MACC_PPI_-_Amend_0005.pdf

PPI#

Section of RFP or Page Number

Paragraph Reference Drawing Number Question Response

1 Price Proposal Form N/A 12731031 (S‐104) CLIN 0003‐Option 2 is to replace 9 existing deck mounted lights; however, the details for the new elevated platform show 6 deck mounted lights and 2 wall mounted sconce fixtures. Please advise

The details are correct. There are six deck mounted light fixtures and two column mounted light fixtures, for a total of eight light fixtures, shall be considered in CLIN 0003 ‐ Option 2.

Spec Section 31 00 00 (as an example)

Par 1.6 Please advise if there any state, local or federal permits required to be obtained and paid for by the contractor for any execution of the work of this contract? If so, what are they and if not has the Government obtained any that the Contractor needs to be aware of?

Each task order on this contract will have different permitting requirements. Contactors are required to meet all state, local, and federal laws.

3 31 23 10 Par 3.2 The referenced spec section indicates that soil sampling has been performed by the Government and data will be provided. Please provide this data accordingly.

Appendix A has been provided as a separate document (Amendment 0002.)

Bid Schedule and Price Proposal Form

Price proposal form and Section 00 41 00

Discrepancies exist between the Price Proposal Form and the Bid Schedule of Section 004100. If the Price Proposal Form is precedent and to be used for our proposal we have the following questions.

1. Has CLIN 0001F been eliminated by Amendment #1 or do we carry only the cost of testing in this bid item?

2. What painting is required by CLIN 00007 (Option 6)? Painting is required to be carried in Base Bid Item 0001N and there is nothing differentiating base bid and optional painting.

3. Please quantify the amount of additional crack repair to be carried in CLIN 0009 (Option 8). Is this crack repair in addition to the amounts shown on the drawings?

1. CLIN 0001F has not been eliminated. Cost of testing should not be included in this bid item.

2. Painting for CLIN 0007 is noted in keynote 3 and dashed line (Legend) on Sheet AB104 & Estimated Quantities Sheet AB502.

3. Yes. See Specification section 00 41 00.paragraph 1.1.3

5 Price Proposal Form

Please provide direction on the Unit Prices portion of the form as follows:

1. Are we to carry the cost to replace 3 granite sea blocks in CLIN Item 0001A of our bid?

2. On the Northern Return Concrete Wall Removal is the 15cy to be carried in CLIN Item 00001C?

3. Is the 150LF of crack repair (wall and floor) to be included in CLIN Items 0001H, I, J, K and L of our bid? Also is the 150LF the estimate of the total of the aforementioned bid items?

4. Is the 700CF of concrete slab repair and topping to be carried in CLIN Item 0000L?

1. Yes.

2. Yes.

3. Yes

4. Concrete slab repair is included under CLIN 0001L

6 Section 014500.00 20 Par 1.5.2

Please clarify what the Navy is requiring for the QC specialists. This paragraph indicates that they will have” no other duties”. It also indicates under frequency “Prep meeting for each DFOW Three additional intervals”. This information appears to conflict. Is it the Navy’s intention to have each QC specialist on the site at all times that the respective work is going on or at the frequency indicated, in other words four site visits per area of responsibility.

It's the Government's intent to have each QC specialist on the site for each definable feature of work and at three additional intervals for their area of responsibility.

7 31 50 00 Please clarify purpose of this section with regard to excavation support. The bidding drawings do not show any requirements for excavation support beyond the stacked 3’x3’ concrete blocks depicted on drawing G‐603, Construction Phasing

The contractor is responsible for the design, installation and removal of the excavation support system in accordance with specification section 31 50 00. The detail shown in G‐603 is for schematic purposes only.

8 G‐601 Notes 1 and 2

Notes 1 and 2 indicate that the deconstruction and reconstruction of the seawall is to be performed in 25’ sections and shall be completed before moving on to the next section.

Does that mean the seawall granite, concrete backer wall, excavation and backfill must all be completed in 25’ sections or is the 25’ section requirement limited to the seawall and concrete backer wall? Can all of the excavation be performed in one operation?

It is the Government's intent that the seawall deconstruction and reconstruction be completed in a sequential method to prevent damage to existing structures and the seawall.

The contractor is required to develop a detailed construction sequencing plan demonstrating the deconstruction and reconstruction is planned in a controlled manner.

