Amendment 09 5.2.25.pdf

70Z05025R43000001

SOLICITATION NO. 70Z05025R43000001 IS AMENDED AS FOLLOWS:

Enclosed documents:

1. Debris Survey Technical Memo_PPI 197

2. Drawing AB200 Markup_for PPI 110

3. Drawing CN101-CN102 Markups_Revised Dredge Placement Areas

4. Insertion to 01 57 19- Temporary Environmental Controls_PPI 208

5. Pier 36 Rebuild_2003_PPI 222

6. Record Drawings_S50_S51_PPI 64

7. WQMP Excerpt_PPI 12

Task Order Announcement

NA

RFP, Drawings Sheet AB200 (Boathouse Exterior Elevations):

• INSERT: Notes 1 through 9 detailing specifications for translucent wall panels (per PPI 110).

Sheet AD401

• DELETE Sheet AD401 note P3: Remove existing air compressor and prep for relocation in new boathouse. See plumbing new work plan.

• INSERT Sheet AD401 note P3: Existing air compressor to be demolished in full

Sheet CD106 (Civil Demolition Plan):

• REMOVE: Existing designations for relocation of multi-purpose facility, shower trailers, and armory (per PPI 117 - implied removal, not relocation).

• INSERT: Clear designation of items for removal (off-site) vs. relocation (on-site).

Specific on-site relocation locations to be determined later by the USCG. (per PPI 52) Sheet CD107 (Civil Demolition Plan):

• REMOVE: Indication of water and sewer line removal (per PPI 159).

Sheet CD108 (Civil Demolition Plan):

• REMOVE: Indication of new water and sanitary lines and existing eco-block barrier location (per PPI 159 and PPI 47).

• INSERT: Clarification that existing water and sanitary lines are to be removed (per PPI 159).

• INSERT Drawing CD108 note: Existing Eco Block vehicle barriers shall be moved from current location to existing TWIC terminal fence that separates Port of Seattle Terminal 46 and USCG Base Seattle. Exact Eco Block layout (offset from fence, spacing, etc.) to be directed by USCG Contracting Officer or their designated representative.

Sheet CD103 (Utilities Demolition Plan):

• INSERT: Clear line of demarcation on the knee wall, extending demolition approximately 30 feet south of the corner shown in the image provided in the PPI response. (per PPI 39)

Sheets CD108 and CD109 (Civil Demolition Plan):

• INSERT: Fencing details; see images and text of the PPI # 46 answer for detail. (per PPI 46)

• REMOVE CD108 and CD109 Demolition Note 3: Eco block vehicle barriers to be moved from lease line fence to perimeter area directed by Port.

• INSERT CD108 and CD109 Demolition Note 3: Existing Eco Block vehicle barriers shall be moved from current location to existing TWIC terminal fence that separates Port of Seattle Terminal 46 and USCG Base Seattle. Exact Eco Block layout (offset from fence, spacing, etc.) to be directed by USCG Contracting Officer or their designated representative.

Sheet CU102:

• INSERT: Clarification on new storm drain line, showing starting and ending points.

Details provided on CU501 (per PPI 160).

Sheet E-504:

• REMOVE: 6-gang power mound detail (per PPI 69).

• INSERT: 5-gang power mound detail (per PPI 69).

Sheet E-505 (Detail A2):

• REMOVE: Callout for Type "G" cable and contractor sizing of loop (per PPI 60).

• INSERT: Callout for (2) 4#2, 1#4 GND, type "SOOW" cable with 25' cable length (per

PPI 60).

• INSERT: Reference to Panel FB (per PPI 144).

• REMOVE Drawing E505 Detail D2 Note as follows: Type “G” cable, south wire or equal. Contractor to size the loop of type “G” cable to cover the low and high tide conditions.

• INSERT Drawing E505 Detail D2 Note as follows: (2) 4#2, 1#4 GND, type “SOOW” cable. Contractor shall provide 25’ cable length to accommodate low and high tide conditions.

Sheet E-508 (Detail A4):

• REMOVE: 100A circuit breaker designation (per PPI 67).

• INSERT: 125A circuit breaker designation (per PPI 67).

Sheet E-601:

• INSERT: PM-36A (8 gang power mound) denoted as relocated (per PPI 77).

• REMOVE Drawing E601 Note 1: “Screened and dashed linetype indicates existing equipment to remain, unless otherwise noted. New work shown in continuous, heavy linetype.”

• INSERT Drawing E601 Note 1: Screened and dashed linetype indicates existing equipment to remain, unless otherwise noted. New work shown in heavy linetype.”

Switchgear 2, Section 10 to show 900A Fuse. Switchgear 2, Section 8 to show 600A Fuse, screened as existing.

Sheet E-602:

• INSERT: Dashed line around equipment for Power Pedestal 4, indicating inclusion in the same enclosure (per PPI 67).

Sheet E-603/E-604:

• INSERT: Sheet E-603 a KWH meter symbol will be added to the single line diagram on the primary side of the transformer on detail A5. (per PPI 72).

• INSERT: Fused interrupter switch for each secondary unit substation transformer (per

PPI 73).

• INSERT: Note 7 indicating fixed mounted circuit breakers (per PPI 224).

Sheets E-603 & E-604:

• REMOVE: "Screened and dashed linetype indicates existing equipment to remain, unless otherwise noted. New work shown in continuous, heavy linetype.”

• INSERT: "Screened and dashed linetype indicates existing equipment to remain, unless otherwise noted. New work shown in heavy linetype.” (per PPI 75)

• INSERT: A KWH meter symbol will be added to the single line diagram on the primary side of the transformer on detail A5 (per PPI 72).

Sheet E-603

• INSERT: 6#12 wires will be provided for each receptacle, a 10-Gang will have 60#12 total, & a 5-Gang will have 30#12 total.

o All control wires will be in the spare 4" conduit (SP4) that is in the same routing as the 400A, 450V under wharf conduits that feed the power mound receptacles.

