ATTACH A_Revised _ Cost Schedule .pdf

ATTACHMENT A - STATEMENT OF WORK

BURRELL LOCK REHABILITATION

I. BACKGROUND

The Burrell Lock is located on Haines Creek connecting Lake Griffin and Lake Eustis in Lake County, Florida. The lock was constructed in 1957 and is used primarily for navigation between the lakes by fishing boats and pleasure craft. The lock walls were originally constructed of steel sheet piling with two concrete monoliths to support the upstream and downstream lock gates. A major lock rehabilitation was undertaken in 2002, during which time new concrete walls were constructed to replace the deteriorated sheet piling. The lock structure (including the lock chamber, gate monoliths and the lock inlet and outlets) is approximately 167 feet in length. The interior lock chamber is approximately 75 feet long, 29 feet wide, and 15 feet deep. The upstream and downstream gate monolith sections are approximately 20 feet long, 30 feet wide, and 15 feet high. The inlet section is approximately 22 feet long, 30 feet wide, and 13 feet high. The outlet section is approximately 17 feet long, 30 feet wide, and 16 feet high. The District engaged Black & Veatch Corporation to assist in the design of the hydraulic, slide gate, and electrical system components.

II. OBJECTIVES

The objective of this project is to repair the concrete surfaces, paint the lock inflow and outflow pipes, repair and paint the lock mitre gates, provide new mitre gate hydraulic operators, replace the upstream and downstream slide gates and provide new hydraulic operators, replace controls in the control building for the lock mitre and slide gates, and install manatee protection screens. Other miscellaneous work includes replacement of wood fenders, navigation lights, fire extinguisher cabinets, floatation rings, staff gages, signs, lock access gate and ladder, and removal and reinstallation of a manatee detection system. This work is necessary to ensure the continued functionality of the lock.

III. SCOPE

Contractor shall provide all materials, labor, and equipment necessary for the rehabilitation of the Burrell Lock as described in this Statement of Work and as detailed in the Exhibits. Generally, the scope shall include installing temporary dewatering bulkheads, pumping for dewatering, joint inspection of the structure to determine the extent of repairs required, concrete surface preparation, concrete surface patching, concrete crack repairs, concrete surface coating, surface preparation and coating of miscellaneous metals, repair and painting of the lock mitre gates, replacement of the lock slide gates, new hydraulic operators and controls for the mitre and slide gates, installation of manatee protection screens, replacement of the lock fenders, and replacement of other miscellaneous items.

District Responsibilities:

1. The District will provide public notice for closure and opening of the lock.

2. Provide Contractor with access to the site with a temporary lock combination.

Coordinate with Contractor on access restrictions or limitations.

3. Coordinate with Contractor in advising the local Florida Fish & Wildlife Conservation Commission (FWC) of any problems with nuisance animals, snakes and pests that may interfere with the project.

4. Review submittals within 10 business days.

Contractor Responsibilities:

1. Schedule a preconstruction meeting with District staff and submit a construction schedule at least five days before the meeting.

2. Contractor shall properly schedule and staff the project for completion within the contract required timeframes.

3. Close all construction and storage areas to the public and provide all safety and traffic control necessary for completing the project. This includes supplying and maintaining barricades, fencing, temporary gates, debris screens, signage, and securing equipment and lay-down areas.

4. Prohibit public access to the lock and dam.

5. Provide submittals to the District in a timely manner. Procure and provide any materials needed to complete the project as approved by the District. Contractor shall be responsible for any unused materials or additional costs incurred that Contractor orders, places or delivers prior to approval in writing by the District.

6. Contractor shall complete all items listed under Task Identification.

7. Contractor shall comply with the conditions contained in the Florida Department of

Environmental Protection (FDEP) General Permit (Exhibit 8) and USACE 404 Permit (both obtained by the District). The USACE Permit will be provided as an addendum once it is issued.

Contractor shall obtain all other required permits.

8. Contractor shall be responsible for supply of water needed to complete the Work. Electric power is available on-site; however, Contractor shall supply temporary electric power as necessary when work is performed on the electrical system.

IV. TASK IDENTIFICATION:

Contractor shall provide all material, labor, and equipment required to complete the following tasks:

1. Mobilization

Prepare and submit work plan, safety plan, and construction schedule. Mobilize all labor, equipment, and materials to the site. Establish material staging areas. Contractor shall locate all utilities, including private lines, prior to digging, trenching, or excavation. Contractor shall protect all utilities, existing structures, roads, benchmarks, monuments, and other improvements from damage whether or not shown on the drawings. Replacement cost for all damaged or disturbed items shall be borne by Contractor. Provide and maintain all safety, signage, fencing, and traffic control necessary.

