2._PROJECT_SPECS_BOARDING_FLOAT.pdf

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UNITED STATES DEPARTMENT OF AGRICULTURE

FOREST SERVICE

REGION FIVE

SHASTA-TRINITY NATIONAL FOREST

BOARDING FLOATS

TRINITY LAKE

February, 2006

Prepared by:

Lampe Engineering

3060 Thorntree Drive #90

Chico, CA 95973

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SECTION 01010

SUMMARY OF WORK

SHASTA AND TRINITY LAKE LAUNCH RAMP FLOATS

PART 1 - GENERAL

1.1 SECTION INCLUDES:

A. Description of work.

B. Owner responsibility.

C. Contractor use of site.

1.2 DESCRIPTION:

A. Work shall consist of the manufacturer and installation of courtesy boarding floats at various locations on Trinity Lake. This location will receive three (3) 20 foot long by 8 foot wide boarding float sections, and one(1) 16 foot long by four(4) foot wide gangplank section. Boarding floats shall be galvanized steel frame with lightweight concrete decking and shall be connected to an existing rail guidance system.

B. Boarding floats shall be constructed to the requirements of the State of California, Department of Boating and Waterways and shall have galvanized steel framing members with 2” thick lightweight aggregate concrete decking. Floats shall be connected to existing single rail guidance and anchorage systems by means of a steel trolley with steel rollers, and ¼ inch anchor chain from the trolley to the boarding float. Gangplanks shall be fabricated from aluminum tubing and decking material as shown on the drawings.

1.3 LOCATION:

A. Boarding floats shall be installed at the following locations on Trinity Lake:

1. Trinity Center Launch Ramp (existing)

B. The Project Owner is the U.S. Forest Service, Shasta-Trinity National Forest, 3644

Avtech Parkway, Redding, CA 96002.

1.4 GOVERNMENT RESPONSIBILITY:

A. The Shasta-Trinity National Forest responsibility for project construction includes:

1. Review and approve shop drawings, product data and submittals from the Contractor.

2. Prepare and approve Contractor payment invoices and final payments.

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3. Review and authorize contract change orders and/or extra work.

4. Provide project inspection and approval of Contractor’s work.

5. Provide access to the site for performance of specified work.

6. Provide Contractor access to the site for the purpose of gathering bidding information and for the erection of the facilities.

1.5 CONTRACTOR’S USE OF PREMISES:

A. Construction camp within the recreation site will not be allowed without specific approval by the Government.

B. The Contractor shall conduct his operations to minimize inconvenience to the existing campground and owners.

C. Storage of construction materials shall be limited to those areas designated and approved by the Government.

D. The Contractor shall comply with all legal load requirements of the State of California and

County Jurisdictions when operating on recreation area access roads. Damage to existing roadways from equipment operation or excessive loads shall be repaired by the Contractor at no additional cost to the Government.

1.6 FIELD VERIFICATION:

A. The Contractor shall field-verify all new and existing dimensions and field conditions prior to starting work or ordering products.

1.8 CONTRACTOR-FURNISHED ITEMS:

A. The Contractor shall furnish all labor, materials and equipment necessary for the completion of the work, as specified.

1.9 GOVERNMENT FURNISHED ITEMS:

None

PART 2 - PRODUCTS

Not Used.

PART 3 - EXECUTION

END OF SECTION

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SECTION 01300

SUBMITTALS

PART 1 - GENERAL

1.1 DESCRIPTION: The work of this section consists of submittal requirements before and during construction.

1.2 SCHEDULES: As soon as possible after Notice of Award and before beginning any work, submit Progress Schedule and Schedule of Values as a package. The Government will review the Progress Schedule and the Schedule of Values for format and content.

A. Progress Schedule: Submit four copies of Progress showing estimated starting and completion dates for each phase of fabrication, and scheduled delivery dates for the various locations. Progress payments may be issued for materials on hand during the fabrication process, and for partial completion of the fabricated floats. The first progress payment will not be issued until an acceptable progress schedule is submitted, and verification of fabrication has been performed.

B. Schedule of Values: For major lump sum bid items, submit a schedule of dollar values based on the Contract Bid amounts. Break down into component parts each bid item involving a series of operations for which progress payments may be requested. (i.e.

material components, fabrication of units, galvanizing, delivery, erection, etc.) The total costs for the component parts shall equal the bid amount for that item, and the total cost of all items shall equal the contract sum. The Contracting Officer may request data to verify accuracy of dollar values. The Schedule of Values will form the basis for progress payments.

1.3 SHOP DRAWINGS, PRODUCT DATA AND SAMPLES:

A. General Procedures:

1. As specified in the individual sections, forward submittals to the Government at least

10 days before need for approval. Unless a different number is specified, submit three copies of each shop drawing and calculations including lightweight concrete mix design and three copies of all other submittals requested, all of which will be retained by the Government. Submit any additional copies that are to be returned.

2. Coordinate all submittals and review them for legibility, accuracy, completeness, and compliance with contract requirements. Forward submittals that are related to or affect one another as a package to facilitate coordinated review.

