Amendment 0009.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

SOLICITATION NO. N40085-20-R-0021, DESIGN-BID-BUILD (DBB), P-381, MULTI MISSION DRY DOCK #1, PORTSMOUTH NAVAL SHIPYARD, KITTERY, ME

The purpose of this amendment is to provide responses to PPI's and extend the Step 2 proposal due date to 29 January 2021 NTL 2:00 P.M EST. The PPI cut-off date is 8 January 2021.

See Continutation Page(s).

1. CONTRACT ID CODE PAGE OF PAGES

J 1 19

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 16-Dec-2020

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X N4008520R0021

X 9B. DATED (SEE ITEM 11)

31-Aug-2020

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer X is extended, is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

16-Dec-2020

CODE

NAVFACSYSCOM MID-ATLANTIC

ACQUISITION CORE

9324 VIRGINIA AVENUE

NORFOLK VA 23511-3095

N40085 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

N4008520R0021

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE (SF 30)

The following have been added by full text:

AMENDMENT 0009

PPI#

Section of RFP or Page Number

Paragraph Reference

Drawing Number

Question RESPONSE

36 N/A N/A

CR01,

CF102,

MA105

In reviewing the final drawings, we have noticed the following utilities all going thru the northwest corner between the existing substation and the expansion.

An 8" sewer cleanout, 1 "water line with corporation stop and the 1" HPA line. This is a 6-foot-wide area and we do not believe all these utilities can fit in this area without stacking them making future maintenance virtually impossible.

Stacking of some utilities in the area will be required due to congestion.

38 33 20 00 NA NA

Please provide specifications for check valves and pressure relief valves.

Revised specifications will be provided in upcoming amendment.

39 33 11 00 NA NA

Please provide specifications for ball valves.

Revised specifications will be provided in upcoming amendment.

59 23 64 26 2.15.6 PM704

Reference Spec 23 64 26 and Sheet No. PM704 regarding Intake Screen Assembly. Spec 23 64 26-2.15.6 states to provide a custom switch to use house air as a manual backup mode. Sheet no. PM704 Sequence of Operations House Air Emergency Backup Control describes the use of a toggle switch to bypass the compressor automatic control.

Basis of Design Johnson Screen has stated "Johnson will install a manual locking butterfly valve with check valve to connect house air.

Yes the provision of manual locking butterfly valve with check valve is acceptable in lieu of custom switch or toggle switch.

The system will not operate in automatic unless pressure is above 150 psi. The valves can operate manually if required".

Please confirm that Johnson Screen provision of a forestated manual locking butterfly valve with check valve is acceptable in lieu of custom switch or toggle switch.

84 03 31 29 3.4.13 YS512

The plan view in the upper left corner references Note 1 which states “Provide contact grouting in CJ with epoxy grout after closure placement concrete has been placed and cured.” The specification concludes with “… to fill all voids between the concrete placements up to the exposed surface.” Am I correct to understand that this is essentially epoxy crack injection performed in all construction joints inside/above all waterstop placements in all monolith faces? For example, in the dry dock floor closures epoxy grout is to be injected to a depth of about +/- 7 feet along the entire length of all construction joints.

Correct

00 21 16 and Document 00 41

Section 00 21 16, page 28 of 69, incorporates by full text FAR 52.228-1 – Bid Guarantee, part c. states “The amount of the bid guarantee shall be 20 percent of the bid price or $3,000,000, which ever is less.-“ Addendum #6 included Attachment H- Price Proposal Form titled Document 00 41 00. Part 1.1.b states “ The minimum bid guarantee shall be 100 percent of the amount of CLIN 001a through 001L Base Amount.” Please confirm the bid guarantee (bid bond) required by bidder shall be in

Amount shall be at least 20 percent of the proposed price, but shall not exceed $3 million accordance with FAR 52.228- 1.

92 N/A N/A G-130 &

CS509&E

S206

Drawing G-130 calls out a 63" x 19" 14 way (7 x 2 Conduit) from MHAC-512 to the existing Duct bank thru the Berth 1 tunnel. Drawing ES206 calls out a 51.6 x 20.4 Duct bank for the same run and Section A2 on CS509 shows the dimensions for the same Duct bank to be 36 - 15/16" x 12-3/16”. please advise as to the correct Duct bank size.