Sheets ES101 and ES104

• INSERT: Feeder callouts for number of 6#12 control conductors will be provided on detail A5 of the site plan.

Sheet ES400

• INSERT: Feeder callouts for the 6#12 conductors will be provided on details A1, A5, D1, D7. These will be provided in the forthcoming “Issued for Construction Set.”

Sheet E-503

• INSERT: Feeder callouts for the 6#12 conductors will be provided on details A1, D1, F7. These will be provided in the forthcoming “Issued for Construction Set.”

Sheet E-601

• INSERT: Power mound 36A will be revised to show power mound controls, similar to the power mounds on sheets E-603 & E-604. These will be provided in the forthcoming “Issued for Construction Set.”

Sheet E-609

• INSERT: Feeder ID “PMX1” & "PMX2" will be added to Feeder Schedule on detail A5.

These will be provided in the forthcoming “Issued for Construction Set.”

Sheet ES101:

• INSERT: On sheet E-506, NEMA rating for new the receptacles will be included on

Detail A1, and A6 on sheet E-508. The 60A receptacle will have a NEMA rating/configuration of 14-60R. The 20A receptacle will have a NEMA rating/configuration of 5-20R. The 30A receptacle will be identified as NEMA rating/configuration of 10-30R. A general note will be added for the Contractor to match existing NEMA rating/configuration, to be verified in the field. (per PPI 66).

• INSERT: Feeder callouts for power mound receptacle light indicators (per PPI 70).

Sheet PB100:

• REMOVE: Implication that air compressor is relocated existing unit (per PPI 97).

• INSERT: Clarification that air compressor is new (per PPI 97).

Sheet SD03:

• INSERT: In SD-03 Product Data: "Line Insulation Monitor; G"

Sheet SC125 (Bulkhead Wall Plan and Elevation):

• REMOVE: Test piles within the combi-wall (per PPI 41, 134).

• INSERT: Acceptable test pile locations south of the combi-wall alignment (per PPI 41, 134).

Sheet SC125 (General Sheet Notes):

• REMOVE SC125 General Note 2: All the test piles indicated in the site plan and elevation view in this sheet, as well as the bulkhead wall indicator piles shall be installed prior to installation of shorter bulkhead piles.

• INSERT SC125 General Note 2: All the test piles indicated in the site plan and elevation view in this sheet, as well as the bulkhead wall indicator piles shall be installed prior to installation of shorter bulkhead piles. The proposed test and indicator piles can be installed as non-production sacrificial piles south of the bulkhead combi-wall alignment.

The test and indicator piles shall be located to have no conflict with all existing utilities or structures. If there are any conflicts with existing utilities or structures, the Contractor shall obtain a revised position from the Contracting Officer. Upon completion of the PDA testing and approval of the Contracting Officer, the full length of all the sacrificial test and indicator piles shall be extracted from the ground. These sacrificial test and indicator piles are in addition to the original bulkhead wall piles. If test piles are installed in non-production pile locations, the Contractor will be responsible for additional costs associated with completing this work.

Data obtained from the Test Pile Program is intended to be used on future phases of the project.

• INSERT SC125 Note 5: Add the following to the existing note: The sheet pile shall be installed to the tip elevation shown in the Contract Plans. Vibratory pile driving of the sheet piles to tip elevation with no impact driving is acceptable if design tip elevations are reached.

Sheet SC126 (Notes):

• INSERT: In the Notes of Sheet SC126: “All the underwater toe wall production piles shall be driven to the tip and cutoff elevations in the drawings.” (per PPI 137).

Sheet SC222:

• INSERT: Clarification that concrete barrier details are an option for barriers without fencing (per PPI 162).

Sheet SC321 (Detail A4):

• INSERT: Location drawing reference for Detail A4 (per PPI 161).

Sheet SC322:

• INSERT: Clarification of material under concrete plug (native material, top 5ft minimum concrete) (per PPI 156).

Sheet SC520 (Detail E8):

• INSERT: Length of pipe pile interlock connection (approx. 1.28 inches) (per PPI 140).

Sheet SD110 (Demolition Drawing):

• INSERT: Reference drawings for all structures within project work limits, including boat haul-out at Pier 36A (provided in Amendment 03) (per PPI 211).

Sheet SD142 (Floating Dock Structural Demolition Plan):

• REMOVE: Incorrect cross-reference to Sheets TW106-TW112 (per PPI 44).

• INSERT: Correct cross-reference to Sheets CU441, CU442, FM441, EP141, EP142, EP541, and EP641 (per PPI 44).

Sheet SD412:

• INSERT: Vertical dimension for fender length (22.42 feet) (per PPI 114).

Sheet SS150 (Section F1 - Gangway Plan & Elevation View C1):

• REMOVE: Conflicting dimensions for gangway length (78 feet and 80 feet).

• INSERT: Consistent dimension for gangway length (80 feet) (per PPI 43).

Sheet T-101:

• REMOVE: Reference to (4) 4" telecom conduits (per PPI 59).

• INSERT: Conduit runs matching ES101 and ES102, with "COM4" tag changed to "SP4"

(per PPI 59).

Sheet TW100:

• REMOVE: Matchlines referencing drawings TW106-TW112 (per PPI 143).

SPECIFICATIONS

Specification 01 14 00 (Work Restrictions):

• INSERT: Paragraph 1.4.1.2 for base access requirements, specifying RapidGate for contractor access (per PPI 49).

• REMOVE: Original period of performance.

• INSERT: Revised period of performance of 1,320 calendar days (per PPI 50).

• INSERT: Clarification that excavations below HAT in upland areas are not restricted to the in-water work window (per PPI 80).

• INSERT: Confirmation that dredging may occur 24/7 with prior approval (per PPI 119 and 169).

Specification 01 20 00 (Price and Payment Procedures):

• INSERT: Clarification on measurement units for various in-situ treatment materials (conversion from CY to tons with provided unit weights) (per PPI 148).

Specification 01 57 19 (Temporary Environmental Controls):

• INSERT: Clarification that bulkhead wall installation is considered in-water work (per

PPI 55).

