B26_SQA_QAs_0003.xlsx

Sheet1

1. Flush/non-elevated floor-drain perimeter concrete repairs: 14 locations.

2. Elevated floor-dran concrete apron/perimeter repairs: 20 locations.

3. Garage-floor crack/spall: 840 linear feet.

These quantities are provided for bidding purpose to establish a common basis of estimate. Final repair quantities will be determined following the Contractor's post-award inspection.

Reinforcing steel repair, replacement, or supplemental reinforcing steel is not anticipated or included in the base scope of work. If reinforcing steel is encountered during demolition or is determined to require repair, the Contractor shall notify the Government and obtain approval prior to performing any additional work. Any Government-authorized additional work will be handled and compensated in accordance with the contract.

During the site visit, multiple floor-drain configurations and previously repaired concrete conditions were observed. Some drains are installed approximately flush with the garage floor, while other drains are elevated above the surrounding floor and incorporated into raised concrete aprons. The existing construction below and immediately surrounding these drains cannot be determined from visual observation.

The solicitation does not provide a schedule or approximate quantity of repair locations, square footage of concrete spalling, number of affected drains, or linear footage of floor cracking.

For purposes of establishing a common bidding basis, please provide the Government's approximate anticipated quantities for the following observed repair conditions:

1. Flush/non-elevated floor-dran perimeter concrete repairs: 14 locations.

2. Elevated floor-dran concrete apron/perimeter repairs: 20 locations.

3. garage-floor crack/spall: 840 linear feet.

These quantities are provided for bidding purposed to establish a common basis of estimate. Final repair quantities will be determined following the Contractor's post-award inspection.

12 Request for Unit-Price Bid Structure The solicitation presently requires one firm-fixed-price lump sum under CLIN 00010. The actual repair quantities are not defined and, under Section C, the Contractor is required to determine the extent of the required repairs through an inspection performed after award.

Because the number and extent of repair locations cannot presently be quantified from the solicitation documents, please consider revising the pricing structure to establish estimated quantities and unit prices for the following:

The Government could establish estimated quantities for bid evaluation and compensate the Contractor based upon the actual quantities authorized and completed.

Request: Please confirm whether the solicitation will be amended to replace the undefined lump-sum repair scope with an estimated-quantity/unit-price structure for the three typical repair conditions identified above.

If the Government intends to retain the lump-sum pricing structure, please provide the estimated quantities that bidders are required to use as the common basis for their lump-sum proposals. The solicitation will be amended to establish an estimated-quantity/unit-price structure for the three typical repair conditions identified. The estimated quantities for bidding purposes will be:

1. Flush/non-elevated floor-dran perimeter concrete repairs: 14 locations.

2. Elevated floor-dran concrete apron/perimeter repairs: 20 locations.

3. Garage-floor crack/spall: 840 linear feet.

13 Repair Material Cure and Return-to-Service Requirement During the site visit, bidders were advised that individual repairs are to be started and completed within the same work shift so that the affected parking space can be returned to vehicle use the following working day.

The written SOW requires repair concrete to achieve a compressive strength of at least 4,000–5,000 psi at 28 days and requires the repair material to be compatible with the existing concrete and suitable for the existing environmental conditions. The solicitation does not identify a specific repair product, minimum compressive strength required before opening a repair to vehicular traffic, or a required curing period before traffic loading.

The appropriate return-to-service period is dependent upon the selected cementitious or epoxy repair system, repair depth, ambient temperature, substrate conditions, manufacturer requirements, and the strength required prior to vehicular loading. Requiring vehicular traffic immediately following a single work shift may conflict with the manufacturer's required cure/return-to-service period for the selected repair system.

Request: Please clarify the required minimum curing period before repaired areas may be subjected to vehicular traffic.

Please confirm that repaired parking spaces may remain closed for a minimum of 24 hours after completion of the repair, or longer when required by the approved repair-material manufacturer's written instructions, before being returned to vehicular service.

The solicitation does not provide details identifying the intended geometry, elevation, reinforcement, repair depth, or underlying construction of the elevated drain conditions.

Request: For elevated floor-drain repairs, please confirm that the Contractor is required to remove deteriorated/existing repair material only to sound substrate and reconstruct the concrete apron to substantially match the existing elevation, configuration, slope, and surface profile.

Please also clarify whether any modification, replacement, adjustment, or relocation of the existing drain body, grate, drain piping, reinforcing steel, structural slab, grade beams, foundations, or other concealed construction is included in the required scope. Confirmed. For elevated floor-drain repairs, the Contractor shall remove deteriorated/existing repair material to sound substrate and reconstruct the concrete apron to substantially match the existing elevation, configuration, slope, and surface profile.

No modification, replacement, adjustment, or relocation of the existing drain body, grate, drain piping, reinforcing steel, structural slab, grade beams, foundations, or other concealed construction is included in the scope of work.

15 Limits of Concrete Removal The SOW requires the Contractor to "excavate loose, spalling concrete and cut into existing concrete to establish an area to be patched." The solicitation does not establish a specified repair depth or define how repair limits will be measured where deterioration extends beyond the initially visible condition.

Request: Please confirm that concrete removal is limited to the removal of existing patch material and/or deteriorated concrete necessary to reach sound concrete substrate.

If sounding, demolition, or surface preparation reveals deterioration extending materially beyond the Government's anticipated repair dimensions or exposes previously concealed conditions requiring additional removal, please clarify how these additional quantities will be authorized and compensated. Confirmed. Concrete removal is limited to the removal of existing patch material and/or deteriorated concrete necessary to expose a sound concrete substrate. Pavement marking restoration is limited to markings affected by the authorized repair work.

If sounding, demolition, or surface preparation reveals deterioration or concealed conditions requiring removal beyond the anticipated repair dimensions, the Contractor shall stop work in the affected area and contact the Government for inspection and approval prior to proceeding with additional removal. Any Government-authorized additional work and quantities will be documented and compensated in accordance with the terms of the contract.

16 Pavement Marking Restoration The SOW requires parking lines to be repainted "where necessary, to match existing." Existing pavement markings pass through or immediately adjacent to some anticipated repair areas.

Request: Please confirm that pavement-marking restoration is limited to markings directly disturbed by the authorized concrete repairs and that the Contractor is not required to restripe complete parking spaces, traffic aisles, garage zones, or other markings outside the limits disturbed by the concrete repair work.

The solicitation requires the Contractor's post-award schedule to identify the repair location, affected parking spaces, and anticipated repair duration but does not establish allowable garage closure areas or specific work hours.

Request: Please provide the allowable construction work hours and identify any restrictions applicable to demolition, chipping, sawcutting, dust-producing work, material placement, or other construction activities.

Please also confirm that the Government will make the required parking spaces and immediately adjacent work areas available to the Contractor for the entire demolition, repair, curing, and return-to-service period required by the approved repair-material manufacturer's written instructions. The allowable construction work hours are 8:00 p.m. to 6:00 a.m on weekdays or on weekends. Construction activities, including demolition, chipping, sawcutting, dust-producing work, material placement, and related repair activities, shall be performed within these hours.

The Government confirms that the required parking spaces and immediately adjacent work areas will be made available to the Contractor for the duration necessary to complete the demolition, repair, curing, and return-to-service activities in accordance with the approved repair-material manufacturer’s written instructions. Parking space closures and repairs shall be phased. The Contractor shall not close all affected parking spaces simultaneously and shall coordinate the phasing and closure schedule with the COR.