Ductbank thru the Berth 1 tunnel is 63"x19.5". Noted sheets will be updated in an amendment.

93 N/A N/A G-130

The section on G-130 shows the 4" HPS conflicting with the 63" x 19 " Duct bank.

Please advise as to how this is to be handled.

Relocation of existing utilities within the Berth 1 tunnel to accommodate the new electric ductbank are shown in the mechanical planset. References to the mechanical sheets will be added to G-130 and updated as an amendment.

01 44 00.22 (Specs V1 p292 of 1192)

ARCHAEOLOG

ICAL

MONITORING

(PWD ME)

NA

C-001 (V2 P1 p8 of 153)

On drawing C-001, Environmental Note 1 refers to sheet G-147 and G-148.

Please provide these drawings

The note has been updated to reference Sheets G-131 and G-132. Revised drawing will be provided in upcoming amendment.

95 N/A N/A BP101

Please confirm the sheet pile wall shown on drawing BP101 is to be left in place and not required to be removed after construction of the utility enclosure.

The sheet pile wall may be left in place, but will need to be cut down where it interferes with permanent features.

96 N/A N/A BP102

Construction Sequence Note 7 on drawing BP102 calls for the installation of the sheet pile around after excavation is completed in Note 6. Can sheet pile install be completed prior to excavation of the Utility Enclosure tunnel?

The intent or performing the excavation first is to remove the existing rockfill such that sheet piles can be driven.

Contractor may propose an alternate sequence if they use a method that allows sheet piles to be driven through the existing rockfill.

97 N/A N/A ES605

EMH's AC513 & AC 515 are not listed on the EMH schedule. What type are these two EMH's?

The identifier AC-513 is used twice on the drawings; once on ES105 and once on ES411. See also ES518 and ES519.

AC-513 is an existing manhole and AC-515 is a new AC-515 is missing from the schedule but is shown on drawing ES103 and drawing ES518. These issues will be corrected by amendment.

98 N/A N/A

ES605 &

ES411

EMH's 513 & 502 are called out as CIP per Keynote 1 are CIP. The EMH schedule has AC502 & AC513 as Precast.

Which is correct?

AC-513 is an existing manhole, AC-502 is a type 2 manhole. These issues will be corrected by amendment.

99 N/A N/A US400-B5

Please confirm all steel are galvanized for the stairs and platform at every level. Please confirm that the note about stainless steel on the detail is in error.

Confirmed for both.

Stainless steel will be changed to galvanized by amendment

100 N/A N/A

PS101 /

PS402

Please confirm that the diamond plates are 1/2" thick and are stainless steel.

Confirmed. 1" thick reference on PS101 will be changed to 1/2" by amendment

101 N/A N/A CS108

In reference to the Drainage Structures listed on CS108 it appears that many of the structures are undersized for the proposed pipe diameter.

For instance, a 36" RCP pipe normally requires a 48" opening which would require a minimum of a 72" structure.

Drainage manhole sizes will be updated in an amendment.

Specification 03 31 29 Marine Concrete

3.4.5

This specification section requires wall placements greater than 5-foot thickness to be a maximum 5-foot lift height for temperature control.

We suggest that you consider changing this specification requirement for lift heights to be determined by the Mass Concrete Thermal Control Plan that must be submitted as described in Section 1.8.7.

There are more economical ways to control concrete temperature in mass placements than being restrictive on lift heights. In addition, a maximum 5-foot lift thickness requirement will produce dozens of more horizontal joints in the exterior walls, the entrance structure, the infill concrete, the stitch

The specification section is being revised to state that the lift heights will be limited per the approved Mass Concrete Temperature Control Plans prepared by the Contractor and based on the results of the Contractor's thermal modeling and mass concrete mock-ups.

pours, and the precast monoliths themselves creating more opportunity for water leakage.