• INSERT: Direction to obtain the Construction Stormwater General Permit through the

EPA (per PPI 173 and 178).

• INSERT: Clarification that the USCG is precluded from discharging decant water (per

PPI 117 and 129).

• INSERT: Section 3.11 Unconfined Bubble Curtain Specification

Specification 26 11 16 (Secondary Unit Substations):

• REMOVE Specification 26 11 16 paragraph 2.2.4.1(a): Design: Provide meter designed for use on a 3-phase, 4-wire, for voltage as indicated on the drawings with 3 current transformers. Include necessary KYZ pulse initiation hardware for Energy Monitoring and Control System (EMCS).

• INSERT: Specification 26 11 16 paragraph 2.2.4.1(a): Design: Provide meter on primary and secondary side of the transformer designed for 3-phase, 3-wire voltages with 3 current transformers as indicated on the drawings. Include necessary KYZ initiation hardware for Energy monitor and Control Systems (EMCS) (per PPI 72).

• INSERT: Sections 2.2.5.4 and 3.3.7 detailing Line Insulation Monitor requirements (per PPI 225). SD-03 Product Data to also include Line Insulation Monitor.

• INSERT: Section 2.2.5.4 will state:

o "Line Insulation Monitor For ungrounded power systems, the ground detectors required by NEC Article 250.21 shall be an active electronic line insulation monitor (LIM) or ground monitor. Ungrounded systems shall be legibly marked “Caution: Ungrounded System Operating - _______Volts Between Conductors” at the source or first disconnecting means of the system per NEC 250.21(C).

o Monitors primary function shall measure the insulation resistance of the ungrounded shore facility electrical system from the isolation transformer to the shore tie receptacles, and function may be extended to monitor the vessel electrical system under the conditions noted below. Monitor shall have adjustable pre-alarm and alarm-level settings based upon insulation resistance leakage currents. Features are listed in the following subsections. Monitors shall be compatible with the Surface Forces Logistics Center (SFLC) product line Monitor shall be capable of insulation resistance of providing recommended monitoring levels at: Level-1 Amber Alarm 200 kilohms, Level-2 Red Alarm 10 kilohms.

o Setting shall be set to pre-alarm at 200 kilohms and alarm at 10 kilohms. the settings of the unit shall be readjusted to any value in the field as directed by SFLC product line.

• INSERT: Section 2.2.5.4.1 Alarm/Strobe will state:

o Pre-alarm/strobe shall be activated when the monitored system line insulation resistance leakage level reaches 200 kilohm or below (adjustable between 35–200 kilohms). Visual alarm shall consist of an amber strobe only.

o Alarm/strobe shall be activated when insulation resistance leakage current exceeds 10 kilohms or below (adjustable between 10–100 kilohms).

o Audio/visual alarm shall consist of a red strobe light and horn mounted adjacent to the pre-alarm strobe.

o The horn shall have a pulse sound distinct from other alarms. If either strobe is activated, local personnel (ship or shore) shall immediately notify the FE for the unit.

• INSERT: Section 2.2.5.4.3 Indicating Meter:

o Provide meter with external panel-mounted kilohm indicating instrument, minimum 96 mm square. The indicating meter shall be visible from the outside of the panel and shall be totally weather protected."

• INSERT: Section 3.3.7 will state:

o "3.3.7 Line-Insulation Monitor. Line isolation monitor shall be installed in the switchgear distribution section, as indicated on plans and per manufacturer’s recommendation."

• INSERT: Section 1.3.1 - Add in SD-03 Product Data: "Line Insulation Monitor; G"

Specification 26 20 00 (Interior Distribution Sytem):

• INSERT: Clarification that this specification applies to electrical equipment inside the boathouse (per PPI 68).

Specification 26 24 13 (Switchboards):

• REMOVE: Requirement for bases, frames, and channels of enclosures to be fabricated of ASTM A240/A240M type 304 or 304L stainless steel in Section 2.2.2.1(d) (per PPI 79).

• INSERT: Section 2.2.2.1 (d) in Spec 26 24 13: “Bases, frames and channels of enclosure: corrosion resistant and fabricated of ASTM A240/A240M type 316 stainless steel. Types 304 and 204L stainless steel are not acceptable. Separate sections using vertical steel barriers (per PPI 79).

• REMOVE Specification 26 24 13 paragraph 2.2.2.3: Provide the main section consisting of an individually mounted drawout insulated-case circuit breaker.

• INSERT Specification 26 24 13 paragraph 2.2.2.3: Provide the main section consisting of an individually fixed mount insulated-case circuit breaker.

• REMOVE Specification 26 24 13 paragraph 2.2.2.4: Provide the distribution section consisting of individually mounted, draw out insulated-case circuit breaker.

• INSERT Specification 26 24 13 paragraph 2.2.2.4: Provide the distribution section consisting of individually fixed mount, insulated-case circuit breaker.

• INSERT Specification 26 24 13 paragraph 2.2.2.6: Low Voltage Transformer Distribution Panelboard: Each low voltage transformer distribution panelboard shall include a primary main breaker, an encapsulated dry-type transformer and a panelboard with secondary breaker. Primary main, secondary main and feeder breakers shall be enclosed with a padlockable hinged door. The enclosure shall be made of heavy-gauge steel, and the maximum temperature of the enclosure shall not exceed 90 degrees C. The enclosure shall be totally enclosed, nonventilated, NEMA 3R, with lifting provisions.

Transformer core shall be constructed with high-grade, non-aging, silicon steel with high magnetic permeability, and low hysteresis and eddy current losses. Maximum magnetic flux densities shall be substantially below the saturation point. The transformer core volume shall allow efficient transformer operation at 10% above the nominal tap voltage.

The core laminations shall be tightly clamped and compressed. Coils shall be wound of electrical grade aluminum or copper with continuous wound construction. The core and coil assembly shall be completely encapsulated in a proportioned mixture of resin and aggregate to provide a moisture proof, shock-resistant seal. The core and coil encapsulation system shall minimize the sound level.”

