytime work is assumed and 103 ‐ 121 night work is assumed. Civil work is 100% night work.

2 18‐Jun‐21 3/36/539 SECTION 01 11 00 1.5.1.1 If the Night Work is required in a Task order, please let us know how the unit price we proposed on SCHEDULE OF INDIFINITE QUANTITY WORK will be modified.

Contractor must submit bid as per specifications provided. 0003

3 18‐Jun‐21 4/36/539 SECTION 01 11 00 1.5.1.2 If "Phased Construction" is required for a project, please let us know how the unit price we proposed on SCHEDULE OF INDIFINITE QUANTITY WORK will be modified.

Contractor must submit bid as per specifications provided. 0003

4 18‐Jun‐21 4/36/539 SECTION 01 11 00 1.5.1.2 If "On‐Site Work Limitation" is required for a project, please let us know how the unit price we proposed on SCHEDULE OF INDIFINITE QUANTITY WORK will be modified.

Contractor must submit bid as per specifications provided. 0003

5 18‐Jun‐21 8/424/539

4‐5/195‐ 196/539

SECTION 32 13

13.43

SECTION 01 45

00.00 20

1.4.1 a.

1.5.1.2

It is stated that "a minimum of 1 year experience as a CQC System Manager on an airfield construction project.".[SECTION 32 13 13.43] Please remove this qualification because this is not correspond with SECTION 01 45 00.00 20/ para 1.5.1.2 Qualifications.

Section 1.4.1 has been updated to remove this qualification requirement, please see the Revised Specification, Attachment (2).

6 18‐Jun‐21 8/424/539 SECTION 32 13 13.43

1.4.1 b.

Please remove this qualification because we, Japanese, are not familiar with ACI Concrete Transportation Inspector at all.

Section 1.4.1 has been updated to remove this qualification requirement, please see the Revised Specification, Attachment (2).

7 18‐Jun‐21 8/539 SUPPLEMENTARY

EXPLANATION OF

WORK

32 13 13.43

A034 "305 Thk. High Temperature Concrete Paving (Section32 13 13.43)" should be Continuous Reinforced Concrete Pavement (CRCP).

Because of CRCP, please clarify if the work is necessary to not only demolish but also pave at least one (1) lane.

Work shall include paving at least one (1) lane. 0003

8 18‐Jun‐21 SECTION 01 11 00 Please let us know if the Government will provide the appropriate laydown area in a Task Order, or not.

Laydown areas are individual to each project site. This will be discussed/negotiated with the Government at the "pre‐ construction meeting" for each respective project.

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0003 Attachment (1)

Page Section Para.

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

9 18‐Jun‐21 SECTION 01 11 00 Please let us know if the Government will provide the appropriate site office area in a Task Order, or not.

Site office areas are individual to each project site. This will be discussed/negotiated with the Government at the "pre‐ construction meeting" for each respective project.

10 18‐Jun‐21 4/31/539 SUPPLEMENTARY

EXPLANATION OF

WORK

Lighting (A102)

It is stated that "Provide a boat with Captain for access the approach light on the sea.".

Please let us know if the working permission form Fisheries Cooperative is required or not.

Otherwise, please let us know the procedures such as permission not only the Government but also Japanese agencies, Please contact the Fisheries Cooperative if permission is required from them. The waters near Iwakuni Port are under the control of Yamaguchi Prefecture. Please inquire at the port management office. Permission from MCASI Harbor Operations and Airfield Operations is required for the procedures for work permits in the base restricted area.

11 18‐Jun‐21 4/31/539 SUPPLEMENTARY

EXPLANATION OF

WORK

Lighting (A102)

Please clarify the details such as working hours and boat detail.

If the night time work required on the sea, lighting fixture replacement/installation work will be more difficult than the day time work.

Daytime work is assumed. The boat should be capable of carrying the necessary personnel and materials required by the contractor.

12 18‐Jun‐21 4/31/539 SUPPLEMENTARY

EXPLANATION OF

WORK

Lighting (A102)

Please clarify whether the A102 includes the cost of providing approach lights for removal / restoration.

Removal/Restoration is a separate line item. 0003

13 18‐Jun‐21 2/31/539 SUPPLEMENTARY

EXPLANATION OF

WORK

A016‐A021 Excavation and Grading

It is stated that "b. Contractor shall field verify all underground utilities and repair all damage utilities caused during construction at contractor’s expense."