103 NA NA NA

Does hazardous level lead contaminated dredge sediments have to be dewatered into a contained system?

The area of hazardous level lead dredge material that has been identified is being removed under the P-310 contract.

For sediment that contains hazardous levels of lead, delineated sediment must be removed via standard dredging techniques (clamshell bucket), dewatered on the barge and direct loaded into a watertight transport vehicle and transported to the Portsmouth Naval Shipyard (PNSY) Hazardous Waste Storage Facility (Building 357) where it will be weighed and manifested. Dewatered dredge material must pass the paint filter test with amendments added as needed prior to transport.

The material will then be directly transported to a Navy-approved licensed disposal facility permitted to dispose of RCRA hazardous waste.

104 NA NA NA

Would additional permitting be required to discharge the water within the basin of DD1W and DD1N post setting of the monoliths?

No additional permitting is required for water discharges within the basin resulting from monolith placements.

105 N/A N/A

CS103 &

CS107

Drawing CS103 shows no CIP Stairs and Man gate at the PDIC walls while drawing CS107 shows CIP stairs and a man gate. Are there stairs and a man gate at the PDIC walls?

There are no stairs/man gate for access to PIDC area. The plans will be updated by amendment.

106 N/A N/A

CS401 &

ES411

Existing EMH's AC321 & DC-D9 in the substation expansion area will need to have the frame & grate castings raised approximately 2.5'. We have not found any details for this. Are we to

Correct. Precast rings shall be used. A detail will be provided by amendment assume that this is to be accomplished with precast rings?

03 31 29, page

1.8.7(1) Y-002

Reference the Owner response to our previous question #180 (Amendment 005, Question 226), which states that the maximum concrete temperature shall be in accordance with the Thermal Control Plan. Drawing Y-002 has not been corrected, and still states that the maximum concrete temperature during curing is 120 degrees for Dry Dock Floor, Walls, Entrance and connections with Drilled Shafts, and 150 degrees otherwise. Please delete or correct notes 13.B.a and b from drawing Y-002.

Notes 13.A, 13.B and 13.C are being deleted from Y- 002 and Note 13 is being revised to refer to Specification 03 31 29, Paragraph 1.8.7 for the concrete temperature requirements.

108 NA NA YS129

Det B5/YS129 indicates grating to be 19-W-4 with 2- 1/4"X3/8 bearing bars (19W4 means welded grating, bearing bars at 1-3/16" OC, and cross bars at 4" OC). Cross bar spacing is not provided but section (cut through the cross bars) scale spacing at 1-3/16 OC. There are also other lines on the bearing bar suggesting another bar might be running parallel to bearing bars.

Please clarify grating requirements for the sand trap grating.

Cross-bar spacing is 4" as specified by the designation 19-W-4. The bars going in and out of the section are the 2-1/4"x3/8" bearing bars spaced at 1- 3/16", as specified by the designation 19-W-4. The cross-bars are shown by the horizontal lines between the bearing bars.

The zig-zag line across the top of the grating is the banding bar around the perimeter.

109 NA NA

YS130,

YS131,

YS134,

YS135

On drawings YS130, YS131, YS134, and YS135 there is a note at the rudder pit referencing drawing YS611.

YS611 does not exist. It appears correct drawing is YS578. Please confirm.

Confirmed. The drawing references are being corrected to reference

YS578.

110 NA NA

CS103,

TS301

Please clarify the final surface treatment on the inside (dry dock side) of the crane rail turnout area. CS103 shows the proposed pavement section stopping along the northern edge of the proposed crane rail beams. TS301 depicts additional materials required so that the finished grade is

Final surface treatment at the crane rail turnout is bituminous concrete.

Sheet CS103 will be updated in an amendment.

flush with the top of crane rail, but no details are provided.

Please also provided clarity on the areas between the pile caps where select materials may be required.

111 NA NA

CS107,

US403

CS107 depicts proposed grades between DD1E and the southern edge of the proposed crane rail beam. US403 shows a slab on grade around the west and northwest side of the Utility Enclosure but there are other areas left in question.

Can you please provide a plan view that depicts the final surface treatment between the dry docks and the crane rail beams?