9 31 3 10

Please provide direction on the following questions regarding soil handing:

1. 3.2 Sampling Materials for Offsite Disposal references that approximately 1200 tons of material requires disposal at Turnkey and that two samples representative of the material were previously collected and submitted for laboratory analysis. Can that data be provided?

2. If additional soil/material testing indicates constituents requiring release notification reporting to the MassDEP ,please confirm that required notifications and associated submittals will be prepared by the Government or their consultant.

3. 3.3 Stockpiling indicates “perform headspace analysis, field testing or other testing” can additional clarification and frequency of testing per incremental yard of material be provided?

4. 3.5 Off Site Transport section indicates that the Government will sign shipping documents please confirm that the Government will sign waste profile paperwork as well.

1. The data from the two samples is included in the Geotechnical Report.

2. Any MassDEP notification will be the Government's responsibility, however they may require coordination from the contractor.

3. The frequency of headspace testing or other testing must meet the requirements of the receiving facility for disposal.

4. The Government will sign waste profile paperwork.

PRE‐PROPOSAL INQUIRY‐ AMENDMENT 0005

Solicitation Number: N40085‐16‐R‐3034

10 31 23 10 1.4

MassDEP RTN 3‐33649 and associated reports apply to the project as well as the GEI Subsurface Explorations Report. Are there any other environmental reports associated with soil or groundwater conditions ( for example Phase I, Phase II , Due Diligence) for the property , if so can they be provided?

See MassDEP website:

http://public.dep.state.ma.us/SearchableSites/Site_Info.aspx?textfield_RTN=3‐ 0033649&searchType=ALL&CurrentPage=1

11 31 23 10 2.2

This paragraph identifies using 55 gallon drums, or equivalent, suitable for storage and transport of OHM. If the LSP determines that other means of storage and hauling of OHM is acceptable, such as approved dumpsters or trucks, will the 55 gallon drum use be waived?

Approval for the change would be required from the Contracting Officer as well.

12 Drawing S‐506 Detail C3 Detail C3 indicates that the fluid applied waterproofing be applied 4”above the window sill returns. Is it also the intent that the fluid applied waterproofing be applied with the same detail along the full length of the existing building at the elevated platform ?

Yes, as depicted in Detail C3 on S‐506, the waterproofing needs to continue up the existing wall along the full length of the building and elevated platform interface.

Price Proposal Unit Prices

1.3 The unit price sheet lists to assume 15cy for Northern Return Concrete Wall Removal.

Does this unit price include the new concrete facing?

No. Refer to Note 1 and detail B3 on sheet SD‐501 and Detail A1 on sheet S‐501.

14 Seawall Plans S501/B3 and A4 The repairs to the option 3 pile cap are shown to occur at the existing mechanical fence.

Are there any additional security requirements when this fence is removed to perform the work?

The existing granite block and fence shall remain in place and be supported during replacement of the pile cap.

15 Building Plans AB101, AB102, and AB502 Sheet AB502 has an estimated quantities schedule. This schedule notes 72 lf new concrete trench, but the plans indicate 45 lf new trench. Which quantity should be assumed for the bid?

Base quantity on the estimated quantity schedule located on AB502.

16 Building Plans AB101, AB102, and AB502

Sheet AB502 has an estimated quantities schedule. This schedule notes 300 linear feet of trench grating, however this does not match the combined total of new trench and existing trench noted for new grating. What quantity of trench grating should be assumed for the bid?

Base quantity on the estimated quantity schedule located on AB502.

17 Price Proposal CLIN 0003 This bid item is for replacement of light fixtures in lieu of salvage and reinstallation. No details or basis of design is provided regarding these fixtures. What are the requirements of basis of design for new fixtures?

The lights shall be replaced in‐kind. Lights shall be appropriate for outdoor use. Voltage, lumen output, CRI, dimensions, style and color shall match existing fixtures. Certification – UL Listed for wet locations. Housing Die‐cast or extruded aluminum. Finish with baked‐on polyester powder coat. Finish shall pass 2500 hour salt spray test per ASTM B117.

18 Building Plan AB502 Detail B4 Detail B4 notes steel lintels in an existing masonry wall at door headers. Are these lintels existing or are they new to be installed under this contract?

Provide lintel at door B03. Remaining lintels are existing.

19 Seawall Plan S505 Detail C4 and S502 Detail D1 For the brick pavers located at the Northern Avenue stair landing does detail C4 on S505 or detail D1 on S502 apply?

