Shabbona Boat Dock Spec revised 08022019.doc

ILLINOIS DEPARTMENT OF NATURAL RESOURCES

PROJECT SCOPE OF WORK

Date: December 20, 2018 File# 1-19-021

LOCATION:

Shabbona State Park

DeKalb County, Illinois

PROJECT TITLE:

REPLACE COURTESY BOAT DOCKS

PROJECT NARRATIVE:

The Illinois Department of Natural Resources (IDNR) Office of Land Management, is in need of a boat ramp. The Shabbona State Park is located in DeKalb County, Illinois.

SCOPE OF WORK:

IDNR is proposing to replace two boat ramps. The boats ramps must have transfer wheels, so they can be pulled out during the winter.

The first dock is to be a 6’x30’ with a 20’ bridge.

The second dock must be ADA compliant. This dock is to be a “L” shape dock made up of a 8’x52’ section and a 8’x20’ section with a 20’ bridge.

The work consists of building and delivering the docks to the Shabbona State Park. This work will include all equipment, labor, materials, and delivery costs to complete the work.

ATTACHMENTS:

The following documents are included:

1) 20’ Bridge Detail 2) Floating Dock Notes 3) Floating Dock Plan View 4) Transfer Rail Details

5) Plan View of Dock Shape

SPECIFICATIONS:

1.

GENERAL PROVISIONS

1-01

WORK INCLUDES

A.

Base Bid: General Contractor shall provide:

1.

Floating dock system

2.

Walkway ramps and bridge 1-02

RELATED WORK.

A. Specified from the current Capital Development Board Standard Documents for Construction:

1- 00 73 00 - Supplementary Conditions.

2- 01 33 23 – Shop Drawings, Product Data & Samples. “

1-03

SUBMITTALS

A. The Contractor shall submit detailed design calculations and construction drawings in accordance with Section 01 33 23.

B.

Shop Drawings: Shop drawings are original drawings prepared by the Contractor, subcontractor, supplier or distributer which illustrate some portion of the work showing fabrication and/or layout and including setting or erection details.

Layout plan drawing of all docks.

Detail and sectional drawing of all components of the dock system, including, but not limited to, walkway ramps, pipe anchors, cleats, pipe caps, etc.

3.

All Drawings to be sealed by a Registered Professional Engineer licensed to practice in Illinois.

4.

Insure IDNR approval has been granted prior to proceeding.

1-04

QUALITY ASSURANCE

Workmanship:

The floating dock system shall be completely pre-fabricated by the manufacturer and delivered ready for field assembly and installation. All finished metallic structural members shall be free from twists, bends, distortions, and open joints. All exposed parts shall be free of sharp edges and burns. Ends and edges to be rounded or beveled. All welding shall conform to the requirements of the American Welding Society. Openings between deck and adjacent modules are not to exceed ½ inch.

Experience:

The system shall be standard commercial product of a marina manufacturer having no less than five (5) year experience in the design, manufacture, and installation of floating marina structures. Lesser experience may be approved by the IDNR Engineer with substantiated examples of previous similar work.

1-05

WARRANTY

General contractors’ warranty of one (1) year from date of final acceptance and in accord with general requirements.

All composite wood decking shall have a warranty of 25 years from the date of final acceptance.

C.

All structural frames and flotation devices shall have a warranty of ten (10) years from the date of final acceptance. The float and its flotation material shall be 100% warranted against sinking, becoming waterlogged, cracking, peeling, fragmenting, or losing beads.

1-05

DESIGN LOAD CONDITIONS

Dead loads shall consist of the entire weight of the floating structure including all accessories and appurtenances.

Deck surface and structural frame live load shall be equal to 50 PSF (pounds per square foot), applied to the full surface area of the deck. Concentrated 300 pounds plus 33% impact (total 400 pounds) applied over an area 12” x 12”.

Loads applied to floatation units shall include all bridge and walkway loads.

D.

Horizontal Loads:

20 PSI horizontal wind load on all projected surfaces.

Impact load. 15,000 lb. craft, velocity of three (3) feet per second striking the end of a finger dock at 10 degrees to the centerline of that dock.

