Scope.pdf

Floating Boat House Manufacture and Install

Scope of Work

General: Provide all engineering, labor, materials, supplies, and equipment necessary to manufacture and fully install a galvanized steel and/or aluminum floating boathouse. The design must be box truss frame 3-slip/bay floating boathouse to include three electrically operated roll-up canister style bay garage doors, one standard all metal access door with lock, three electric interior boat lifts, two electric power winch’s and anchor system, and the install of Corps provided connector walkway section. The boat house must include an interior and exterior 200 amp electrical system with complete electrical connections running to shore service. The Contractor must engineer and design the boathouse so it is attached at it’s center to an existing floating walkway furnished by the Corps of Engineers and be anchored with weights and cables at two other points with electric operated winches and cables attached to submerged weights.

Site Visit: A site visit to the installation site is recommended for each prospective bidder for an on-site perspective concerning the Corps furnished walkway and its attachment as well as an overall view of the expected installation location. Those visiting the site, or requesting by mail, may pick up an aerial photographic view of Exhibit 1: Boathouse Replacement Location showing the expected placement of the boathouse on the. For appointments for site visit call Operations Manager Terry Ramsey at 336-921-3390 Monday – Friday, 9 am – 4 pm.

Proposed Design: A draft design plan must be submitted with your quote which details as much as possible the proposed design and materials to be used. No less than 30 days after award, a final design must be submitted for approval of the COR and bearing a signed North Carolina Professional Engineer’s seal before any work may proceed.

Construction Options: The Contractor has the option to build the structure on-site, on or off water, at a location approved by the COR or ship the structure from an off-site location. The boathouse must be installed and be fully operational as detailed below on or before April 30, 2010.

Additional Detailed Specifications: Additional specifications and clarifications as detailed below must be included in the design are as follows:

1. Overall Design: The design must be a rectangular box truss galvanized steel (or aluminum) metal frame boat house, with framing a maximum of 24 inch on center. See Exhibit 2: Boathouse General Design for the basic boathouse plan with an overall inside dimension of approximately 46 ft. x 31 ft. and outside dimension (including exterior uncovered walkway) of approximately 58 ft. x 37 ft. with three interior pull-in slips and doorway openings as follows:

- One (1) pontoon open water slip measuring approximately 10 ft. x 26 ft. with a 10 ft. x 8 ft. slip doorway opening.

- Two (2) boat slips measuring approximately 10 ft. x 22 ft. with a 10 ft. x 8 ft. slip doorway opening.

2. Walkways Interior/Exterior: The design must include an approximately 6 ft. wide uncovered exterior walkway surrounding the boathouse on the three sides without slip openings. All interior walkways and fingers between slips shall be a minimum of 4 ft.

wide and must be provided between and around open slips except at the roll up doorway slip entrance side. All water side walkway edges, inside and outside, will have 100 % coverage of rubber or vinyl (or alternative material approved by COR) rub rail, corner bumpers and galvanized steel tie off cleats spaced every 6 feet. All walkway surfaces are to be longitudinally applied, minimum of 2 inch x 6 inch (2 inch x 8 inch where appropriate) treated to 0.4 p.c.f. CCA retention #1 Southern Yellow Pine wood decking (or an approved equal quality alternative decking material may be submitted for approval by the COR). Wood decking shall be attached to frame utilizing a minimum of a 5/16 inch x 2 ¼ inch self taping screw.

3. Roof: The roof shall be a gable style system with 10 ft. eaves with a 1.5 to12 pitch with a 1 ft. minimum overhang on the two end sides. Roof sheathing shall be heavy 26 gauge steel commercial high rib metal roof with a G-90 Galvalume warranted for 30 years, or COR approved equal substitute. The roof structure will include an adequate ridge cap, utilize appropriate sized zinc coated screws with neoprene washers on 12 inch center. Roof support beams will be a minimum of 2.5 inch square x 14 gauge galvanized steel tubing material utilizing appropriately sized all galvanized bolts, nuts, and washers (an alternative tubular aluminum frame substitute structure may be considered for approval).

Superstructure Frame: Roof and wall supports columns shall be spaced no more than 10 ft. apart and be a minimum of 2 ¼ inch square galvanized steel tubing (or approved aluminum substitute). Galvanized steel Z Purlins shall be a minimum of 2.5 inch x 8 inch 16 gauge thickness and spaced no more than 36 inches apart (unless alternative design is approved by COR). Roof shall have a baked – on enamel finish with 45 year warranty.