3. List submittals numerically on a transmittal letter with date of submittal and content of submittal. Transmittal letter shall be on Contractor’s letterhead or other approved format. All submittals shall be uniformly transmitted.

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4. Specific Procedures:

a. Shop Drawings: Identify each copy of shop drawings with contract drawing number in lower right hand corner.

b. Samples: Samples shall be large enough to illustrate clearly the functional characteristics and full range of color, texture, or pattern.

c. Manufacturer’s Literature: Submit only pertinent pages; mark each copy of standard printed data to identify products referenced in specification section.

d. Aggregate Samples: Samples shall be large enough to perform the necessary tests and gradings required by the specifications. Twenty-five pound sample minimum.

e. Concrete lightweight mix design: Submit sources of aggregates and type of cement to be used and the manufactures mix proportions along with representative compressive strength tests performed by a certified testing laboratory.

C. Government’s Review:

1. After approving submittals, the Government will return Contractor’s copies.

2. If submittals are not approved, Government will return all copies to Contractor with reasons for rejection. Resubmit, identifying changes.

3. Any work done before submittal approval shall be at Contractor’s own risk, and subject to rejection.

1.4 APPROVED EQUALS AND SUBSTITUTIONS:

A. For each item proposed as an ‘approved equal’, submit a separate request. With each request, submit supporting data, including:

1. Drawings and samples as appropriate.

2. Comparison of the qualities of the proposed item with that specified.

3. Changes required in other elements of the work because of the substitution.

4. Name, address and telephone number of vendor.

5. Manufacturer’s literature regarding installation, operation and maintenance, including schematics for electrical and hydraulic systems, lubrication requirements, and parts lists. Describe availability of maintenance service, and state source of replacement materials.

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B. A request for approval constitutes a representation that the contractor:

1. Has investigated the proposed item and determined that it is equal or superior in all respects to that specified.

2. Will provide the same warranties for the proposed item as for the item specified.

3. Has determined that the proposed item is compatible with interfacing items.

4. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution.

5. Waives all claims for additional expenses that may be incurred as a result of the substitution.

C. New Construction Materials: The Contractor is encouraged to submit for approval products made out of recycled or environmentally responsible material. Every effort will be made by the Government to approve these materials.

1.6 MANUFACTURER’S INSTALLATION INSTRUCTIONS: When contract documents require compliance with manufacturer’s printed instructions, provide one complete set of instructions for the Government and keep another complete set of instructions at the project site until substantial completion.

PART 2 - PRODUCTS

PART 4 - MEASUREMENT AND PAYMENT

4.1 SUBMITTALS: Payment will be included in the bid schedule for which this work relates, and no separate payment shall be made.

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SECTION 05490

COURTESY BOARDING FLOATS

PART 1 – GENERAL

1.1 DESCRIPTION: The work of this section consists of furnishing all materials, equipment and labor necessary for the construction and installation of articulated courtesy boarding floats, gangplanks, hinges, anchors and associated work as shown on the drawings. Boarding floats are to be at existing boat launching facilities located on Shasta and Trinity Lakes, on the

Shasta-Trinity National Forest.

1.2 SUBMITTALS: As specified in Section 01300.

A. Submit shop drawings and flotation and freeboard calculations on all supplied floats, gangways and floating structures. Courtesy boarding floats shall conform to the requirements of the State of California, Department of Boating and Waterways.

B. Loading requirements for floatation are as follows:

1. Dead load only: Boarding floats are to float level with maximum longitudinal differential of 1” in 10’ and transverse differential of 1” for the width of the float.

2. Uniform live load: 25 lb. per square foot, boarding floats.

3. Live point load: 650 lb. applied at 12 inches from the edge of the float.

C. Freeboard requirements are 10 inches minimum for fully loaded boarding float (dead load plus live load), and 20 inches maximum for dead load only.

D. Minimum wind loadings are to be 70 lb. per lineal foot of float.

1.3 FLOATS: Floats shall meet the minimum requirements of the State of California, Department of Boating and Waterways, layout design and construction handbook for small craft boat launching facilities.

PART 2 – PRODUCTS

2.1 MATERIALS:

A. Decking:

1. Decking shall be of lightweight concrete as shown on the drawings, and shall conform to ACI publication 213R-87 and the following requirements:

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a. Lightweight concrete materials shall consist of ½ inch glass mountain pumice coarse aggregate, river washed fine aggregates, Calaveras type II cement, with

3-6% air entrainment. Concrete mix design shall be supplied by the contractor to meet the design criteria.

b. Maximum coarse aggregate unit weight shall be 60 pounds per cubic foot.

Maximum unit weight in plastic state shall not exceed 125 pounds per cubic foot. Minimum compressive strength of concrete for completed deck panels shall be 4000 psi. The composite deck slab members shall be capable of carrying a superimposed uniform live load of 100 pounds per square foot, and a point load of 300 pounds applied at the center of the panel.

c. Reinforcement shall be as shown on the drawings, and conform to ASTM

A615.

d. Deck panel finish shall be heavy broom.

