Attachment 1 - Specifications.pdf

NATIONAL FORESTS IN NORTH CAROLINA

NANTAHALA RANGER DISTRICT

WHITESIDE MOUNTAIN RECREATION AREA

OBSERVATION DECK REPLACEMENT

APRIL 2010

NFs in NC Engineering, Heritage, and Recreation

Facilities Group

SPECIFICATION INDEX

DIVISION 1 - GENERAL REQUIREMENTS

01010 - Summary of Work 01050 - Field Engineering 01300 – Submittals

DIVISION 2 - SITE WORK

02110 – Clearing 02200 – Structure Demolition 02210 - Site Grading 02540 – Erosion and Sedimentation Control 02821 – Seeding

DIVISION 3 - CONCRETE

03300 – Cementitious Epoxy Grout

DIVISION 5 - METALS

05500 - Metal Fabrications

DIVISION 6 - WOOD AND PLASTICS

06100 – Carpentry

DIVISION 9 - FINISHES

09900 - Painting

SECTION 01010

SUMMARY OF WORK

PART 1 - GENERAL

A. The Contractor is to provide the complete construction of the observation deck as specified herein and as shown on the drawings.

B. Permits

None required.

C. Coordination

1. Construction activities shall be coordinated with the Assistant District Ranger, Crystal Powell through the project COR.

D. Storage of Materials

1. The Contractor may store materials and equipment at the work site at his own risk. All materials must be kept in an area designated by the C.O. and be neat and orderly.

2. The Contractor shall install barricades or tape barriers around all open excavations and storage areas.

E. Construction Schedule

1. A proposed schedule of work for the project construction shall be submitted to the C.O. for approval

10 days prior to starting construction.

F. Existing Facilities

1. The Contractor may use the existing vault toilet at the trailhead parking lot.

2. The Contractor must furnish electrical generators as needed.

3. There is no potable water at the site. The Contractor will be required to furnish his own water for construction.

G. Project Closeout

1. Not applicable.

SECTION 01050

FIELD ENGINEERING

A. The locations of all proposed new work relative to existing features are indicated on the construction drawings.

B. The Contractor shall be responsible for field layout of all items of work.

SECTION 01300

SUBMITTALS

A. The Contractor shall be required to furnish the following to the C.O. prior to commencing any work that relates to a respective submittal (three copies of all submittals required).

1. Epoxy Grout for concrete repair.

2. Decking material including hardware.

3. Any other equipment that is a substitute for specified equipment.

B. The Contractor shall obtain approval in writing before installation of equipment.

SECTION 02110

CLEARING

A. Clearing is not required for the project. The Contractor must take all necessary measurements not to disturd the existing vegetation including branches that may be overhanging the trail system.

SECTION 02200

STRUCTURE DEMOLITION

PART 1 – GENERAL

Work included in this section covers the removal of the existing concrete deck and railing.

PART 2 – PRODUCTS

A. None

PART 3 – EXECUTION

A. Demolition of the existing concrete reinforced deck shall be accomplished with the use of a pneumatic jackhammer and small sledge hammers.

B. Do not damage the existing steel beams during demolition.

C. The removed concrete shall be crushed in-place with jackhammers and sledge hammers to a 3 inch maximum size. Incorporate the crushed concrete into backfills and place excess concrete on the adjacent trail and eroded areas as directed by the COR. Cover the crushed concrete with native soil.

D. Remove all existing wooden falsework and miscellaneous metals off Forest and dispose off in a legal manner.

SECTION 02210

SITE GRADING

A. This section covers all required site grading and the final dressing of the site within the construction area.

PART 2 - PRODUCTS

A. Crushed concrete.

PART 3 - EQUIPMENT

A. The Contractor must utilize compact utility vehicles for hauling materials to the site such as the Bobcat 2200 4X4 Utility Vehicle and other high clearance equipment designed to travel on steep grades and heavily eroded areas.

B. Vehicle access ends approximately within 500 feet of the deck site. The Contractor must haul all materials and tools by hand for the last 500 feet of trail.

PART 4 - EXECUTION

A. Excavation shall be limited to the removal of the soil butting against the existing deck.

B.

Do not excavate outside the width of the existing deck.

C. Mix the crushed concrete generated from the removal of the existing deck with the removed soil to fill and tie the existing trail to the new deck.

SECTION 02540

EROSION AND SEDIMENTATION CONTROL

A. This work consists of temporary and permanent measures as specified herein, to prevent and control soil erosion and sedimentation.

PART 2 - PRODUCTS

A. Silt fences shall be pre-fabricated with 1-½” square, hardwood posts, Mirafi Silt Fence, or approved equal.

B. Standard size hay or str

C. aw bales with 2” x 2” x 36” long stakes.

PART 3 - EXECUTION

A. The Contractor shall monitor the performance of all erosion and sediment control practices and make minor adjustment as needed on a day-to-day basis.

B. Temporary controls shall be dismantled and disposed of after the disturbed soil has been re-vegetated.

C. Install silt fence and hay bales as directed by the COR.

SECTION 03300

CEMENTITIOUS EPOXY GROUT

A. This section covers concrete repair materials and their application.

A. The concrete repair material shall be a cementitious epoxy grout, TIGERCRETE SP as manufactured by

GARON, tel. number 1-800-631-5380 or approved equal.

