RFI-Space Control Facility W50S6V-20-B-0001_10AUG20.pdf

QUESTIONS AND ANSWERS FOR SOLICITATION W50S6V-20-B-0001

COANG-Space Control Facility

Project No. TDKA 16-9004 10 August 2020

Posted Date: 20 July 2020

Question 1: Exterior door 121B enters into access flooring area. The concrete floor is 2 feet below finish floor. Should there be a concrete beam or cap at sill of door in masonry wall?

Answer 1:

The CMU masonry foundation wall is grout solid from top of footings to finished floor elevation, with additional reinforced cells grout solid. A concrete beam across door threshold should not be necessary, but we recommend full depth threshold cover plate extending across to access flooring.

Question 2: Is reference to note 13 on S-101 intended to reference general note M for future blockout? Will there be ACM reveals coordinated with this future block out? There are not any references to future block out on Architectural sheets.

Answer 2:

YES. Sheet S-101 Floor Plan to indicate see General Note M, in lieu of see Note 13. The ACM does not require reveals for future block out. Addendum 1.

Question 3: Sheet A-402 Keynote 18 indicates Steel Ladder. Detail C6 indicates MFGR Aluminum ladder. Which is correct?

Answer 3:

A-402 Keynote 18 to indicate ‘ALUMINUM LADDER TO ROOF SCUTTLE/HATCH’, in lieu of steel ladder. Addendum 1.

Question 4: Sheet A-502 Wall Sections detail E6 is indicating Keynote 24 – modified bitumen roof membrane on parapet wall as appears to top of wall. Should this detail indicate modified bitumen roof membrane up wall a minimum of 8” with elastomeric coating on CMU to top of parapet wall as is required for all exposed CMU?

Answer 4:

YES. A-502 Keynote 24 to indicate ‘MODIFIED BITUMEN ROOF MEMBRANE UP WALL A

MINIMUM OF 8” WITH ELASTOMERIC COATING ON CMU TO TOP OF PARAPET WALL AS

IS REQUIRED FOR ALL EXPOSED CMU.’ Addendum 1.

Question 5: Specifications include section 034500 Precast Architectural Concrete. We are not finding the location for precast concrete sills. The sills below windows in brick veneer are shown as brick rowlock. Are there other locations that require precast concrete sills?

Answer 5:

NO. Omit Specification Section 03 45 00 Precast Architectural Concrete.

Precast Window Sills were included in the project prior to changing to ACM Exterior Finish, and this section should have been removed. Addendum 1.

Question 6: Sheet A-101 Floor Plan wall section E6 has note 4 (2 ½” steel studs) and note 41 (2 ½” rigid board insulation) on inside of wall. This conflicts with referenced typical detail A6/A-521 on section E6. A6/A-521 indicates 2 ½” steel studs with fiberglass batt insulation. Is A6/A-521 correct and is this typical condition on all masonry walls around admin area?

Answer 6:

The portion of wall with brick veneer requires a continuous insulation (R-11.5 minimum).

Due to the percentage of CMU cells grout solid, the foamed insulation will not provide the continuous thermal barrier required, and fiberglass insulation can’t provide with that minimum thickness. Provide rigid board insulation for the portion of wall with brick veneer. The portion of walls with ACM have continuous rigid insulation at part of their system, and the use of fiberglass for the balance of the exterior walls surrounding the Administration Areas and Operations Areas will provide adequate minimum continuous insulation.

Question 7: Sheet A-521 Exterior Details, D3 Storefront sill- ACM Panels. Should this detail indicate simulated stone stool typical for storefront windows?

Answer 7:

YES. Detail D3/A-521, to include note ‘solid surface window stool’ at the inside of storefront windows in lieu of illustrating a gypsum board return. Addendum 1.

Question 8: Sheet A-521 Exterior Details, G3 Storefront Jamb -ACM Panels indicates 12” CMU. Should this indicate 8” CMU as there are not any storefront in 12” CMU walls?

Answer 8:

YES. Detail G3/A-521 to indicate 8” CMU in lieu of 12” as shown, and change the plan south dimension leader to face of CMU in lieu of to outside face of wall as shown. Addendum 1.

Question 9: Sheet A503 Wall Sections, A6 Wall Sect. – Maint. @ O.H. Door has keynote 38 ACM Panel Insulation. This wall does not have ACM Panels. Should this note be removed?

Answer 9:

YES. Delete keynote #38, reference to ACM, on detail A6/A-503 The ACM was included on a previous iteration, but is no longer included on the referenced wall.

Question 10: Sheet A702 Partition Types, wall type 9 indicates 3 5/8” 20 GA Steel Studs @ 16” O.C. (2) layers 5/8” gyp board each side and abuse resistant gypsum board on uncontrolled area side. Should this partition type include (2) layers 5/8” gyp board required on uncontrolled area side.

Answer 10:

Detail (Partition Type 9) on sheet A-702 to indicate 2-layers 5/8” gypsum board one side (Controlled Area) and 1-layer abuse resistant gypsum board opposite side (Uncontrolled Area), in lieu of 2-layers gypsum board each side. Omit reference to ‘each side’.