E.

Bridge/walkway shall be designed for 100 PSF applied to the full surface area. Bridge handrails shall be designed for a 250-pound load applied in any direction and at any point along the handrail.

F.

Top of deck freeboard, under dead load conditions shall be 20-22 inches. In addition, the structural frame shall not float less than two inches (2”) inches above the water. Freeboard under dead load and 50 PSF live load shall not be less than 18”. At those locations with significant wave action, the live load freeboard should be increased to prevent the dock from getting wet.

G.

In order to prevent torsion, racking and twisting sufficient built-in torsional resistance shall be installed such that no more than three inches (3”) variation in normal freeboard per 100 feet of length, as measured in any direction, under any possible combination of specified loads, excluding wave action loads.

H.

Slope and Height Differences under Dead Load:

1. For main or header docks, the slope shall be no more than ½ inch per six feet (6’) length in any direction. For finger docks, the outer end of the dock shall not be more than 2 inches higher than where it attaches to the center dock. In addition, finger docks shall not have a cross slope greater than ½” per 3 feet width.

2. The height difference between two (2) adjacent dock units shall not be greater than 1/8 inch.

I.

Where bridges/walkways/ramps attach to the floating structure, there shall be floats attached either under the bridge or under the end of the structure, so that the structure remains level under dead load conditions, and that there is no excessive deflection under live load conditions.

J.

Structures are to be factory assembled in the largest possible shippable units. Modular structures must be designed for quick and easy assembly and disassembly, with a minimum of bolts and connections.

2.

PRODUCTS

2-01

FLOATING DOCK

The use of a brand name is for describing the standard of quality, performance, and characteristics desired and is not intended to limit or restrict competition. "Or equal" submissions will not be rejected because of minor differences in design, construction or features that do not affect the suitability of the product for its intended use. Burden of proof that the product is equal is on the bidder

Acceptable or Equal Manufacturers:

2-02

MATERIALS AND EQUIPMENT

Structural frame and other structural parts:

All floating units shall have a structural metal frame to which the flotation, decking, connectors and anchorage shall be attached.

2.

Structural frames for bridges, ramps and floating units shall be of all welded construction. Welding shall conform to the requirements of the latest edition of the American Welding Society (AWS) Specifications. Welds must be performed by qualified Code Welders.

3. Structural frame and other structural members shall be 3/16” minimum thickness steel or aluminum alloy. Members shall be rolled structural shapes with ASTM A-36 material and galvanized in accordance with ASTM A-123 requirements. All welds over galvanized material shall be thoroughly cleaned and coated with two coats of cold galvanized compound. All aluminum frames shall comprise of alloy 6061-T6, and be shop welded into full size units without bolting being necessary. Stainless steel fasteners must be used on aluminum frames.

4. The sub-structural steel frames shall all be welded truss design made from angles, structural steel shapes or rounds and straps of sufficient strength to withstand design stresses. All members shall not be less than 1-1/2” x 1-1/2” x 3/16” angle after fabrication.

Flotation:

Flotation units shall be positively fastened to the structural frame and shall be capable of easy removal and field replacement. The units shall be of such size and quantity to maintain the freeboard listed in these specifications and to maintain stability when accessing the dock from either side.

The flotations shall be 1.1 pounds per cubic foot (PCF) polystyrene with a thick wall polyethylene float shell conforming to the following specifications:

Characteristic

Standard

Composite Wood Deck:

1. Composite HDPE plastics, polymer/lumber composites such as:

a. Trex Fire Defense Decking (www.trex.com)

b. Timbertech – Docksider Plank (www.timbertech.com)

c. Polyforce (www.tangentusa.com)

2. 2x6 nominal size boards.

3. Wood-grain surface.

4. 25-year warrantee against rot, splinters, decay, structural damage from termites, or fungal decay under normal use.

5. Color to be selected by site staff.

6.

Planks shall be fastened to the structural frame with bolts or screws. There shall be at least two fasteners at every structural cross support. Fasteners shall be flush with the deck surface and shall be of stainless or galvanized steel which is compatible with the material in the structural frame.

