SITE IMPROVEMENTS HILLARD BLOOM SHELLFISH COMPANY. 210 Stratford Avenue Bridgeport, CT. ADDENDUM No. 5 to BID No. PEB April 21, 2010

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1 SITE IMPROVEMENTS HILLARD BLOOM SHELLFISH COMPANY 210 Stratford Avenue Bridgeport, CT ADDENDUM No. 5 to BID No. PEB April 21, 2010 The attention of bidders submitting bids for the above project is called to the following Addendum to the Project Manual and Contract Drawings. The items set forth herein, whether of omission, addition or substitution, are to be included in and form a part of the Bid submitted. BID FORM The BID form is replaced by the attached revised BID FORM, dated April 20, TECHNICAL SPECIFICATION SECTION STEEL PIPE PILES (MONOPILES) Technical Specification Section Steel Pipe Piles (Monopiles), is replaced by the enclosed Technical Specification Section 02456A, revised April 20, TECHNICAL SPECIFICATION SECTION 02456A STEEL H-PILES Technical Specification Section 02456A Steel H-Piles, is replaced by the enclosed Technical Specification Section 02456A, revised April 20, Drawing No. WH-6 is amended as follows: NOTES REGARDING PILING DRAWING NO. WH-6 Note 2 is revised to read as follows: The epoxy coating shall extend into the underlying sediments. Given the uncertainty associated with pile length at any given location and the likely need to splice piles from transportable stock, Bidders should assume that excess coating will be necessary and supplemental field coating may be required to achieve the desired result. Bids should be calculated on the basis of a 30-foot coated length per pile, but the Contractor shall be responsible to achieve the desired result; that the epoxy coating shall extend into the underlying sediments. Note 3 is revised to read as follows: Drive to 60 ton capacity, see following notes. Bid on basis of 100 foot average pile length; payment shall be made on the basis of installed pile length. No additional payment shall be made for splicing. Addendum No. 5 April 21, 2010 Page 1 of 6

2 Drawing No. WH-9 is amended as follows: DRAWING NO. WH-9 On Detail 2 Typical Dolphin Elevation, the top elevation should read MLW ( NGVD). REVISED RESPONSE TO PLANHOLDER QUESTION From Addendum No. 3, issued April 14, 2010, Planholder Question 1: How long is the coating on the 48 dia. pipe piles? The initial response was that the upper 20 feet of each pile shall be coated. The response is revised to require that the coating shall extend from the top of the pile a minimum of 10 feet into the underlying sediment. The contractor may conduct probes in the proposed dolphin locations to determine the likely overall pile length based on the required minimum penetration into sandy sediments and submit probe findings to the Engineer for review. In the absence of such probes, and due to the impracticality of extending the coating after pile installation, bids shall be prepared on the basis that the FULL LENGTH of each pipe pile shall be coated prior to installation RESPONSES TO PLANHOLDER QUESTIONS 1. Addendum 1 includes a new specification for Steel H-Piles. 4.1 States no measurements will be made. Payment for Steel H-Piles will be deemed included in the lump sum price bid for the Wharf Contract. I assume that costs for Furnishing and Installing H-Piles should be included in Bid Item Number 21 Concrete Wharf. If my assumption is correct then what is the purpose of Bid Item 19? Should this price be included in the total Base Bid? 4.2 States that an adjustment in payment will be made for additional length of H-Piles. I assume this is for furnishing additional H-Pile material. 4.3 Please explain exactly what 4.3 is stating. I assume that the Unit Price for Bid Item 19 will be used to determine adds or deducts for the adjustment based on the final linear footage of H-Pile Driven. Can you explain what vis-a-vis the 20 units whose cost is to be included in the Lump Sum Bid means? Are my assumptions above correct? See the attached Specification Section 02456A for changes to the measurement and payment of H-Piles. These modifications supersede information on Drawing WH-6. In addition, see above for revisions to the Notes Regarding Piling on Drawing WH Bid Item 22. Steel Pipe Piles. Due to unknown final installed length, would it be appropriate to add a Bid Item for Furnish Pipe Piles? See the attached Specification Section for changes to the measurement and payment of Steel Pipe Piles. Addendum No. 5 April 21, 2010 Page 2 of 6