2. Erosion and Sediment Control

Supply, install, and maintain all erosion, sediment, and dust control measures. Conduct all construction operations in a manner that does not cause violations of state water quality standards. Provide all temporary erosion and sediment control measures (silt fence, turbidity barrier, temporary stabilization, etc.) as required for compliance with Federal, State, and local laws, rules, and regulations.

3. Temporary Dewatering Bulkheads

Contractor shall install the District-provided dewatering bulkheads and structural steel supports.

When installing the bulkheads, Contractor shall coordinate with District staff to ensure that no manatees are present in the lock or near the approaches to the lock. Contractor shall supply and install the temporary access walkways and steel support. Upon completion of construction, Contractor shall remove the bulkheads and access walkways and load onto District transport vehicle. Standard Manatee Construction Conditions must be observed for in-water work, including during installation and removal of bulkheads (see Exhibit 9).

Contractor shall monitor the water levels throughout the duration of the project. If overtopping of the bulkheads is imminent, Contractor shall evacuate the work area.

4. Pumping/Dewatering

Provide the pumping means to remove water from the work area, as necessary for completion of the work.

5. Remove Manatee Sonar Detection System and Manatee Protection Screens

Verify operational condition of sonar detection system (“SDS”) on-site with District Lock Tending Project Manager prior to removal. Remove SDS (including all conduit, wiring, displays, sonars, ancillary equipment/hardware, etc.) and store in a climate-controlled environment for later reinstallation. Remove the four existing manatee protection screens in front of the four slide gates (within the lock) and store on-site for reinstallation upon completion of construction.

6. Remove Sediment and Debris

Remove and dispose all sediment and debris from the structure work area to an offsite location.

Disposal methods and location shall be in accordance with all applicable local, state, and federal regulations and requirements.

7. Pressure Washing All Concrete and Steel Surfaces

Pressure wash all concrete and steel surfaces including lock walls, footings, embedded steel, and mitre gates.

8. Demolition – Lock Mitre Gate Operators and Controls

Remove and dispose four lock mitre gate operators and control panels located in the lock control building.

9. Demolition – Slide Gates, Operators and Controls

Remove and dispose four lock slide gates, operators, and control panels located in the lock control building.

10. Demolition – Abandoned Electrical Boxes and Conduits

Remove and dispose four abandoned electrical control boxes as shown in Exhibits 5.

11. Demolition and Replacement – Upstream and Downstream Fenders

Remove and dispose upstream and downstream timber fenders and replace pressure treated wood as specified, in Exhibit 5. Provide new galvanized bolts, nuts, and washers sized according to the existing fasteners.

12. Demolition and Replacement – Internal Lock Fenders

Remove and dispose internal lock timber fenders. Upon completion of the concrete repairs, replace with 2x6 recycled plastic lumber. Provide new stainless steel drilled anchors, nuts, and washers sized according to the existing fasteners.

13. Demolition and Replacement – Navigation Lights

Remove and dispose four navigation lights, two upstream and two downstream and replace with four new solar marine beacon lights as specified in Exhibit 5.

14. Demolition and Replacement – Staff and Depth Gages

Remove and dispose two District staff gages and one depth gage and replace as specified Exhibit 5.

15. Demolition and Replacement – Fire Extinguisher Cabinets

Remove and dispose four fire extinguisher cabinets and replace with four new cabinets as specified in Exhibit 5.

16. Demolition and Replacement – Floatation Rings

Remove and dispose four floatation rings and replace as specified in Exhibit 5.

17. Demolition and Salvage Lock Signs – Replace and Reinstall Lock Signs

Remove and dispose 26 signs and replace 23 signs as specified. Remove and store seven (7) signs and replace upon completion of lock repairs, as specified in Exhibit 5.

18. Lock Mitre Gate Rehabilitation

Remove the lock mitre gates, perform joint inspection to determine final scope of repairs, blast and paint steel gate components, checkered plate, and hinge support brackets as specified in Exhibit 5. Replace gate grease lines, seals, and hardware. I

18.1 Lock Gate Steel Repairs (If Required)

Patch gate steel and hinge support brackets as needed and as approved by the District.

18.2 Lock Gate Hinge Pins (If Required)

Inspect and replace the hinge pins as needed and as approved by the District.

18.3 Lock Gate Hinge Bearings (If Required)

Inspect and replace the hinge bearings as needed and as approved by the District.

18.4 Lock Gate Lumber Components (If Required)

Inspect and replace wood components as needed and as approved by the District.

