W9124V19B0002_Amendment_0001.pdf

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Attached to
Construct Aircraft Apron- MTANG Federal contract opportunity
Solicitation number
W9124V19B0002
Issued by
Department of the Army Montana Army National Guard

About this file

This document is an amendment to a solicitation for the construction of an aircraft apron at the Montana Air National Guard in Great Falls, Montana. The solicitation number is W9124V19B0002 and is being conducted by the Department of the Army Montana Army National Guard.

The amendment provides twelve clarifications or modifications to the solicitation requirements and drawings. It specifies that existing conduits parallel to Taxiway A are to be protected in place and CLSM encased under new pavement sections. It clarifies that all new conduits shown on drawings E202 and E203 are to be provided and installed under the base bid. It modifies notes on drawings E203 and E415 regarding an existing ground pull box lid. It adjusts joint width and dowel requirements on drawing C106. It changes all junction cans for lights and signs to type L-867B. It resolves discrepancies between fence details and specifications. It removes the word "stranded" from conduit notes and modifies conduit depth details on drawing E102. It replaces proposed taxiway lights with retroreflective markers and relocates associated ductwork and components. It removes the material transfer vehicle requirement from specification 321215. It modifies the quality control staff requirements in specification 321314.

Amendment items 1-12

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FAA.P-153.pdf PDF
W9124V19B0002_Amendment_0002_SF_30.pdf PDF
Questions_as_of_22_Aug.pdf PDF
Revised_Sheet_E203.pdf PDF
52.204-24.pdf PDF
W9124V19B0002_0001_SF30.pdf PDF
CQCP_C-100.pdf PDF
Revised_Sheet_E415.pdf PDF
52.204-25.pdf PDF
Questions_as_of_16_Aug.pdf PDF
Questions_as_of_8_Aug.pdf PDF
SiteVisitSignInSheet.pdf PDF
W9124V19B0002_Site_Visit_notes.pdf PDF
Pre-Bid_Conference_Slides.pdf PDF
W9124V19B0002_MTANG_Construct_Aircraft_Apron.pdf PDF
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Text version

W9124V19B0002 AMENDMENT 0001

Construct Aircraft Apron – JKSE 169101

W9124V19B0002

AMENDMENT 0001

CONSTRUCT AIRCRAFT APRON – PROJECT JKSE 169101

Montana Air National Guard, Great Falls, Montana

Date of Amendment: August 16, 2019

1. Drawings – Sheet E102

Regarding Note #3 on Sheet E102, it was confirmed with GFIA on 8/1/19 that these existing conduits (parallel to Taxiway A) have been abandoned in place.

However, the Airport wants to maintain them and so they are to be protected in place with this project. Exact number and depths of the conduits as they transition through the site are unknown, however, from as-built drawings it is believed they are not CLSM encased. It is estimated that there are up to 6 conduits (4” PVC). They are likely located at a depth that coincides with the bottom of the pavement section (within the base course). These existing conduits are to be CLSM encased under all new pavement sections.

2. Drawings – Sheets E202 and E203

All new conduits shown on Sheets E202 and E203 are to be provided and installed under the Base Bid for the project.

3. Drawings – Sheet E203

Flag Note #22 on Sheet E203 has been modified to clarify that an extra heavy duty airport rated cover is required on the existing ground pull box. Additionally, a new Sheet E415 has been added that shows photos of the existing pull box lid, with dimensions. New Sheets E203 and E415 are included with this Addendum.

4. Drawings – Sheet C106

Delete the “3/4” MIN” dimension shown at the bottom of the Expansion Joint detail. Joint width to be between 1/2” and 5/8”, as shown at the top of the detail.

5. Drawings – Sheet C106 and Specifications – Section 321314.13

Dowels for PCC Pavement are to be of Grade 60 steel, epoxy-coated and oiled.

Other dowel material requirements are specified on Sheet C106 and in Technical Specification 321314.13, Part 2.9.1.

6. Drawings – Sheet E104

All junction cans for lights and lighted signs shall be changed to L-867B.

7. Drawings – Sheet F101 and Specifications -Section 323113

Chain Link Fence – There are pipe size discrepancies between the chain link fence details on Sheet F101 and Specification Section 323113. All pipe sizes (end posts, brace posts, line posts and rail) for new chain link fencing shall be in accordance with Sheet F101. And Section 323113, Part 2.2.6 is deleted - center rails are not required between line posts.

8. Drawings – Sheets E102 and E103

Delete the word “stranded” from Note 1 on Sheets E102 and E103. All counterpoise shall be solid copper.

9. Drawings – Sheet E102

Sheet E102, Detail A, depth of bury shall be amended to 2’-0”. The copper counterpoise shall remain 4” – 6” TYP above the top of conduit. Sheet E102, Detail C, shall be amended to show 24” depth under the shoulder pavement, requiring the shoulder conduit to bend downwards to the required depth beneath the taxiway pavements.

10. Drawings – Sheet E103

The (6) new taxiway lights located closest to the existing run-up pad, along proposed Taxiway M8 (ABI #2) are deleted and replaced in the same location with (6) L-853 Retroreflective Taxiway Markers, meeting the following requirements:

Post Height: 24” Reflective Color: Blue Mount Type: Surface Mount

Move CLSM encased PVC duct that crosses proposed Taxiway M8, associated cans, ground rods and duct makers 186.4 feet toward Taxiway A to coincide with the beginning of the taxiway fillets. Remove trench, PVC Duct and counterpoise on each side of Taxiway M8 to coincide with the relocation described above.

11. Specifications – Section 321215

The requirement for a material transfer vehicle for asphalt placement is deleted.

12. Change 32 13 14 Section 1.4 Quality Control to read as follows:

1.4.1 Contractor Quality Control Staff (QC)

a. All Contractor Quality Control personnel assigned to concrete construction are required to be American Concrete Institute (ACI) certified.

b. Submit Qualifications and resumes for petrographer, surveyor, concrete batch plant operator, and profilograph operator.

c. QC staff shall meet the requirement in specification section C-100.

d. An ACI certified inspector will be present at the paving site during all paving operations, with the exception of initial saw cutting. The QC manager is required to be present during initial saw cutting operations.

e. QC staff is required to oversee all aspects of sawing operations (sawing, flushing, vacuuming, and checking for random cracking, lighting.

END OF AMENDMENT 0001

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