Drawings YS118, US400 (plan views), YS338, YS340, YS341, YS342

(section views) provide the information.

112 N/A N/A

ES411 &

CS111

DMH-T4 is between the substation east wall & the exist duct bank which runs along this wall from EMH AC-36 to the south. A scaled measurement has 3.2 feet between the duct bank and the new retaining wall which will not allow installation of the 4' inside diameter manhole.

Please advise.

The layout will be revised to provide additional separation. Sheets will be revised as an amendment.

113 N/A N/A

CS111 &

MT108

Pipe from DMH T1- DMH T2 appears after overlaying the drawings to pass through the corner of new CA & HPS MH 3563. Should this pipe be installed below the manhole or routed around it?

The layout will be revised to provide additional separation. Sheets will be revised as an amendment.

114 N/A N/A

CS301 &

CS401

Support of excavation will be required for construction of the substation walls. With a two-sided formed wall, we would need 3 feet off the face of wall to allow formwork operations. If the 1" HPA on the west side and the fresh water & sanitary sewer on the north wall must be constructed prior to this the room is not available for this. Please advise as to what utilities are required to be in service prior to retaining wall construction.

Temporary utilites must be provided to building 175.

Specification 01 50 00.00 22 will be revised in an amendment.

Spec Section 03 30 00 and 03 31

1.2 NA

Concrete for the project is defined as the following:

The following footnote is being added below the

29 "Non-Marine Backfill Concrete" is any concrete that is used for miscellaneous work such as backing, sidewalks, and unreinforced applications.

"Non-Marine Structural Concrete" is any concrete that is used in reinforced applications and is not in contact with seawater of brackish water, tidal variations, splash, of spray from water in navigable waterways.

"Marine concrete" is all concrete that will be in contact with seawater or brackish water, tidal variations, splash, or spray from water in navigable waterways. All concrete shall be considered marine concrete unless otherwise noted.

Please clarify which concrete is required for the cast-in-place Center-Wall In-Fill Concrete.

table in Concrete Note 2 on Dwg. Y-002:

* WITHIN THE CENTER

WALL PRECAST

MONOLITHS, NON-

MARINE STRUCTURAL

CONCRETE SHALL BE

USED AS INFILL

WITHIN THE

FOLLOWING LIMITS:

MONOLITH B1:

BETWEEN

ELEVATIONS -31.50

AND -16.50;

MONOLITHS B2-

B5: BETWEEN EL. -31.50

AND EL. -5.28;

MONOLITH B6:

BETWEEN EL. -27.00

AND EL. -5.28;

MONOLITHS B7 -

B9: NON-MARINE

STRUCTURAL

CONCRETE SHALL NOT

BE USED.

WITHIN THE

CLOSURE

PLACEMENTS

BETWEEN CENTER

WALL MONOLITHS,

ONLY MARINE

CONCRETE SHALL BE

USED.

116 NA NA ES609

The communication equipment schedule list the Fiber Optic Cabinet to be the same dimensions as the RFID Fiber Box. Drawing ES502 Tel-com Cabinet Detail A5 list different dimensions. Please clarify which is required.

The detail on drawing ES502 is incorrect and will be changed to match the schedule.

117 NA NA

ES603

Note 1

Is the intent of this note to require a temporary cable be installed and spliced in Manholes AC-308 or DC-D8 (as applicable), temporarily routed to load and terminated?

Then to completely repeat the process with another cable once construction of new duct bank is complete? Or can the temp cable be left long enough to be rerouted in new duct bank and only re-terminated at the load being served?

Clarification: Assuming this question refers to ED603 instead of ES603.

Removing and reinstalling feeder cable will not be allowed as it can be damaged easily during this process. All feeders installed in raceways must be new cable.

118 NA NA PE609

Drawing indicates Bubbler Level Panels for the Dewatering wet well, Drainage wet well, DD#1W, and DD#1N. Drawing PI102, PI401, PI603, and PI604 only indicate Bubbler Level Panels for the Dewatering and Drainage Wet Wells. Please clarify which quantities are correct.