Please let us know whether the Government will provide all underground utility As‐Build Drawing after Task Order..

The information of underground utilities will be provided by the Government before starting the construction. The underground utilities, under normal circumstances, will not be affected by the paving and marking projects.

14 18‐Jun‐21 2/31/539 SUPPLEMENTARY

EXPLANATION OF

WORK

CRACK

SEALING AND

BITUMINOUS

Regarding the repairing work, please let us know whether it is possible to set curing time and space after construction until appropriate designed strength.

The construction including curing of paving/patching material shall be done within designated work during time (night work will be limited between 11:00pm to 6:00am).

15 18‐Jun‐21 2/31/539 SUPPLEMENTARY

EXPLANATION OF

WORK

Please let us know if these estimated quantity can be proposed as the minimum guaranteed quantity for each task order.

Estimated quantity is not a guaranteed minimum, and it is only for unit price calculation. Actual quantity will depend on each project task order.

16 18‐Jun‐21 SF1442 Please extend BID proposal date because we do not have enough time to summarize the price proposal after getting the Government response for inquiries within the limited days.

Bid Opening Date is extended to 07 Jul 2021 09 Jul 2021, 11:00AM.

17 18‐Jun‐21 29/539 SUPPLEMENTARY

EXPLANATION OF

WORK

A‐016‐A021 Excavation and Grading f.

It states that the contractor will be directed the material unload location on the base. The contractor will consider the hauling route in the base. Let us know where will the area be directed.

Specific stock yard for the materials and equipments for the contractor will be provided per project task order.

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0003 Attachment (1)

Page Section Para.

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

18 18‐Jun‐21 29/539 SUPPLEMENTARY

EXPLANATION OF

WORK

A022‐A026 Aggregate b.

Can the aggregate be stockpiled on the laydown area near the airfield? If the material cannot be stockpiled near the work site, should we have to include extra hauling time and cost for night time delivery?

Specific stock yard for the materials and equipments for the contractor will be provided per project task order.

19 18‐Jun‐21 425/539 SECTION 32 13 13.43

1.4.2 d.

Profilograph Operator:

There is NO certified operator in Japan. However, we can operate and collect the data properly. Please delete this sentence.

Paragraph 1.4.2 d. has been removed, please see the Revised Specification, Attachment (2).

20 18‐Jun‐21 473/539 SECTION 32 13 13.43

2.1.1.3 If the existing concrete, such as runway, taxiway, VTOL pad, will have bumps or be removed and repaved, the new concrete surface shall be needed diamond grinding?

The VTOL pad is the only area using HTC that needs diamond grinding. Section 32 13 13.43 explains how to improve the bump using grinder if pavement surface is uneven.

21 18‐Jun‐21 8/539 SCHEDULE OF

INDEFINITE

QUANTITY

WORK

A023 A024 A025

Please specify either M‐30‐40 or C‐30‐40, which are the basic course materials since the price proposals might be fluctuated significantly.

M‐30‐40 for base aggregate will only be used. C‐30‐40 has been deleted from unit price, please see the Revised Specification, Attachment (2) and the Updated Schedule of Indefinite Quantity Work, Attachment (3).

22 18‐Jun‐21 8/539 SCHEDULE OF

INDEFINITE

QUANTITY

WORK

A026 Please let us know the type of cement and the design additive amount.

Item 026 has been deleted, please see the Revised Specification, Attachment (2) and the Updated Schedule of Indefinite Quantity Work, Attachment (3).

23 18‐Jun‐21 9/539 SCHEDULE OF

INDEFINITE

QUANTITY

WORK

A030 Please let us know if temporary Edge Lights are required or not when the asphalt concrete paving work by task order is designed at shoulder area.

The existing edge lights shall remain without damages. 0003

24 18‐Jun‐21 12/539 SCHEDULE OF

INDEFINITE

QUANTITY

WORK

01 11 00

A103 ‐A121

1.13.1

Please let us know if the replaced existing lights to should be replaced is vested in the Government Property and delivered to Bldg.7725 (Facilities Recycle Center) or not.

Oherwise please let know if it is necessasry for us to dispose the replaced existing lights.

