PVCC 260-B0260-053 MR20001 Addendum 02 2024-03-08.pdf

335 Greenbrier Drive, Suite 205, Charlottesville, Virginia 22901 | tel: 434.245.6117 | www.wdpa.com

Charlottesville, VA

Manassas, VA

Blacksburg, VA

Hinton, WV

Myrtle Beach, SC

New York, NY

ADDENDUM NO.2

The following constitutes Addendum No. 2 for the referenced project. Bidders must acknowledge receipt of all addenda.

Be advised the bid deadline has been extended from March 13, 2024, to March 20, 2024.

Answers to pre-bid questions have been provided.

The Bid Form has been modified to account for changes in scope. See the attached revised Bid Form.

Project scope has been changed to include the replacement of glazing at select window systems at the Dickinson building. Lump sum price for A.1 has been modified to include replacement of glazing at the existing skylight system located on the west elevation.

New unit price line items for glazing replacement at window types C-1 and C-2 have been added as items A.7 and A.8 to incorporate the scope. See the replacement glazing specification as well as sketches indicating window replacement locations and approximate dimensions.

Project information

Owner: Virginia Community College System

Project Titles: Dickinson Building Repair of Settlement and Cracking Main Building Masonry Repair Project

Project Location: 501 College Dr., Charlottesville, VA 22902

IFB No.: 58897-1

Owner’s PM: Tong Wang

Owner’s Project #: #260-B1260-054; #260-B0260-053

Engineer’s PM: Adam D’Alessandro

Engineer’s Project #: #20161A; #20256

Bids Due: March 20, 2024

PREBID QUESTIONS

DICKINSON BUILDING

1. They are requesting underpinning piles to support 51.3 kips. Ram Jack’s largest capacity underpinning pile is the 3 ½” pile with guide sleeve that can support 49.0 kips. They will need an additional pile for each grade beam to make the 3 1/2” work.

The pile components specified within “Products and Materials” can achieve 51.3-kip design compression capacity.

2. For the support of the column footings, a column on each side needs a pile battered 10 degrees. We cannot do this with side load brackets. Are they able to switch these to new construction brackets?

This is likely feasible but will need to be submitted and reviewed at the shop drawing phase.

3. Specifications for helical piles call for a compression capacity of 51.3 kips, however manufacturers are stating that the maximum load a bracket can hold is 50 kips. Is this sufficient? If not, can you provide a manufacturer who has a suitable system?

The pile components specified within “Products and Materials” can achieve 51.3-kip

4. Can you confirm that the intention is to pour 5’ grade beam sections at each pile location, install piles, and then pour the grade beam sections between piles?

Confirmed.

5. Do the temporary helical piers need to meet the same strength requirements as the permanent installations? Can the temporary piers be left in place, or do they need to be removed it prior to completing the project?

Temporary helical piers can be left in place, but may need to be disengaged.

6. G0.02 requires contractor to retain a PE to provide an E&S plan and specification as applicable to contractors means and methods for executing soil disturbing work. Since there is no E&S plan can an allowance for this scope of work be provided for bidding purposes?

E&S Plan – Contractor to include price for anticipated work.

7. Is it acceptable to provide and install comparable Helicals that can achieve the ultimate load required of 102.6 kips as listed on B0.01 and shown on B5.01?

Alternative plans and designs may be feasible but will need to be submitted by a registered engineer and reviewed at the shop drawing phase.

8. For the support of the column footings, a column on each side needs a pile battered 10 degrees. We cannot do this with side load brackets. Is it acceptable to switch these to new construction brackets? Note: We are working on other options for this issue but have not found a solution.

This is likely feasible but will need to be submitted and reviewed at the shop drawing phase.

9. Note C under termination criteria on B0.01 states each helical pile shall achieve 51.3 kip design compression capacity. Our largest capacity underpinning pile is the 3 ½” pile with sleeves that can support 49 kips. Can we add an additional pile for each grade beam to make the 3 ½” work?