The PI drawings are correct. PE609 will be changed to match.

119 NA NA PE609

Drawing indicates Chart Recorders LI101, LI103, LI201, LI301 and LI401.

Drawings PI603 and PI604 only indicate Chart Recorders LI101 and LI103. Please clarify which quantities are correct.

The PI drawings are correct. PE609 will be changed to match.

Document 00 41 00 Bid Schedules

Explanatio n of Bid Items

CLIN001a c

The explanation of this bid item states to include the cabling and duct banks "To/From" the substation.

Does this include the duct bank and cabling to the PIDC and beyond? Also, should SP- 7 and SP-8 be included within this pay item?

PENDING RESPONSE

121 35 20 23 1.2 NA

This specification states that all sediment and dredge spoils are required to be disposed of at a licensed landfill. Will rock excavated from within the basin also be required to be disposed of at a licensed landfill?

Rock from the basin that is removed under the P-381 project is currently permitted to be disposed at an upland landfill.

However, the Contracting Officer is in the process of applying for the necessary permits/authorizations for the rock spoils resulting from the mechanical rock grinding required under P- 381 to be allowed for redistribution within the basin in support of drilled shaft construction. Rock spoils associated with drilled shafts under P-381 will still be disposed of at a licensed solid waste facility.

This requirement will be captured in an amendment for Section 35 20 23.

122 35 20 23 1.16 NA

Where will Dredge and Rock spoils be allowed to be offloaded from a barge to land within PNSY?

Amendment 008 Volume 5 Land Use sheet clarifies that Berth 7B is available for Contractor use upon award.

123 NA NA

YS519,

YS521,

and

YS522

Valve pit platform details are shown on drawings YS519, YS521, and YS522. All grating is indicated to be 19W4 with 1-1/4" x 1/4 bearing bars. On YS521 (elev.

-23.0), Note 5 indicates specific loads grating must be capable of carrying. Loads indicated will require grating to have bearing bars of 2-1/2" X 1/4" according to manufacturer. Confirm grating size should be increased only at elev. -23.0 level.

Grating sizes on YS521 (EL. -23.0) and YS522 (EL. -3.0) are being revised to 2-1/2" x 1/4" by amendment

124 Spec 05 50 13

2.6.4 and 2.7

NA

Spec 05 50 13, paragraph

2.6.4 - Contractor Design, indicates contractor design responsibility, i.e., specifically for handrail. Paragraph 2.7 - Gratings and Frames, we interpret to provide design criteria for grating, but does not identify it as a Contractor responsibility. Please confirm grating has been sized and to be provided as shown on drawings.

All grating is sized appropriately on the drawings Spec will be revised by amendment

125 Spec 05 50 13 2.7 US501

Spec 05 50 13, paragraph 2.7 - Gratings and Frames, indicates ALL grating to be removable.

Typical Detail for grating for utility enclosure shown on C5/US501 shows grating welded down. Please clarify what grating is removable or what is welded in place requiring field touch up painting.

All grating shall be removable. Welds shall be removed by amendment

126 NA Section B2

CD501/B

Scale of section B2 Berth 1 Tunnel Demolition appears to be incorrect. Dimension of 13/16" on the section does not clarify the scale. Please advise.

The dimensions on the detail have been corrected.

The sheet will be revised as an amendment.

127 NA NA CD104

Demolition Keynote 17 is called out once on this sheet pointing to the beginning of a

Insulation removal with ACM from Fresh Water and Compressed Air in sanitary sewer line. The note reads "Remove insulation from fresh water and compressed air piping. For bidding purposes assume ACM is present on Insulation". Should we assume that all fresh water and compressed air lines depicted on this sheet have ACM insulation?

other areas is not anticipated.

128 NA NA CD103

There are three Keynote 3 call outs on CD103. Two to the North on the building and one to a blank area by the crane rails. Please confirm there is no air intake by the crane rails and this keynote callout is incorrect.

