Addendum 2.pdf

DTMB-0414 (R 1/15)

STATE OF MICHIGAN Date Issued: January 17, 2018 Department of Technology, Management and Budget Index No(s): 44301 State Facilities Administration File No: 761/15266.SAR 3111 W. St. Joseph Street Department: Environmental Quality Lansing, Michigan 48917 Project Name: Chuck’s Corner Site Marion, MI Subject: Addendum to Bidding Documents

Bid Opening Date: January 24, 2018

ADDENDUM NO. 2

TO: All Bidders

SUBJECT: Addendum to Bidding Documents Chuck’s Corner Site Marion, MI

INTENT: This Addendum is issued to modify the previously issued Bidding Documents.

Item 1 – Answers to Questions: Several questions were posed by Bidders. Please refer to Attachment A for the questions and answers.

Item 2 – Of the Drawings, Sheet 3 – Surface Restoration Details has been revised. Sheet 3 now identifies the entire concrete surface over the gasoline UST will be replaced since it is expected to be removed during the selective demolition portion of the Work and in order to complete site restoration activities. Additionally, Sheet 3 now identifies pulverized/recycled asphalt will be replaced as surface cover over the area southeast of the concrete. These revised surface areas are identified in the Legend on Sheet 3.

Item 3 – The Bid Schedule has been revised and is attached. The bid quantity for Base Bid Item No. 5 “Transportation and Recycling/Disposal of Asphalt and Concrete” was increased to 255 tons in order to account for the removal changes made on Sheet 3. Additionally, the Base Bid Item No. 15 “Provisionary Allowance for Unforeseen Site Conditions” was increased to $40,000.00.

Accordingly, the following references in the specifications are modified as follows:

• Section 01020 Allowances, Article 1.2 Provisional/Contingency Allowances, Item (a) shall be modified as follows:

Bidders must include in their Base Proposal Sum a contingency allowance of $40,000.00. The base bid shall include bonds and insurance on the value of the allowance.

• Section 01025 Measurement and Payment, Article 3 Description of Pay Items, Item No.

15 - Provisionary Allowance for Unforeseen Site Conditions shall be modified as follows:

Bidder must include in their Base Proposal Sum a provisionary allowance of $40,000.00. The base bid shall include bonds and insurance on the value of the allowance. Monies will be used in the contingency allowance only if directed in writing by the Project Director and the Professional. Payments under a Provisionary Allowance will include not only the purchase/furnished cost of the materials and equipment involved, but also all related labor costs, subcontract costs, construction equipment costs, general conditions cost and fee, provided they are calculated in accordance with the requirements of the contract documents. Unused allowances will be deducted from the contract amount through contract change order.

Item 4 – Section 024113 Selective Demolition, Article 1.1, Item (b) shall be modified as follows: Saw cut and remove concrete and/or asphalt, as necessary, in order to remove underground storage tank (UST) piping between the 12,000 gallon gasoline UST and the two gasoline dispensers. It is anticipated that all concrete will be removed from the surface above the gasoline UST and between the UST and the vent lines. The UST Owner is responsible for ensuring the gasoline UST is 100% full prior to the removal of the concrete surface cover above the UST in order to prevent the UST from potentially rising due to the presence of groundwater.

Item 5 – Section 026100 Removal and Disposal of Impacted Soil, Article 1.1, Item (h) shall be modifed as follows: Removal and disposal/recycling of existing asphalt and concrete materials, as required. Quantity is estimated to be approximately 255 tons of asphalt and/or concrete materials.

Item 6 – Section 312323 Backfill, Article 1.3, Item (a) has been deleted.

Item 7 – Section 312500 Erosion and Sedimentation Control, Article 3.1, Item (a), Subitem (i) has been modified as follows: Drainage: The Contractor shall construct and maintain any necessary surface drainage systems on the Work site so as to prevent water from entering existing structures, flowing into the excavation or the UST cavity, or flowing onto public or private property adjacent to the site. The Contractor shall prevent erosion of soils and blockage of any existing drainage system, such as storm sewers. The related costs are incidental to the project.

Item 8 – Section 329119 Site Restoration has been modified and is attached.