10. The pile components specified within “Products and Materials” can achieve 51.3-kip

MAIN BUILDING

1. The required load is unclear. It appears to be 9.6 kips allowable capacity. Can you verify that?

Confirmed.

2. Also, the borings are showing very dense layers (100 blow count) starting about 6 feet down and continues until refusal to at least 14 feet. Our only option is to pre-drill 10 ft, insert a driven pile, and grout it.

This is acceptable provided the required resistance is met.

3. Please confirm that the allowable capacity for the required load is 9.6 kips on sheet B0.01 on note 3.2.2 under Termination Criteria.

Confirmed.

4. The borings on B0.02 are showing very dense layers (100 blow count) starting about 6 feet down and continues until refusal to at least 14 feet. Is it acceptable to pre-drill 10 ft, insert a driven pile, and grout it?

This is acceptable provided the required resistance is met.

Standard Bid Form Format Page 1 of 8

DGS-30-220 Standard Bid Form Format (Rev. 07/22)

BID FORM

DATE: _________________________

PROJECT: Piedmont Virginia Community

College - Dickinson Building Repair of Settlement & Cracking

Piedmont Virginia Community

College - Main Building

Masonry Repair Project

Project Code: 260-B1260-054 MR20029

260-B0260-053 MR 20001

To: Commonwealth of Virginia

Virginia Community College System

300 Arboretum Place, Suite 200

Richmond, VA 23236

In compliance with and subject to your Invitation for Bids and the documents therein specified, all of which are incorporated herein by reference, the undersigned bidder proposes to furnish all labor, equipment, and materials and perform all work necessary for construction of this project, in accordance with the Plans and Specifications dated 1/19/2024 and the Addenda noted below, as prepared by WDP

& Associates Consulting Engineers, Inc, Manassas, VA for the consideration of the following amount:

BASE BID (including the following parts but excluding work in Additive Bid Items):

DICKINSON BUILDING (A)

PART A.1 Dickinson Building

Lump sum price for the masonry wall and underpinning repairs for the building, and for the removal and replacement of existing glazing at the “skylight”, (except for work described in

Parts A.2, A.3, A.4, A.5, A.6, A.7, and A.8). Complete in accordance with Plans, Specifications, and attachments included in Addendum 2:

PART A.1 = ________________________________________ Dollars ($ ).

Base Bids for Parts A.2, A.3, A.4, A.5, A.6, A.7, and A.8 shall be based on the estimated quantities indicated to be provided complete and in accordance with the applicable portions of the plans and specifications. Payment amounts for each of these items will be based on the actual quantities authorized, provided and approved times the unit prices indicated by the bidder. The final contract amount shall be adjusted upward or downward based on the actual payment amounts versus the bid amounts for Parts A.2, A.3, A.4, A.5, A.6, A.7, and A.8.

Standard Bid Form Format Page 2 of 8

PART A.2 – Unit Price 1: Dickinson Building CONCRETE SLAB CRACK REPAIR

Repair of cracking in interior concrete slabs using epoxy. Price per linear foot of crack length. Final amount shall be adjusted upward or downward based on actual quantity authorized.

Estimated quantity of 400 LF @ $ _____________ per LF = ___________

PART A.2 = _______________________________________ Dollars ($ )

PART A.3 – Unit Price 2: Dickinson Building FLOORING REMOVAL AND REPLACEMENT

Removal and replacement in kind of existing pattern vinyl composition tile (in corridors, classrooms, storage, and office spaces) and existing linoleum (in lobbies and galleries) to facilitate the concrete crack repairs in Part A.2. Price per square foot of flooring. Final amount shall be adjusted upward or downward based on actual quantity authorized.

Estimated quantity of 500 SF @ $ _____________ per SF = ___________

PART A.3 = _______________________________________ Dollars ($ )

PART A.4– Unit Price 3: Dickinson Building EXTERIOR CONCRETE STAIR AND WALL REPAIR

Repair and patching of damaged concrete at exterior concrete stair treads and cheek walls using a proprietary concrete repair mortar. Price per square foot of repair assumes an average repair depth of 3 inches. Final amount shall be adjusted upward or downward based on actual quantity authorized.