The brick pavers will be installed directly on the light weight foam concrete fill with the same setting bed and joint material as detailed in D1 on S‐502.

Price Proposal and Amendment 1

CLIN 001F SD101 per amendment 1 Amendment 1 stated that asbestos containing material determination for the coal vault will be after the award of contract. What is to be assumed for CLIN 0001F Abandoned Coal Vault Asbestos Abatement for the proposal?

Refer to Amendment 1, Specification section 01 11 00 item 106.

21 G601,G602,G603 Can steps 1, 2, and 3 shown on sheet G603 be performed on the entire seawall frontage, with Steps 4 and 5 to be conducted as per the phasing on sheet G601 and G602

It is the Government's intent that the seawall deconstruction and reconstruction be completed in a sequential method to prevent damage to existing structures and the seawall.

The contractor is required to develop a detailed construction sequencing plan demonstrating the deconstruction and reconstruction is planned in a controlled manner.

22 05 52 00 Seawall 3.2.1 Seawall S502/A4 Specification 05 52 00 paragraph 3.2.1 calls for handrail posts to be on 4’‐0” centers while detail A4 on S502 shows an 8’‐0” spacing. Does the specification or the plan govern?

Detail A4 on S‐502 is for the Guardrail. Handrail posts shall be no more than 4‐feet on center.

Refer to detail C4 on S‐504 for the handrail detail.

23 01 50 00 3.4.2 Can the contractor field offices be located within the basement scope of work area? No

24 01 57 19.00 22 3.3

Paragraph 3.3 of section 01 57 19.00 22 states that an archaeologist is to be provided if archaeological remains are discovered. Given that the seawall is backfilled with local materials and is near downtown Boston, will an archaeologist be required during the excavation behind the seawall?

If anything that is of archaeological significance is encountered during excavation behind the wall all work shall be stopped and an archaeologist shall be consulted. An archaeologist is not required to be onsite during all excavation operations.

25 01 50 00 How is access to the basement to be coordinated for material delivery and labor utilizing the doors facing the seawall or access facing Atlantic Avenue?

Contact the Contracting Officer 5 days prior to delivery to allow for coordination with the

GSA.

26 01 14 00.00 22 1.5 Given that much of the work on this project will need to be performed near the hours of low tide, will there be flexibility to perform work outside the listed hours of 7AM to 5PM on a regular basis?

Work associated with the seawall will be permitted outside of normal hours provided that noise levels do not exceed city ordinance requirements. The GSA will provide guard service for interior access off hours. Coordinate off hours work with the Contracting Officer a minimum of 5 days prior to allow GSA time to organize security personnel.

02 82 16 Part 1 and Appendix‐Hazardous Building Materials Assessment and Survey

AB101

The hazardous materials report Smith and Wessel section page 6 states with regard to the expansion joint: ‘Significant demolition of the concrete slab would be necessary in order to access and abate this material. Further it is likely that the concrete pieces associated with this mastic would need to all be disposed of as asbestos waste’. The revised section 02 82 16 Part 1 calls for removal of this expansion joint. Plan sheet AB101 does not show this concrete removal and reinstallation. Is the expansion joint and associated concrete to be removed and the concrete patched, or is it to be removed?

Coordinate work indicated on drawings with Hazardous Materials Report. Amended Specification Section 02 82 16 corresponds to the suspected ACM within the abandoned coal vault area.

28 Price Proposal Form CLIN 0009 What is the quantity of Additional Crack Repairs to be assumed for CLIN 0009 on the price proposal form, given that noted crack repairs are included in CLIN0001H through

CLIN0001L?

See Specification section 00 41 00 paragraph 1.1.3. This is for additional work beyond noted items.

29 31 23 10 Paragraph 1.6, 2.2, and 3.3

Section 31 23 10 states to assume that 750 cubic yards of soil will be transported to a disposal facility. This specification in paragraphs 1.6 and 3.3 call for the use of truck liners and imply that the soil can be removed by bulk transport. Paragraph 2.2 calls for the use of 55 gallon drums for OHM materials. How much of the 750 cubic yards of soil should be assume to be OHM material requiring the use of 55 gallon drums?

Paragraph 2.2 notes the product requirements for storage materials. The method of transportation is not defined in the specifications.