19 Concrete – Hydro demolition of Eroded Surfaces (If Required)

The extent of hydro demolition will be determined during construction as required by the existing conditions encountered. If needed and as approved by the District, remove deteriorated concrete by high pressure hydro blasting to achieve a sound concrete surface, as specified in Exhibit 5.

20 Concrete – Isolated Patching (If Required)

Identify and patch any isolated spalls with the repair products and provide moist curing as specified in Exhibit 5 and as approved by the District.

21 Concrete – Rebar Repair (If Required)

Prepare the surface of exposed rebar and/or splice additional rebar as specified in Exhibit 5, prior to patching and as approved by the District.

22 Concrete – Crack Repair (If Required)

Identify and repair cracks and provide moist curing as specified in Exhibit 5 and as approved by the District.

23 Concrete – Saw cutting (If Required)

Prior to applying repair mortar, cut concrete along edge of the eroded concrete surface areas to allow for a smooth transition with the adjoining surface and as approved by the District.

24 Concrete – Eroded Surface Repair (If Required)

Apply the repair products to the areas of surface erosion (hydro demolition areas) and provide moist curing as specified in Exhibit 5 and as approved by the District.

25 Concrete Testing Services (If Required)

Contractor shall retain the services of an independent testing laboratory, approved by the District, for the sampling and testing of the repair mortar and cast-in-place concrete. The testing requirements shall be as specified on in Exhibit 5 and as approved by the District. Test reports shall be signed and sealed by a Florida-licensed professional engineer and submitted to the District.

26 Concrete – Surface Coating

Upon completion of all concrete repair work, apply the concrete surface coating to all exposed concrete surfaces and provide moist curing as specified in Exhibit 5.

27 Concrete – Hydraulic Cylinder Pits

Demo portion of concrete sidewalks and construct four hydraulic cylinder pits as detailed in Exhibit 5.

28 Paint Lock Inflow and Discharge Pipes

Inspect, repair leaks, prepare surfaces, and paint the two upstream lock fill pipes and the two downstream discharge pipes as specified in Exhibit 5.

29 Blast and Paint Embedded Steel

Prepare surfaces and paint embedded steel items as specified in Exhibit 5.

30 New Handrail, Lock Access Gates and Ladder

Fabricate and install new handrails, lock access gates, and ladder as specified in Exhibit 5.

31 New Water Line

Install new water line and bib as specified in Exhibit 5.

32 Install Lock Mitre Gates and New Hydraulic Operators

Procure new hydraulic operators. Upon completion of lock repairs, reinstall lock mitre gates and install new hydraulic operators as specified in Exhibits 1 and 5.

33 Install New Slide Gates and New Hydraulic Operators

Procure new slide gates and hydraulic operators. Upon completion of lock repairs, install new slide gates and new hydraulic operators as specified in Exhibits 1, 2, and 5.

34 Hydraulic Power Units

Procure and install new hydraulic power units and connect to the mitre gate and slide gate actuators, as specified in Exhibits 1-5.

35 New Controls for Lock Gates and Slide Gates Operators

In the lock control building, supply and install new control panels for the mitre gate operators and the slide gate operators. Install new conduits and wiring (power and controls) to connect to the four mitre gates and the four slide gate operators. Connect power and perform dry test operation of all gates and operators and adjust as needed. After lock is flooded, test operation of all gates and operators under normal operating conditions and adjust as needed.

In the electrical building, remove existing 40A circuit breaker at existing main distribution panel (MDP), electrical feeder to double throw switch, and feeder to existing panel DP-2. Demolish existing panel DP-2 and slide gate contactors. Install new breaker at existing MDP, new feeder and new electrical panelboard as specified, in Exhibits 3 and 4.

Procure and install three stilling wells with submersible pressure sensors as specified in Exhibit 1 and 4. Install new conduits and wiring (power and controls) to connect the submersible pressure sensors.

36 Re-install Manatee Protection Screens

Upon completion of construction, re-install the four existing manatee protection screens in front of the four slide gates, located within the lock.

37 Reinstall Manatee Sonar Detection System

After rehabilitation work is complete, the SDS shall be reinstalled back to its original configuration. This will include underwater calibration, using diver services, after the dewatered area is re-flooded. The final configurations in which each sonar is affixed must be approved by the District Lock Tending Project Manager. Any component(s) of the SDS that become lost or damaged during the project shall be replaced by Contractor at no cost to the District.

38 As-built Survey

Contractor shall maintain a complete set of contract documents including drawings and specifications at the job site clearly marked to reflect all as-built conditions. Upon completion of the project, Contractor shall submit these annotated drawings and specifications to the District.