Estimated quantity of 30 SF @ $ SF =

PART A.4 = __________________________________________ Dollars ($ )

PART A.5 – Unit Price 4: Dickinson Building EXCAVATION OF EXISTING FILL

Excavation of existing fill to facilitate the installation of a new concrete grade beam beneath the exterior gallery wall strip footings. Price per cubic yard of fill excavated. Final amount shall be adjusted upward or downward based on actual quantity authorized.

Estimated quantity of 180 CY @ $ CY =

PART A.5 = __________________________________________ Dollars ($ )

PART A.6 – Unit Price 5: Dickinson Building STEEL HELICAL PILING

Payment for total length of helical piles installed shall be provided at a Unit Price. Labor, materials, and equipment for excavation, selective demolition, bracket installation, cutting off and capping piles, disposal of cut-offs, and replacement and compaction of tailings shall be included as a Lump Sum in PART A.1 (Price per Linear foot of accepted piles installed, with fractional lengths measured to nearest foot). Final amount shall be adjusted upward or downward based on actual quantity authorized.

Estimated quantity of 450 LF @ $ LF =

PART A.6 = __________________________________________ Dollars ($ )

Standard Bid Form Format Page 3 of 8

PART A.7 – Unit Price 6: Dickinson Building WINDOW GLAZING TYPE C-1

Replacement of existing glazing at locations identified as “Type C-1” window systems with new glazing. Price per unit. Final amount shall be adjusted upward or downward based on actual quantity authorized.

Estimated quantity of 12 Units @ $ per unit =

PART A.7 = __________________________________________ Dollars ($ )

PART A.8 – Unit Price 7: Dickinson Building WINDOW GLAZING TYPE C-2

Payment for replacement of existing glazing at locations identified as “Type C-2” window systems with new glazing. Price per unit. Final amount shall be adjusted upward or

Estimated quantity of 2 Units @ $ per unit =

PART A.8 = __________________________________________ Dollars ($ )

SUBTOTAL BASE BID AMOUNT – DICKINSON BUILDING (A) (Sum of PARTS A.1, A.2, A3, A.4, A.5, A.6, A.7, A.8) IS:

______________________________________________________ DOLLARS ($ )

MAIN BUILDING (B)

PART B.1 – Main Building

Lump sum price for performance of the repairs (except for Unit Price items described in PARTS B.2, B.3, B.4, B.5, B6, B7, B8, B9, B10 and B11) complete and in accordance with the Plans and Specifications:

PART B.1 = ________________________________________ Dollars ($ ).

Base Bids for PARTS B.2, B.3, B.4, B.5, B.6, B.7, B.8, B.9, B.10, B.11, and B.12 shall be based on the estimated quantities indicated to be provided complete and in accordance with the applicable portions of the plans and specifications. Payment amounts for each of these items will be based on the actual quantities authorized, provided and approved times the unit prices indicated by the bidder. The final contract amount shall be adjusted upward or downward based on the actual payment amounts versus the bid amounts for PARTS B.2, B.3, B.4, B.5, B.6, B.7, B.8, B.9, B.10, B.11, and B.12.

PART B.2 - Unit Price 1: Main Building Retrofit veneer anchorage

Installation of retrofit veneer ties, removal of existing bed joint reinforcement, and repointing to match existing. (Price per square foot of veneer retrofitted) Final amount shall be adjusted upward or downward based on actual quantity authorized.

Estimated quantity of (6,020) SF @ $ _____________ per SF = ___________

PART B.2 = _______________________________________ Dollars ($ )

Standard Bid Form Format Page 4 of 8

PART B.3 - Unit Price 2: Main Building Corner crack repairs

Corner crack stabilization through the installation of helical stitching ties. (Price per vertical linear foot of corner crack repair) Final amount shall be adjusted upward or

Estimated quantity of (365) VLF @ $ _____________ per VLF = ___________

PART B.3 = _______________________________________ Dollars ($ )

PART B.4 - Unit Price 3: Main Building Masonry removal and replacement

Masonry removal and replacement where existing bricks exhibit cracking, spalling, or cannot be utilized during installation of expansion joints. Masonry removal and replacement may also occur at locations of corroded joint reinforcement. Masonry removal and replacement associated with steel lintel repairs is not included in

PART B.4 but shall be included in PARTS B.2 through B.5. Masonry work associated with the buttress walls is not included in PART B.4 and shall be included as a Lump Sum in PART B.1 (Price per square foot of masonry removal and replacement) Final amount shall be adjusted upward or downward based on actual quantity authorized.