Amendment 0001 – RE: Extension

Offeror respectfully requests a two‐week extension from the March 1st deadline to provide adequate time to contact subcontractors and procure the most competitive offer for NAVFAC.

No extension will be provided.

31 Contract Plans Step 5 & 6 G‐603 Step 5 shows 3’x3’ concrete blocks and backfill against the building. Step 6 shows geofoam in same area. Are the concrete blocks and backfill to be removed prior to installation of the geofoam?

The contractor is responsible for the design, installation and removal of the excavation support system in accordance with specification section 31 50 00. The detail shown in G‐603 is for schematic purposes only.

Solicitation – Price Proposal Form and Technical Specifications Section 00 41 00 Bid Schedule

Which pricing form is to be submitted with the proposal?

Utilize the Williams Building and Seawall Repair Price Proposal form (provided as a separate adobe file with the initial solicitation package).

33 Contract Plans SD‐101 It appears that there is a section of seawall returning to the west on the south side of the existing tide station. Is that section of seawall to be reconstructed as well? If so, please provide details.

Yes, reconstruction of seawall is similar to other areas.

34 Contract Plans SD‐101, S‐503

Please provide sections depicting how the existing Northern Stair platform/deck ties into Northern Avenue at the south end of the project. (Blue section perpendicular to stairs at interface with Northern Ave. on Detail C1, S‐503)

The Northern Ave. stairs are structurally independent from the Northern Ave. abutment.

35 S‐502, Detail C4 Since existing Please provide a specification and reference manufacturer for drain spouts.

Refer to Specification Section 32 16 15 paragraph 2.1.8 for requirements of deck drains/spouts.

36 S‐502, Detail D1 Please provide a specification and reference manufacturer for cast iron deck drains. Refer to Specification Section 32 16 15 paragraph 2.1.8

37 AB‐102 Keynote 6: How thick is the housekeeping pad? Is it reinforced? See legend on AB‐103 and detail B1 on AB‐502

38 RFP Instructions Is 8‐point font acceptable for graphics and tables? No

SEAWALL

SPECIFICATIONS

Is a Seawall specification missing for Light gage metal framing & glass mat gypsum sheathing?

No. There is no light gage metal framing or glass mat gypsum sheathing in the seawall.

40 North Stair drawing detail C1/S‐503 Is there a concrete slab under the brick pavers or are they setting on the light weight foam concrete fill?

No concrete slab is required on top of the light weight foam concrete fill, the brick pavers will be installed directly on the light weight foam concrete fill with the same setting bed and joint material as detailed in D1 on S‐502.

41 Drawing MB‐102 What is the floor to floor height ( partially shown as 1‐4’ ), Note 12 ? Floor to floor height is approximately 14'.

42 Drawings AB‐101, AB‐102, AB‐103

Nearly all trenches in the lower basement were labeled #18 on AB‐101 except trench near the Electrical Vault.

Note 4 on AB‐102 provides for FRP where there is slab patch.

Is the balance of the trench cover near the Electrical Vault to remain or is it to be FRP?

Provide FRP grating to edge of concrete topping slab. Existing grating to remain from that point on.

Legend AB‐102, AB‐103 : Cut out existing slab and prepare surface for concrete. See detail B2/AB‐502

1. The detail shows a min. topping thickness of 2”.

2. Drawing AB‐103 shows the high point at the center of the room. It is 18’ to 19’ to the trench drain or at a 1/8” pitch is 2 ¼” to 2 3/8” above the trench drain.

3. Drawing AB‐102 shows the concrete cut 4’ from the trench drain. The topping at the point would only be ½”.

It appears that the concrete cut should start 4’ from the center or high point all the way to the trench drain to give the 2” min. Is this correct?

The design intent is to cut the floor back a minimum of four feet from the edge of the trench to meet the minimum 2" topping slab requirement and coordinate with Detail B2 on A‐502.

44 Drawing AB‐103 & AB‐502

1. Typical door undercuts are ¾”. Drawing AB‐103 has 4 door openings or 6 doors that will swing into the topping slab.

2. Door B06 is 9’ from the trench. Topping slab thickness at that point is 1 1/8”. Door B04 is 8.8’ from the trench or about 1 1/8” topping.

Do you want larger undercuts or do you want a curb at those doors?