Posted Date: 31 July 2020

Question 11: Do prospective bidders have an option bid a TPO roof system in lieu of installing the SBS Modified Bitumen system?

Answer 11:

No. The roof shall be bid as shown in the plans and specifications, as an SBS Modified Bitumen system.

Question 12: It appears the plans do not show what the coverboard requirement for the roof should be. Will the Government provide clarification on this?

Answer 12:

Provide (5/8" DENS DECK FIREGUARD X) or approved equal.

Question 13: Specification section 01300, Submittals, para 2.2 and 2.3. Will the Government provide the Electronic Submittal Process/Tracking Program, or is this to be provided by the bidder or Contractor?

Answer 13:

The bidder or Contractor will not have to provide the Electronic Submittal Process/Tracking Program. The Government shall provide it.

Question 14: Will the security fence remain on site during construction?

Answer 14:

The current west end of the fencing is within your construction area, so it will have to be removed to accomplish the construction. To keep the facilities to the east secure a temporary (alarmed) fence will need to be installed. There is a phasing plan on sheets C-120 and C121.

See pending addendum 2.

Question 15: Is there staging space available outside the construction site area?

Answer 15:

A staging space 50’ x 100’ can be made available at the Southeast corner of the project site if needed. It is recommended the area be fenced and must be at least 20 feet from the perimeter fence so Security Forces have access and can complete their security checks.

Question 16: Will power and/or water be supplied by the existing buildings neighboring the site?

Answer 16:

Yes. See Specification Section 01 00 00, paragraph 1.12, Utility Services. It notes that water and electric will be furnished to the contractor without charge where existing outlets are available. The contractor is responsible for installing temporary service outlets and meters, as necessary, at its expense. See also Specification Section 01 00 00, paragraph 1.42.

Posted Date: 6 August 2020

Question 17: The drawings contain no details identifying/clarifying longitudinal construction joints versus transverse contraction joints. Further clarification is needed by providing the bidding contractors a drawing detail showing longitudinal construction joints and transverse contraction joints.

Answer 17:

Sawcut contraction joints are laid out on sheet S-101 and occur in both longitudinal and transverse directions. Based on the dimensions of the building, only one construction joint was designed for at the doorway interface between the Maintenance area and Breakroom, with this noted on S-101. This joint was intended to be an Isolation Joint as defined in the project specifications. While the joints are not explicitly dimensioned, governing maximum dimensions can be found on S-001 notes under “Slab on Grade”. It is not believed additional construction joints are warranted on a building slab of this size, but an RFI would be considered for additional joints if the contractor believes they are warranted. Additional details for a Doweled Joint as defined by the project specifications would be provided. These additional joints would be at no cost to the Government, as they are a contractor preferred option and subject to review and approval.

Question 18: Firestopping (spec section 078413) Will the fire installer qualification of UL or FM 4991 Cert. be strictly adhered to or is a manufacturer certification with 15+ years of experience in similar project is acceptable?

Answer 18:

Yes, the fire installer will have to meet the requirements of specification section 07 84 13 para.

1.5. A.

Question 19: New Wall on Exterior of Building (Concrete/Masonry); What material is the “re-used” block?

Answer 19:

There are two walls on the East side of the building. The first is a low (gravity) wall and second is the serpentine screen wall. The retaining wall block to be re-used is from the existing ditch-line landscaping ; re: CD-101 description ‘Remove Retaining Wall and Vegetation’, also reference: Key Note 11 on CD-101, which states ‘ALL RETAINING WALL BLOCKS SHALL BE SALVAGED AND RE-USED FOR RETAINING WALLS DETAILED ON C-501’ [should be C- 510]. See addendum 2.

Question 20: New Wall on Exterior of Building (Concrete/Masonry); How high will the new wall be?

Answer 20:

There are two walls on the East side of the building. The first is a low (gravity) wall; re: Detail C4/C-510. We expect this wall to not exceed 28”; however, final height will be determined by depth of swale between existing and new building and final grading. The second wall (serpentine screen wall) is 6’ tall above finished grade.

Question 21: New Wall on Exterior of Building (Concrete/Masonry); Assuming it will be a freestanding wall, will there be a level pad, or will it be installed on paving?

Answer 21:

There are two walls on the East side of the building. The first wall is a low (gravity) wall re-using existing landscaping retaining wall block; re: Detail C4/C-510. The block rests on a 4” minimum level compacted stone base. The second wall is a masonry screen wall; re: Details C1, C2, C3/C-510. Detail C3 illustrates the wall on a 36” deep concrete ‘grade beam’ foundation.

Question 22: Data & Telecom; Is there a specific manufacturer for the Cat 6 cabling?

Answer 22:

No. The specifications provide minimum performance requirements.

Question 23: Drawings (T-501 & T-502) only show what the floor location “AV” is to get.

There is nothing that indicates what the following symbols (that are on drawing T-101.

AV1, AV2, AV3) are to get in regards to the cabling. Please advise?

Answer 23:

These are empty conduits and backboxes for GFGI cabling.

Question 24: Please clarify what type of gate: Options: Cantilever, Roll gate or double swing gate?