3 3. More time is required to complete this bid. Can the bid date be extended by 1 week? Per Addendum No. 4 issued April 16, 2010, the bid opening has been changed to May 6, 2010 at 2 p.m. 4. What type of attachment is required for the cover plates for the utility trench to the W8 beams? No attachment is necessary, provided some means of maintaining the proper positioning of the W8 beams within the trench is provided. This might be accomplished, for example, by providing raised tabs on the seat bars in the trench to locate the W8 beams. 5. In the revised H pile spec transmitted in addendum 1, Part 1.6 B (Project Conditions) Test Piles: Report on test Piles (and diver inspection of rip rap, is presented in Section Special Conditions. What is the diver inspection? Are we supposed to perform a dive inspection of the rip rap? No diver inspection was performed, and none is required. 6. Can a different type of half pipe be used over the tie rods? PVC, Steel, RCP? Any type of half-round cover may be used, provided that it is of a non-corroding material and is strong enough to support and transfer the soil load without bearing on the tie rods. 7. The sketch attached to addendum 3 is titled Attachment to Addendum No. 3 Questions 8&9 but seems to refer to questions 9&10, is this the case? That is correct. Sketch SK-1 refers to Questions 9 and 10 on Addendum No To what capacity are the pile load tests? 120 tons. 9. The invitation to bid indicates two sealed bids are to be delivered, Addendum No. 1 says three sealed bids are to be delivered and Question 12 in addendum 1 says two sealed bids. Which is correct? Per Addendum No. 4 issued April 16, 2010, one (1) original and two (2) copies of all bids and supporting documentation must be submitted. All materials shall be submitted in one (1) sealed envelope or package. Addendum No. 5 April 21, 2010 Page 3 of 6

4 10. Zone 5 North end of the concrete cap, is a pile located just off the edge of the cap? See drawing WH2, the bent center line stops. There is a pile at this location. However, the pile will be shifted off the north-south bent alignment to avoid the existing concrete bulkhead cap beam. Accordingly, length of the pile cap on that east-west bent alignment will be field adjusted as necessary. 11. What is the final count of production H piles? I have 70 but the bid form has LF for 72. Are there (2) extra piles? There are seventy (70) production piles. Base bids on a total installed length of 7,000 linear feet, per the revised Bid Form, attached. 12. Drawing WH6 detail 3 says to use existing ramp hinges but the ramp/gangway (same sheet) description includes hinges. Do we have new hinges fabricated? New hinges shall be required for the ramp/gangway. 13. Sheet WH9 What is the weld size for the channel attachments and top plates to the pipe piles? Will the weld need to go below MLW (underwater welding)? In order to install the piles it seems these must be field welds, are they? Welds shall be 5/16-inch size. Welds may be field or shop welds, and may be underwater if field-welded. 14. Is the revision 03/24/10 of WH9 the latest? Addendum 1 says the date should be 03/25/10. The correct revision date for sheet WH-9 is March 24, Addendum No.1 requires three copies of the bid documents. Question 12 of the same Addendum was answered as two. Please clarify how many copies of the bid documents are to be submitted. Please clarify if one original and copies are to be submitted or all originals. Please clarify if each set of bid documents is to be submitted in an individual envelope or all copies of the bid documents will be submitted in one envelope. Per Addendum No. 4 issued April 16, 2010, one (1) original and two (2) copies of all bids and supporting documentation must be submitted. All materials shall be submitted in one (1) sealed envelope or package. Addendum No. 5 April 21, 2010 Page 4 of 6