Door B103 opening is being increased and no additional undercut should be required. At Door B004 there is a small lip form Coal Bunker Chiller Tank Room to the adjacent Lower Basement level that will allow for the new slab to be installed flush to the existing Coal Bunker Chiller Tank Room floor, without requiring additional door undercut. Door B105 and Door B106 are raised above the existing floor and should not require an additional door undercut.

Drawing MB‐102, Note 2 Provide floor drain. Connect to existing sanitary piping within slab.

Where is the sanitary connection, by the DP pumps?

Are we to remove concrete & patch back? Connect the floor drain to the existing piping at the removed floor drain (Refer to MB‐101).

Drawing MB‐102, Note 10 Connect alarm point from duplex pump controller to existing alarm wiring to first floor telephone room.

Where on the plan is the telephone room?

Can we get the First Floor Plan for reference? Connect to existing wiring adjacent to sump.

47 Ref: Drawing SD‐102, S‐102 & S‐501

Repair Northern Return Concrete Wall Pile Cap ‐ includes the removal of deteriorated concrete, installation of steel reinforcement and placement of new concrete pile cap(extend cap B3 & A4/S‐501) Does this work include remove and reinstall fence & granite?

No. The existing granite block and fence shall remain in place and be supported during replacement of the pile cap.

Drawing SD‐101, Note 1, Provide temporary access to the site when stairs are removed.

Whose access ( contractors / A/E? ) to where?

Access shall be limited to personnel involved in the project (Contractor, GSA, NAVFAC, Designer of Record, etc)

49 V101‐ Are the piles holding the steel barge floats filled with concrete? No.

50 V101‐ Can the re‐installation of these piles be done with a vibratory hammer, or will an impact hammer be required?

The means and methods of re‐installing the float spud piles is the contractors responsibility

51 V101‐ What are the re‐installation requirements for these piles?

The piles are required to be re‐installed at the same locations to the same depth that they are removed from.

52 V 301; A1& A3‐ Is the existing backer wall anchored into the existing granite blocks of the wall?

Details of the concrete backer wall and granite block connection are not available due to the vintage of the structure. Assume that the two are structurally tied together.

53 V 301; A1& A3‐ Does the existing concrete backer wall have rebar in it?

Details of the concrete backer wall are not available due to the vintage of the structure.

Assume that the backerwall contains reinforcing.

54 G102‐ What is being dewatered from the seawall site/excavation? Drawing G102 shows dewater setup on barge

Refer to Specification Section 31 00 00 paragraph 3.3.2 and Excavation Note 4 on G‐003.

55 G102‐ Want plan to have (2) 120x40 +/‐ barges on site with tug and skiff/floats, what space is available?

Contractor shall coordinate with the USCG and Harbor Patrol for space restrictions in the Fort Point Channel.

56 G602; C3‐ Will there be direct overhead access at the location of the steel sheet wall to be removed?

No.

57 G601‐ Does the excavation of material and removal of the concrete backer wall have to be done in 25LF sections, or can the entire area behind seawall be excavated/backer wall removed at once?

It is the Government's intent that the seawall deconstruction and reconstruction be completed in a sequential method to prevent damage to existing structures and the seawall.

The contractor is required to develop a detailed construction sequencing plan demonstrating the deconstruction and reconstruction is planned in a controlled manner.

58 G602; C3‐ Is the existing steel sheeting to be removed anchored into to concrete wall? No.

59 S201‐ Do you anticipate the need to cut/notch each granite block to accommodate the 2” PVC drain pipe? Or space blocks to accommodate without cutting/notching?

We anticipate the spacing of the granite blocks to accommodate the underdrain.

60 SITE

How often are the boats tied up next to site moving in and out of area? What impact to project site?

Boats move in and out on a daily basis. No impact to the project site.

61 SITE

During the walkthrough it was noted there is a cluster of unused timber piles approximately 120’ ‐130’ off the granite seawall, just to the North of the fixed portion of the “old North Ave Bridge”. These could impact the placement of the working barge. Can these piles be removed to accommodate barge access?

No

62 SITE

Is the only access for concrete trucks, pump trucks, etc. through the contractor laydown yard?

Yes. Coordination with contracting officer prior to concrete placement will be required partial access to the parking area might be available.

63 Site‐ The granite block directly under each of the 3 bollards is cracked, presumably into 2 pieces. Are these cracked granite blocks the 3 for replacement in Item 202? If so, are the new blocks to match shape and footprint of existing?