Answer 24:

The gate shall be a cantilever sliding gate as shown on sheet C-120, C121, and Detail C1 & C2 on sheet C-508.

Question 25: Dwg C-121 / fence plan – bid options indicates a 24’ ‘sliding’ gate as a component of bid option #2. The details provided on C-508 / gate details (bid option #2) don’t appear relevant to the gate depicted on C-121.

- Is the gate to be a rolling or cantilever type sliding gate?

- The C3 / C-508 gate latch detail appears to be for a swing gate rather than a sliding gate

- If this is a rolling gate, is a concrete strip required for the rollers when the gate is in the open position?

- Please clarify the dimensions indicated on the C1 / C-508 manual slide gate detail

Answer 25:

The gate shall be a cantilever sliding gate as shown on sheet C-120, C121, and Detail C1 & C2 on sheet C-508. No concrete is necessary, as this is not a rolling gate. The nominal opening for the road is a minimum of 24 feet wide. The gate opening may be up to a maximum of 35’ wide due to skew location across the access road. Contractor to verify exact dimensions prior to ordering and installing the gate.

Question 26: Please verify the lf of the north fence section (base bid 189lf / bid option #2 144lf + gate?)

Answer 26:

The base bid north fences section is 189 lf and the bid option #2 north fence length is 154 lf plus the 24 ft gate, as shown on C-120 and C-121.

Question 27: Is keynote 3 on C-120 & C-121 re: temporary fence relevant only to the existing security fence to be removed or is it a requirement that the entire construction site be enclosed / provided with this temporary fencing

Answer 27:

Temporary fence should be installed as indicated on Sheet C-120 and C-121. Security Fence Installation Phasing notes indicate the temporary fence will be installed on Phase 2 and removed in Phase 5. The entire construction site will not be enclosed with temporary permanent fence. Grading and Utility work should be completed prior to the new permanent fence installed and commissioned as shown on Sheet C-120 and C-121.

Question 28: Is the ground cover ‘band’ indicated at the north side of the facility to be the ‘new gravel mix’ indicated in the legend?

Answer 28:

The ‘band’ around the north side of the building shall be ‘new gravel mix’ as shown in CL-001, CL-002.

Question 29: Does a successful implementation of the erosion and sediment control plan satisfy all of the base (and other AHJ) requirements?

Answer 29:

That is the intent of the design, and the plans & specifications have been coordinated with the base environmental office. However, it is the Contractors responsibility to meet the environmental requirements, rules, and regulations for the construction site.

Question 30: Is there any interest by the base in salvaging the lights and pole shown to be removed on CD-101/ site demolition plan?

Answer 30:

Yes. See Addendum 2. Keynote 12 will be added to Sheet CD-101 noting to salvage, and turn over to the Government, all demolished light poles and fixtures. Also Reference Spec Section 01 00 00 (page 20), para. 1.37 B. that notes “All salvage property removed and not reinstalled under this Contract shall be returned to the Government at a place on base designated by the Contracting Officer, or properly disposed of when directed by the Government.”

Question 31: As this is not a unit price contract, is keynote 2, CD-101 re: asphalt removal paid for by square yards relevant?

Answer 31:

This is not a unit price contract. CD-101 keynote 2 will be changed. The keynote shall read

“PAVEMENT REMOVAL IS INCLUDED IN THE FIXED PRICE WITH A NOMINAL THICKNESS

OF 4” OF ASPHALT OVER 10” BASE MATERIAL. CONCRETE REMOVAL MAY BE

NECESSARY TO TIE TO THE EXISTING CONCRETE PAD. CONTRACTOR SHALL SAW A

STRAIGHT LINE TO ABUT NEW CONCRETE. NO SEPARATE PAYMENT WILL BE

COMPLETED FOR PAVEMENT REMOVAL REGARDLESS OF DEPTH.” See Addendum 2 pending.

Question 32: During the site walk, we noticed a sanitary lift station near the 299 LF (Running North to South) of sanitary sewer pipe that is to be removed. The drawings do not show this lift station. Will this lift station need to be removed along with the 299 LF of sanitary pipe?

Answer 32:

Sheet CD-101 Shows the 299 lf of sanitary sewer pipe being removed but not existing lift station manhole. The lift station manhole shall be adjusted to the height shown on the utility table on

CU-101.

Question 33: 2. Please clarify if there is a place on Peterson Air Force Base for disposal of the following materials:

a. Topsoil with organic material

b. Unusable fill

c. Structural Concrete Including reinforcing

d. Site Concrete

e. Asphalt

Answer 33:

No there is no specific place on Peterson AFB to dispose of the above mentioned materials.

There are many spec sections that identify the disposal of materials from the job site, to include 01 00 00 (para 1.37 A, 1.58 B), 01 41 19, 01 42 00 (para 5.2 B), 02 41 19, 31 10 00 (para 1.3 A and 3.6 A), 31 20 00 (para 3.18 A). Spec Section 01 52 00 para 1.3 B. 8., Construction Waste Management Plan, does note “Procedures for recycling/reuse program to divert a minimum of 75 percent (by weight) of construction and demolition waste from landfill disposal, including waste resulting from demolition of any existing site paving scheduled for demolition; any site paving is required to be disposed of off base at a recycling facility or ground on site and reused as granulated fill on site.” Dispose of all items mentioned in accordance with all applicable Federal, state, or local laws, ordinances, and regulations.