• INSERT Specification 26 24 13 Paragraph 3.3.6: Low Voltage Transformer Distribution Panelboard: The contractor shall install all equipment per the manufacturer’s recommendations and the contract drawings. The following factory tests shall be performed on the equipment in accordance with the latest version of ANSI and NEMA.

Ratio tests and the rated voltage connection at all tap connections, polarity and phase-relation tests on the rated voltage connection, applied potential tests, induced potential tests, no-load and excitation current at rated voltage on the rated voltage connection. The core of the transformer shall be grounded to the enclosure. Provide two (2) 5% FCBN taps.

• REMOVE Specification 26 24 13 paragraph 2.2.3.1(a): UL 489. UL listed and labeled, 100 percent rated main breaker manually operated, low voltage molded-case circuit breaker, with a short-circuit current rating rms symmetrical amperes as indicated.

• INSERT Specification 26 24 13 paragraph 2.2.3.1(a): UL 489. UL listed and labeled, 100 percent rated main breaker electrically operated, low voltage molded-case circuit breaker, with a short-circuit current rating rms symmetrical amperes as indicated.

• REMOVE Specification 26 24 13 paragraph 2.2.3.2(a): UL 489. UL listed and labeled, 100 percent rated main breaker manually operated, low voltage molded-case circuit breaker, with a short-circuit current rating rms symmetrical amperes as indicated. (per

PPI 224).

• INSERT Specification 26 24 13 paragraph 2.2.3.2(a): UL 489. UL listed and labeled, 100 percent rated main breaker electrically operated, low voltage molded-case circuit breaker, with short-circuit current rating rms symmetrical amperes as indicated. The motor operator must also be capable of closing the breaker.

Specification 26 27 29 (Marina Electrical Work):

• REMOVE Specification 26 27 29 paragraph 2.21.1.2: Hot dipped galvanized, or electrogalvanized and zinc chromate coated steel. Channels shall be 14 gauge minimum, 13/16 inch or 1 5/8 inch deep by 1 5/8 inch wide minimum.

• INSERT Specification 26 27 29 paragraph 2.21.1.2: Stainless steel. Channels shall be 14 gauge minimum, 13/16 inch or 1 5/8 inch deep by 1 5/8 inch wide minimum.

• INSERT: Clarification that this specification applies to electrical equipment outside the boathouse and on floating docks (per PPI 68).

Specification 31 00 00 (Earthwork):

• INSERT Specification 31 00 00 Section 1.3.9.2: At the end of this section, add: "The combined material shall conform to the following soil grading requirements." (per PPI 104).

Specification 31 41 16 (Metal Sheet Piling):

INSERT Specification 31 41 16 Paragraph 1.4.2: The following will be added at the end of Note #5 in SC125 drawing under General Sheet Notes, as well as Specification Section 31 41 16 on “Metal Sheet Pilling”, Chapter 1.3.3. “Production Sheet Pile Acceptance Criteria”.

“The sheet pile shall be installed to the tip elevation shown in the Contract Plans.

Vibratory pile driving of the sheet piles to tip elevation with no impact driving is acceptable if design tip elevations are reached.” (per PPI 132).

Specification 31 62 16.13 (Steel Pipe Piles):

• REMOVE Specification 31 62 16.13 Section 3.3.1(b) paragraph 3: Perform pile dynamic testing on all Indicator and Test Piles using a Pile Driving Analyzer (PDA).

Perform the pile dynamic testing in accordance with ASTM D4945 to measure the hammer transferred energy, pile ultimate axial capacity and to verify that the piles are not being overstressed or damaged during installation. The pile dynamic testing data shall be obtained from the pile driving at the end of driving (EOD) and at the beginning of restrike (BOR) at the minimum tip elevation shown on the plans or the elevation required to achieve the ultimate capacity as determined by the WEAP analysis, whichever is deeper.

• Insert Specification 31 62 16.13 Section 3.3.1(b) paragraph 3: Perform pile dynamic testing on all Indicator and Test Piles using a Pile Driving Analyzer (PDA). Perform the pile dynamic testing in accordance with ASTM D4945 to measure the hammer transferred energy, pile ultimate axial capacity and to verify that the piles are not being overstressed or damaged during installation. The pile dynamic testing data shall be obtained from the pile driving at the end of driving (EOD) and at the beginning of restrike (BOR) at the minimum tip elevation shown on the plans or the elevation required to achieve the ultimate capacity as determined by the WEAP analysis, whichever is deeper. The proposed test and indicator piles can be installed as non-production sacrificial piles south of the bulkhead combi-wall alignment. The test and indicator piles shall be located to have no conflict with all existing utilities or structures. If there are any conflicts with existing utilities or structures, the Contractor shall obtain a revised position from the Contracting Officer. Upon completion of the PDA testing and approval of the Contracting Officer, the full length of all the sacrificial test and indicator piles shall be extracted from the ground. These sacrificial test and indicator piles are in addition to the original bulkhead wall piles. If test piles are installed in non-production pile locations, the Contractor will be responsible for additional costs associated with completing this work.

Data obtained from the Test Pile Program is intended to be used on future phases of the project.

• INSERT: Statement in Chapter 3.1.2 that all toe wall piles shall be ordered based on tip and cutoff elevations in the drawings (per PPI 137).

• INSERT: Statement in Chapter 3.2.1 that all underwater toe wall production piles shall be driven to the tip and cutoff elevations in the drawings (per PPI 137).

• REMOVE: Requirement to grind pile tops smooth for welding in Section 1.5.3 (per PPI 158).

• INSERT: Section 31 62 16.13 on Steel Pipe Piles, Chapter 3.1.2: “All piles for the underwater toe wall shall be ordered based on the tip and cutoff elevations in the drawings.”

• INSERT: Section 31 62 16.13 on Steel Pipe Piles, Chapter 3.2.1: “All the underwater toe wall production piles shall be driven to the tip and cutoff elevations in the drawings.”