5 16. In addition, we request an additional week extension for the bid opening. We have received a number of requests from the Subcontractors we have solicited asking for additional time. And time for ourselves due to our previous and current bidding schedule, to receive competitive vendor pricing and to evaluate and offer a competitive bid on our part. Per Addendum No. 4 issued April 16, 2010, the bid opening has been changed to May 6, 2010 at 2 p.m. 17. On the plan WH9 the steel pipe, monotube, material is called out as A252 Grade 50; in the spec for the steel pipe the material is called out as A252 grade 2 which has a 35KSI yield strength. Which is correct? The steel pipe monopoles shall be Grade Plan sheet LP-1, the South end of the wall there is a note Repair Existing Bulkhead (APPROX 140 LF). What is the repair and is it still part of the work to be performed? See Addendum No. 1, response to Question No. 2: The nature of the bulkhead repairs is currently under discussion with the Connecticut Department of Environmental Protection. If a final decision is reached on the nature and extent of repairs prior to the bid date, details and specification will be issued in a future addendum. At this time, no repair work in the area indicated on sheet GD-1 is to be included in the bid. 19. Please provide more info. relating to the pipe trench grating. 1.) What is the thickness of the checkered plate. Steel fabricators do not wish to try to figure this out using design criteria of live loads and point loads. 2.) What is the bar size and spacing for the grating? 3.) Can you be more specific about the retractable lifting devices? What are they, how many, etc. 1. Bidders shall be responsible for detailing the checkered plate as indicated in the plans. 2. There are no gratings required. 3. Each cover plate shall have some means of being lifted; this may be a hole in the plate to accommodate a lifting hook or toggle, a ring-type fitting that rests flush with the plate surface when not in use, or some other device. 20. Is there a spec. available for the coal tar epoxy coating specified? Is a hot dip or painted galvanized coating acceptable instead? A galvanized coating is not acceptable. Provide coating per Specification Section Addendum No. 5 April 21, 2010 Page 5 of 6

6 21. Also, handrails are referenced on Sheet WH-6. Can you provide more details instead of design criteria? What is the post spacing? Is it a 2-line or 3-line or single line rail? Can you provide a detail for the face mounting? The handrail shall be a three-rail design, with uniform post spacing not to exceed six feet (6 ) center-to-center. The face mounting system shall consist of two clamps per post and shall permit periodic removal and reinstallation of the handrail. 22. Can we get the list of attendees who attended the second mandatory pre-bid meeting to other than those who attended the first one? The sign-up sheet for the second site visit is attached. 23. Did you work with any manufacturer in the design, etc. for the precast concrete planks, etc.? If so, can you please let me know who? No manufacturer was involved in the design of the precast concrete planks. Please see the response to Question 13, Addendum No. 1, for additional information. - END OF ADDENDUM NO. 5 - Addendum No. 5 April 21, 2010 Page 6 of 6

7 BID FORM Proposal of (hereinafter call BIDDER), organized and existing under the laws of the State of, doing business as *. (*Insert a corporation, a partnership, or an individual as applicable.) To the City of Bridgeport, 999 Broad Street, Bridgeport, CT (hereinafter called OWNER ). In compliance with your Advertisement for Bids, BIDDER hereby proposes to perform all WORK for the execution of Site Improvements Hillard Bloom Shellfish Company in strict accordance with the CONTRACT DOCUMENTS, within the time set forth therein, and at the price stated below. By submission of this BID, each BIDDER certifies, and in the case of a joint BID each party thereto certifies as to his own organization, that this BID has been arrived at independently, without consultation, communication, or agreement as to any matter relating to this BID with any other BIDDER or with any competitor. BIDDER hereby agrees to perform WORK under this contract as indicated in Special Condition 305, Time for Commencement and Completion. BIDDER acknowledges receipt of the following ADDENDA: Addendum No. Date Bid No. PEB Revised April 20, 2010 Page 1 of 6

8 BIDDER agrees to perform all the work described in the CONTRACT DOCUMENTS for the following prices: BASE BID ITEMS Item No. Description Total Price (figures) 1. Site Clearing, the lump sum price of 2. Erosion and Sedimentation Control Measures, the lump sum price of 3. Site Grading, the lump sum price of 4. Segmental Retaining Wall, the lump sum price of 5. Storm Drainage, the lump sum price of 6. Sanitary Sewerage, the lump sum price of Bid No. PEB Revised April 20, 2010 Page 2 of 6