Question 34: Sheet CG-101 & CG-102 Site grading plans show proposed site grades.

However, there is not a sheet that shows the existing site grading. Please provide an existing site grading plan. This is for cut and fill purposes.

Answer 34:

The existing site grading is shown on CG 111.

Question 35: Will escorts be provided & paid for by the government?

Answer 35:

Yes. The Government will provide escorts as required for this project. Ref. Spec Section 01 00 00 para 1.61 L. and 01 60 00 para 1.5 C.

Question 36: Sheet CD-101 Keynote 2 States that the removal of the asphalt will be paid by the square yards. This is not listed in the unit pricing on SF1442. Will this be part of this contract?

Answer 36:

This is not a unit price contract. CD-101 keynote 2 will be changed. The keynote shall read

“PAVEMENT REMOVAL IS INCLUDED IN THE FIXED PRICE WITH A NOMINAL THICKNESS

OF 4” OF ASPHALT OVER 10” BASE MATERIAL. CONCRETE REMOVAL MAY BE

NECESSARY TO TIE TO THE EXISTING CONCRETE PAD. CONTRACTOR SHALL SAW A

STRAIGHT LINE TO ABUT NEW CONCRETE. NO SEPARATE PAYMENT WILL BE

COMPLETED FOR PAVEMENT REMOVAL REGARDLESS OF DEPTH.” See also the answer to question 31 above. See Addendum 2.

Question 37: Has a borrow site on Peterson AFB been designated for suitable fill materials for this project?

Answer 37:

No.

Question 38: Confirm that commissioning of the facility will be conducted by a third party commissioning agent engaged by the government and paid by the government.

Answer 38:

The Contractor has commissioning planning requirements per the specifications. See Section 01 90 00 and 23 05 93. The A-E will, as part of their construction inspection services, provide the third party or internal commissioning agent (paid for by the Government).

The Contractor(s) providing and/or installing the equipment and systems are required to participate fully in the Commissioning Process and complete testing, adjusting, and balancing.

The A-E will, as part of their construction inspection services, provide the third party or internal commissioning agent. Equipment Startup Procedures and Contractor Post-startup Testing (including TAB, Control Contractor Point-to-Point Testing and Control Contractor Sequence Checkouts) will be successfully completed, and fully documented prior to initiation of Functional Performance Procedures and Integrated System Procedures. See specification sections 01 90 00 and 23 05 93.

Specification Section 01 81 13.13 para 3.1 A identifies the Contractor shall provide Fundamental Commissioning of the Building Energy Systems that includes verification that the building’s energy systems are installed, calibrated, and perform according to the Government’s project requirements, basis of design, and constriction documents.

Question 39: Please consider reducing submittal review period by the government to 14 calendar days. This request is based on the 365-calendar day project schedule seemingly short for this project.

Answer 39:

The submittal review period will not be reduced. However, the government reviews and turns the submittals as quickly as they can. Which is usually under the 14 days. What we have seen is the submittals that take longer, they were not properly reviewed by the contractor for quality control, and were rejected (sometimes multiple times) for not following the procedures is Section 01 30 00, i.e. Not clearly identifying pertinent products or models, or not modifying drawings and diagrams to delete information which is not applicable to the work.

Question 40: I have a question regarding air barrier testing requirements. I have not seen anywhere where the plans specifically asks for air barrier testing but have read the following.

"Facilities will be designed as permanent construction in accordance with the DoD Unified Facilities Criteria (UFC) 1-200-01, General Building Requirements and UFC 1-200- 02, High Performance and Sustainable Building Requirements."

In the past this requirement has required air barrier testing. Are you requiring air barrier testing?

Answer 40:

Air Barrier Testing is required per UFC 1-200-02 and ASHRAE 189.1, Section 10.3.1.2 respectively.

Question 41: Div. 05 Structural Steel: Concerning the requirements of the Specifications concerning AISC Steel Fabricator and Erector, has the government done any research to show that minority, disabled veteran owned, women owned, 8A, etc. small businesses have the AISC qualifications (which are extremely expensive)? If there are no SBs that meet these requirements, what is the governments rationale for excluding businesses that have provided these services to Colorado Springs for over 30 years. We are striving to provide a high quality project, while being good stewards of the Governments money.

Answer 41:

Per the solicitation notice - this project is a TOTAL Small Business set-aside. The government has done adequate market research to justify setting the project aside for small businesses. Per FAR 17.902(b), a subcontracting plan is not a requirement for this project. Just because the contract is set-aside for a Small Business contractor does not prevent a Large Business from being utilized as a Sub-Contractor on this requirement.