No. The granite blocks that are under the 3 bollards are not identified as non‐salvageable and should be re‐installed.

64 A/E‐ How are the joints of the newly stacked granite to be grouted, troweled grout before block placed or pumped after block placed?

The contractor shall provide a means that ensures the joints of the reset blocks are fully bedded in accordance with Specification Section 35 00 00.

65 A/E‐ Are the precast 3’x3’ blocks temporary for undermining and to be removed before back filling?

Contractor shall design, install and remove excavation support in accordance with Specification Section 31 50 00.

66 G‐101, G‐102, S102, S‐202 and S‐303

The vault area for slab pour and Lt. Wt. Foam Concrete Fill in the section of vault that remains is a min. of 135’ from our access point and 35 ‘ around the corner.

From the walkway area by Atlantic Ave down the property line to the vault fill area is 158’ and 180’ to the corner of the building for the slab.

Is there a possible Contractor’s area on the Atlantic Ave. side?

Is there any access from the property to the north?

No laydown available on Atlantic Ave or on the north side of the property. During construction a placement plan that uses additional areas not shown as laydown can be proposed however it is not guaranteed that it will be available.

67 N/A N/A N/A Are street lane closures for deliveries permitted on Atlantic Avenue?

Contact shall be made through the Contracting Officer and GSA to coordinate road outages that are required.

68 N/A N/A N/A What is the point of contact @ the City of Boston for Atlantic Ave. lane closures and sidewalk hatchway access?

Contact shall be made through the Contracting Officer and GSA to coordinate road outages that are required.

69 N/A N/A A3/AB‐502 Is a frame required with the FRP grate replacements? No.

70 N/A N/A A4/AB‐502 Does existing trench have an existing frame? No.

71 N/A N/A AB‐101, Note #5 It appears from the site visit that there are fewer plywood platforms than shown on AB101, please confirm

The intent is to removal platforms. Platforms may have been relocated however the overall number will remain the same.

72 N/A N/A AB‐101 and AB‐102 The slab topping limits at the south side of the basement appear to differ between drawings AB‐101 and AB‐102, please clarify.

Concrete topping slab limits are indicated on AB‐103. Provide concrete floor prep from edge of the existing floor cut‐out at the southern trench to the south to match AB‐103.

From the solicitation it appears that proposals are to be mailed or hand‐carried to the Norfolk, VA address. As the MACC is based at PNSY Kittery, ME would the Navy allow proposals to be submitted to the PNSY Public Works bid deposit location considering most of the contractors are located in the Northeast?

No, per the solicitation bids need to be mailed or hand‐carried to the address provided in Norfolk, VA.

74 03 31 29

1.7.1.1 – “Northern Ave. Concrete Stairs”

S‐104, A3/S‐506

Please clarify the intent and scope of the design by a licensed professional engineer for the stair fabrication drawings and structural analysis required by this specification section. From the contract drawings S‐104, A3/S‐506 it appears these stairs are fully designed. Based on the contract drawings there would be sufficient information for a steel detailer to prepare the fabrication drawings, all structural members are sized on the contract drawings.

The stairs depicted on S‐104 and detail A3 on S‐506 are the elevated platform stairs and not the Northern Ave. Concrete Stairs. Refer to Specification Section 03 48 00 for the requirements of the precast concrete stair treads depicted in detail A3 on S‐506. Refer to S‐ 503 and Specification Section 03 31 29 paragraph 1.7.1.1 for the requirements of the Northern Ave. Concrete Stairs.

75 03 31 29

1.6.1 – “Concrete Mix Design

N/A

This paragraph indicates that the Marine Concrete mix design is required to be submitted 120 days prior to use in concrete placement. It is unclear as to the purpose of this extremely long lead time for this information and the lead time will have a substantial effect on the project schedule. Please consider reducing this lead time to a more reasonable duration such as 30 days.

Due to the specialty requirements of the concrete mix design, it is anticipated that several reviews of the submission may be required. The intent of the long lead time is to allow this review and revisions process without impacting construction schedule.

03 30 50 (Misc. Cast‐ in‐Place Concrete) 03 31 29 (Marine Concrete)

N/A N/A Which specification applies for use at the stairs and platform cast‐in‐place concrete?

The Seawall Technical Specifications, specification section 03 31 29 applies to the cast‐in‐ place concrete for the stairs and platform and specification section 03 48 00 applies to the precast concrete stair treads for the elevated platform.