D.

Bridges:

Bridges shall be six to eight feet (6 -8 ft) in width with attachments to shore as shown on the drawings. A metal transition piece shall extend from the bridge to form a smooth, anti-tripping hazard, transition to the concrete. The bridge frame shall be constructed of galvanized steel members of sufficient size to meet design loads as specified herein. The deck shall be the same as the floating dock. Handrails shall be designed in accordance with the ADA Accessibility Codes. Bridges shall be fitted with wheels for easier removal during the winter.

Guard Rails shall be provided on all bridges and gangways between the shore line and floating docks. These guard rails shall be designed to prevent children and adults from falling off the bridge onto the riprap or shallow water below. Hand rails should be attached to the guard rail in accordance with the Illinois ADA Accessibility Code.

E.

Anchorage:

Anchorage of the floating structure shall be designed by the dock manufacturer and shall be fully compatible with the bridge/dock system. Spud poles shall be mounted with the footprint of the dock, either internally or on the ends of the structure, in order to provide a smooth transition along both sides. Whether internal or end section mounting is used, any bracket design shall facilitate for the quick detachment of the docks for removal. If non-telescoping spud poles are used, the top poles shall be cut to the same elevation and a pile cap shall be provided on the top of each pole.

F.

Wood Rubrail:

The floating unit shall have a wood rubrail around the entire perimeter and shall be nominal 2” x 12” Southern Yellow Pine, Grade 1 K.D., and grade stamped in accordance with current grading rules of the Regional Lumber Association for species, with stamp shown.

Wood shall receive the same preservative treatment as specified for the deck.

1. The wood rubrail shall be attached to the structural frame with non-protruding thru-bolts on maximum centers of four (4) feet. Bolting materials shall be compatible with the base frame material and galvanized to protect against corrosion. The attachment method shall allow for easy replacement in the event of damage.

2. In many cases, depending on the size of the boats using the boat docks, a second 2” x 6” wood rubrail shall be installed horizontally below the original rub-rail. The second rubrail is necessary to prevent smaller boats from crashing into the dock frame during rough water conditions.

G.

Vinyl Bumpers:

Vinyl bumpers shall be located around the perimeter of the floating unit and attached to the wood rubrail with galvanized, non-protruding fasteners. The bumpers shall run continuously around the perimeter and shall be extruded vinyl conforming to the following specifications:

Characteristic

Standard

H.

Tie-Up Cleats:

10” tie-up cleats shall be installed along both sides of the docks at 6-8 ft intervals. These cleats shall be firmly attached to the dock for easy access from the water. Cleats shall be fabricated of ¾” diameter steel rod and ¼” thick steel plate, hot dipped galvanized after fabrication. Aluminum alloy cleats with the same dimensions will also be accepted.

I. Special requirements:

The ADA dock and transfer bridges will have the following supplied by the manufacturer and installed per the manufacturer’s Specifications:

1. Dock Railing. Provide a 42” high 3-line rail on the non-loading side of the dock.

2. Transfer Rail. Provide a transfer railing system manufactured for disabled access. Provide 60 inches of clear space at every ten feet at a minimum.

3. Swing gate. Provide one swing gate per dock to extend over the water a minimum of three feet.

4. Ladder. Provide one permanent ladder at the end of the 52’ dock section.

5. Edge protection. Provide a toe rail that is 4” high (maximum) and 2” wide (maximum) extending around the entire perimeter of the floating dock.

6. The 52’ dock section shall be equipped with an ADA transfer railing system manufactured for disabled access and supplied by the dock manufacturer. This system shall consist of a series of 1 ½” diameter pipes and clamps to allow for disabled users to transfer from the dock into a boat.

J.

Wheel system:

Docks shall be fitted with wheels for easier removal during the winter.

3.

EXECUTION

3-01

Assembly and Installation:

Structure modules shall be unloaded, assembled, and floated at the site. Maintain and protect all components. Install in accordance with the manufacturer’s instructions and specifications.

Pipe spud depth and location to be indicated on layout plan of docking system.