Question 42: Specification Section 01 00 00 1.28F. The Contract Schedule will include closeout. The schedule of Values determined for each division will include line items for payment to include the following (as applicable):

a. 1. O&M Data and Manuals ($100,000)

b. 2. Manufacturer’s services (i.e., training for equipment use) ($10,000)

c. 3. As-built drawings (Preliminary = $45,000, Final = 30,000)

d. 4. SWPPP site log ($10,000)

e. 5. DD Form 1354 data ($10,000)

f. 6. Warranties ($95,000)

g. 7. Punch-List Items ($100,000)

Just confirming that it is intended to withhold $400,000 in project payments until these items are completed.

Answer 42:

That is correct. The Government may withhold the amount specified for each item until it has been completed per the specifications.

Question 43: Being adjacent to, but outside of the airfield, are there any requirements for

FOD?

Answer 43:

Reference Section 01 00 00, para. 1.35.A. The Contractor shall maintain the construction site in as clean and orderly condition as possible. Site cleanup shall be conducted daily. All refuse and/or salvage material shall be gathered and disposed of periodically to maintain the site in this condition. The roadways to and from the site must also be kept clean from rocks, mud, and dirt, caused by vehicle entering and leaving the site. See Section 01 00 00, para. 1.57.B. Gravel, sand and concrete shall be contained within vehicles to prevent spillage. Tarpaulins must be fastened over load before entering surrounding streets. Removal of any materials dropped or blown off vehicles shall be the responsibility of the Contractor. Refer also to Section 02 41 19 para. 3.4.B. Conduct demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

Question 44: Are there any toxic or hazardous materials on site?

Answer 44:

There are no known toxic or hazardous materials on site.

Question 45: Has the site been cleared of UXO?

Answer 45:

This site is clear of all UXO.

Question 46: As this site is located outside of the airfield protected area, are there any FAA or airport rules and regulations that will apply to the execution of this project?

Answer 46:

Contractor is required to complete the FAA Form 7460-1 permit. See Section 01 00 20, para.

1.5. The permit may require additional requirements such as lowering cranes at the end of the day and providing a flag on the crane.

Question 47: Is there a utility cost to be paid for by the contractor for the following utility items, or will they be provided at no cost to the contractor:

a. Water

b. Electric

c. Natural gas

Answer 47:

There is no charge for the water and electric, provided it is conserved and reasonable construction amounts are used. The contractor is responsible for installing temporary service outlets, as necessary, at its expense in accordance with the clause entitled “availability and use of utility services” (FAR Clause 52.236-14). See also Section 01 00 00, para. 1.12 A. and 1.42.

B. Natural gas would be available once the new facility is connected. See also answer to question 16 above.

Question 48: For the sanitary sewer and water utility detail the Colorado Springs Utilities (CSU) details are referenced, however the attached plan details do not match the CSU details. Are we to follow the CSU details that are typical for this work?

Answer 48:

The use of Colorado Springs Utility details for this work is acceptable.

Posted Date: 10 August 2020

Question 49: Is the AV cabling under the Div 27 scope of work or is it being done by the AV Contractor? The drawings (T-501 & T-502) only show what the floor location “AV” is to get. There is nothing that indicates what the following symbols (that are on drawing T-

101) are to get in regards to the cabling:

- AV1

- AV2

- AV3

Answer 49:

These are empty conduits and backboxes for GFGI cabling. Please see answer to question 23.

Question 50: Drawing T-601 shows a 96 Strand SM Fiber and a 100 pair copper cable that needs to be ran from Telecom Room 114 (Space Control Facility) to Building 2025, what is the distance for this run including the service loops required in each CMH along the way? The drawings are not to scale and they do not show the number of CMH’s indicated

Answer 50:

Exact routing of new fiber and copper cables in existing ductbank and manhole system must be coordinated with 21st base comm. Contractor to assume 2500 LF (plus required service loops indicated) of copper and fiber cable routing from Comm Room 114 (Space Control Fac) to B2025 Main Comm room through new and existing handhole/manholes

(5) as shown on T-601.

Question 51: Drawing T-601 shows a 48 Strand SM Fiber and 200 pair copper that needs to run between existing CMH’s and splice on both sides to the existing fiber and copper that is in place.

a. What is the distance for this run including the service loops required in each CMH along the way? The drawings are not to scale and they do not show the number of CMH’s indicated.

b. How many strands is the existing fiber that the new one is going to splice to?

c. How many pairs is the existing copper that the new one is going to splice to?

Answer 51:

a. Contractor to assume 800 LF of copper and fiber cables (plus required service loops indicated). T601 does show number of manholes/handholes.

b. Existing fiber strands match number of new fiber strands indicated as 48 strands.

These are estimated strand counts and must be verified prior to cut over.

c. Existing copper pairs match number of new copper pairs indicated as 200 pair.

These are estimated pair counts and must be verified prior to cut over.

Question 52: Specifications Sections: 01 41 00 - 1.3 and 04 20 00 - 3.10 (Masonry) S-002.

014100-1.3 states Inspections or testing performed as part of the Contractor’s operations shall be included as part of the Work.

Section 042000 – 3.10 states Contracting Officer (CO) will engage special inspectors to perform tests and inspections and prepare reports.

Please specify the tests and inspections that CO engaged Special Inspectors will perform.