77 01 35 26.00 22 1.7.1.2 N/A

This paragraph states that the Quality Control Manager cannot be the SSHO. If the superintendent possesses the qualifications required by EM 3185‐1‐1 Section 1 can the superintendent act as the SSHO? This specification does not state that the SSHO will have no other duties.

No

78 N/A N/A See question

The north end of the site is bounded by an adjoining deck area, timber fence and timber ramp, Seawall Plan‐2/SD‐102. The floating dock continues from the GSA site across to the adjoining property, Deck Plan‐2/V‐102. The floating dock that is to be removed and extent of waterfront access, G‐101 does not permit access to the sheetpile and seawall area along the adjacent property. Please clarify how access will be gained to perform the work at the seawall return , A3/SD‐202.

Work is required to be completed below the adjacent deck and/or accessing from GSA property.

79 N/A N/A Seawall notes #7 and #8/G‐004 Please clarify that the joint grouting (Seawall notes #7 and #8/G‐004) applies to all undisturbed and new joints in the granite blocks only and that any joints in the concrete below the lowest granite block are not re‐grouted.

All joints shall be grouted in accordance with notes #7 and #8 on G‐004 and Specification Section 35 00 00.

80 N/A N/A N/A For basis of bid please confirm that we should assume the existing concrete backer wall is reinforced but not tied to the existing granite blocks

Details of the concrete backer wall and granite block connection are not available due to the vintage of the structure. Assume that the two are structurally tied together.

81 N/A N/A N/A With questions due on 2/17 and the current bid date 3/1, please consider extending the bid date minimally one week after questions are answered.

No extension will be provided.

82 100 Factor 3, Management Approach and Schedule Factor 3 requires the submission of a proposed project schedule. The Price Proposal Form includes Option CLIN’s 003 – 009. Are these Option CLIN’s to be included in the proposal schedule?

Yes, all options are required to be in the schedule.

83 800 Price Proposal Form

Contract Line Item Notes, note b states that the Government has 365 days after contract award to award CLIN’s 0002 – 0009. However in order to meet the project schedule if the Government intends to have the Contractor remove the floating dock system the award of CLIN 0002 must be awarded to allow the floating dock to be removed starting on 5 July 2017 as stated in the CLIN 002 description. Please clarify

CLIN 002 would be awarded at the beginning of the project, if it is exercised.

84 N/A N/A AB102

The symbol for an existing trench appears to be a dashed line except for the trench to the left side of the drawing and in the bottom right corner. Please clarify if those trenches are existing or planned.

Provide new trenches as indicated by keynote 1.

85 09 90 00, pg. 7 1.10.2F N/A This paragraph excludes original uncoated historic surfaces. Please identify the locations of “original” and “historic”, or clarify the statement.

Paint walls as indicated on drawings. There are no "original historic uncoated surfaces " that are scheduled to remain.

86 AB‐501 Detail D1 This detail requests demolition of the CMU / Plaster Wall. Support shoring of the area as well. Please provide floor to ceiling height of the area for the temp shoring.

See keynote 7 Drawing AB‐102 (approximately 12').

SECTION 01 32 17.00

25‐ Page 1

SECTION 01 45 00.00

20 Page 3

1.1

1.4 Please advise if the scope of Commissioning / Enhanced Commissioning, if commissioning is included in this contract?

There is no commissioning included within contract.

SECTION 01 50 00.00

22 Page 5

3.3

Conduct operations in a manner that will not close any thoroughfare or interfere in any way with waterborne or land based traffic. Provide the Contracting Officer a Traffic Control Plan detailing the proposed controls to re‐route pedestrian traffic around the project site for approval. Please advise a local Police Officer is also required during land based activities?

Refer to note 3 on SD‐101, the walkway behind the seawall will be closed during construction. All requirements and restrictions for conducting work outside of the Government property shall be coordinated with the USCG, City of Boston and other appropriate entities.

89 Sheet S304 detail A3 As part of the HAZMAT Abatement Scope at the Coal Vault. Is there an access to the Vault? If not are we to cut an access opening to install the Waterproofing, Flowable Fill, Demolish the HAZMAT Material?

The abandoned coal vault will be accessed through the construction sequencing. Refer to Detail B4 on SD‐102.