Roof sheathing shall be coated with a G-90 Galvalume or COR approved substitute coating as a substrate for the baked on enamel paint with neutral color (i.e. brown or gray). A single walk through 3 ft wide x 6 ft-8 inch tall steel door with lock that opens to outside is to be centered directly in line with the walkway attachment. All components of the superstructure supporting the doorways, garage doors, decking, roof and wall sheathing shall be engineered and sized appropriately for weight, load, and wind effects, be galvanized steel, and be constructed by the final plan submitted to and approved by the

COR.

4. Walls: Metal wall sheathing shall be applied so as to completely seal and weatherproof the structure from decking to roof. Wall sheathing shall be heavy 26 Gauge steel metal with a G-90 Galvalume coating (or COR approved substitute) and have a 30 year warranty PBR metal sheathing. Wall framing shall be galvanized steel (or aluminum) placed on a maximum of 24 inch on center, utilizing a minimum of 8 inch x 2 inch with 24 inch on center.

5. Floatation: Floatation supporting the dock structure shall be commercially manufactured for marine environments polystyrene totally encased in high density polyethylene. Floatation must meat all Corps of Engineer National Shoreline Management Regulations, have a 15 year warranty. No Formex , foam bead, or metal injected drum floatation allowed. Floatation must be adequate and designed to completely float the boathouse structure, as well as, support the weight of Corps provided galvanized steel walkway section, three Corps boats (weight 4,600 lbs. each) on lifts. and normal load of rain, snow, and other environmental elements.

6. Walkway Connections (Dock To Shore): The boathouse must be designed to be attached to an existing galvanized steel frame wood deck walkway system (provided by the Corps and stored on shore) at it’s center point where the access doorway must be located. A floating hinged steel cover plate must be manufactured and installed to cover the gap connections found at two locations to assure a safe walking surface exists.

Location 1 is at the gap formed between the dock and the walkway. Location 2 is the gap formed between the two sections of walkway. The Contractor is responsible for connecting one existing Corps furnished approximately 40 ft. long galvanized steel frame walkway section (provided by the Corps and currently located on adjacent shoreline) to bridge the gap between the new dock and the floating end of a walkway already in place and on the water. The Contractor is encouraged to examine this connector walkway system so as to be familiar with its installation requirements, weight, and required equipment to set in place.

7. Winch, Cable, and Weighted Anchors: In addition to the center walkway connection, the Contractor must mount one heavy duty electric operated power winch on each of the two front corners (opposite the entrance walkway) of the uncovered walkway deck and steel superstructure, per manufacturer’s instructions. The power winch shall be equal to Gilmore-Kramer1200 Series with Maintained Selector Switch Model 12-15SMA (or COR approved substitute). The winch must have a minimum of 130 ft. of ¼ inch (7x19) galvanized steel cable. Each winch cable end will be attached to a submerged concrete anchor. Weights must be located and engineered of a size and weight necessary to neutralizing wind sheer that might act to dislodge the dock from it’s intended location and walkway.

8. Electrical System: A complete boathouse electrical system must be installed utilizing a National Electric Code (NEC) certified licensed electrician. This system must be installed per the NEC for outside, wet locations. Upon completion of the project, a signed certification statement must be provided the COR from the electrician stating the system is safe and installed per the NEC regulations. Specific requirements of the system must include the following:

a. Design and install a 120 volt, GFCI protected electrical system with a 200 amp circuit breaker box located inside boathouse. This system must be adequate to support all boathouse electrical needs which will include two (2) anchor power winches (each requiring a separate 15 amp breaker), three roll up bay doors (each requiring a separate

20 amp breaker), three (3) boat lifts (each requiring a separate 15 amp breaker), three (3) interior overhead lights (interior light system requires separate breaker), and four (4) exterior security lights (exterior system requires separate breaker), and two (2) interior GFCI protected receptacles at locations approved by COR. All components of the electrical system must be commercially manufactured for use on electrical service.