Estimated quantity of (28) SF @ $ _____________ per SF = ___________

PART B.4 = _______________________________________ Dollars ($ )

PART B.5 - Unit Price 4: Main Building Mortar joint repointing

Mortar joint repointing at discrete locations in the exterior brick and interior CMU as a result of cracking or spalling of the existing mortar, as indicated in the

Drawings. Mortar joint pointing work associated with retrofit veneer anchorage repairs and corner crack repairs are excluded and shall be included in PARTS B.2 and B.3, respectively. (Price per linear foot of masonry mortar removal and pointing). Final amount shall be adjusted upward or downward based on actual

Estimated quantity of (395) LF @ $ _____________ per LF = ___________

PART B.5 = _______________________________________ Dollars ($ )

PART B.6 - Unit Price 5: Main Building Existing Expansion Joint Repairs

Removal of existing joint sealants, enlarging of existing joints, substrate preparation, and installation of new joint sealant. (Price per vertical linear foot of joint length) Final amount shall be adjusted upward or downward based on actual

Estimated quantity of (1,260) VLF @ $ _____________ per VLF = ___________

PART B.6 = _______________________________________ Dollars ($ )

Standard Bid Form Format Page 5 of 8

PART B.7 - Unit Price 6: Main Building Saw-Cut New Expansion Joints

Saw-cutting of new expansion joints, substrate preparation, and installation of new joint sealant. (Price per vertical linear foot of joint length) Final amount shall be adjusted upward or downward based on actual quantity authorized.

Estimated quantity of (58) VLF @ $ _____________ per VLF = ___________

PART B.7 = _______________________________________ Dollars ($ )

PART B.8 - Unit Price 7: Main Building Lintel Repair Type 1A

Remove existing brick masonry above lintel, provide temporary shoring to support remaining brick above, remove existing flashings to uncover steel lintel, clean exposed steel surfaces, inspect steel surfaces for section loss, prepare and coat steel surfaces, install new flashing assembly, install new brick veneer anchors, and install new brick to match existing; as described in the Drawings. (Price per linear foot of steel lintel length). Final amount shall be adjusted upward or downward based on actual quantity authorized.

Estimated quantity of (48) LF @ $ _____________ per LF = ___________

PART B.8 = _______________________________________ Dollars ($ )

PART B.9 - Unit Price 8: Main Building Lintel Repair Type 1B remaining brick above, remove existing flashings to uncover steel lintel, clean exposed steel surfaces, inspect steel surfaces for section loss, prepare and coat steel surfaces, install new flashing assembly, install new brick veneer anchors, and install new brick to match existing; as described in the Drawings. (Price per linear

Estimated quantity of (65) LF @ $ _____________ per LF = ___________

PART B.9 = _______________________________________ Dollars ($ )

PART B.10 - Unit Price 9: Main Building Lintel Repair Type 2 remaining brick above, remove existing flashings to uncover steel lintel, clean exposed steel surfaces, inspect steel surfaces for section loss, prepare and coat steel surfaces, install new flashing assembly, install new brick veneer anchors, and install new brick to match existing; as described in the Drawings. (Price per linear

Estimated quantity of (31) LF @ $ _____________ per LF = ___________

PART B.10 = _______________________________________ Dollars ($ )