90 G601, G602 These drawings depict a sequence of seawall deconstruction and reconstruction of the seawall. Is it the governments intent that the concrete backer wall be handled in the same sequence, which will require 8 separate concrete pours?

It is the Government's intent that the seawall deconstruction and reconstruction be completed in a sequential method to prevent damage to existing structures and the seawall.

The contractor is required to develop a detailed construction sequencing plan demonstrating the deconstruction and reconstruction is planned in a controlled manner.

91 SD102

This drawing depicts the coal vault and the requirement for removal of concrete support beams, structural ceiling and concrete deck above that. Does the government anticipate that asbestos removal will only take place after the top is removed?

Yes. Refer to Amendment 1.

92 SD 102

This drawing depicts removal of the coal vault walls as well and as support beams and top. But no other contract document contains information regarding this extent of demolition except for mentioning of asbestos testing after the top has been removed (Amendment 1 Asbestos Abatement specification). Does this project include the total demolition of the coal vault?

No. Only to the extents indicated in the drawings.

93 MB‐501

There is a concern from the manufactures representative for the DP‐1&2 pumps (Hydromatic Model 40MPSF) that the specified motor 3hp motor will overload and are recommending a 5hp motor. The FLA for the 3HP motor is 11 and for the 5HP is 17.5.

Please advise.

The pumps are a replacement of the existing 3hp pumps (with superior materials) that have functioned without issue since installation.

01 41 00 Bid Schedules Page 1 thru 4

Please advise what Bid Form should our proposal price be based on. The Excel Form or Specification Section 01 41 00?

Utilize the Williams Building and Seawall Repair Price Proposal form (provided as a separate adobe file with the initial solicitation package).

Is there a weight restriction during the Micro‐Piles installation. Equipment 4’ x 12’ long may weight as much as 15,000 lbs.

Yes. In accordance with 02 41 00 paragraph 1.8.1, the Contractor is required to submit calculations stamped by a professional engineer demonstrating that the contractors operations will not over load or damage existing structures.

96 01 14 00.00 22

1.4.5 and Attachment A

It is understood that the use of GSA Form 1755 is required for permitted hot work and that the requirements of EM 385‐1‐1 must be followed. Please confirm that City of Boston and/or Boston Fire Department hot work permitting and fire watch protocol do not apply to this project.

City of Boston and/or Boston Fire Department will not be issuing hot work permits for this project.

Please confirm that this project is exempt from City of Boston and/or State of Massachusetts building, electrical, plumbing and/or other construction permitting and inspection.

This project is exempt from City of Boston/Stat of Massachusetts building, electrical, plumbing and/or other construction permitting and inspections.

98 G‐003, Environmental Control Noe 3. Please identify and furnish a copy of the referenced permit.

An ACOE self verification notification form has been submitted no other permits are required through the state.

99 G‐101, Notes 2 & 3

Please clarify the extent of “security measures” that are to be furnished by the contractor. Is the contractor solely responsible for coordinating with the Govt. to facilitate Govt. supplied security personnel or is the contractor responsible for furnishing contractor paid security personnel? If contractor paid security personnel are required, what at the associated requirements?

The GSA will provide guard service. Contractor to coordinate off hours work with the Contracting Officer a minimum of 5 days prior to allow GSA time to get security personnel.

Security personnel are only required for interior work off hours.

Due to the complexity of this project, we request that the proposal due date be extended by 2‐weeks to allow for the preparation of a comprehensive and cost efficient estimate.

No extension will be provided.

Please see attached map and confirm that the Bid Items which require breakout pricing are identified correctly in blue, that the drawing’s scale has been properly calibrated and corrected from what it is identified as, and lastly please advise location and fixture type for Option #2 pricing.

Items appear to be listed correctly. Drawings were prepared as 22x34 full size drawings and scale is correct. If reviewing at a 11x17 (half‐size) than the drawing should be scaled appropriately. For option #2 refer to Detail A1 on S‐104.

102 N/A N/A 12731031 (S‐104) Please provide specification for the light fixture replacement associated with CLIN 0003‐ Option 2

The lights shall be replaced in‐kind. Lights shall be appropriate for outdoor use. Voltage, lumen output, CRI, dimensions, style and color shall match existing fixtures. Certification – UL Listed for wet locations. Housing Die‐cast or extruded aluminum. Finish with baked‐on polyester powder coat. Finish shall pass 2500 hour salt spray test per ASTM B117.