b. The electrical system must be installed so as to provide a safe 120 volt, 200 amp electrical service connection from the floating boathouse to shore running along the two 40 ft. lengths of the connector walkways to an existing concrete bulkhead and then to a Contractor installed junction box with a full cut off switch. The Contractor must design and allow for the movement of the electric cable at all hinge points as the floating walkway and boathouse will move with rising and lowering lake elevations. From the junction box, all electrical cable will be run underground per local and national codes to an electrical source located approximately 100 yards away. At this service connection a second cut off switch and box must be establish capable of shutting off electric service to the boathouse from that point. Potential contractors are advised to visit the site to verify exact electrical run distances and location obstacles.

c. All boathouse and walkway wiring shall be of the correctly sized (gauge & type) to deliver appropriate service requirements indicated and per the NEC. All wiring shall be enclosed in metal conduit except at flexible joint locations and where underground wire cable is utilized.

d. One interior overhead light with a 75 watt energy saving bulb installed, shall be centered above each boat slip and controlled by a separate switch to each. All switches may be located within the same switch box located inside within 1 ft. of the access doorway.

e. One exterior mounted dusk-to-dawn timed spot light (set to operate from 8:00 pm to 6:00 am) with 75 watt energy saving bulbs installed shall be installed on each of the three non-garage door exterior walls. These lights should be positioned so that they provide light coverage on all exterior walk ways and the single access door.

f. One exterior mounted spot light with a 75 watt energy saving bulb installed, light control switch, and a single GFCI protected receptacle shall be pole mounted on a galvanized steel or aluminum pole adequate to support the switch box, light, and receptacle within 2 feet of the existing concrete bulkhead. The light should be positioned so that it provides light coverage on the upper portion of the floating walk way. The light shall be mounted 15 ft. above ground level, light switch and box at three feet above the bulkhead walking surface, and the receptacle 18 inches above the bulkhead surface. The support pole shall be adequately installed in the ground with concrete and be in a level position.

g. Two (2) GFCI protected receptacles with covers shall be installed in the interior of the boat house on opposite ends at a convenient location approved by the COR.

h. All outdoor fixtures, receptacles, and boxes must be approved for outside, wet locations. Wiring must be fully enclosed in conduit at all locations except at joints along the floating walkway and along the run from the junction box located at the bulkhead to the service connection.

9. Roll-Up Slip Bay Doors: Each of the three slip entranceways will be covered with an electrically operated roll-up canister style steel garage door equal to Wayne-Dalton Corp.

Model DS-350 (or COR approved substitute) complete with motors and controls to make operational. Roll-up door curtains must be hot-dipped, galvanized 26 gauge steel and be a neutral color of (i.e. brown, gray, or tan). Each door shall be operated separately from a separately mounted switch box with a push button on/off switch located within the interior of the boathouse. When extended, roll-up doors must be able to completely close off and seal the slip opening from top of door to the top of the water surface level and generally cover completely the area of the 10 ft. by 8 ft. doorway slip opening.

10. Boat Lifts: Three electrically operated boat lifts, equal to UltraLift2 HydroHoist Model 4400UL2 (or COR approved substitute), shall be installed complete with motors and all equipment to make operational. Three lifts, having a minimum lifting capacity of 4,400 lbs., is required to be installed in each of the two 10 ft x 22 ft slips and the one larger 10 ft x 26 ft slip. The lift must be installed per the manufacturer’s specifications so as to support boats completely out of the water. Lifts must be made of structural steel frames and fasteners must be hot-dip zinc, galvanized.

11. Inside Storage Compartments: At the front of each of the two 10 ft. x 22 ft. smaller slips, a 4 ft x 10 ft completely enclosed storage area with 3 ft wide metal access door (opening outwards) with locks must be constructed. Sides and roof shall be metal sheathing fastened to metal frame. (See Exhibit 2) similar to that used on the other sections of the boathouse structure. Within the storage area wood decking floor similar to the rest of the walkways structure is to be installed. No shelves are required.

The quote must include the complete construction, either on or off site, delivery, off-loading, floating, and attachment to the walkway of all materials, supplies, and products necessary to erect the boathouse. Installation site is adjacent to Dam Site Park Area of W.

Kerr Scott Reservoir, which is physically located at 499 Reservoir Road, Wilkesboro, NC 28697. A boat ramp is located adjacent to the installation site. Delivery dates must occur Monday through Friday between the hours of 8:00 a.m. and 4:00 p.m. Complete installation must occur on or before April 30, 2010.