Item 9 – Section 01025 Measurement and Payment, Article 3 Description of Pay Items, Item No. 12 – Site Restoration has been modified as follows: Payment shall be made on the basis of a lump sum which shall be full compensation to restore the site to pre-work conditions by providing final site grading, asphalt placement, concrete placement, gravel placement, pulverized/recycled asphalt placement, and topsoil and seeding. The site shall be graded to promote runoff and prevent ponding or flooding on the site.

ACKNOWLEDGEMENT: This Addendum must be acknowledged by the bidder in the space provided in the Bid Summary Form submitted with the bidder's bid for submission of a valid bid. The changes and information shall become part of the contract documents. (Authority: 1984 PA 431)

ATTACHMENT A

ANSWERS TO QUESTIONS

Q: At the pre-bid meeting, the property owner indicated a preference for using crushed asphalt instead of gravel. Is this going to be added as an alternate bid item and would it be applicable to all areas noted as "gravel" on Sheet 3?

A: Sheet 3 (Surface Restoration Details) has been revised to replace pulverized/recycled asphalt in the area southeast of the concrete. Section 329119 (Site Restoration) has also been revised to reflect this surface restoration change. The Bid Schedule was not affected by this surface restoration change since the Base Bid Item No. 12 is a Lump Sum item for “Site Restoration”.

Q: In section 312323 (1.3 (a)) of the PSM, it states the contractor shall use stockpiled materials deemed suitable as backfill and if not used the soil shall be removed from the site. With storing the canopy components on site, maintaining access for customers to the store and getting trucks in and out of the site, there is not a lot of extra space available on the site. Is this requirement still applicable or can it be reconsidered?

A: The Owner and Professional do not intend to stockpile any native soils for placement as backfill; all excavated soils will be removed from the site. Accordingly, Section 312323 (Backfill) has been revised to reflect this intent.

Q: With an indeterminate date for when the frost laws will be lifted, the window for completing the work on the project to meet the deadlines (5/11/18 for fuel dispensing and 5/18/18 for M-115 to be reopened) is likewise indeterminate. With that said, extra hours may be required (i.e. weekends, longer hours during the week, etc.) to complete the project. So this is not so much a question, but rather something that may have to be considered and addressed dependent upon when we can actually start the project.

Q: Additionally, another inquiry was received which reiterates project schedule concerns without asking a specific question.

A: The Owner is aware of the issues raised regarding timing and frost laws. For bidding purposes, please assume that the frost laws will not be an issue and that the current schedule will be met. If site conditions change and the Owner and Professional agree, the Provisionary Allowance may be accessed to address cost differentials. Final pavement dates will be as stated in the original Bidding and Contract Document.

Bidding and Contract Document (R 8/17) Project Name: Chuck’s Corner Site File No. 761/15266.SAR

FIRM NAME TELEPHONE NUMBER and E-MAIL ADDRESS

BID SCHEDULE

Base Bid Schedule - The Bidder will complete the Work and accept as full payment, for the Work items listed, the following Unit Prices and/or Item Bid Prices, as applicable:

Base Bid Item No.

Bid Quantity

Description Units Unit Price

Item Bid Price

01. 1 Job Site Administration and Pre-Construction Submittals

Lump Sum

02. 1 Mobilization and Site Preparation (Cannot exceed 4% of Base Bid)

Lump Sum

03. 1 Abandonment of Three Deep Monitoring Wells Lump Sum

04. 1 Deconstruction and Dismantling of Fueling Canopy and Gasoline Dispensers

Lump Sum

05. 255 Transportation and Recycling/Disposal of Asphalt and Concrete

Tons

06. 1 Transportation and Recycling/Disposal of Fuel Lines and Miscellaneous Debris

Lump Sum

07. 3,860 Contaminated Soil Excavation, Transportation, and Disposal

Tons

08. 1 Removal and Replacement of MDOT Culvert, Temporary Stormwater Management During Excavation, and Collection of VSR Samples

Lump Sum

09. 1 Traffic Control Lump Sum

10. 3,185 Delivery, Backfill, and Compaction of Clean Fill Tons

11. 1 Reconstruction of Fueling Canopy, Gasoline Dispensers, and Underground Piping and Completing Tightness Testing