9 7. Fire Protection System, the lump sum price of 8. Bituminous Concrete Paving and Curbing, the lump sum price of 9. Concrete Sidewalk, 13 square yards at the price per square yard of, for a total price of 10. Concrete Driveway Apron, 40 square yards at the price per square yard of, for a total price of 11. Granite Curb, 30 linear feet at the price per linear foot of, for a total price of Bid No. PEB Revised April 20, 2010 Page 3 of 6

10 12. Pavement Marking and Signage, the lump sum price of 13. Fencing, Gates and Guide Rail, the lump sum price of 14. Landscaping, the lump sum price of 15. Site Lighting, the lump sum price of 16. Parapet Mounted Snow Fence For I-95 Bridge, the lump sum price of 17. Waterfront Water and Electrical Services, the lump sum price of 18. New Bulkhead Anchor System, the lump sum price of Bid No. PEB Revised April 20, 2010 Page 4 of 6

11 19. Steel H- Piles, 7,000 linear feet at the price per linear foot of, for a total price of 20. Drilling Through Obstructions for Pile Installation, 400 linear feet at the unit price per linear foot of, for a total price of 21. Concrete Wharf, the lump sum price of 22. Steel Pipe Piles (Monopiles), 4 each at the price per each of, for a total price of 23. Excavate, Dispose Off-Site and Backfill PCB-Impacted Soil, 100 tons at the unit price per ton of, for a total price of The total amount of the Base Bid, as computed by the undersigned Bidder, is (in words) Dollars and cents (and figures $ ). Bid No. PEB Revised April 20, 2010 Page 5 of 6

12 Item No. ADDITIVE ALTERNATE BID ITEMS Estimated Quantity Description Unit Price Total Price A Tons Excavate, Dispose Off-Site and Backfill PMC Exceedance Soil, the unit price per ton of Dollars and Cents A2. Lump Sum Excavation Dewatering, the lump sum price of Dollars and Cents Respectfully submitted: Signature Address Title Date License Number (if applicable) (SEAL if bid is a corporation) Attest Bid No. PEB Revised April 20, 2010 Page 6 of 6

13 Envar Services Site Improvements Hillard Bloom Shellfish Company Bridgeport, Connecticut SECTION STEEL PIPE PILES (MONOPILES) PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions, apply to this Section. B. The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only. 1. ASTM A 252 Welded and Seamless Steel Pipe Piles (Grade 50). 1.2 SUMMARY A. Section includes steel pipe piles also called monopiles. Fill with sand, not concrete. B. Related Section: Section 09967, Coating of Steel Waterfront Structures, applies to the work under this Section. 1.3 UNIT PRICES A. The Contract Sum: Base the Contract Bid on installing piles, 80 feet long, measured from tip to cutoff, and on the number of piles indicated. B. Measurement: Using data obtained during pile driving, Engineer will calculate actual total length of piles installed. 1. Additional payment for pile lengths in excess of that indicated, and credit for pile lengths less than that indicated, will be calculated at the unit price stated in the Contract, based on net addition or deduction to total pile length 2. Unit prices to include labor, materials, tools equipment and incidentals for furnishing driving, cutting off, capping, and splicing piles and disposing of cutoffs. 3. Test: None. 4. No payment will be made for rejected piles, including piles driven out of tolerance, defective piles, or piles damaged during handling or driving. 1.4 SUBMITTALS A. Shop Drawings: For splices and shoes. Revised April 20, 2010 Steel Pipe Piles (Monopiles) Section Page 1 of 4

