012300_fl_-_additive_bid_items_(abi).pdf

National Guard Readiness Center Wilmington, North Carolina Addendum 24 August 2017

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SECTION 012300 – ADDITIVE BID ITEMS (ABI)

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes administrative and procedural requirements for ABI’s.

1.3 DEFINITIONS

A. ABI: An amount proposed by bidders and stated on the Bid Form for certain work defined in the bidding requirements that may be added to or deducted from the base bid amount if the Owner decides to accept a corresponding change either in the amount of construction to be completed or in the products, materials, equipment, systems, or installation methods described in the Contract Documents.

1. ABI’s described in this Section are part of the Work only if enumerated in the Agreement.

2. The cost or credit for each ABI is the net addition to or deduction from the Contract Sum to incorporate ABI’s into the Work. No other adjustments are made to the Contract Sum.

1.4 PROCEDURES

A. Coordination: Revise or adjust affected adjacent work as necessary to completely integrate work of the ABI into Project.

1. Include as part of each ABI, miscellaneous devices, accessory objects, and similar items incidental to or required for a complete installation whether or not indicated as part of ABI.

B. Execute accepted ABI’s under the same conditions as other work of the Contract.

C. Schedule: A schedule of ABI’s is included at the end of this Section. Specification Sections referenced in schedule contain requirements for materials necessary to achieve the work described under each ABI.

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PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 SCHEDULE OF ADDITIVE BID ITEMS

A. ABI No. 1: Controlled Waste Handling Facility

1. Base Bid: Provide underground electrical, water distribution, and all supporting utilities to a location designated for a fabricated storage building as indicated on Drawings.

2. ABI: Provide a pre-engineered pre-fabricated storage building for the purpose of storing chemical waste and hazardous materials, including the concrete base pad and all required utilities, building systems and internal components as indicated on Drawings and as specified in Section 133423.10 “Fabricated Storage Building."

B. ABI No. 2: General Purpose Training Bays

1. Base Bid: Provide the Readiness Center as indicated on drawings without the General Purpose Training Bays and adjacent Vestibule.

2. ABI: Add the General Purpose Training Bays, Vestibule, all utilities, all building systems and components as identified on Drawings and in the related specifications.

C. ABI No. 3: Operational Pavement Behind the Readiness Center and Access Drives

1. Base Bid: Provide the two access drives from Infantry Road to a point of five (5) feet beyond the security gates behind the Readiness Center constructed as asphalt pavement as indicated on Drawing CS-200. Provide the continuation of the access drives and all the Operational Pavement areas behind the Readiness Center as gravel base pavement with concrete curbs as indicated on Drawing.

CS-200.

2. ABI: Change the Operational Pavement behind the Readiness Center to be constructed entirely of concrete pavement as indicated on Drawing CS-210.

Construct the entire length of the two access drives to and from the paved areas behind the Readiness Center as concrete as indicated on Drawing CS-210.

D. ABI No. 4 : Ground Faced CMU :

1. Base Bid: Painted exposed CMU as indicated on Drawings in, Assembly Room 124 132 and Corridor 158B (to elevation 109’-4” in Room 158B) and as specified in Section 042000 “Unit Masonry", and Section 099123 “Interior Painting”.

2. ABI: Change painted exposed CMU to Ground Faced CMU as indicated on Drawings and as specified in Section 042000 “Unit Masonry."

E. ABI No. 5: Resinous Matrix Terrazzo:

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1. Base Bid: Polished Concrete as indicated on Drawings and as specified in Section 033543 “Polished Concrete Finishing."

2. ABI: Change Polished Concrete to Resinous Matrix Terrazzo Flooring as indicated on Drawings and as specified in Section 096623 “Resinous Matrix Terrazzo Flooring."

F. ABI No. 6: Resinous Flooring

1. Base Bid: Provide sealed concrete floor finishes as indicated on the Drawings.

2. ABI: In select areas identified on the Drawings provide resinous flooring and base as specified in Section 096723 “Resinous Flooring”.

G. ABI No. 7: Vehicle Loading Ramp

1. Base Bid: Do not provide a military vehicle loading ramp as indicated on the Drawings. Refer to Layout Plan Base Bid Drawing CS-200.

2. ABI: Provide a military vehicle loading ramp including additional structures, access pavement, fencing, gates and protective bollards as indicated on Drawing

CS-210.

H. ABI No. 8: POV Parking, Additional POV Parking, Concrete Surface MEP Parking, and site work.

1. Base Bid: Provide improvements to the existing POV parking area as indicated on Drawing CS-200. Scope shall include only restriping existing asphalt POV parking as shown. Provide gravel MEP paving with concrete curbs as indicated.

Provided striping on existing MEP parking as shown. Provide storm water control systems including linear sand filter as indicated.

2. ABI: Provide additional asphalt parking, sidewalks, and curbs for the expansion of the POV parking as shown on Drawing CS-210. Provide milling, fill and restriping of the existing parking to coordinate with the expanded POV. Provide upgrade from gravel base to concrete paving for the MEP parking as indicated on Drawing CS-210. Provide additional site work and storm water system including the additional sand filter adjacent to the expanded POV parking.

I. ABI No. 9: Landscaping

1. Base Bid: Provide landscaping features and elements as indicated on Drawing L- 100.

2. ABI: Provide additional landscape and site elements including flagpoles and sidewalks as shown on drawing L-110 and as specified.

J. ABI No. 10: Existing Facility Foundation Demolition

1. Base Bid: Existing Facility Concrete Foundations. Demolish the existing building concrete foundation only to the extent shown as indicated on the Demolition Drawings. In summary, demolish only the first floor concrete slab and the top portion of the existing building basement walls to the depth below grade as indicated. Demolition shall include pulverizing the portions of the slab and foundation as indicated and leaving the material as fill.

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2. ABI: Demolish the entire existing first floor concrete slab and all concrete basement walls and foundations and remove all debris from the site. Provide fill as indicted on the Drawings.

END OF SECTION 012300