Contractor shall also submit an as-built site survey signed and sealed by a Florida licensed Professional Land Surveyor. Electronic files (dwg and pdf) and two hard copies are required.

39 Site Cleanup and Demobilization

Demobilize, clean site, and remove all erosion control measures. Restore final grading to original condition including grass. All erodible ground areas and slopes disturbed during construction shall be revegetated with sod, wetland species, or District approved alternate methods within 72 hours after completion of the construction activity. Contractor shall assume all responsibility for repairs to the utilities and other site improvements damaged during construction. Additionally, the Work will be considered complete only after all rubbish and unused material due to or connected with the Work has been removed and the premises left in a condition satisfactory to the District.

All property disturbed or damaged during prosecution of the Work shall be restored to its former condition or better at no additional expense to the District. Final payment will be withheld until such cleanup is completed and approved by the District.

40 Daily Overflow Impact Fee

This item represents the maximum daily fee that Contractor will be allowed to charge the District (on a daily basis), if water levels overtop the bulkheads. All costs associated with repair to any existing work affected by the cofferdam overflow, as well as work-related delays, must be included in this daily amount. All amounts under the “Daily Impact Fee” will be authorized in writing by the District’s Project Manager through issuance of a District Supplemental Instruction (DSI) form. Contractor is not entitled to receive any unspent or remaining funds in the Daily Impact Fee item. The number of days included in the cost schedule is an estimate and will be adjusted according to the actual number of days of overflow incurred.

41 Supplemental Work Allowance

If necessary, this item will be used for increases within the amount set forth on the Cost Schedule or negotiated price if the item is not included in the cost schedule, due to District approved changes in the unit price quantities, unforeseen site conditions, or minor changes to the work.

V. TIMEFRAMES & DELIVERABLES

1. Contractor shall begin work within 15 days of the Effective Date. The Effective Date is the date upon which the last party to this Agreement has dated and executed the same.

2. Burrell Lock must remain open until April 1, 2025, and resume operation by October 30, 2025.

All work requiring Burrell Lock to be closed must be completed, including any punch list items, within this timeframe.

3. All work shall be completed, and the site demobilized in accordance with the plans and Statement of Work before November 30, 2025.

VI. BUDGET

Contractor shall submit monthly itemized invoices as set forth in Paragraph 6.(a) of the Agreement.

Additionally, quantities may vary for those items requiring a “per unit cost” and the total quantities of these items will be determined during construction. The District reserves the right to increase, decrease, or delete any class, item, or part of the Work at the stated unit prices in determining the value of a change order.

EXHIBITS, listed below, will be available upon request. A signed District Standard Confidentiality Agreement will be required to be signed before release.

Exhibit 1: Hydraulic System Specifications, prepared by Black & Veatch Corporation, dated 8/7/2024 Exhibit 2: Slide Gate Specifications, prepared by Black & Veatch Corporation, dated 8/7/2024 Exhibit 3: Electrical Specifications and Submittal Procedures, prepared by Black & Veatch Corporation, dated 8/7/2024 Exhibit 4: Electrical Equipment Installation Specifications, prepared by Black & Veatch Corporation, dated 8/7/2024 Exhibit 5: Burrell Lock Rehabilitation Civil and Structural bid drawings, prepared by SJRWMD, dated 7/19/2024 Exhibit 6: Burrell Lock Rehabilitation Mechanical and Electrical bid drawings and specifications prepared by Black & Veatch Corporation, dated 8/7/2024 Exhibit 7: Parker Data Sheets, compiled by Black & Veatch Corporation

Exhibit 8: Burrell Lock Rehabilitation ERP General Permit, dated March 22, 2024.

Exhibit 9: Standard Manatee Construction Conditions for In-Water Work, US Fish and Wildlife Service.

COST SCHEDULE

Include this form in the response (TAB 1)

Bid to be opened at 2:00 p.m., October 11, 2024

To: ST. JOHNS RIVER WATER MANAGEMENT DISTRICT

In accordance with the advertisement requesting bids for the Burrell Lock Rehabilitation, subject to the terms and conditions of the Agreement, the undersigned proposes to perform the Work for the costs contained in the following schedule (fill in all blanks). The Agreement will be awarded to the lowest responsive and responsible Respondent for the Total Cost (also known as the “Total Bid Cost”). Respondent should not have any expectation or promise as to the quantities listed below but rather will be prepared to complete the entire Project for the Total Bid Cost. Respondent’s Total Bid Cost in the schedule below must be fixed and guaranteed for the term of the Agreement, regardless of the actual quantities of Work required by the District.

Respondents are reminded to refer to “PREPARATION AND ORGANIZATION OF BID DOCUMENTS” for information to be included with the bid package.