The keynote location will be adjusted to reflect the location of an exhaust louver by amendment

129 NA NA YS529

Note 3 states "Reinforcing bars installed in the precast slabs and starter walls that are projecting outside the precast concrete shall be epoxy (green) coated including 12-in into the precast concrete" Please clarify the intent of this note. Does the owner intend for only rebar that is protruding the precast to be epoxy coated, and that only those bars are coated a minimum of 12" into the precast?

Correct. Note that Specification 03 45 33.01, Paragraph 2.2.3 requires this epoxy coating for exposed reinforcement bars that will be submerged for more than one month before being encapsulated by concrete.

130 03 30 00, pg. 4 NA NA

In reference to the Mass Concrete definition in section 033000 page 4, will Crain Rail pile caps and beams located in the Berth 11 Turnout with thickness greater than 4 feet be considered mass concrete?

Yes the concrete crane rail caps and beams shall be consisdered mass concrete.

131 Permits NA NA

After placing the underwater tremie concrete for the new DD1N entrance cofferdam, a treatment system may be required to get the pH to acceptable levels before dewatering. The current permits do not allow discharge of water to the river after it is treated through a treatment system. Who is responsible to apply for and get a NPDES Waste Water Discharge

The Contractor will be responsible for disposal of concrete wash water.

Disposal of treated concrete wash water into the Piscataqua River would need to be approved by the Maine Department of Environmental Protection (MEDEP). It is the Contractor’s responsibility to manage concrete wash water in compliance with

Permit? What should the Contractor assume for permit restrictions in their pricing?

federal and state water quality regulations. It will be the Contractor’s option to obtain a MEDEP Waste Discharge License (WDL)/Maine Pollutant Discharge Elimination System (MEPDES) Permit that allows for the discharging of treated concrete wash water into the Piscataqua River. The Contractor shall be responsible for preparation and submittal of the General Application for the WDL, including the design, installation, and monitoring of required treatment system to ensure concrete wash water meets the WDL conditions and water quality standards for discharge. The Shipyard will require review of the Contractor’s General Application prior to MEDEP submittal. Review time for the WDL is up to 120 days once MEDEP receives a complete application. In the absence of an approved WDL, the Contractor will remain responsible for proper handling and on or off- Shipyard disposal of concrete wash water through adherence to Project specifications or any relevant permit conditions.

This requirement will be captured in an amendment for Section 01 57 19.00 22.

01 35 26.00 22, Pg. 28

3.6.2 e NA

Specification section reads "Under no circumstance must a Contractor make a lift at or above 90 percent of the cranes rated capacity in any configuration." If the contractor has an engineered lift plan can they make picks between 90-100 percent of the

All crane picks are required to meet the EM385 requirements.

crane capacities?

133 03 45 33.01 1.5 NA

The referenced specification requires 3d laser scanning within 1/8" accuracy for the survey of the monolith pre-cast construction for the following: 1. Establish Control

2. Rough Formwork and Embedment placement for each monolith

3. Final Formwork and Embedment placement immediately prior to concrete placement for each monolith

4. After Formwork is removed, and

5. After adjustments or modifications.

Using a 3D laser scan system to this level of precision is likely to pick-up anomalies in the formwork and support structure which will reduce the effectiveness of the survey.

Given the A&C units are bottom slabs which will ultimately be covered with cast-in-place concrete we would propose using a conventional survey system accurate to within 1/4" to survey the reinforcing steel and face of forms as the work progresses similar to the steps listed above. Due to the nature of the B-unit walls being exposed in the final condition we would propose a conventional survey system accurate to within 1/8" to survey the reinforcing and face of forms as the work progresses following the steps listed above. Please confirm whether or not this method of survey is acceptable.

Paragraph 1.5 is being revised to allow conventional surveying for the rough and final surveys of the A, B and C precast units before concrete placement. For the A and C units, the accuracy of the top face of the precast floor slab shall be 1/4". The accuracy of the inside face of the starter walls in the A and C units and the accuracy of the exterior face of the walls in the B units shall be 1/8".