Standard Bid Form Format Page 6 of 8

PART B.11 - Unit Price 10: Main Building Lintel Repair Type 3

Remove existing brick masonry above lintel, provide temporary shoring to support remaining brick above, remove and salvage existing cavity insulation, remove existing flashings to uncover steel lintel, clean exposed steel surfaces, inspect steel surfaces for section loss, prepare and coat steel surfaces, install new flashing assembly, install new brick veneer anchors, reinstall salvaged cavity insulation, and install new brick to match existing; as described in the Drawings. (Price per linear

Estimated quantity of (68) LF @ $ _____________ per LF = ___________

PART B.11 = _______________________________________ Dollars ($ )

PART B.12 - Unit Price 11: Main Building Steel Resistance Piers

Payment for total length of resistance piers installed shall be provided at a Unit

Price. Labor, materials, and equipment for excavation, selective demolition, bracket installation, cutting off and capping piers, disposal of cut-offs, and replacement and compaction of tailings shall be included as a Lump Sum in PART

B.1. (Price per Linear foot of piers in place, with fractional lengths measured to nearest foot). Final amount shall be adjusted upward or downward based on actual

Estimated quantity of (66) LF @ $ _____________ per LF = ___________

PART B.12 = _______________________________________ Dollars ($ )

SUBTOTAL BASE BID AMOUNT – MAIN BUILDING (B) (Sum of PARTS B.1, B.2, B.3, B.4, B.5, B.6, B.7, B.8, B.9, B.10, B.11, and B.12) IS:

_____________________________________________________DOLLARS ($ )

TOTAL BASE BID AMOUNT (Sum of PARTS A.1, A.2, A.3, A.4, A.5, A.6, A.7, A.8, B.1, B.2, B.3, B.4, B.5, B.6, B.7, B.8, B.9, B.10, B.11, and B.12) IS:

______________________________________________________ DOLLARS ($ )

Contract award will be based on the TOTAL BASE BID AMOUNT shown above (including any properly submitted bid modifications) plus as many Additive Bid Items taken in sequence as the

Owner in its discretion decides to award.

The bidder has relied upon the following public historical climatological records:

Charlottesville 2W (KVACHARL8) ______ for Charlottesville, VA.

Code of Virginia, § 2.2-4376.2 shall be applicable to the Work of the Contract.

Standard Bid Form Format Page 7 of 8

The undersigned understands that time is of the essence and agrees that the time for Substantial

Completion of the entire project shall be 150 consecutive calendar days from the date of commencement of the Work as specified in the Notice to Proceed, and Final Completion shall be achieved within 30 consecutive calendar days after the date of Substantial Completion as determined by the A/E.

Acknowledgment is made of receipt of the following Addenda:

If notice of acceptance of this bid is given to the undersigned within 30 days after the date of opening of bids, or any time thereafter before this bid is withdrawn, the undersigned will execute and deliver a contract in the prescribed form (Commonwealth of Virginia Contract Between Owner and

Contractor, Form CO-9) within 10 days after the contract has been presented to him for signature.

The required payment and performance bonds, on the forms prescribed, shall be delivered to the

Owner along with the signed Contract.

Immigration Reform and Control Act of 1986: The undersigned certifies that it does not and shall not during the performance of the Contract for this project violate the provisions of the Federal

Immigration Reform and Control Act of 1986, which prohibits employment of illegal aliens, or knowingly employ an unauthorized alien as defined in the Federal Immigration Reform and Control

Act of 1986.

DISQUALIFICATION OF CONTRACTORS: By signing this bid or proposal, the undersigned certifies that this Bidder or any officer, director, partner or owner is not currently barred from bidding on contracts by any Agency of the Commonwealth of Virginia, or any public body or agency of another state, or any agency of the federal government, nor is this Bidder a subsidiary or affiliate of any firm/corporation that is currently barred from bidding on contracts by any of the same. We have attached an explanation of any previous disbarment(s) and copies of notice(s) of reinstatement(s).

Either the undersigned or one of the following individuals, if any, is authorized to modify this bid prior to the deadline for receipt of bids by writing the modification and signing his name on the face of the bid, on the envelope in which it is enclosed, on a separate document, or on a document which is telefaxed to the Owner:

I certify that the firm name given below is the true and complete name of the bidder and that the bidder is legally qualified and licensed by the Virginia Department of Professional and Occupational

Regulation, Board for Contractors, to perform all Work included in the scope of the Contract.