Lump Sum

12. 1 Site Restoration Lump Sum

13. 1 Submittals Lump Sum

14. 1 Demobilization Lump Sum

15. 1 Provisionary Allowance for Unforeseen Site Conditions

Lump Sum $40,000.00 $40,000.00

Base Bid (Sum of Item Bid Prices for all Base Bid Items):

__________________________________________________________________ Dollars $__________________________ (use words) (in figures)

Schedule of Alternates - The Bidder will complete (or deduct from the Contract) the parts of the Work designated by the Alternates that follow and accept in full payment (or allow in full credit) for those parts of the Work the following Item Bid Prices:

Alternate Bid Description Unit Item Bid Item No. Quantity (Bidder to write price in words) Price Price

The Bidder further acknowledges and agrees that the separate prices bid on this “Schedule of Alternates,” where they are applicable and deemed acceptable by the Owner, will be used if incorporated into the Contract when the Owner issues the Notice of Award.

SECTION 329119 SITE RESTORATION

1. GENERAL

1.1. DESCRIPTION

(a) Restoration of all areas impacted by work activities, including pavements, curbing, sidewalks, roads, vegetation, canopy, dispensers, and all other disturbed or altered structures/features which shall be restored to pre-work condition in accordance with this section, related sections, and the contract documents. Sheet 3 – Surface Restoration Details identifies the approximate limits of concrete, asphalt, pulverized/recycled asphalt, and gravel. Additional site restoration details are provided on Sheet 7 – Site Restoration Cross Section, Sheet 8 – Typical Gasoline Dispensing System Construction Diagram, and Sheet 9 – Canopy Footing Diagram.

(b) Contractor shall furnish and place approved site restoration materials in all disturbed areas including but not limited to the excavation area, staging area, and traffic areas.

(c) Restoration of Highway M-115 and the right-of-way (ROW) in accordance with the MDOT 2012 Standard Specifications for Construction (MDOT 2012) and these specifications and related sections, including but not limited to sub-base and aggregate base placement, concrete and asphalt replacement, and restoration of permanent pavement markings. Restoration of Highway M-115 and the ROW is subject to MDOT approval.

Also refer to Section 321216 for asphalt specifications.

(d) Restoration of concrete onsite, including repair and/or replacement of all cracked or broken concrete damaged during the project. Refer to Section 033000 for detailed concrete specifications.

(e) Restoration of gravel areas onsite, including any areas damaged during the project, which shall include placement and compaction of 4 inches of MDOT Class 21AA or 22A. Compaction requirements are described below in Item 3.3 of this Section.

(f) Restoration of pulverized/recycled asphalt areas onsite, including any areas damaged during the project, which shall include placement and compaction of 4 inches of pulverized/recycled asphalt with a maximum diameter of 2 inches. Compaction requirements are described below in Item 3.3 of this Section.

(g) Restoration of any disturbed vegetated areas of the site property. Refer to Section 329200 for detailed topsoil and seeding specifications.

(h) Restoration shall include repair and/or replacement, with similar materials, all utilities damaged during the project. Contractor shall reconnect any utilities disconnected during execution of the Work.

(i) Reinstallation of gasoline dispensing system, including installation of new gasoline fuel lines between the UST and dispensers. Rebuilding the gasoline dispensing system to be equivalent to pre-Work conditions, including dispensing three grades of gasoline fuel from both sides of two dispenser islands. Contractor shall ensure a certified tank installer completes the work in accordance with all applicable local, state, and Federal laws and regulations. Contractor shall furnish new fuel supply lines, underground dispenser container (UDC) sumps and sensors, tank sumps (if necessary), tank sump sensors, fittings, valves, mounting hardware, and any and all necessary appurtenances in order to restore the dispensers to pre-Work condition. The tank sump sensors and the UDC sensors shall be wired for catastrophic shutdown. Contractor is responsible for ensuring proper operation of gasoline dispensing system, including passing line tightness testing and approval by appropriate authorities as well as completing the work to the satisfaction of the Owner and property owner. Sheet 8 provides a typical gasoline dispensing system construction diagram.

(j) Reconstruction of fueling canopy to pre-work conditions, including installation of new footings as specified in this section, Section 033000 Cast-in-Place Concrete, and Sheet 9 – Canopy Footing Diagram.