Specification 33 11 00 (Water Utility Distribution Piping):

• INSERT Specification 33 11 00 Paragraph 1.6: "City of Seattle Utility Permit" as follows: "Contractor shall obtain the appropriate utility permit for work associated with the connection of the upgraded sewer line into the existing Seattle Public Utility sewer main in Alaskan Way.

Specification 35 20 23 (Dredging):

• REMOVE: References to Decision Units (DUs) (per PPI 13, 19, 131).

• INSERT: Clarification that there is no restriction for dredging except as stated in the specifications, and a 500-foot buffer is acceptable (per PPI 13, 19, 131).

• INSERT: Requirement for contractor responsibility for replacing contaminated placed material due to dredging (per PPI 13, 19, 131).

THE FOLLOWING PPI ANSWERS FROM PREVIOUS AMENDMENTS HAVE BEEN

REVISED. PLEASE DISREGARD THE PREVIOUS ANSWERS PROVIDED FOR

THESE PPI QUESTIONS:

FROM AMEDMENT 03:

PPI 100: Note 117 on CD106 indicates that the existing armory is to be relocated. Please provide location for relocation.

Answer: Exact locations for relocated facilities will be laid out during the kick-off meetings by the Contracting Officer or Contracting Officer Representative.

Note that the exact temporary facility locations shown in the Phase 1A IFB drawings differ from the as-built drawings for the Base Seattle Terminal 46 Temporary Facilities project, e.g. boat storage tents, shipping containers, and multi-purpose tent. The Terminal 46 Temporary Facilities As-Built drawings were intended to be an attachment to the solicitation package for the contractors’ review.

PPI #101. Note 113 on CD106 indicates that existing connex boxes are to be relocated. Please provide location for relocation.

Answer: Exact locations for relocated facilities will be laid out during the kick-off meetings by the Contracting officer or Contracting Officer Representative.

Note that the exact temporary facility locations shown in the Phase 1A IFB drawings differ from the as-built drawings for the Base Seattle Terminal 46 Temporary Facilities project, e.g. boat storage tents, shipping containers, and multi-purpose tent. The Terminal 46 Temporary Facilities Project As-Built drawings were intended to be an attachment to the solicitation package for the contractors’ review.

FROM AMEDMENT 04:

PPI 39: Drawing CD 103 identifies a section of Knee Wall on the east end of Building 3 to be demolished (drawing grids E-4 and F-5). On the same drawing other areas of the knee wall are shown to be “Existing, Protect-in-Place.” There is no clear line of demarcation between the portions to be removed and the portions to remain. Please advise.

Answer: Demolition of the knee wall is to extend approx. 30-ft south of the corner shown in the image below.

PPI 46: On Drawings CD108 and CD109 you show fencing required but no detail of the fence.

Are we to assume that the same detail as shown on CP502 applies here? This detail shows chain link fence with concrete barriers.

Answer: See image below for reference. Demolition of fencing shall also include all posts and footings.

PPI 57: Specification 26 27 29 seems to indicate that conduit strut straps are required to be stainless steel, but support strut channel, hardware, and threaded rod is only required to be galvanized steel. Please confirm that this is correct, and the intent of the design.

Answer:

See revised Spec Section 26 27 29 paragraph 2.21.1.2 in this amendment.

PPI 66: Notes 11 and 12 on ES101 indicate new receptacles, but the desired NEMA Rating/Configuration of these receptacles is not clear. Please provide the desired NEMA Rating/Configuration of these receptacles.

Answer: NEMA rating for new the receptacles will be included on Detail A1, and A6 on sheet E-508, which will be included in the forthcoming “Issued for Construction Set.” The 60A receptacle will have a NEMA rating/configuration of 14-60R. The 20A receptacle will have a NEMA rating/configuration of 5-20R. The 30A receptacle will be identified as NEMA rating/configuration of 10-30R. A general note will be added for the Contractor to match existing NEMA rating/configuration, to be verified in the field.

PPI 72: Demand meter shown on primary of transformer, but spec and sheets E602/E603 indicates KWH meter should be in LV switchboard. Please confirm desired location.

Answer: Sheet E-603 a KWH meter symbol will be added to the single line diagram on the primary side of the transformer on detail A5.

PPI 74: Plans E-603/E-604: Substation feeder breakers show boxed "M" connected. Note 6 says shunt trip only and specs indicated manual operation. Is motor operator desired for remote closing of breaker also? If not what does M denote

Answer: The motor operator is desired for remote closing also. See revised Specification 26 24 13 in this amendment.

PPI 75: Plans E-603/E-604: General Sheet Note 1 denotes that dashed lines indicate existing, continuous line indicates new. All subs and power mounds shown in dashed lines. Are these in scope?

Answer: The substation and power mounds are in scope, the linetype around the equipment represents the equipment enclosure. Note 1 was changed indicate that items with heavy linetypes are to be included as part of the proposed work. See revised E-603 & E-604 drawings in this amendment.

PPI 79: 26 24 13 (2.2.2.1) states that switchboards should be SS304 or SS304L. 26 11 16 (2.2.3.1) states that outgoing section enclosure is in accordance with incoming section enclosure (2.2.1.1) which calls out SS316. What type of SS should the LV switchboard be built with?

Answer: See revised Spec Section 2.2.2.1 (d) in Spec 26 24 13 in this amendment.

PPI 110: Keynote A4 on Drawing AB200 shows translucent wall panels on the boathouse.

These are not described anywhere in the specifications. Please provide a specification with more information for these panels.

Answer: See revised drawing AB200 in this amendment for translucent wall panel specifications.

PPI 113: Would the owner consider allowing the boathouse to be a pre-engineered metal building that meets the size and space requirement of the boathouse shown on the drawings? It's likely a pre-engineered solution would be a more economical approach to meeting the programming needs for this boathouse.

Answer: Pre-engineered metal building is not acceptable for the boathouse. Provide as shown on the drawings and specifications.