134 NA

23 65 00 - 2.5.1.12

UM601

Reference Sheet No. UM601 regarding Cooling Tower Schedule. Note no. 5 states that the VFD is to be provided by the BAS vendor. Spec 23 65 00 -2.5.1.12 clearly states

Correct, VFDs should be provided by cooling tower vendor. Note will be updated.

that the cooling tower vfd's are to be furnished by the cooling tower manufacturer. Please confirm that Note no. 5 is in error and that the cooling tower vfd's are to be furnished by the cooling tower manufacturer.

135 NA

01 50 00.00 22 - 2.3.1.a

G106

Reference Sheet No. G106 Note 10c and Spec. 01 50

00.00 22 - 2.3.1 regarding temporary dewatering basin elevation. Please confirm the following existing basin elevations at the proposed dewatering pump south sump location: dry dock basin floor EL. -21.50; sump EL. -22.96.

Dry Dock 1 floor is elevation -21.50'. Bottom of dry dock sump ~-37.50'

136 NA

01 50 00.00 22 - 2.3.1

G106

Please confirm that the install and removal of the temporary dewatering pumps will be performed when DD1E is not flooded. After the pumps have been installed, NAVFAC will flood the basin to allow for the 2 hour run test. Prior to temporary dewatering pump removal, NAVFAC will dewater the basin to facilitate pump removal.

Correct temporary pumps will only be installed or removed when the dry dock is dewaterd.

137 NA

01 50 00.00 22 - 2.3.2

G106

Please confirm that the install and removal of the temporary drainage pumps will be performed when DD1E is not flooded. Prior to temporary drainage pump removal, NAVFAC will dewater the basin to facilitate pump removal.

Correct temporary pumps will only be installed or removed when the dry dock is dewaterd.

138 NA

G106;

Appendix F:

Contract No.

N40085- 08-D- 2117, May 2011

Reference sheet no. G106 Note 10h and Appendix F:

Contract No. N40085-08-D- 2117, May 2011 sheet nos.

V201, S202, S519 regarding sealing of discharges from DD1 sumps to existing pump well. Note 10h states that 2 each south sump and 2 each north sump openings are to be sealed which accounts for 2 each existing conduits.

Appendix F cited drawings show 3 each conduits entering the pump well. Please confirm

The requirements to seal the discharges from the DD1 sumps has been removed. Sheet G106 is being replaced in Amendment 8.

that only 2 each north sump openings and 2 each south openings and not 3 each north sump openings and 3 each south openings are to be sealed.

139 NA

G106;

Appendix F:

Contract No.

N40085- 08-D- 2117, May 2011

Reference sheet no. G106 Note 10h and Appendix F:

Contract No. N40085-08-D- 2117, May 2011 sheet nos.

V201, S202, S519 regarding sealing of discharges from DD1 sumps to existing pump well. Please advise if the intent is to fill solid the conduit from the 5' diameter south sump to the 7' diameter north sump. If it is not the intent to do so, please advise if it is acceptable to do so to satisfy the requirement for the sump opening sealings.; please advise as to the predecessor work that must be complete to allow this work to commence.;

please confirm that NAVFAC is to make DD1E dry to facilitate the sump sealing.

The requirements to seal the discharges from the DD1 sumps has been removed. Sheet G106 is being replaced in Amendment 8.

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01 50 00.00 22 - 2.3.1

G106- G113

Reference sheet nos. G107- G113 and Spec. 01 50 00.00 22 - 2.3.1 regarding temporary dewatering emergency dewatering pump. Spec states to provide "an emergency dewatering pump as indicated on the phasing drawings".

Spec also states that "the single pump shall be in place at all times during construction". Spec also states that the emergency dewatering pump is to have 20% more capacity than the other temporary dewatering pumps.

Stated drawings cite 2 temporary emergency dewatering pumps within the DD1 South sump. Please clarify whether a quantity of 2 each emergency dewatering pumps having 20% more capacity than the other temporary dewatering pumps are to be provided at the stated location or a quantity of 1

Spec 01 50 00.00 22 was replaced replaced in amendment 8. All pump number requirements have been redefined each emergency dewatering pump and a quantity of 1 each other temporary dewatering is to be provided at the stated location.