Government property must be returned back to the Government.

25 18‐Jun‐21 4/31/539 SUPPLEMENTARY

EXPLANATION OF

WORK

Lighting (A102)

Please let us know what kinds of submittals are necessary to get a permission from not only the Government but also Japanese agencies.

Please contact the Fisheries Cooperative if permission is required from them. The waters near Iwakuni Port are under the control of Yamaguchi Prefecture. Please inquire at the port management office. Permission from MCASI Harbor Operations and Airfield Operations is required for the procedures for work permits in the base restricted area.

26 18‐Jun‐21 N/A Items 001‐030.

Are these items supposed to be conducted during night time?

All civil work will be accomplished during night time. 0003

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0003 Attachment (1)

Page Section Para.

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

27 18‐Jun‐21 N/A Items 031‐046.

Are these items supposed to be conducted during night time?

All civil work will be accomplished during night time. 0003

28 18‐Jun‐21 N/A Items 047‐063.

Are these items supposed to be conducted during night time?

All civil work will be accomplished during night time. 0003

29 18‐Jun‐21 N/A Items 064‐071.

Are these items supposed to be conducted during night time?

All civil work will be accomplished during night time. 0003

30 18‐Jun‐21 N/A Items 078‐121.

Are these items supposed to be conducted during night time?

Electrical 078 ‐ 102, daytime work is assumed and 103 ‐ 121 night time work is assumed.

31 18‐Jun‐21 N/A Item 072.

This item states "Lighting for Night Work ‐ 1kw x 6ea with track(One night rental)". Estimated Quantity is 260.0 EA. Is this 260 corresponding to track one day rental fee? Or is this corresponding to lightings(6EA) on a track? Please clarify.

The quantity corresponds to track one night rental fee. 0003

32 18‐Jun‐21 N/A Item 026.

Please provide requirement for (soil cement stabilized). Is using powder‐type‐limestone‐material acceptable for stabilization method?

Also, please provide stabilizer material volume to be admixed to soil, such as _kg/m3.

Item 026 has been deleted, please see the Revised Specification, Attachment (2) and the Updated Schedule of Indefinite Quantity Work, Attachment (3).

33 18‐Jun‐21 N/A General.

For saw cuts item 001 to 005, there is a statement "minimum of 5M per order", but not for other work items.

Please specify the minimum quantity per order for each type of work (item 006 to 071).

Only saw cutting is applicable. No minimum quantity can be predetermined for other line intems.

34 18‐Jun‐21 N/A General.

Please inform how many access gates are there and how long does it take to reach the construction site.

Gate will be determined at a pre‐construction meeting.

Estimated time to reach the construction site will vary base on project location per each task order.

35 18‐Jun‐21 N/A Item 022‐030.

Please inform approx. width of aggregate and Asphalt pavement expected in task order.

Width of base and pavement surface cannot be predetermined. It will be determined when task order is issued.

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0003 Attachment (1)

Page Section Para.

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

36 18‐Jun‐21 N/A Item 026.

Please inform the specification of soil cement stabilization.

Please specify the amount of cement to be added.

Is it correct to assume that this is a method of improving the existing ground by adding cement?

Line items A/B/C026 have been removed, please see the Revised Specification, Attachment (2) and the Updated Schedule of Indefinite Quantity Work, Attachment (3).

37 18‐Jun‐21 N/A Item 031‐040.

Is it correct to assume that the concrete pavement and crack repair work will be done by hand?

Most repairs will be spall and crack repair which will require only hand tools. But for HTC, repairs will require heavy machinery.

38 18‐Jun‐21 N/A Item 031‐040.

Please indicate the cross‐sectional view of the concrete pavement.

Cross‐sectional views are not necessary. All informations are covered in the unit price table.

39 18‐Jun‐21 32 13 13.43 Item 034.

Please specify the mix of the high temperature concrete.

Also, is this acceptable if using aggregate procured in Japan?

Specification section 2.12 ‐2.13 provides information on strength and mix, respectively. Aggregate produced in Japan will be acceptable.

40 18‐Jun‐21 32 13 13.43 2.11.1 Item 034.

Does the IDIQ contract require that the plant be located outside the base, 15 minutes away from the launch site? In that case, the fixed cost of the plant and equipment will be enormous. Please clarify.