(k) All site restoration activities are subject to all applicable local, state, and federal codes, rules, and regulations.

(l) All Work conducted in the M-115 ROW shall be completed by an MDOT-approved contractor and is subject to

MDOT approval. All Work conducted on the gasoline dispensing system shall be completed by a certified tank installer.

1.2. PROJECT COORDINATION

(a) The Contractor shall carefully coordinate the work in this Section with all other work. The work shall be compliant with OSHA regulations and other applicable safety requirements.

(b) The Contractor shall obtain inspections and approvals in accordance with any permits, including the electrical permit, the building permit, and the MDOT ROW Permit. The Contractor shall also conduct the work in accordance with DLARA requirements.

1.3. SUBMITTALS

(a) In accordance with Section 01300 Submittals, the Contractor shall submit the following to the Professional for approval:

i. Gasoline Dispensing System Product Specifications: Submit product information data for components of gasoline dispensing system reconstruction, including but not limited to: dispenser sumps, tank sumps, fuel supply lines, interstitial monitoring sensors, and steel island form, etc.

ii. As-built drawings: Submit as-built drawings for UST system components, including locations of underground piping on a site map within 14 days of project completion.

iii. Immediately upon completion, submit DLARA Forms BFS-3881 and BFS-3821 (Copies provided in

Appendix VIII.)

2. PRODUCTS

2.1. GASOLINE DISPENSING SYSTEM COMPONENTS

(a) Gasoline Dispensers: Contractor shall reinstall the two gasoline dispensers removed during the selective demolition portion of the Work.

(b) Product information data for all new components shall be submitted to the Professional at least five (5) business days prior to construction per Section 01300.

(c) Underground Dispenser Container (UDC) Sumps: Contractor shall provide and install a new one piece polyethylene UDC sump and all necessary hardware and fittings for each dispenser island. The dispenser sumps shall be installed per the manufacturer’s recommendations.

(d) Tank Sumps: Contractor shall provide and install new one piece polyethylene tank sumps, lids and all necessary hardware and fittings, as required. The tank sumps shall be installed per the manufacturer’s recommendations.

(e) Underground Dispenser Container (UDC) (sump) sensors and tank sump sensor: Contractor shall provide and install a new UDC sump sensor for each dispenser island and tank sump sensors (if not already present).

(f) Fuel Supply Lines: Contractor shall provide and install new secondary containment (double-wall) flexible fuel supply lines and all necessary fittings. Sizing shall be the same as pre-Work conditions. Flexible or hard piping may be used to connect the fuel supply line to the existing pumps. Piping shall be installed per the manufacturer’s recommendations. All piping materials shall be approved for use by the State of Michigan.

(g) Steel Island Form: Contractor shall provide a new steel island form for each of the two dispenser islands. The island form shall be constructed of 12-gauge, primered gray steel and shall have the following approximate dimensions: 13 inches tall, 6 feet long, and 4 feet wide with each corner having a 6-inch corner radius. The form shall have interior cross-bracing and a sump mounting plate.

(h) Concrete for Dispenser Island: Contractor shall use concrete that meets applicable building code and industry standards and the requirements of Section 01400 Quality Control and Section 033000 Cast-in-Place Concrete.

(i) Pipe Bollards: Contractor shall reinstall the four (4) steel pipe bollards removed during the selective demolition portion of the Work. If Contractor is unable to salvage the steel pipe bollards, Contractor shall provide and install equivalent horseshoe bollards. The horseshoe bollards shall have an exposed height of approximately

37 inches and a diameter of at least 4 inches. The bollards shall be painted gray and have striped bollard decals in order to match pre-Work conditions.

(j) Pea stone (gravel): Contractor shall provide pea stone (gravel) as required to restore areas of pea stone to pre-

Work conditions.

2.2. FUELING CANOPY COMPONENTS

(a) Fueling Canopy: Contractor shall re-install the fueling canopy and all related components dismantled during the Selective Demolition portion of the Work, including but not limited to: the steel canopy support columns, steel framing, metal cladding including the fascia and the soffit, lighting, drainage structures, signage, graphics, etc.

i. As described in Section 024113 Selective Demolition, if the steel columns were originally bolted to the original concrete footing with a steel plate and stiffeners, Contractor shall be responsible for providing necessary equivalent fasteners and/or other required components in order to re-install the canopy and return to pre-Work conditions.