THE FOLLOWING PPI’S FROM PREVIOUS AMENDMENT DID NOT CONTAIN

THE FULL TEXT OF THE QUESTIONS. THEY ARE BEING RE-ISSUED TO SHOW

THEIR FULL TEXT ALONG WITH THE ANSWERS. PPI NUMBERS: 62, 67, 124, 125,

130, 141, 144.

PPI #62: The sheet pile identified in the temp. toe wall to Ex. toe wall connection and future bulkhead wall is a NZ28 section. The NZ28 is a proprietary hot rolled section manufactured by Nucor-Yamato and exclusively distributed by Nucor Skyline. The sheet pile procurement would be a sole source purchase, and it would not be possible to obtain competitive bids.

Would an AZ28-700 per ASTM A572 gr.60 be an acceptable substitution/alternative for the NZ28? The AZ28-700 is a hot rolled section manufactured by Arcelor Mittal (AZ sections) and meets FAR 52.225-11 Buy American-Construction Materials under Trade Agreements. The AZ28-700 has a Section Modulus (Elastic) 51.3 IN^3/FT, Moment of Inertia 465.9 in^4/ft and 27.56” single width which is identical to the NZ28. It appears that the existing toe wall utilized a HZ 975D-24 which had an infill AZ13 sheet pile section.

Answer: The sheet pile section for the new Pier 36B bulkhead wall was not specified. For both Pier 36B new bulkhead wall and Pier 36A temporary toe wall, Sheet S-003 includes minimum requirements for the contractor-selected sheet pile section, such as the min.

elastic section modulus and min. flange and web thicknesses.

PPI #67: A single 100A Enclosed Circuit Breaker (No size or equipment ID indicated) is shown on Detail A4, E-508 which serves Cable Tag ID STC2 (Power Pedestal 4). The electrical equipment serving Power Pedestal 4 has no dashed line around it, indicating which equipment is to be installed in the same enclosure. Please provide updates to the plans with labels on the 100A C.B (E-508) and indicate the equipment to be contained in the same enclosure on E-602 serving Power Pedestal

Answer: The circuit breaker size on Detail A4, E-508 will be updated to represent a 125A circuit breaker. A dashed line will be incorporated on E-602 for power pedestal 4 to represent that the equipment after the transformer secondary will be included in the power pedestal.

PPI #124: Base Item 2F: Question: There are 5 Armor Stone “Types.” The bid item 2F indicates 13,343 short tons as the quantity. Please provide a quantity table for each “Type” of Armor Stone that makes up the 13,343 short tons in the bid schedule.

Answer: See response provided in Amendment 08.

PPI #125: Base Item 2G: Question: There are 5 Granulated Filter Layer “Types.” The bid item 2G indicates 6,130 short tons as the quantity. Please provide a quantity table for each “Type” of Granulated Filter Layer that makes up the 6,130 short tons in the bid schedule.

Answer: See response provided in Amendment 08.

PPI #130: CN300, note 10 and CH102 reference existing stone to be temporarily removed and stockpiled for reuse. What "Type" of Armor Stone makes up the existing stone? What is the location where this stone can be re-used? Is the quantity of this stone in addition to bid item 2F?

Where can the existing stone be temporarily stockpiled?

Answer: The location and if existing stone can be used will be determined in the construction phase. The existing stones need to be inspected and be tested if necessary before be approved by the Contracting Officer or their designated representative.

PPI #141: In the regulated building materials assessment report it shows that PCB sample 3- PCB4-01 came back positive for PCB’s at 13 PPM. This sealant will need to be removed in order to be able to recycle the substrate that the sealant is on. The sample location was listed as a patch on column S on northside of building. What material is this sealant applied to? What is the quantity of the 13 PPM PCB sealant?

Answer: Sealant is applied to corrugated metal siding and quantity is approx 75 linear feet.

PPI #144: Electrical/Steel: Detail A2/E505 calls for installation fo gaskets to what looks to be existing structural steel supports for a floating dock panel. There is no other sheet we can see directing us to this specific detail. We are making an assumption this is in relation to electrical panel FB, elevations on E-508, however A2/E505 has a water line shown and E-508 has everything anchoring to grade with no water line. Can you please clarify where detail A2/E-505 is applicable to? Are these existing floating dock panels? Are the steel supports existing? Will there be required work to lift existing floating dock panels to access steel supports for installation of gaskets?

Answer: Reference will be made to Panel FB in detail A2/E505. Detail A2 on sheet E505 will be revised to match the partial elevation shown on detail A4 on sheet E508. This change will be reflected in the forthcoming “Issued for Construction Set.” The panel equipment will be strut mounted to new floating dock panels.

Note that references steel support and gaskets will be removed as it is not applicable ("Floating dock panel base, provide 1/4" continuous gaskets to raise steel support above standing water"). There will be no work to lift floating dock panels to access steel supports.

THE FOLLOWING QUESTIONS WERE RECEIVED IN RESPONSE TO THE

SOLICITATION.

PPI 12: Please confirm the water quality criteria (i.e. turbidity limits) for both dredging and capping. Will any exceptions be given for capping with clean imported materials?

Answer: Water quality criteria and the frequency of sampling are still under review by the US EPA and the US Army Corps of Engineers [USACE]. The attached " WQMP Excerpt_PPI 12" provides the proposed water quality criteria and sampling frequency; the Contractor should assume these are the requirements for cost estimating purposes.

PPI 13: Please note that DUs do not appear to be shown on plans CN 101. Can these please be provided? Is there any flexibility in the size, shape, and number of DUs?

Answer: DUs have been removed from the Contract Documents, Plans, and Specifications.

There is no restriction for dredging except as otherwise stated in the specifications. A minimum buffer of 500 feet between active dredging and placement is acceptable as long as other requirements of the specifications are met. The Contractor is responsible for replacing in-kind any placed material that is contaminated as a result of dredging. See Additional Changes Log (Tab B in this file) for additional changes to the Drawings and Specifications regarding dredging, sampling, and materials placement.