Paragraph 2.11.1.1 has been revised per the Revised Specification, Attachment (2). Contractor shall locate batching and mixing plant within manufacture's recommended travel time.

41 18‐Jun‐21 32 13 13.43 2.1 Item 034.

There is a statement that it takes 100 days for sampling and another 100 days after the application of sodium silicate.

Please provide a detailed explanation. Paragraph 3.15.3 states that the 90‐day strength of concrete is to be compared to the Correlation Ratio. Does this mean that we need to perform a destructive test to actually measure the 90‐day strength?

The statement is not applicable for repair. Yes, destructive testing is required.

42 18‐Jun‐21 32 13 13.43 2.12.1 Item 034.

The flexural strength is 4.5 MPa in 28 days, which is almost equivalent to the flexural strength requirement of 4.48 MPa for concrete pavement in Section 32 13 13.06. Is this correct?

Correct. Flexural strength is 4.5 Mpa at 28 days. 0003

43 18‐Jun‐21 32 01 19 Item 040‐41.

There is no spec section 32 01 19. Please specify details, including material name used. (polysulfied sealer)

Spec section 32 01 19 has been added per the Revised Specifiaction, Attachment (2).

44 18‐Jun‐21 32 01 19 Item 042.

There is no spec section 32 01 19. Please specify details, including material name used. (silicone sealer)

Spec section 32 01 19 has been added per the Revised Specifiaction, Attachment (2).

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0003 Attachment (1)

Page Section Para.

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

45 18‐Jun‐21 32 01 19 61.01 Item 043‐45.

Please specify details, including material name used. (both polysilicone sealer)

Follow spec in the specification using specified sealer. 0003

46 18‐Jun‐21 N/A Item 046.

Please specify details, including material name used.

(sodium silicate coating)

The material and method of application shall be in accordance with manufacture recommendation.

47 18‐Jun‐21 N/A Item 053‐063.

Regarding pavement markings, please clearify if grass beads are required or not for each work item. Also, please indicate grass beads volume to be added.

Comply as specified in the specification. 0003

48 18‐Jun‐21 N/A Item 047‐062.

Please inform details for pavement markings such as material volume to be applied, and coating thickness.

Comply as specified in the specification. 0003

49 18‐Jun‐21 N/A Item 055‐058.

Please provide necessary information for estimate, details for letters.

Size varies and marking cannot be defined based on height of lettering alone.

50 18‐Jun‐21 N/A Item 059‐061.

Please provide details for arrow, handicapped sign, and bicycle sign.

Refer to road markings provided by GOJ. 0003

51 18‐Jun‐21 N/A Item 059‐061.

There are two types of stop signs on the drawing. Which one should be referenced for estimate?

Refer to "Access Road Stop Sign Marking ‐ 1" detail. 0003

52 18‐Jun‐21 32 17 23.00 20 Item 015.

Is it acceptable to use a "scraping method (cutter‐blade‐ rotary‐method)" to remove existing pavement marking?

Yes. 0003

53 18‐Jun‐21 32 13 13.06 Item 068.

Please specify the diameter for reinforcing steel.

This information is necessary for cost estimate since material cost is different depend on the re‐bar dia.

The diameter should not affect cost drastically. Contractor shall bid per spec provided.

54 18‐Jun‐21 Lighting Item 078‐121 What is the approximate quantity of light bulbs to be replaced per task order? (e.g., 1 to 10, 10 to 20, or more) Assuming that the work will be done at night, we cannot give the unit price for each item without a rough estimate of the labor cost calculation.

For electrical 078 ‐ 102, daytime work is assumed and for 103 ‐ 121 night time work is assumed. The quantity varies.

55 18‐Jun‐21 Lighting Item 100 There is no specification for flood light. Please provide spec and existing product information.

The existing lamp is a high pressure sodium, 940 watt, and clear glass.

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0003 Attachment (1)

Page Section Para.

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

56 21‐Jun‐21 General Will all work will be estimated as night time work for this contract?

All civil work shall be estimated as night work. The Government anticipates electrical work as night work but some may be performed as daytime work.