ITEM

NO.

DESCRIPTION ESTIMATED

QUANTITY

UNIT

PRICE

TOTAL

AMOUNT

1 MOBILIZATION 1 LS* $ $

2 EROSION/SEDIMENT CONTROL 1 LS $ $

3 TEMPORARY DEWATERING BULKHEADS 1 LS $ $

4 PUMPING/DEWATERING 1 LS $ $

5 REMOVE MANATEE SONAR DETECTION SYSTEM

AND MANATEE SCREENS

1 LS $ $

6 REMOVE SEDIMENT AND DEBRIS 50 CY** $ $

7 PRESSURE WASH ALL CONCRETE AND STEEL

SURFACES

12,800 SF*** $ $

8 DEMO - LOCK MITRE GATE OPERATORS AND

CONTROLS

4 EACH $ $

9 DEMO - SLIDE GATES, OPERATORS, AND

CONTROLS

4 EACH $ $

10 DEMO - ABANDONED ELECTRICAL BOXES AND

CONDUITS

4 EACH $ $

11 DEMO AND REPLACE - UPSTREAM AND

DOWNSTREAM FENDERS

1 LS $ $

12 DEMO AND REPLACE - INTERNAL LOCK FENDERS 1 LS $ $

13 DEMO AND REPLACE - NAVIGATION LIGHTS 4 EACH $ $

14 DEMO AND REPLACE - STAFF AND DEPTH GAGES 1 LS $ $

15 DEMO AND REPLACE - FIRE EXTINGUISHER

CABINETS

4 EACH $ $

16 DEMO AND REPLACE - FLOATATION RINGS 4 EACH $ $

17 DEMO/SALVAGE LOCK SIGNS -

REPLACE/REINSTALL

1 LS $ $

18 LOCK MITRE GATE REHABILITATION 4 EACH $ $

ITEM

NO.

DESCRIPTION ESTIMATED

QUANTITY

PRICE

TOTAL

AMOUNT

18.1 LOCK GATE STEEL REPAIRS (IF REQUIRED) 200 LBS $ $

18.2 LOCK GATE HINGE PINS (IF REQUIRED) 12 EACH $ $

18.3 LOCK GATE HINGE BEARINGS (IF REQUIRED) 12 EACH $ $

18.4 LOCK GATE LUMBER COMPONENTS (IF

REQUIRED)

180 LF**** $ $

19 CONCRETE - HYDRODEMOLITION OF SURFACES

(IF REQUIRED)

400 SF $ $

20 CONCRETE - ISOLATED PATCHING (IF

REQUIRED)

30 CF $ $

21 CONCRETE - REBAR REPAIR (IF REQUIRED) 30 LF $ $

22 CONCRETE - CRACK REPAIR (IF REQUIRED) 200 LF $ $

23 CONCRETE - SAWCUTTING (IF REQUIRED) 100 LF $ $

24 CONCRETE - ERODED SURFACE REPAIR (IF

REQUIRED)

400 SF $ $

25 CONCRETE - TESTING SERVICES (IF REQUIRED) 1 LS $ $

26 CONCRETE - SURFACE COATING 9,200 SF $ $

27 CONCRETE - HYDRAULIC CYLINDER PITS 22 CY $ $

28 PAINT LOCK FILL AND DISCHARGE PIPES 4 EACH $ $

29 BLAST AND PAINT EMBEDDED STEEL 1 LS $ $

30 NEW HANDRAIL, LOCK ACCESS GATE AND

LADDER

1 LS $ $

31 NEW WATER LINE 65 LF $ $

32 INSTALL LOCK MITRE GATES AND NEW

HYDRAULIC OPERATORS

4 EACH $ $

33 INSTALL NEW SLIDE GATES AND NEW

HYDRAULIC OPERATORS

4 EACH $ $

34 HYDRAULIC POWER UNITS 4 EACH $ $

35 NEW CONTROLS FOR LOCK GATE AND SLIDE

GATE OPERATORS

1 LS $ $

36 INSTALL MANATEE PROTECTION SCREENS 4 EACH $ $

37 REINSTALL MANATEE SONAR DETECTION

SYSTEM

1 LS $ $

38 AS-BUILT SURVEY 1 LS $ $

39 SITE CLEANUP AND DEMOBILIZATION 1 LS $ $

40 DAILY OVERFLOW IMPACT FEE 10 DAYS $ $

41 SUPPLEMENTAL WORK ALLOWANCE $125,000

TOTAL BID COST

* LS = Lump Sum ** CY = Cubic Yard *** SF = Square Feet ****LF=Linear Foot