PPI 16: CN102 – Note 12 – It this requirement for areas that have been dredged (i.e once dredged, shall be covered in that season) or does this apply for the entirety of the dredging / cover task (i.e. all dredging and cover completed in one season)?

Answer: Dredging to the extent possible will be completed in the 2026-2027 In-Water Work Window (IWWW). Confirmation sampling conducted by AECOM will be conducted as soon as feasible following dredging. Instructions regarding additional Dredge Areas or revised Placement Areas will be provided by June 15th, 2027 to the Contractor. Additional dredging and cover placement will be completed in the 2027-2028 IWWW. See Additional Changes Log (Tab B in this file) for additional changes to the Drawings and Specifications regarding dredging, sampling, and materials placement.

PPI 19: 35 20 23 – 1.3.2: Does the contractor have to finish DU by DU or can multiple DUs be undertaken at a time to avoid dredging cover materials when starting the adjacent DU? Can a buffer between active dredging and capping be maintained to minimize cross contamination?

Answer: DUs have been removed from the Contract Documents, Plans, and Specifications.

There is no restriction for dredging except as otherwise stated in the specifications. A minimum buffer of 500 feet between active dredging and placement is acceptable as long as other requirements of the specifications are met. The Contractor is responsible for replacing in-kind any placed material that is contaminated as a result of dredging. See Additional Changes Log for additional changes to the Drawings and Specifications regarding dredging, sampling, and materials placement.

PPI 41: The test piles shown on Drawing SC125 are indicated to be incorporated into the final combi-wall. Because these test piles are driven individually and separated by approximately 20 feet, it will be extremely difficult to make all of the intermediate interlocked connections after the fact. Is it acceptable to drive these test piles south of the combi-wall alignment and then cut them off and abandon the driven portion in place once all of the PDA data is acquired?

Answer: Bulkhead wall plan and elevation in in detail drawings E1 and A1 in Sheet SC125 of the drawing set will be revised to show the acceptable test pile locations based on the marked-up clip below. Also see revisions to drawing SC125 General Note 2 and Specification 31 62 16.13 Section 3.3.1(b) in this amendment.

PPI 43: On Drawing SS150 Section F1 “Gangway Plan” the new gangway is shown dimensionally as 78-feet-long. In the Elevation View C1 on the same drawing the gangway is labelled as “80’ Gangway.” Please confirm the desired length of the new gangway.

Answer: The new gangway length shall be 80 ft. Drawings will be updated to reflect this.

PPI 44: Note 4 on Drawing SD142 “Floating Dock Structural Demolition Plan” states (paraphrasing here) that utility connection details are to be found on Drawings TW106 thru TW112. It does not appear that these drawings have been provided in the current set of documents. Please advise.

Answer: This cross-reference is incorrect. This note will be updated; the reference to Sheets TW106-112 will be replaced with Sheets CU441, CU 442, FM441, EP141, EP142, EP 541, and EP 641.

PPI 47: On Drawing CD108 and CD109 you have note #3 Eco Block Barrier to be moved from Lease Line Fence to perimeter area. Are these eco blocks existing? If so, where is the Lease Line fence located that we are to obtain these blocks from? Note 4 states “For relocation call contracting officer.” Are we to relocate these blocks once we are finished?

Answer: See revised CD108 and CD109 in this amendment.

PPI 49: Will the contractor employees require a TWIC card (Transportation Worker Identification Credential) to access the project site location?

Answer: No, a TWIC will not be required to access the project site. However Base Seattle Uses RapidGate for contractor access, see 01 14 00 Paragraph 1.4.1.2 for Base access requirements.

PPI 50: Due to the amount of in-water work required for this project and the limited time allowed to complete this work due to the fish window restrictions, we request the contract time of completion be extended to March 1, 2028, or a total duration of 1,320 calendar days from award date, which would be 7/14/2025 based on current bid date.

Answer: Period of performance is extended to 1,320 calendar days.

PPI 51: This project will generate excess soil and concrete debris outside of the dredging work.

You have identified the hazardous materials on Drawings H100 to H200 for asbestos, lead, and lighting ballasts. Yet we see no mention of soil or concrete debris contamination. Unless told otherwise, we are going to assume these materials will be treated as nonhazardous and can be disposed of accordingly.

Answer: This approach is acceptable for pricing, but Contractor shall note that we do not have data confirming material is non-hazardous.

PPI 52: On Drawing CD106 we are required to relocate a multi-purpose facility, shower trailers, and an armory. Please let us know where you would like us to relocate these items to. Also, once relocated are we expected to provide utilities for each of them for continued use?

Answer: Some of the items designated on CD106 are called out for removal (off-site) while others are relocation (on-site). The exact location for relocation within the project site is to be determined by the USCG Contracting Officer or their designated representative.

Utilities will be required for the relocated facilities.

PPI 55: Specification Section 01 14 00 1.3.e states: "No in-water work may be performed during the period of February 16th to July 15th, inclusive, without prior written approval of the Contracting Officer or their designated representative. Work conducted above Highest Astronomical Tide (HAT) is not considered in-water work and can be conducted outside of the in-water work window." The top of the existing slope at the location of the new bulkhead wall appears to be at, or near, the highest astronomical tide, and during typical tides will be out of the water. Please confirm if the bulkhead wall installation will be considered in-water work.

Answer: The bulkhead wall installation is considered in-water work.

PPI 59: There are some discrepancies between the electrical and telecommunications plans regarding how the communications conduit is depicted. On the electrical sheets, such as ES101 and ES102, we see a single COM4 and SP4 conduit tag, which would indicate a single 4” conduit plus spare in keeping with similar conduits on the electrical conduit schedule. COM4 is not shown on any conduit schedule that we can find. On T-101 Installation Notes we find reference to (4) 4” telecom conduits travelling the length of the pier, between under pier junction boxes. It’s not clear between these disciplines how many conduits for telecom are required.

Answer: T-101 will be adjusted to match the conduit runs shown in ES101 and ES102. The "COM4" conduit tag will be modified to "SP4", see telecom feeder schedule for communication cable requirements.