(b) Concrete Footings for Fueling Canopy Columns: The Contractor shall use concrete that meets applicable building code and industry standards and the requirements of Section 01400 Quality Control and Section 033000 Cast-in-Place Concrete. Sheet 9 – Canopy Footing Diagram provides additional details for concrete footing installation.

2.3. SUITABLE SURFACE RESTORATION MATERIALS

(a) Concrete: Contractor shall use concrete meeting the requirements of Section 033000 Cast-in-Place Concrete and in accordance with MDOT 2012.

(b) Asphalt: Contractor shall use asphalt meeting the requirements of Section 321216 Asphalt Paving and in accordance with MDOT 2012.

(c) Topsoil: The Contractor shall use topsoil meeting the requirements of Section 329200 Topsoil and Seeding.

(d) Grass Seed: The Contractor shall use grass seed meeting the requirements of Section 329200 Topsoil and

Seeding.

(e) Gravel: The Contractor shall obtain and place MDOT aggregate 21AA or 22A.

(f) Pulverized/recycled asphalt: The Contractor shall use pulverized/recycled asphalt with a maximum diameter of

2 inches.

3. EXECUTION

3.1. GASOLINE DISPENSING SYSTEM REINSTALLATION

(a) The Contractor shall reinstall the previously dismantled gasoline dispensing system in order to restore the site to pre-Work conditions. Sheet 8 – Typical Gasoline Dispensing System Construction Diagram provides typical construction details.

(b) The Contractor shall reinstall any previously disconnected electrical and communications lines and shall ensure the gasoline dispensing system is installed to the satisfaction of the Owner and property owner.

(c) The gasoline dispensing system reinstallation must be conducted by a certified tank installer. All related work must be conducted in accordance with all applicable local, state, and Federal regulations and in accordance with standard industry practices and manufacturer recommendations. All materials shall be installed square, plumb, and level in a quality workmanlike manner.

(d) The Contractor is responsible for obtaining required inspections and approvals, in accordance with the electrical and building permits.

(e) The Contractor is also responsible for meeting DLARA requirements.

(f) Dispenser Sumps, Tank Sumps, Interstitial Monitoring, and Fuel Supply Lines

i. The dispenser sump shall be installed per the manufacturer’s recommendations and State requirements.

ii. All electrical connections shall be made in accordance with local, state, and national codes.

iii. All equipment and materials shall be installed per the manufacturer’s recommendations and State requirements.

iv. The Contractor shall allow for the inspection of subsurface work prior to backfilling or concealing.

v. All sand backfill material around the sumps shall be compacted to a minimum of 95 percent of its maximum dry unit weight, as determined by the Modified Proctor Test (ASTM D 1557).

vi. All pea stone backfill material shall be level and hand compacted.

vii. An interstitial monitoring device (sump sensor) shall be installed in each dispenser sump and in each tank sump (if not already present) in accordance with State requirements.

viii. The dispensers shall be placed on a concrete pad contained within the steel island form in order to return the dispenser islands to pre-work conditions. The dispenser sump shall be mounted to the steel island form and the form shall be placed such that the finish height is approximately 6” above the final site grade as depicted on Sheet 8 – Typical Gasoline Dispensing System Construction Diagram.

Concrete shall be placed in the form as specified in Section 033000 Cast-in-Place Concrete.

(g) Pipe Bollards

i. The salvaged horseshoe steel pipe bollards shall be installed on both sides of each dispenser island to restore the site to pre-work conditions.

ii. The base of the bollards shall be set in concrete in accordance with Section 033000 Cast-in-Place Concrete.

iii. The horseshoe bollards shall have an exposed height of approximately 37 inches and a diameter of at least 4 inches in order to restore the site to pre-Work conditions. The bollards shall be painted gray and have striped bollard decals in order to match pre-Work conditions.

(h) Return to Service

i. The Contractor shall perform all necessary testing and inspections to return the system to service. This shall include a pressure test of at least 30 psi for a period of not less than 60 minutes. No pressure loss shall be observed during the test period.

ii. Contractor shall coordinate and attend all State inspections related to the gasoline dispensing system reconstruction.

iii. Contractor shall make all final connections, including electrical, to the system.

iv. Contractor shall return the gasoline dispensing system to operating condition acceptable to the Owner and property owner.