Virginia License No.: ______________ Bidder: ______________________________ (Name of Firm)

Contractor Class: ________________ By:___________________________________ (Signature)

Standard Bid Form Format Page 8 of 8

Specialty: _______________________ Valid until: ______________________

FEIN/SSN: _____________________ Title: _______________________________

If General Partnership (List Partners' Names)

Business Address:

Telephone # ________________________

FAX # _______________________________

If Corporation, affix Corporate Seal & list State of Incorporation

State: _____________________________

(Affix Seal)

Virginia State Corporation Commission ID No.: _______________; or

If Contractor is a foreign business entity not required to be authorized to transact business in the

Commonwealth under Titles 13.1 or 50 of the Code of Virginia, or as otherwise required by law, please provide an explanation as to why such entity is not required to be so authorized: ____________________

Contractor’s Proposed Small Business Participation: % _______________________

(required)

GLASS SPECIFICATION

1. Contractor shall provide all the necessary labor, materials, equipment, and supervision to install new glass.

2. Submittals

a. Product data for each product used.

b. Material samples for comparison to existing glazing for approval.

c. Shop drawings to show installation of new gaskets, location of glazing, and field verified dimensions for the existing fenestration framing and glazing pocket.

d. Sample warranties.

3. Warranty

a. Manufacturer's Special Warranty for Insulating Glass: Manufacturer agrees to replace insulating-glass units that deteriorate within specified warranty period. Deterioration of insulating glass is defined as failure of hermetic seal under normal use that is not attributed to glass breakage or to maintaining and cleaning insulating glass contrary to manufacturer's written instructions. Evidence of failure is obstruction of vision by dust, moisture, or film on interior surfaces of glass.

i. Warranty Period: 10 years from date of Substantial Completion.

4. Performance Requirements

a. General: Installed glazing systems shall withstand normal thermal movement and wind and impact loads (where applicable) without failure, including loss or glass breakage attributable to defective manufacture, fabrication, or installation; failure of sealants or gaskets to remain watertight and airtight; deterioration of glazing materials; or other defects in construction.

b. Structural Performance: Glazing shall withstand the following design loads within limits and under conditions indicated determined in accordance with the IBC and ASTM E1300:

i. Basic Wind Speed: 110 mph.

5. Products

a. Reflective- and Low-E-Coated Vision Glass: ASTM C1376.

b. Insulating-Glass Units: Factory-assembled units consisting of sealed lites of glass separated by a dehydrated interspace, qualified in accordance with

ASTM E2190.

i. Thickness: 1 inch, verify matches existing and fits within the existing glazing pocket.

ii. Tint and color: Match existing.

iii. Sealing System: Dual seal, with manufacturer's standard primary and secondary sealants.

iv. Perimeter Spacer: Manufacturer's standard spacer material and construction.

v. Replacement glazing gaskets to match existing and compatible with the existing fenestration system to provide a watertight seal capable of resisting water leakage when tested in accordance with AAMA

501.2.

1. AAMA 501.2 will be tested on 50 linear feet of installed glazing joints at the replacement glazing.

c. Accessories: As indicated by the manufacturer for the installation of their product.

Skylight glazing to be replaced highlighted in

ORANGE

Type-C glazing to be replaced highlighted in RED.

Skylight system glazing to be replaced highlighted in

ORANGE.

Window Dimmensions Note: dimensions have been estimated using existing drawings, and only serve as a benchmark for bidding purposes.

Confirm dimmensions before construction.

5.

ft sl op ed

2.33 ft.

4.84 ft.

5.

ft

2.

ft

2.

ft

5.

ft

5.23 ft.

4.45 ft.

3.

ft

5.00 ft.

4.

ft

2.

ft

5.00 ft.

Skylight South Elevation Skylight West Elevation

Type-C Windows West Elevation

Window Type C-1

Window Type C-2

Skylight system

Type-C glass