PPI 60: Electrical and utility plans call for there to be adequate slack in the conduit/cabling/flex for utilities at the piers and floating docks to accommodate tide changes. Please provide what length is 'adequate', as that is an engineering item we cannot predict and forecast.

Answer: For the fueling lines, different system suppliers will have different installation requirements and bend radius and other factors are not standardized. We have used Doubletrac as the Basis of Design, so any other system supplier used will require confirmation with the supplier that the slack provided will be adequate. Based on tidal variation and bend radius, Contractor shall provide a 45’ vertical slack from the start of turndown to the point of connection to the dispenser sump. The total length (including horizontal distance) shall be dependent on the installed location underneath the pier, and the engineer shall review and confirm the length is acceptable. If the installed location matches the provided drawings, the additional length required for the horizontal distance is 20’ for a total of 65’.

For the electrical lines, See revision noted for Sheet E505 Detail D2 in this amendment

For the sanitary sewer lines, the slack required will depend on which segment of pipe you are referred to. Provide slack in accordance with the below criteria.

1. Where both ends of the line are connected to a floating dock (Subject to elevation change), an additional 5-ft of slack will suffice.

2. Where only (1) end of the line is fastened to the floating dock, and the other end is statically secured (the elevation doesn't change), the tidal swing will need to be factored. In this case, please include (roughly) 20-ft of line to accommodate the tidal swing (Highest Observed Tide – Lowest Observed Tide).

PPI 61: Please confirm that expected permit costs are to be carried in the contractor's bids.

Answer: Confirmed.

PPI 62: "The sheet pile identified in the temp. toe wall to Ex. toe wall connection and future bulkhead wall is a NZ28 section. The NZ28 is a proprietary hot rolled section manufactured by Nucor-Yamato and exclusively distributed by Nucor Skyline. The sheet pile procurement would be a sole source purchase, and it would not be possible to obtain competitive bids.

Would an AZ28-700 per ASTM A572 gr.60 be an acceptable substitution/alternative for the NZ28? The AZ28-700 is a hot rolled section manufactured by Arcelor Mittal (AZ sections) and meets FAR 52.225-11 Buy American-Construction Materials under Trade Agreements. The AZ28-700 has a Section Modulus (Elastic) 51.3 IN^3/FT, Moment of Inertia 465.9 in^4/ft and 27.56” single width which is identical to the NZ28. It appears that the existing toe wall utilized a HZ 975D-24 which had an infill AZ13 sheet pile section. "

Answer: The sheet pile section for the new Pier 36B bulkhead wall was not specified. For both Pier 36B new bulkhead wall and Pier 36A temporary toe wall, Sheet S-003 includes minimum requirements for the contractor-selected sheet pile section, such as the min.

elastic section modulus and min. flange and web thicknesses.

PPI 64: Are there any as-built drawings for sheet wall to be removed on sheet SD321/B8? What type of sheets and tip elevation?

Answer: See attached Record Drawing Sheets S50 and S51. Per Record drawings S50 and S51 King Pile is HZ975 with top elevation of -10 and tip elevation is -104. Sheet pile is AZ 19 with top elevation of -10 and tip elevation of -84.

PPI 65: Where are the Power Centers shown on E-605 specified in the specifications? These appear to be combination transformer/panelboards.

Answer:

See revisions to specification 26 24 13 in this amendment including Sections 2.2.2.6 and 3.3.6.

PPI 66: Notes 11 and 12 on ES101 indicate new receptacles, but the desired NEMA Rating/Configuration of these receptacles is not clear. Please provide the desired NEMA Rating/Configuration of these receptacles.

Answer: Ground Fault Circuit Interrupter (GFCI) is correct. These receptacles will not be Government-furnished.

PPI 67: A single 100A Enclosed Circuit Breaker (No size or equipment ID indicated) is shown on Detail A4, E-508 which serves Cable Tag ID STC2 (Power Pedestal 4). The electrical equipment serving Power Pedestal 4 has no dashed line around it, indicating which equipment is to be installed in the same enclosure. Please provide updates to the plans with labels on the 100A C.B (E-508) and indicate the equipment to be contained in the same enclosure on E-602 serving Power Pedestal

Answer: The circuit breaker size on Detail A4, E-508 will be updated to represent a 125A circuit breaker. A dashed line will be incorporated on E-602 for power pedestal 4 to represent that the equipment after the transformer secondary will be included in the power pedestal.

PPI 68: Please confirm that all electrical equipment shown inside the boathouse should be as specified in Spec 26 20 00, and all equipment outside the boathouse should be as specified in Spec 26 27 29.

Answer: All electrical equipment inside the boathouse is specified in Spec 26 20 00. All other equipment on the floating docks is specified in Spec 26 27 29.

PPI 69: E-504, Detail F4 shows 6-gang power mound. The other electrical plans describe a 5-gang power mound. Please indicate which is correct and update the plans.

Answer: A 6 gang power mound is not required. The details will be updated to consistently represent a 5-Gang power mound.

PPI 70: E-603: Shows 6#12’s typical from each power mound receptacle for controls, but the conduit/feeder schedule does not seem to show a conduit with these conductors between the power mound and anywhere else.

Answer: Changes to the forthcoming “Issued for Construction” set will include:

6#12 wires will be provided for each receptacle, a 10-Gang will have 60#12 total, & a 5- Gang will have 30#12 total.

All control wires will be in the spare 4" conduit (SP4) that is in the same routing as the 400A, 450V under wharf conduits that feed the power mound receptacles.

• Sheets ES101 and ES104 – Feeder callouts for number of 6#12 control conductors will be provided on detail A5 of the site plan.

• Sheets ES400 – Feeder callouts for the 6#12 conductors will be provided on details A1, A5, D1, D7.

• Sheet E-503 – Feeder callouts for the 6#12 conductors will be provided on details A1, D1, F7.

• Sheet E-601 – Power mound 36A will be revised to…