Project Requirements:

1) Duration

Quotes shall be good for ninety (90) calendar days after the submittal date, or for an extended period of time, if agreed to in writing by the Contractor and DNR.

2) Prevailing Wage Rates

The Contractor must comply with provisions of the Prevailing Wage Act, 820 ILCS 130/, and the

Illinois Procurement Code (30 ILCS 500/25-60), which applies to the wages of laborers, mechanics and other workers employed in any public works. The Contractor is responsible for contacting the Illinois Department of Labor (DOL) at 217/782-6206 or

(http://www.state.il.us/agency/idol) to ensure understanding of prevailing wage requirements.

3) Certified Payroll

State law 820 ILCS 130/5 requires all contractors and sub-contractors working on state construction projects to submit certified payroll records to the Department of Natural

Resources. The payroll records must include all workers employed by contractors on the project.

In accordance with 820 ILCS 130/5, the contractor and sub-contractor(s) shall make and keep, for a period of 5 years from the date of the last payment made on or after January 1, 2014 (the effective date of Public Act 98-328) on a contract or subcontract for public works, records of all laborers, mechanics, and other workers employed by them on the project.

No later than the 15th day of each calendar month, the contractor shall file a certified payroll for the immediately preceding month with the Department of Natural Resources.

4) Small Business Set-Aside

The Contractor awarded the project must be registered as a small business, as required by the Small Business Set-Aside Program. (For complete requirements, to become registered, or to certify your business is in the Small Business Set-Aside Program, visit the Illinois Procurement Gateway (IPG) at https://ipg.vendorreg.com/ or call (217) 782-1270.

5) Insurance

Contractor shall, at all times during the term of this contract and any renewals or extensions, maintain and provide a Certificate of Insurance naming the State as an additionally insured for all required bonds and insurance. Certificates may not be modified or canceled until at least thirty (30) days’ notice has been provided to the State. Contractor shall provide: (a) General Commercial Liability insurance in the amount of $1,000,000 per occurrence (Combined Single Limit Bodily Injury and Property Damage) and $2,000,000 Annual Aggregate; (b) Auto Liability, including Hired Auto and Non-Owned Auto (Combined Single Limit Bodily Injury and Property Damage), in amount of $1,000,000 per occurrence; and (c) Worker’s Compensation Insurance in the amount required by law. Insurance shall not limit Contractor’s obligation to indemnify, defend, or settle any claims.

6) Permits and Licenses Permits and licenses necessary for the execution of the work shall be secured and paid for by the Contractor.

7) Change Orders

Change orders must be determined by the DNR Architect/Engineer to be germane to the original contract and that the price is fair and reasonable. When changes in or modifications to the work become necessary, the Contractor shall submit an itemized cost for the work and shall include appropriate documentation to support the cost for the labor, material and equipment. A fully executed Contract Change order, signed by both parties, must be in place for any contract changes to be effective.

8) Inducement Resolution

All or a portion of this project may be paid or reimbursed from the proceeds of tax-exempt bonds subsequently issued by the State.

9) Payment

Payments, including late payment charges, will be paid in accord with the State Prompt Payment Act and rules when applicable, 30 ILCS 540/; 74 III. Adm. Code 900. This shall be the Contractor’s sole remedy for late payments by the State. Payment terms contained in Contractor’s invoice(s) shall have no force or effect.

10) Bid Submittal

Electronic bids should be submitted through BIDBUY website. Refer to the BIDBUY Solicitation documents.

11) Bid Submittal Date and Time

BIDBUY website will have this information. Refer to the BIDBUY Solicitation documents.

12) Term of Contract

All work shall be completed by 120 days after contract has been awarded, unless agreed to by both the Contractor and DNR, that a time extension is warranted.

13) Contract Award

Contract award will be made to the lowest, responsible, qualified bidder. The Department of

Natural Resources reserves the right to reject any or all bids.

14) Contact Information

Project Engineer:

Michael Bauling

Regional Engineer

Illinois Department of Natural Resources

Phone: 815-631-3765

E-mail:

Michael.Bauling@illinois.gov

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