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01 50 00.00 22 - 2.3.1

G106,108, Reference Sheet no. G106 Note No. 10b and sheet nos.

G108,G111 regarding 3 each additional temporary dewatering pumps and piping for vessel evolutions. Please confirm that following the initial installation of same, the Contractor is to remove and store same following vessel move. Contractor is to reinstall, remove and store same again for each subsequent evolutions.

Spec 01 50 00.00 22 was replaced replaced in amendment 8. All pump number requirements have been redefined

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01 50 00.00 22 - 2.3.1

G106- G113

Reference Sheet no. G106 Note No. 10b and Spec. 01 50

00.00 22 - 2.3.1 regarding non emergency temporary dewatering pumps. Spec. 01 50 00.00 22 -2.3.1.b states to provide minimum of 4 each equally sized pumps. Please confirm that these 4 pumps are those shown on Sheet Nos.

G106-G113 as follows: 3 each temporary skid mounted dewatering pumps required for each vessel evolution; 1 each dewatering pump within existing DD1 south sump.

Spec 01 50 00.00 22 was replaced replaced in amendment 8. All pump number requirements have been redefined

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01 50 00.00 22 - 2.3.2

Appendix F:

Contract No.

N62472- 94-C- 2040, Reference Spec. 01 50 00.00 22 - 2.3.21 regarding maintaining the water level below EL. -40.0 in the drainage sump and Appendix No. F Contract No. N62472- 94-C-2040 sheet no. D3. Sheet

no. D3 shows suction pump chamber invert EL. 56.82 which is EL. -39.96 current datum. Temporary drainage pumps are to be installed prior to removal of the existing drainage pumps. To facilitate the install of the temporary drainage pumps, please confirm it is acceptable to make use of the existing suction pump chamber and maintain the water level below

This was revised by Addendum 8. The new elevation to be maintained is now -31.50 feet or 10 feet below the dry dock floor.

- 37.96. The EL. -37.96 maintains a dry basin as the basin floor is EL. -21.50.

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Will a tax-exempt certificate be provided for permanent materials on this project?

Please be advised the Department of the Navy does fill out proffered tax exempt forms nor does it provide a tax exempt number for your use in securing the necessary tax exemptions from your state because only the state revenue office has the legal cognizance and the authority to render an opinion regarding the propriety of such a tax exemption.

145 NA NA NA

Please confirm that a revised schedule is required to be submitted with our Step 2 proposal

Please confirm what “schedule” is referring to.

Amendment

NA NA

Amendment 0007 revised the proposal due date to January 15th. We had previously requested a minimum extension of 4 weeks from the January 5th bid date.

Amendment 0007 revised the proposal due date to January 15th. We had previously requested a minimum extension of 4 weeks from the January 5th bid date. After further reviewing the final drawings issued in Amendment 0006 and re-evaluating our estimate schedule, we still require a minimum extension of another 2 weeks, which would be January 29th. Several factors are driving this request

a. Given the changes in amendment 0006 our Team completed new takeoffs to determine the changes between pre-final and final drawings.

b. Upon evaluation of the FINAL drawings issued, further evaluation of our work sequence, additional takeoff, additional engineering and revisions to our schedule is

Proposal due date will be extended to January 29th.

required prior to the bid.

c. Given the timeframe of the due date, upcoming Holidays will have a big impact on our estimators and our ability to review and compare the estimates.

d. With the uptick in COVID cases we have seen several impacts including team members missing time for illness, team members having to work from home due to quarantines and limited access to our offices. Our ability to compare estimates internally will also be impacted with restrictions on travel and capacity of in person meetings.

e. The above factors also apply to the numerous subcontractors & vendors who are critical to providing the most cost-effective proposal.

This is a very technically challenging project that requires a significant amount of engineering, brainstorming and coordination.

To accommodate this, we request a minimum two extension to ensure we submit the best price and schedule in our step 2 proposal.

Amendment

NA NA

Along with our request for an extension to the proposal due date please consider an extension of the PPI cutoff deadline from December 14th to December 28th

PPIs can be extended to Jan 8th

(End of Summary of Changes)