2. Structural steel shall conform to ASTM A-36, and shall be hot-dipped galvanized.

Connections shall be full penetration continuous welds. Grind, fill, and dress welds to produce a smooth, flush exposed surface in which welds are not visible after completion. Galvanize after fabrication.

3. Galvanizing repair paint shall be high zinc dust content paint for re-galvanizing welds in steel, complying with SSPC-20.

B. Fenderboards and bumpers.

1. Fenderboards shall be 2-1/8 x 4-1/2 engineered composite material capable of resistance to water penetration and ultraviolet degradation attached to the boarding and mooring floats as shown on the drawings. Fenderboard materials shall be commercially available for maintenance and replacement purposes. All edges and corners shall be chamfered with ¼” radius.

C. Gangplanks.

1. Materials: Gangplank material shall be aluminum rectangular tube framing with aluminum interlocking deck slats as shown on the drawings. Aluminum components shall be manufactured from 6061-T6 alloy. Decking shall be supplied with ribbed non-skid surface. Gangplank rollers shall be 3" in diameter by 15” long with load rating of 2900 lb. and Delrin bearings as shown on the drawings.

D. All welding shall conform to AWS, AISC and A50 specifications.

E. Cleats: Cleats shall be 10-inch overall length, heavy ship or dock cleats made of cast ductile iron, hot-dipped galvanized, equivalent to Item No. 503D, as supplied by

Henderson Marine Supply, Inc. (510 235-2050) or equal. Cleats are to be located on top of the deck and fastened through the wood deck with 5/16-inch diameter, hot-dipped galvanized, hex head machine bolts which recess into the top of the cleat, hot-dipped

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F. Locknuts: Locknuts shall be M-F Lock Nuts, available from Kortick Manufacturing

Company, San Francisco, (415 822-6660), or approved equal. These nuts have curved faces which flatten when tightened, causing the threads to bind on the bolt. The locknut is installed on the bolt after the hex nut is installed.

G. Flotation Tubs: Pontoons shall be molded of seamless, high density polyethylene, and shall contain ultraviolet inhibitors and carbon black pigment to protect against U.V.

deterioration. The minimum wall thickness shall be 0.200 inches. The pontoons shall be completely filled with closed cell, expanded polystyrene. The polystyrene density shall be between 1.0 and 2.0 pounds per cubic foot. Pontoon lids shall be completely sealed.

H. Wheels and Rollers: Float rollers shall be 10” in diameter, 3-1/2” wide Phenolic 4000-lb., Colson 8,000.12.389 with Delrin bearings, with a load capacity of 4000 pounds, or approved equal. Gangplank rollers shall be in conformance with 2.1 C-1 of this section.

Removable pneumatic wheels shall be 18” diameter rubber tires, Hamilton Series PR with a minimum bearing capacity of 1650 lbs. or approved equal.

I. Bolts and attachments: The head diameter and height of 5/8” diameter mushroom head bolts shall be 2-1/4” and 5/16”, respectively. ½ inch carriage bolts shall have a minimum head diameter of 1.08 inches and a minimum square shank depth of .25 inches. All bolts shall conform to ASTM A307 and have a minimum tensile strength of 60 ksi and be hot-dip galvanized. Mushroom head bolts shall be equivalent to ‘Economy Bolts’, distributed by Henderson Marine Supply, Inc. (510 235-2050) or approved equal.

J. Railings: Railings for boarding floats shall be as shown on the drawings and manufactured from 1-1/2” nominal diameter, Schedule 40 extruded aluminum tubing.

Attachment to floats shall be as shown on the drawings.

K. Anchorage Components: Anchorage system(s) shall consist of a steel ‘carriage’ with steel rollers to attach to the existing guide rails and ¼” adjustable anchor chain from the carriage to the chain box as shown on the drawings. Anchorage components shall be manufactured from ASTM A-36 steel. Rollers shall be stainless steel with delrin bearings.

3.1 INSTALLATION:

A. Install in accordance with the drawings and reviewed and accepted shop drawings.

B. Use only mechanics skilled in the installation of this type of work.

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3.2 WELDING:

A. Clean parts to be welded to provide surfaces free of grit, grease and other contaminates.

B. Surfaces to be welded may not be cut with oxygen.

C. Perform welding with an inert gas-shielded arc process. Develop machine settings by making test welds using the same material alloy and geometry as the work pieces and testing and sample welds destructively.

D. Make welds using a filler metal alloy compatible in corrosion resistance with the base metal.

E. Welding: To be performed only by welders certified in accordance with AWS B 3.0, using certified procedures, materials and equipment appropriate to the work.

F. Conform to ANSDI/AWS D 1.2.

PART 4 - MEASUREMENT AND PAYMENT

4.1 Payment will be included in the bid schedule under 02489 (01) Boarding Float Assembly.

Measurement will be each item furnished and installed.