20B5500_A0002_Atch(1)_Government_Response.pdf

SOLICITATION NO. N4008420B5500

PROJECT TITLE/LOCATION: RUNWAY 02/20 SITE PREPARATION FOR AN/FRN‐49 INSTRUMENT CARRIER LANDING SYSTEM AT U.S. MCAS IWAKUNI, JAPAN (ID#3835200)

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0002, Attachment (1)

Page Section Para.

1 27‐Nov‐19 5 01 35 26A 1.11 Is there any requirements regarding the nationality of the escort?

No. Escort privilege will be applied following received DBIDS.

2 27‐Nov‐19 Will two escorts be required if we work on both on North and South side of the runway on the same day?

Yes. The escorts/interpreters (Radio Communicators) must be located in both sides because the distance between north and south construction sites is long.

3 27‐Nov‐19 4 01 11 00 1.7.1.1, c Are we allowed to ask for the cost if the work is canceled without advance notifications due to the Airfield night time operation ?

Contractor claims will be reviewed at time of incident for validity and determination of equitable compensation.

4 27‐Nov‐19 Would the Government provide the area where temporary utility services are available for a field office and parking space for about 15 vehicles?

Field office is not authorized inside restricted area. The Contractor must provide "Construction Site Plan" for temporary field office and parkings in accordance with para.

"1.3 CONSTRUCTION SITE PLAN" and "3.5.1 Administrative Field Offices" in Section 01 50

00 TEMPORARY CONSTRUCTION FACILITIES

AND CONTROLS.

5 27‐Nov‐19 We estimate it will take about 10 days to complete the filling work. Shall we compact the surface so the filling material will not be blown off by aircrafts' engine?

Please compact tightly and provide water spread on the soil for dust prevention in accordance with para "3.1.5 Excavation" and "3.4 CLEANING OF AIRFIELD SURFACE" in Section 01 35 26A AIRFIELD SAFETY

PRECAUTIONS.

Dust control shall be applied this area in accordance with Section 01 57 19.00 20 Para 3.3.2.

6 27‐Nov‐19 01 35 26A 3.4 Is it acceptable to clean the runway and taxiway with a road sprinkler and a road sweeper after work?

Contractor shall keep the runway and taxiway clean at all time in accordance with Para 3.4 and Para 3.4.1

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

PROJECT TITLE/LOCATION: RUNWAY 02/20 SITE PREPARATION FOR AN/FRN‐49 INSTRUMENT CARRIER LANDING SYSTEM AT U.S. MCAS IWAKUNI, JAPAN (ID#3835200)

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0002, Attachment (1)

Page Section Para.

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

7 27‐Nov‐19 Please extend the due date for inquiries until 10 days after the site visit.

The due date for inquiries remains 29 November.

8 27‐Nov‐19 Please extend the date for bid opening until 14 days after the government provides the responses to inquiries.

The bid opening date remains 13 December. 0002

9 27‐Nov‐19 Would it be possible to consult the contract award date? We would like to have preparation time before receiving the award since 150 days are not enough for both preparation and construction work.

No. Contract award date will be dependent upon Government operational needs.

10 27‐Nov‐19 We would like to request changing the construction duration from 150 days to 270 days. The lead time for personnel DBIDS cards is about 30 days, for flightline access permit and digging permit is about 30 days, for arranging escorts and competent personnel is about 30 days. Also, the work days will be limited due to airfield nighttime operation (5 days/month), adverse weather (4 to 5 days/month), and concrete curing. We are able to work only about 10 days in each month. We need at least 60 work days which means it will take about 6 months (180 days) to complete on‐site work. Therefore, we would like to request extending the construction duration for 60 days.

The Construction period is changed from 150 working days to 150 calendar days.

PROJECT TITLE/LOCATION: RUNWAY 02/20 SITE PREPARATION FOR AN/FRN‐49 INSTRUMENT CARRIER LANDING SYSTEM AT U.S. MCAS IWAKUNI, JAPAN (ID#3835200)

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0002, Attachment (1)

Page Section Para.

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

11 27‐Nov‐19 E‐01 E‐03 ⑦

It is stated on the drawing E‐01 to "provide 3 pipes using jack and bore method under the existing taxiway. The depth of the piping shall be 1200 mm from top of the taxiway edge to top of the new conduit pipes." UTILITY HORIZONTAL DIRECTIONAL DRILLING will be used for this work. Our question is that whether the soil stabilization with cement is conducted in the depth of 1200 mm of the taxiway. Usually, taxiways are stabilized with cement. There is no information regarding soil stabilization and foundation strength in the solicitation. Please provide information regarding existing soil so we can select the method for UTILITY HORIZONTAL

DIRECTIONAL DRILLING.

The horizontal drilling does not hit to existing soil cement stabilized base course, because composition of concrete pavement of the taxiway is 380mm thk. Concrete pavement, 200mm thk. Soil cement stabilized base course and 500mm thk. of gravel base course from the ground surface. (Total depth of pavement composition is 1080mm)

12 27‐Nov‐19 E‐01 E‐02

There is no detail drawing for the hand holes H‐XX‐X HB‐1 and HB‐2. Please provide dimensions of the hand holes.

See Drawing G‐02 Legend and Reference Drawings (6/18‐7/18).

13 27‐Nov‐19 E‐06 E‐07

There is no specification regarding OBSTRUCTION LIGHT. Please provide.

See Drawing E‐06‐5 and E‐07‐5. Model No. OM‐ 3A(TWO LIGHT TYPE). Approved by Civil Aviation Bureau.

PROJECT TITLE/LOCATION: RUNWAY 02/20 SITE PREPARATION FOR AN/FRN‐49 INSTRUMENT CARRIER LANDING SYSTEM AT U.S. MCAS IWAKUNI, JAPAN (ID#3835200)

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0002, Attachment (1)

Page Section Para.

Amend No.

Question No.

Date Received

REFERENCE

QUESTION GOVERNMENT RESPONSE

14 27‐Nov‐19 SPEC 26 41

00.00 20

1.2.2 The spec states that "Material shall be

manufacturer's latest UL approved design.", however, it also states that "Lightning protection system shall conform to ….. JIS A 4201." Please confirm that it is acceptable to use material which conforms JIS.

UL 96 is more specific than JIS A 4201, so the former must be used as the primary reference regarding lightning protection materials. If selecting Japanese materials, please consult UL 96 for compatibility.

15 27‐Nov‐19 SPEC 26 41

00.00 20

1.2.2 3.4.3

The spec paragraph 3.4.3, Bonding Test for Lightning Protection System states that "Perform test in accordance with the requirements of NAVSEA OP5." However, the spec paragraph 1.2.2 states that "Lightning protection system shall conform to ….. JIS A 4201." Is it acceptable to perform bonding test in accordance with the requirements of JIS?

No. The test must be performed in accordance with NAVSEA OP5.