3.2. FUELING CANOPY REINSTALLATION

(a) The Contractor shall reinstall the previously dismantled fueling canopy and all related components, including but not limited to: the steel canopy support columns, steel framing, metal cladding including the fascia and the soffit, lighting, drainage structures, signage, graphics, etc., in order to restore the site to pre-Work conditions.

(b) The Contractor shall reinstall any previously disconnected electrical and communications lines and shall ensure the canopy is installed to the satisfaction of the Owner and property owner.

(c) The Contractor is responsible for construction work conforming to all local, state, or national codes.

(d) The Contractor is responsible for obtaining required inspections and approvals, including meeting the requirements of the building and electrical permits.

(e) All materials shall be installed square, plumb and level in a quality workmanlike manner.

(f) All backfill bearing material shall be compacted to a minimum of 95 percent of its maximum dry unit weight, as determined by the Modified Proctor Test (ASTM D 1557).

(g) The two fueling canopy steel support columns shall each be set in a concrete footing as shown on Sheet 9 –

Canopy Footing Diagram. Additional concrete details are provided in Section 033000 Cast-in-Place Concrete.

i. As described in Section 024113 Selective Demolition, if the steel canopy support columns were bolted to the original concrete footing with a steel plate and stiffeners, Contractor shall be responsible for providing necessary equivalent fasteners and/or other required components in order to re-install the canopy and return to pre-Work conditions.

3.3. SURFACE RESTORATION

(a) Contractor shall install gravel, concrete, asphalt, and pulverized/recycled asphalt to restore the surface of the site to pre-Work conditions, including the installation of concrete pads, curbing, sidewalks, and footings as well as asphalt road and parking surfaces. The limits of the surface restoration types are identified on Sheet 3 – Surface Restoration Details.

(b) Sand backfill shall be graded to allow gravel, concrete, pulverized/recycled asphalt, and asphalt (and the required aggregate base) to be placed so the final grade matches that of the surrounding surface. Refer to Section 312323 Backfill and Sheet 7 – Site Restoration Cross-Section for additional details.

(c) A minimum of 4 inches of MDOT aggregate 21AA or 22A shall be placed across the area to be restored with gravel in order to restore the site to pre-Work conditions. Gravel shall be compacted to a minimum of 95 percent of its maximum dry unit weight, as determined by the Modified Proctor Test (ASTM D 1557).

(d) A minimum of 4 inches of pulverized/recycled asphalt shall be placed across the area to be restored with pulverized/recycled asphalt in order to restore the site to pre-Work conditions. Pulverized/recycled asphalt shall be compacted subsequent to placement such that the final grade matches that of the surrounding surface and to restore the site to pre-Work conditions.

(e) Asphalt shall be placed as indicated on the drawings and as described in Section 321216 Asphalt Paving.

Asphalt placement shall be performed in accordance with the requirements of MDOT 2012.

(f) Concrete shall be placed in the M-115 ROW in accordance with the drawings and as described in Section

033000 Cast-in-Place Concrete. The concrete island in the ROW, including curb and gutter, shall be installed in accordance with the MDOT M-115 Drawings in Appendix VII as well as the MDOT R-30-G (Concrete Curb and Concrete Curb and Gutter) Drawing also in Appendix VII. Concrete placement shall also be in accordance with MDOT 2012 and is subject to MDOT approval.

(g) Final ground surface shall slope away from the existing buildings.

(h) Concrete Pad

i. The Contractor shall install a 6” thick concrete pad in order to restore the site surface to pre-work conditions. Refer to Sheet 3 – Surface Restoration Details, Sheet 7 – Surface Restoration Cross- Section, and Sheet 9 – Canopy Footing Diagram for additional details. Since the Contractor is responsible for replacing concrete damaged or removed during the Work, this concrete pad construction may extend beyond the area shown for surface restoration on Sheet 3 – Surface Restoration Details.

ii. The concrete pad shall be installed in accordance with Section 033000 Cast-in-Place Concrete.

END OF SECTION 329119