Answer 52:

See Addendum 3 for change to spec section 04 20 00, para 3.10 A. from change “Contracting Officer” to “Contractor”. Based on the Contractors testing conducted, results, and quality control process, the Contracting Officer will determine if they choose to do additional testing. FAR 52.246-12 allows the government to perform inspection and testing of construction.

Question 53: Specifications Section 01 50 00 – 3.1 A4 and A8. Is the GC responsible for irrigating newly seeded disturbed areas?

Answer 53:

Yes. See specification section 01 56 10, para 1.6 A.1. See also Spec section 26 05 43, para 3.4 D. to restore disturbed areas. Water as needed to restore the disturbed area.

Spec section 32 92 00, para 1.7 A.1 & 2. states temporary watering is required to achieve seed establishment.

Question 54: Drawing C1/CU-102 and Specifications Section 22 11 13 2.8 to 4. Is the proposed fire hydrant location approved by the Base Fire Department?

Answer 54:

The drawings have been reviewed with regard to the location of the waterline utilities and fire hydrants.

Question 55: Sheet C-510/C3. Where is the typical CMU screen wall located on the site?

Answer 55:

See sheet CL-001 and CL-002 (addendum 2 drawings). It is noted as a 6’ CMU Block serpentine wall on the NE corner of the building.

Question 56: Section 018113.13 – 3.1 states GC is responsible for some commissioning.

Section 016500 – 1.7B states that a Government Commissioning Authority (CA) has been retained to plan and coordinate the commissioning process for this project.

Who is responsible for the final commissioning of all SCF systems?

Will a Government CA be involved? If so, please provide the responsibilities of Government’s CA’s.

ALTERNATIVELY TO ABOVE:

Please confirm that the Prime is responsible for all system commissioning and the role of the Government’s CA is oversight and quality assurance.

Answer 56:

See answer to question 38 above. Specification Section 01 81 13.13 para 15 specifies the Contractors participation requirements in the commissioning as well as section 01 90 00.

The Government will have a Commissioning Authority to coordinate the process, but it is ultimately the Contractors (Prime) responsibility to ensure the commissioning is completed all the requirements are met.

Question 57: Sheet S-001, C-501. Sheet S-001 calls for 4500 psi concrete for SOG, while drawing C2/C501 calls for 4000 psi. What is the correct psi for the SOG concrete application?

Answer 57:

Interior slabs and equipment pads should follow S-001 requirements, exterior sidewalks and other miscellaneous structures not detailed in the structural plans should follow the C-501 requirements. The psi for concrete for SOG will be governed by structural as shown on Sheet S-001 (4500psi).

Question 58: C2/C501 and A6/S501. Two equipment pad details are provided in the drawing set. Is each one to be used in a specific location? If so, please specify the location(s) for each set. Or does one set of drawings govern? If not, Bidder requests that irrelevant set be removed from the package to mitigate errors in the field.

Answer 58:

Reference Detail C2/C-501 for Concrete Pad (Base Bid) at South side of new building.

Reference Detail A6/S-501 for (3) Equipment Pads shown on sheet S-101 (Key note 6).

Question 59: Detail E2/S503 shows a slotted drain. Where is the slotted drain required?

Answer 59:

Reference Detail E2/S-503, Notes 1 & 2 for location and required coordination. Reference sheet S-101 Foundation Plan for extents of recessed slab for raised access flooring. The sub-grade piping shall extend a minimum of 1’-0” past the limits of the recessed floor slab on the South side of the new building. Connect to sub-grade drainage; re: sheet CG- 101 for Civil roof-drain piping.

Question 60: Sheet S-101. Dimensions of the dropped slab area are not shown on structural plans. Please provide the dimensions of the specified slab.

Answer 60: Depressed slab dimension added to sheet S-101. See Addendum 3.

Question 61: Specifications Section 01 81 13.13 - 1.6C. requests material cost data for furniture.

Are furniture, fixtures and equipment GFGI? Is a breakout of costs for furniture required?

ATLERNATIVE:

Please confirm that the furniture referenced in Section 01 81 13.13 - 1.6C refers to fixed furniture to include the cabinets and other built-ins that are specified in the drawings, which the contractor is required to furnish and install.

Answer 61:

See revised spec section 01 81 13.13 in Addendum 2.

Question 62: Architectural Drawing details and notes. Sheets A-121 and A-606. Will the use of steel coping be considered for parapet walls in locations that are not adjacent to ACM? Or is aluminum coping required in all parapet locations?

Answer 62:

Use Aluminum coping / cap flashing at all parapets (all around).

Question 63: Sheet A-111 (Gen. Note P). Concrete deck is referenced on sheet A-111. Is there concrete deck above the referenced rooms?

Answer 63:

Delete General Note ‘P’ from sheet A-111. See Addendum 3.

Question 64: Sheets A-111 (Keynotes 2, 3) and A-501 (Keynote 25). Sheet A-111 calls for cement plaster soffit near entries. Sheet A-501 calls for stucco soffit. Is A/E referring to the same finished material, which is stucco? If not, what material required for this application?

ALTERNATIVE:

Please confirm that A-111 refers to the application of cement plastering of the stucco material compound at the entry ways and not the material compound of cement plaster.