1. Concrete bonding agent shall be THINSET as manufactured by GARON.

A. Remove spalled concrete down to sound concrete. Remove dust particles with compressed air hose.

B. Apply bonding agent in strict accordance with the manufacturer’s instructions.

C. Apply concrete repair material in accordance with the manufacturer’s instructions. Deep patch areas shall be formed as directed by the COR. At least one side of the patch shall be formed in order to maintain straight lines.

SECTION 05500

METAL FABRICATIONS

PART 1 - GENERAL

A. Work in this item includes all structural and miscellaneous metal and other related items.

PART 2 - PRODUCTS

A. Steel pipe, steel angles and other miscellaneous steel shall conform to ASTM A-36, to the sizes and layout shown on the drawings.

B. Steel primer shall be alkyd, DevGuard 4100 by Devoe Coatings.

C. Steel finish coats shall be Acrylic, Semi Gloss Enamel, DeveFlex 4206 Gray color by Devoe Coatings.

Submit color chart to COR for specific color selection.

A. The existing steel I-beams shall be cut to size and cleaned prior to priming and painting. Cleaning shall consists of removing all loose rust scales and concrete residue with steel brushes and scrapers.

B. The Contractor shall provide all framing and falsework necessary for the erection.

C. At final attachment, all miscellaneous metal and other items shall be rigid and secure.

D. After erection, touch up field connections and abraded places on all steel with shop paint.

E. Field apply two finish coats to all steel structures.

SECTION 06100

CARPENTRY

A. This section includes carpentry work for the construction of the observation deck.

A. All framing material shall be treated #1 southern yellow pine. Treatment shal be 0.60 ACA or CCA.

B. Rough Hardware - Furnish all items of rough hardware required to complete the work. Nails, Bolts, nuts, and washers shall be hot-dipped galvanized, conforming to ASTM A153.

C. Decking material shall be 2x6 “Trex” Accents, Winchester Gray Color.

1. Decking screws shall be 3” long, “Trap Ease” by Fastenmaster, gray color.

A. Framing shall be neat with square cuts, tight joints and to the layout and elevations shown on the drawings.

B. Install “Trex” decking per manufactuer’s recommendations

1. Width-to-Width and end-to-end gapping shall be ¼”.

2. Maximum overhang is 3 inches perpendicular.

3. Install two screws per connection.

SECTION 09900

PAINTING

A. This section includes all paint and related items.

B. Quality Assurance

1. All paints, enamels, varnishes, and stains shall be furnished in original, unopened containers bearing a label to include the manufacturer's name, type of paint or stain, manufacturer's stock number, color, and instructions for application.

C. Delivery, Storage, and Handling

1. All materials required for painting, varnishing, and staining shall be delivered to the job site in original containers with labels intact and seals unbroken.

2. Store in a suitable location and comply with health and safety regulations.

3. All oily rags, waste, etc., and all flammable cleaning compounds shall be removed from the building every night to avoid fires.

4. Upon completion of work, all surplus material and debris from the paint work shall be removed from the job site.

D. Environmental Requirements

1. Comply with the manufacturer's recommendations as to environmental conditions under which coating and coating system can be applied.

2. Do not apply paint in areas where dust is being generated.

E. Protection

1. Cover or otherwise protect finished work of other trades and surfaces not being painted.

PART 2 - PRODUCTS

A. See Section 05500

1. Submit sample charts for all specified paints.

B. Mixing

1. Apply paint of consistency recommended by manufacturer. Additional thinning not permitted

A. Preparation of Surfaces

1. Prepare surfaces as necessary to receive painting as specified. Retouch shop coats and prime coats as necessary.

2. Fill and sand as necessary to provide a suitable surface for painting.

3. Clean surfaces to be painted. Spaces in which painting will be done shall be broom-cleaned and dust-free.

4. Remove soil, prints, stains, and adhered materials prior to beginning of work.

5. Meet requirements of other portions of Specifications for preparation of specific items.

B. Application

1. No exterior painting shall be done in rainy, damp, or frosty weather or until the surface is thoroughly dry.

2. No paint shall be applied when the temperature is below 40 degrees, or when the temperature is likely to be reached within 48 hours.

3. All paint shall be applied in accordance with the manufacturer's recommendations unless otherwise directed.

4. All coats shall be thoroughly dried before applying succeeding coats with sanding between coats where necessary. Comply with manufacturer's recommendation for drying time between succeeding coats.

5. Finish coats shall be smooth, free of brush marks, streaks, laps, or pole of paints, and skipped or missed areas. Finished metal surfaces shall be free of skips, voids or pinholes in any coat.

6. Leave all parts of moldings clean and true to details with no undue amount of paint in corners and depressions.

7. Apply paint, enamel, and varnish with suitable brushes. The rate of applications shall not exceed that as recommended by the paint manufacturers for the surface involved.

8. Make edges of paint adjoining other materials or colors stain and sharp with no overlapping.

C. Cleaning

1. Touch up and restore finish where damaged.

2. Remove spilled, splashed, or splattered paint from all surfaces.

3. Do not mar surface finish of item being cleaned.