Attachment 11 - Questions and Answers.pdf
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- Attached to
- Repair Airfield Apron Federal contract opportunity
- Solicitation number
- FA667521R0016
About this file
This solicitation requests proposals for the phased repair and alteration of an airfield apron and other infrastructure improvements at NAS Fort Worth JRB in Fort Worth, Texas. Work includes temporary fencing and gates, line painting, pavement restoration, removal of sun shade structures, stormwater improvements including trench drains, underground ductbanks, directional borings for utilities, aircraft tie-downs, and environmental protection devices. The contract type is single award firm fixed price between $5 million to $10 million. The NAICS code is 237310 with a size standard of $39.5 million. The site visit is July 7, 2021 and proposals are due July 23, 2021. The estimated construction schedule will be determined at award. This 100% small business set-aside is issued by the Department of the Air Force Reserve Command.
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Solicitation: FA667521R0016, Repair Apron Attachment 11 ‐ Questions & Answers
Q1:
Section B of the solicitation has 2 line items: 0001 and 0002, and the description of both line items refers to attachment 1‐“CLIN ID Sketch” and A/E Design Drawing and Specifications. Attachment 1, “CLIN ID Sketch” does not clearly identify what work is included in each CLIN (only listing highlighted items as “minor construction”. After reviewing the AE Design Drawings, the only CLIN identification that we could find in the plans is sheet CU104, where it identifies that the Storm Pipe shown on this sheet is to be included in CLIN 002. Specification section 00 22 13.00 20 lists CLIN’s 0001‐0003, and identifies the work to be included in each CLIN, but there is no CLIN 0003 in the solicitation section B. Can you please clarify what work is to be included in each CLIN?
A1:
“Attachment 1 ‐ CLIN ID SKETCH” renamed “Attachment 1 ‐ CLIN 0002 ID SKETCH” for clarity. The contract numbers on the construction drawings are for reference only. They represent the A&E contract numbers only. The conduit duct banks highlighted in yellow on “Attachment 1 ‐ CLIN 0002 ID SKETCH” are associated with CLIN 0002, Minor Construction. Work includes excavation, pathways, manholes, and backfill. Replacement of (concrete/asphalt) surface pavements associated with the duct bank installation should be included under CLIN 0001 (Repairs). All other work in the proposal should be in CLIN 0001, Repair.
Q2:
Which concrete specification will govern, 033000 or 321314.14?
A2:
Both specification sections apply to this project.
Spec section 033000 applies for general concrete placement for piers/footings/electrical & Com duct bank encasement.
Spec Section 321314.14 applies to all concrete work for airfield pavements.
Q3:
1. Attachment 2 – Drawings, Sheet CU104, Note #1 states, “THIS SHEET SHOWS STORM PIPING TO COLLECT ROOF WATER FROM THE SUN SHADES VIA DOWNSPOUT CONNECTIONS AS BID OPTION "CLIN 0002".” This note will be deleted via an amendment to the solicitation. See solicitation Amendment 01 and Attachment 1 ‐ CLIN 0002 ID SKETCH for items included in CLIN 0002.
2. Attachment 2 – Drawings, Sheet CI101, Note #17 states, “INSTALL CONDUCTORS FOR COMMUNICATIONS, SECURITY, AND POWER FROM THE SOURCE CONNECTION POINTS TO ELECTRICAL PANELS A, B, C AND INSTALL ALL SUN SHADE POWER AND COMMUNICATION SYSTEMS.” This note will be deleted via an amendment to the solicitation. See solicitation Amendment 01 and Attachment 1 ‐ CLIN 0002 ID SKETCH for items included in CLIN 0002.
3. An unusual sawcut in the asphalt pavement was found just outside of Air Force Building #1637 inside the project’s limits. Please provide information pertaining to the significance of these sawcuts as it relates to this requirement.
4. Attachment 3 – Specifications, Section 03 30 00 does not provide a range for the acceptable slump of concrete. Please provide clarification for a required slump range or if the slump range would be determined by the vendor. Attachment 3 – Specifications, Section 32 13 14.13, 2.12.4 provides a maximum allowable slump of the concrete at the point of placement is 2 inches for pavement constructed with fixed forms. Please provide clarification if the 2 inch slump requirement is applicable to concrete hand placements.
5. The location for epoxy coated reinforcement is not clear. Please provide clarification on the location of required epoxy coated reinforcement.
A3:
1. The storm water lines indicated in note 1 shall be included in the base bid, CLIN 0001. Lines shall terminate flush with the pavement.
2. Conductors indicated in note 17 are not part of the contract. Install conduit duct bank with pull lines.
Cap conduit per detail A7, Sheet EJ 601.
3. Saw cuts are an abandoned gate sensor loop. Demo with associated work. No need to restore.
4. For concrete under spec 03 30 00, the slump is determined through the mix design. A normal slump for a footing, pier or slab would be 3” or 4”. In section 2.5.1d it states that tolerances must meet the requirements of ACI 117. The following is from section 2.5 in ACI 117 –
2.5.1 Slump
Where slump is specified as “maximum” or “not to exceed” For all values........................................................+0 in.
Specified slump 3 in. or less ..........................–1‐1/2 in.
Specified slump more than 3 in........................–2‐1/2 in.
Where slump is specified as a single value Specified slump 2 in. and less........................ ±1/2 in.
Specified slump more than 2 in. but not greater than 4 in..................................................................±1 in.
Specified slump more than 4 in........................±1‐1/2 in.
Where slump is specified as a range........no tolerance
The following is taken from the Supplemental Report for UFGS 32 13 14.13 Table 10 UFGS 32 13 14.13 Slump Requirements by Placement Method Placement Method Maximum Slump Slipform As selected to meet edge slump limits Fixed Form 2 ins. (50 mm) Triple Roller Screed 3 ins. (75 mm) Hand Placement 3 ins. (75 mm)
5. All rebar shall be epoxy coated per specifications.
Q4:
Due to the rusting of manhole steps over the years, installing steps in manholes has become a liability issue. Are you sure you want to put steps in a manhole that will be deteriorating in a few years and possibly cause an accident? A ladder and tripod retrieval system with winch is require any way by the confined space entry regulations.
A4:
Bid Project per plans and specifications. Do not alter manholes in bid proposal.
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