14 Envar Services Site Improvements Hillard Bloom Shellfish Company Bridgeport, Connecticut B. Material Certificates: For steel pipe. C. Pile-Driving Equipment: Include type, make, and rated energy per blow of hammer. D. Pile-Driving Records. 1.5 DELIVERY, STORAGE, AND HANDLING A. Deliver piles to Project site in such quantities and at such times to ensure continuity of installation. Handle and store piles at Project site to prevent physical damage. 1. Protect pile coatings and touch up damage to coatings before driving piles. 1.6 PROJECT CONDITIONS A. Assume that it will not be necessary to clear obstructions. B. Site Information: See Plans for available subsurface information. PART 2 - PRODUCTS 2.1 STEEL PIPE PILES A. Steel Pipe: ASTM A 252, Grade 50; seamless or welded. 2.2 CONCRETE AND DOWEL BARS: See SECTIONS and A. Not used. Fill void in pipe with clean sand. 2.3 PILE ACCESSORIES A. Outside Cutting Shoes: Manufacturer's standard, outside-flanged, open-ended cutting shoe, to provide full bearing of pipe pile tip. Fabricate from steel castings as follows: 1. Carbon-Steel Castings: ASTM A 27/A 27M. 2. High-Strength Steel Castings: ASTM A 148/A 148M. B. Splice Coupling: Manufacturer's standard splice coupling, rolled from ASTM A 36/A 36M, carbon-steel bar or cast from heat-treated carbon steel, ASTM A 27/A 27M, Grade 65-35, with interior stop. C. Wing-Type Fender: See Plans. Revised April 20, 2010 Steel Pipe Piles (Monopiles) Section Page 2 of 4

15 Envar Services Site Improvements Hillard Bloom Shellfish Company Bridgeport, Connecticut D. Cover Plate : See Plans. E. T-Bars: See Plans. 2.4 PAINT: See SECTION PART 3 - EXECUTION 3.1 DRIVING EQUIPMENT A. Pile Hammer: See notes on Plans. B. Hammer Cushions and Driving Caps: Between hammer and top of pile, provide hammer cushion and steel driving cap as recommended by hammer manufacturer for type of pile. C. Leads: Optional. 3.2 PILE TESTS A. None. 3.3 DRIVING PILES A. General: Continuously drive piles to penetration into SAND, indicated on the drawings. B. Driving Tolerances: See Notes on Plan. C. Clean out: Not required. D. Cutting Off: Cut off tops of driven piles square with pile axis and at elevations indicated. E. Pile-Driving Records: Maintain accurate driving records for each pile, compiled and attested to by a qualified professional engineer. Include the following data: 1. Project name and number. 2. Name of Contractor. 3. Pile designation. 4. Elevation of tips after driving. 5. Elevation of splices. 6. Type, make, model and rated energy of hammer. Revised April 20, 2010 Steel Pipe Piles (Monopiles) Section Page 3 of 4

16 Envar Services Site Improvements Hillard Bloom Shellfish Company Bridgeport, Connecticut 3.4 TOUCHUP PAINTING A. Clean field welds, splices, and abraded painted areas and field-apply paint as per SECTION DISPOSAL A. Remove cutoff sections of piles from site and legally dispose of them off Owner's property. PART 4 - METHOD OF MEASUREMENT 4.1 No measurement(s) will be made. Work shall be priced on the basis of piles 80 feet long each, of the appropriate wall thickness for each location as indicated on the plans, coated full length. NOTE: An adjustment may be due to the Owner based on the actual installed pile length and the residual value of uninstalled steel pipe. Revised April 20, 2010 Steel Pipe Piles (Monopiles) Section Page 4 of 4