Answer 64:

Provide hard-coat exterior finish system on cement board and metal stud framing at soffit. See Addendum 3.

Question 65: Sheets A6 and A521. Is the elastomeric coating shown in the referenced detail acting as a vapor barrier for this assembly? Is a separate vapor barrier required at brick veneers?

Answer 65:

Provide fluid-applied membrane damp-proofing and vapor barrier at exterior face of CMU within cavity at brick veneer walls. See Addendum 3.

Question 66: Civil and Landscaping Sheets CL-001 (Legend) and G-002 (Material Legend). Is the perimeter hatching graphically depicted on civil and landscape drawings, (north, east and west sides of the building) a Granular Fill as shown on Sheet G-002 or is it a New Gravel Mix as shown on Sheet CL-001?

What are the specifications for the Gravel Mix material?

What are the specifications for the Granular Mix material?

Answer 66:

See answer to question 28 above. The gradation will be 2” to 4” river cobble rock. See addendum 3.

Question 67: Specifications Sections 01 00 00 - 1.61L and 01 60 00 - 1.5B-C. Is a Government provided Escort required for all site crews, deliveries, and personnel for every site visit?

Answer 67:

No. An escort is only required when the contractor needs to get behind the existing security fence one the east side of the site or when working on or the fence is not fully operational or intact. Normal to from and working on the site will only require the standard base access (DBIDs badge or EAL). See section 01 00 00, para 1.5.

Question 68: Specifications Sections 01 00 00 - 1.61L and 01 60 00 - 1.5B-C. Is an Escort required for previously cleared personnel?

Answer 68:

No. Unless they need to access the secure area behind the security fence on the east side of the construction site. See answer to question 67 above.

Question 69: Detail C2/C-002 and Specifications Section 01 53 00 - 1.1A, 2.2A and 3.2F.

When the current security fence is removed, will this create a security situation since the Contractor is only required to provide a 6’ mesh type fence during construction?

Answer 69:

See answers to questions 14 & 27 and addendum 2 with revised drawing C-120 and C-

121. Section 01 53 00 only applies to the general construction site fencing not to the security fencing. The security fence is required and identified on the revised drawings C- 120 and C-121 from addendum 2. Existing security is required to be maintained. (See section 01 50 00, para 3.1 A. 3.)

Question 70: Detail C2/C-002. Is there a secondary material staging and equipment laydown area on the base that the Contractor can utilize in the performance of this work?

Answer 70:

See answer to question 15.

Question 71: Specifications Section 01 00 00 - 1.12A. This section states that water and electric utilities are available for Contractor use during construction.

Please confirm that reasonable use of water and electric utilities are available for construction use at no cost to the contractor (with exception to temporary outlet and meter installation costs)?

Answer 71:

Correct. See answer to question 16 and 47.

Question 72: Specifications Section 01 00 00 -1.12A states that government-operated utilities will be furnished to the contractor without charge where existing outlets are available. FAR Clause 52.236-14 states that unless otherwise provided in the contract, the amount of each utility service consumed shall be charged to or paid for by the Contractor. Will the contractor be charged for construction related utility costs?

Answer 72:

There is no charge for the water and electric, provided it is conserved and reasonable construction amounts are used. See answer to question 16, 47, and 71. Contractor will provide backflow preventer and any other connections needed. Sewage and Gas are not available (until connections are made for new building). Contractor will ensure utilities are shut off at the end of the day or when not in use.

Question 73: 01 30 00 - 1.3A. The Contracting Officer can request additional submittals.

Is there a comprehensive list of the additional submittals available to the bidders?

Answer 73:

See spec 01 30 00 for the AF Form 66 (Schedule of submittals) which also includes timelines. Please note this is a general schedule and the contractor is to review the AF66 for which submittals pertain to this project, and it due 30 days after the Notice to Proceed. Section 01 30 00, para 3.1 A. states: “The CONTRACTOR shall submit all items listed on the Submittal Schedule (AF Form 66) or approved equivalent and as specified in the other sections of these specifications. The CONTRACTING OFFICER may request additional submittals in addition to those listed when deemed necessary to adequately describe the work covered in the respective sections.”

Question 74: 01 30 00 - 1.3C. Is an electronic submittal process acceptable to the Contracting Officer?

Answer 74:

Yes, see answer to question 13. Government will provide the electronic submittal system.

Question 75: Specifications section 01 52 00 - 3.1H requires a minimum of 75 percent of construction wastes be recycled or salvaged and diverted from landfill. Specifications section 01 74 19 - 1.3A requires a minimum of 60 percent with a project-specific goal of 75 percent by weight of the project construction waste and demolition debris/waste be diverted from the landfill. Is 75% a goal or minimum requirement for this project?

Answer 75:

Divert a minimum of 60 percent with a project-specific goal of 75 percent by weight of the project construction waste and demolition debris/waste from the landfill, as noted in section 01 74 19, para 1.3 A.

Question 76: Sheet E-401. Notes 11 and 12 conflict with COMMUNICATIONS EQUIPMENT ROOM FITTINGS 27 11 00 2.4 Power Strips. Please clarify this requirement since NEMA L21 is used to support 208V NEMA L6 supports 250V.