57 21‐Jun‐21 8, 14, 22 SCHEDULE OF

INDIFINITE

QUALITY WORK‐

"A","B" & "C"

A017 B017 C017

SCHEDULE OF INDIFINITE QUALITY WORK‐"A","B" & "C",

A017,B017 & C017 states "Excavation ‐ Back‐hoe 0.45m3 With Shoring". Would you please advise the approximate excavation height for this work. Also, please advise what is the usage and specification of this shoring. This is necessary to select type of sheet piles and this will affect the proper estimation.

Installation of underground electrical/communication wiring is expectedto use "Light gauge steel sheet pile‐Type II" where excavation depth is over 1500mm.

58 21‐Jun‐21 29 SUPPLYMENTAR

Y EXPLANATION

OF WORK,

A016‐A021 Excavation and Grading.a

SUPPLYMENTARY EXPLANATION OF WORK, A016‐A021

Excavation and Grading. a states "Dispose of surplus excavated material shall be off of Government property."

Please advise the surplus excavated material shall be added to which line item of A‐016‐A021.

Surplus material are included in all line items as they are expected.

59 21‐Jun‐21 10, 17, 24 SCHEDULE OF

INDIFINITE

QUALITY WORK‐

"A","B" & "C"

A071 B071 C071

SCHEDULE OF INDIFINITE QUALITY WORK‐"A","B" & "C",

A071,B071 & C071 states "Sodding, fertilizing and ground leveling(Replace exist soil with new 100thk D.G)Does it include transporting existing excavated soil, decomposed granite soil, and off‐base disposal of excavated soil?

Yes, all items stated. 0003

60 21‐Jun‐21 9, 16, 23 SCHEDULE OF

INDIFINITE

QUALITY WORK‐

"A","B" & "C"

A030 B030 C030

SCHEDULE OF INDIFINITE QUALITY WORK‐A030, B030 &

C030, Asphalt Concrete Paving t=50mm (Section 32 12 17) 2,000SM. Please advise if there is minimum quantity per order for proper estimation.

Estimated quantity is not a guaranteed minimum, and it is only for unit price calculation. Actual quantity will depend on each project task order.

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0003 Attachment (1)

Page Section Para.

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

61 21‐Jun‐21 9,16,23 SCHEDULE OF

INDIFINITE

QUALITY WORK‐

"A","B" & "C"

SECTION 32 13

13.06

A034 A046 B034 B046 C034 C046 2.11.1

SCHEDULE OF INDIFINITE QUALITY WORK‐A034, B034 &

C034 states 305 Thk. High Temperature Concrete Paving (Section32 13 13.06) 1.0 SM. Also, A046,B046 & C046 states Sodium Silicate Coating on the High Temperature Concrete paving. The requested QTY is not realistic QTY becuase the High Temperature Concrete as per Section 32 13 13.43 is specical concrete that using aggregates which difficult to obtain here in Japan. Also, Section 32 13 13.06 Para.2. 11 .1.1 Batching and Mixing Plant Location states "Locate the batching and mixing plant off Government premises no more than 15 minutes haul time from theplacing site." There is no batch plant which can be supplied High Temperature Concrete within 15 Minutes here in Iwakuni Area.To satisfy the Specification requirements, required to have a batch plant close to Airefield. Due to above reason, please re‐ consider the requisted quantity for A034,B034,C034,A046,B046 & C046.

The estimated quantity for these items was revised, please see Revised Specification, Attachment (2) and Updated Schedule of Indefinite Quantity Work, Attachment (3).

Contractor shall locate batching and mixing plant within manufacturer's recommended travel time.

62 21‐Jun‐21 10,17,24 SCHEDULE OF

INDIFINITE

QUALITY WORK‐

"A","B" & "C"

A068 B068 C068

SCHEDULE OF INDIFINITE QUALITY WORK‐A068, B068 &

C068 states Reinforcing Steel QTY 3.0TON. Please provide more detailed information such as reinforcing bar diameter and specification for proper estimation purpose.

The specific re‐bar arrangement or diameter size can not be predetermined. Bidders shall estimate in weight basis as defined by market trading.

63 21‐Jun‐21 General Based on above RFI concerns, please consider allowing for 1 additional week for proposal submission following receipt of Amendment with RFI Responses.

Bid Opening Date is extended to 07 Jul 2021 09 Jul 2021, 11:00AM.