17 Envar Services Site Improvements Hillard Bloom Shellfish Company Bridgeport, Connecticut SECTION 02456A STEEL H-PILES PART 1. GENERAL 1.1. RELATED DOCUMENTS A. Drawings and General Provisions of the Contract, including General and Supplementary Conditions and Special Conditions, apply to this Section SUMMARY A. This Section includes driven foundation pilings. (H-piles) SUBMITTALS (Not Used) 1.4. QUALITY ASSURANCE (Not Used) 1.5. DELIVERY, STORAGE, AND HANDLING A. Deliver materials to Project site in such quantities and at such times to ensure continuity of pile driving operations and adherence to project schedule. B. Store piles in orderly group aboveground and blocked to prevent distortion of members and to minimize exposure to corrosion conditions PROJECT CONDITIONS A. Site Information: Data on indicated subsurface conditions are shown on the Plans. They are not intended as representations or warranties of continuity of such conditions. It is expressly understood that Owner will not be responsible for interpretations or conclusions drawn therefrom by Contractor. The data is made available for the convenience of the Contractor. B. Test Piles: Report on test piles is presented on sheet PT-1. It is expressly understood that the Owner will not be responsible for interpretations and conclusions drawn therefrom by Contractor. The data is made available for the convenience of the Contractor. C. Order Length (of Piles): Revised April 20, The order length (length in the leads) of piles will be as stated on the Plans. 2. The CONTRACTOR is invited to make such probings, or additional borings, as he may deem to be desirable, before ordering piles. The cost of such investigation shall be deemed to be included in the lump sum price bid for the Contract. Steel H-Piles Section 02456A Page 1 of 3

18 Envar Services Site Improvements Hillard Bloom Shellfish Company Bridgeport, Connecticut 3. Splicing is permitted. Splices shall develop the full strength of the pile (axial and bending). Field touch-up of damaged coating is required. Splicing of cut-off pieces into full-length sections is permitted. No limit on number of splices/pile. PART 2. PRODUCTS 2.1. STEEL H-SECTION PILES A. Steel: Hot-rolled, carbon steel structural shapes and plates, complying with ASTM A 572 or A 992 (50 Grade). B. Provide pile point reinforcement as indicated on Plans DRIVING EQUIPMENT A. General: Provide pile driving equipment of type generally used in standard pile driving practice, operated at manufacturer s specified rate, to develop required rated energy per blow. B. Hammer: Provide impact hammer of minimum 15,000 ft.-lb/blow rated energy. C. Vibratory Hammer: Similar to, or of greater energy than, was used to drive the test piles described above. PART 3. EXECUTION 3.1. DRIVING PILES A. General: Drive piles, at locations indicated, to the criteria noted on the Plans. B. Probing: It is intended that the initial driving shall be with a vibratory hammer; probing (multiple insertions) to get through the riprap. Once through the riprap, remove the vibratory hammer; let the pile sit ; and finish driving with the impact hammer to the specified resistance. Special note is made of the need for the piles to be located so that the head of the pile will fit into the socket in the pile cap. To this end, if the pile cannot be driven in a location such that this fit can be achieved, the successive probing shall batter the pile so that the head does fit, with available tolerances in casting of the pile cap and in slanting the pile cap (horizontal alignment) DRIVEN PILES (NOTE: Unless the Contractor can demonstrate that it is not needed, a template shall be provided). Revised April 20, 2010 Steel H-Piles Section 02456A Page 2 of 3

19 Envar Services Site Improvements Hillard Bloom Shellfish Company Bridgeport, Connecticut A. Driving Tolerances: See Notes on Plans B. Plumb and batter: See Notes on Plans C. Damaged or Misdriven Piles: Damaged piles and piles driven outside required driving tolerances will not be accepted. 1. Withdraw piles rejected after driving and replace with new piles. Do not abandon in place. D. Cutting-Off: Cut off tops of driven piles horizontal at elevations indicated. Dispose of excess materials off site TEST PILES/LOAD TESTS See notes on plans. PART 4. METHOD OF MEASUREMENT 4.1. Steel H-Piles will be measured per linear foot for piles driven complete and in place Drilling Through Obstructions for Pile Installation will be measured per linear foot for distance drilled. PART 5. BASIS OF PAYMENT 5.1 Steel H-Piles will be paid for at the Contract Unit Price per linear foot complete and in place. 5.2 Drilling Through Obstructions for Pile Installation will be paid for at the Contract Unit Price per linear foot complete. Revised April 20, 2010 Steel H-Piles Section 02456A Page 3 of 3

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