Answer 76:

There is no conflict. Provide devices meeting requirements as per plans and specifications. These devices are rated up to 250V.

Question 77: Sheet T-201. UPS and Network Switches are (GFGI). Will the UPS operate at 120/240 to support the power strips? If the UPS units are 120/240, a different power strip is required.

Answer 77:

Power strips to be provided as specified.

Question 78: Sheet T-201. UPS and Network Switches are (GFGI). Will the power strips be plugged into the UPS units?

Answer 78:

Power strips provide options for UPS and non-UPS connectivity. Power strips to be provided as specified.

Question 79: Sheet T-401. NIPR, SIPR, JWICS and SGN occupy the same space. Sharing a cable tray upon entering the room does not appear to conform to current TEMPEST requirements. Minimum distance between ‘red and black’ is 5cm or 2in. Please confirm if 1-1/4” interduct in 4” pipe will meet the requirement.

Answer 79:

Cables must be bundles and dressed to maintain a 5cm separation within the cable tray.

Question 80: Sheet CD-101. Please confirm that two of the five light poles, as indicated, have already been removed from Stewart Ave location.

Answer 80: See Addendum 2 sheet CD-101.

Question 81: There is an unidentified cable running under Stewart Ave through the 24” RCP and appears to continue to cross under Eldorado aka Seidler St through the 24” RCP. Please confirm if this will be rerouted by USG before the project begins.

If the Government will not be rerouting the cable, shall the contractor remove/demolish up to the edge of project boundary?

Answer 81: It is a 1” drip irrigation line. It may be demolished or abandoned in-place.

Cable to be verified and protect in-place in the culvert until instruction on how to proceed.

Question 82: Specifications Section 01 60 00 - 1.3. Please confirm if there is an existing area on base that could be used as a ‘borrow site’ for soils. If none currently exists, please confirm if it would be possible to create a ‘borrow site’ in the open area to the northwest of the project.

Answer 82:

See answer to question #37, No there is not an existing borrow site. A borrow site will not be created on base outside of the construction boundaries.

Question 83: Specifications Section 01 60 00 - 1.3. Please confirm if it is acceptable to create grindings from the demolition of Stewart Ave as base material for installation of optional access road.

Answer 83:

See Answer 33. It is acceptable. Grindings must meet specifications and CDOT 2017 Division 700 standards for reuse as base material. Any extra material must be properly disposed of IAW specifications.

Question 84: Please confirm if any of the sensor cables on the security fence designated to be demolished can be salvaged and integrated into the new security perimeter fence.

Answer 84:

Provide new sensor cables. Do not re-use demolished and/or salvaged cables nor fittings.

Question 85: Specifications Sections 01 00 00, 01 45 10, 01 06 00. Can the roles of Contractor Quality Control and Site Safety and Health Officer be performed by the same person if the minimum qualifications are met for each function?

Answer 85:

Yes. See section 01 00 00, para 1.65 B.3., and 01 45 01, para 1.9 B.1. However it is not recommend at least at the beginning of the project due to the amount of deliverables;

1) Please note minimum qualifications per specifications;

Safety Officer - The Contractor shall designate in writing a qualified employee OSHA Trained under 1926.65 responsible for the overall supervision of all accident prevention activities. WILL REMAIN ON SITE WHILE WORK IS PERFORMED

QA – See Specs 014510-6 para 1.9.B

2) Preliminary deliverables; (See AF66 for submittal requirements/timelines)

Safety Officer - The Contractor shall develop a Job Safety and Health Plan for presentation at the precon conference with requirements listed in spec 010600-2 para 1.4.A.3.2

QA - The Contractor shall furnish for review by the Government, Not Later Than 15 days after receipt of Notice to Proceed for the basic contract, the Interim Contractor Quality Control (CQC) Plan.

Question 86: Specifications Section 07 52 16. Can the qualifications for roofing system installer be waived if the manufacturer can provide sufficient training to contractor personnel to ensure warranty provisions are met?

Answer 86:

No, contractor will have a minimum of 5 years with SAME OR SIMILAR roofing materials.

Question 87: Specifications Section 01 30 00 - 3.14C. Is Web based 3DI Construction Management Software required for this project?

Answer 87: No. See answer to question 13 & 74. Government will provide the electronic submittal system.

Question 88: For straight bid proposals, generally, pricing is not received by subcontractors until the same day of the proposal submission. This short amount of time does not allow offerors to mail-in proposals. It requires a person to be at Peterson AFB/bid repository to write/print the numbers and turn in the proposal. Due to the increasing cases of COVID-19 and following the DoD social distancing guidelines, would the government consider allowing an emailed proposal or a DoD Safe Drop-Off with a virtual bid opening? This would ensure the safety of offeror personnel and eliminate the potential of spread of COVID-19 to government personnel and other citizens.

Answer 88: Please refer to section 00100: Instructions to Bidders; paragraph 5. The area for the bid opening is large enough to accommodate proper social distancing and a bid repository has also been provided in case interested contractors wish to drop off their bids early. The Government will not accept emailed proposals nor will the bid opening be conducted virtually.

Question 89:

Answer 89: